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1. THE Flight and dispersal of shot-hole borer of tea (xyleborus fornicatus eichh., coleoptera: scolytidae)

Author:
CALNAIDO, D.
Source:
Entomologia experimentalis et applicata 1965 v.8 no.4 pp. 249-262
ISSN:
0013-8703
Subject:
Sri Lanka,   etc   ; Euwallacea fornicatus; air; flight; insects; periodicity; pests; spatial distribution; stems; tea;     Show all 10 Subjects
Abstract:
... The flight of Xyleborus fornicatus Eichh. a serious pest of tea in Ceylon, was studied, and it is concluded that the beetle is a migrant in which the flight habits are an evolved adaptation for aerial dispersal. The beetles fly by day, from 08.00 hours to 17.00 hours, and this flight periodicity was determined by the numbers of insects emerging from galleries in tea stems and taking off. Most of t ...
DOI:
10.1111/j.1570-7458.1965.tb00859.x

2. Evolutionary mechanisms in tropical ferns

Author:
MANTON, I.
Source:
Biological journal of the Linnean Society 1969 v.1 no.1-2 pp. 219-222
ISSN:
0024-4066
Subject:
Sri Lanka,   etc   ; Malaya; allopolyploidy; autopolyploidy; chromosomes; ferns and fern allies; Africa; India; Jamaica;     Show all 9 Subjects
Abstract:
... Cytotaxonomic work on tropical fern floras has now reached the stage at which it is possible to compare different geographical regions meaningfully. It is also possible, although the evidence is on a more restricted scale, to compare the taxonomic and geographical incidence of different evolutionary mechanisms of the kind which can be investigated by the experimental techniques of biosystematics. ...
DOI:
10.1111/j.1095-8312.1969.tb01820.x

3. Crown Distortion and Elephant Distribution in the Woody Vegetations of Ruhuna National Park, Ceylon

Author:
Dieter Mueller-Dombois
Source:
Ecology 1972 v.53 no.2 pp. 208-226
ISSN:
0012-9658
Subject:
Sri Lanka,   etc   ; Elephantidae; dry season; dunes; feces; food plants; forests; monsoon season; national parks; shrublands; surveys; wet season; woody plants;     Show all 13 Subjects
Abstract:
... A major wild elephant refuge occurs in the southeastern dry zone of Ceylon. The effect of the elephants on the woody vegetation is manifested in crown distortions mainly of the 2— to 5—m—tall woody plants. A survey of this phenomenon was made in 18 sample stands of four different structural woody vegetation types. A species crown—distorion index was established from summing the number of crown—dis ...
DOI:
10.2307/1934074

4. The modern Sirenia: their distribution and status

Author:
Source:
Biological journal of the Linnean Society 1973 v.5 no.4 pp. 297-338
ISSN:
0024-4066
Subject:
Sri Lanka,   etc   ; Dugong; aquatic animals; herbivores; mammals; meat animals; Australia;     Show all 7 Subjects
Abstract:
... The modern Sirenia have been little studied because of their present rarity and the difficulty of observing fully aquatic animals even though so large. These mammals are the only large aquatic herbivores. One of the three modern forms, Steller's seacow, is recently extinct; the dugong of the tropical Indo-Pacific region is now rare almost everywhere apart from some of the northern waters of Austra ...
DOI:
10.1111/j.1095-8312.1973.tb00708.x

5. The Red Latosols of Sri Lanka: I. Macromorphological, Physical and Chemical Properties, Genesis, and Classification

Author:
K. A. de Alwis; D. J. Pluth
Source:
Soil Science Society of America journal 1976 v.40 no.6 pp. 912-920
ISSN:
0361-5995
Subject:
Sri Lanka,   etc   ; acidity; aluminum oxide; bulk density; calcium; clay; clay fraction; exchangeable cations; illuviation; iron oxides; kaolinite; organic carbon; pH; particle size distribution; spatial distribution; total nitrogen;     Show all 16 Subjects
Abstract:
... The Red Latosols of Sri Lanka have developed on the Quaternary Red Earth Formation into very deep, excessively drained soils with weak horizon differentiation. The three major soil series of this subgroup, the Gambura, Mullaitivu and Wilpattu series, were studied from the point of view of their morphological properties, particle size distribution, bulk density, 1/3 and 15 bar moisture, pH, organic ...
DOI:
10.2136/sssaj1976.03615995004000060031x

6. The Red Latosols of Sri Lanka: II. Mineralogy and Weathering

Author:
K. A. de Alwis; D. J. Pluth
Source:
Soil Science Society of America journal 1976 v.40 no.6 pp. 920-928
ISSN:
0361-5995
Subject:
Sri Lanka,   etc   ; X-ray diffraction; clay; hematite; kaolinite; magnetism; mica; sand; silt; soil; soil formation; soil sampling; weathering;     Show all 13 Subjects
Abstract:
... Soil samples from the principal soil series of the Red Latosols of Sri Lanka were subjected to (i) mineralogical analysis of the fine sand fractions by density, magnetic and optical methods, and (ii) mineralogical analysis of the clay and silt fractions by X-ray diffraction, DTA, chemical, and electron optical methods in order to characterize these soils and elucidate their genesis. Mineralogical ...
DOI:
10.2136/sssaj1976.03615995004000060032x

7. Comparative studies of vegetative anatomy in the Theaceae of Sri Lanka

Author:
HERAT, TISSA R.; THEOBALD, W.L.
Source:
Botanical journal of the Linnean Society 1977 v.75 no.4 pp. 375-386
ISSN:
0024-4074
Subject:
Sri Lanka,   etc   ; Eurya; leaf blade; petioles; plant organs; stems; stemwood; stomata;     Show all 8 Subjects
Abstract:
... Anatomical characters of the mature leaf blade, petiole, young stem and wood were examined in order to substantiate taxonomic boundaries between genera and species of Theaeeae in Sri Lanka. Two species of Temstroemia, one of Adinandra, four of Eurya and two of Gordonia were studied. The presence of sclereids in most organs of the plant was found to be a common character within the family. However, ...
DOI:
10.1111/j.1095-8339.1977.tb01494.x

8. Adaptations of brown planthopper (nilaparvata lugens) populations to rice varieties in sri lanka

Author:
CLARIDGE, M.F.; HOLLANDER, J.; FURET, I.
Source:
Entomologia experimentalis et applicata 1982 v.32 no.3 pp. 222-226
ISSN:
0013-8703
Subject:
Sri Lanka,   etc   ; Nilaparvata lugens; Oryza rufipogon; honeydew; virulence; weight gain; wild rice;     Show all 7 Subjects
Abstract:
... Field populations of N. lugens were collected from 5 different cultivated rices and from wild rice, Oryza rufipogon, in Sri Lanka. Each population was tested in the laboratory for virulence by measuring weight gain and honeydew production on its own field host variety and on the other local varieties, as well as on the standards, TN1, Mudgo and ASD7. In local populations close adaptation with part ...
DOI:
10.1111/j.1570-7458.1982.tb03209.x

9. Choice of Varieties by Sri Lanka Rice Farmers: Comparing Alternative Decision Models

Author:
H. M. G. Herath; J. Brian Hardaker; Jock R. Anderson
Source:
American journal of agricultural economics 1982 v.64 no.1 pp. 87-93
ISSN:
0002-9092
Subject:
Sri Lanka,   etc   ; agricultural economics; decision support systems; farmers; models; probability distribution; profit maximization; rice;     Show all 8 Subjects
Abstract:
... Sri Lanka rice farmers are faced with a choice between traditional and high‐yielding rice varieties. Three risky‐choice models are compared to explain producer behavior. Forty farmers with typically small rice areas were studied. Choice criteria compared were multiple (two)‐attribute utility maximization, single (profit)‐attribute utility maximization, and expected profit maximization. Expected ut ...
DOI:
10.2307/1241176

10. Longevity, Life History, and Relative Body Wall Size in Sea Urchins

Author:
Thomas A. Ebert
Source:
Ecological monographs 1982 v.52 no.4 pp. 353-394
ISSN:
0012-9615
Subject:
Sri Lanka,   etc   ; Echinometra; Tripneustes gratilla; animals; atolls; equations; integument; life history; longevity; probability; regression analysis; survival rate; Hawaii; Israel; Kenya; New South Wales; Queensland; Seychelles; Western Australia; Zanzibar;     Show all 20 Subjects
Abstract:
... Annual survival rates in 38 populations of 17 sea urchins species in the Indo—West Pacific were related to relative size of the body wall and exposure to the surf. The urchin species are: Heterocentrotus trigonarius, H. mammillatus, Colobocentrotus atratus, Echinometra mathaei, E. oblonga, and Heliocidaris erythrogramma in the family Echinometridae; Prionocidaris baculosa in the Cidaridae; Stomopn ...
DOI:
10.2307/2937351

11. An annotated check-list of the Pteridophyta of Ceylon

Author:
SLEDGE, W.A.
Source:
Botanical journal of the Linnean Society 1982 v.84 no.1 pp. 1-30
ISSN:
0024-4074
Subject:
Sri Lanka,   etc   ; Asplenium; Athyrium; Bolbitis; Deparia; Polystichum; indigenous species; new combination; skidders; weeds; India;     Show all 11 Subjects
Abstract:
... The indigenous species of Pteridophyta known to occur in Ceylon number 314. In addition, 18 naturalized species occur as weeds of cultivation or as introduced aliens. Fifty-seven species are endemic to Ceylon and 28 non-endemic species are absent from India. Lists of these and other phytogeographical groupings are given. The full list of species is followed by comments on the taxonomy or nomenclat ...
DOI:
10.1111/j.1095-8339.1982.tb00357.x

12. Studies on the constituents of medicinal and related plants in Sri Lanka. I. New triterpenes from Hedyotis lawsoniae

Author:
Kikuchi, T.; Matsuda, S.; Kadota, S.; Sakai, Y.; Namba, T.; Watanabe, K.; Dissanayake, D.M.R.B.
Source:
Chemical & pharmaceutical bulletin 1984 v.32 no.10 pp. 3906-3911
ISSN:
0009-2363
Subject:
Sri Lanka,   etc   ; Hedyotis; medicinal plants; terpenoids; chemical constituents of plants;     Show all 5 Subjects
DOI:
10.1248/cpb.32.3906

13. The alkaloidal constituents of goda-manel (Crinum zeylanicum L.) a Sri Lankan folk medicine

Author:
Tsuda, Y.; Kashiwaba, N.; Kumar, V.
Source:
Chemical & pharmaceutical bulletin 1984 v.32 no.8 pp. 3023-3027
ISSN:
0009-2363
Subject:
Sri Lanka,   etc   ; Crinum; medicinal plants; chemical constituents of plants;     Show all 4 Subjects
DOI:
10.1248/cpb.32.3023
PubMed:
6518584

14. Composition of raw and parboiled rice bran from common Sri Lankan varieties and from different types of rice mills

Author:
Palipane, K.B.; Swarnasiri, C.D.P.
Source:
Journal of agricultural and food chemistry 1985 v.33 no.4 pp. 732-734
ISSN:
0021-8561
Subject:
Sri Lanka,   etc   ; rice bran; varieties; feeds;     Show all 4 Subjects
DOI:
10.1021/jf00064a042

15. Studies on the constituents of medicinal and related plants in Sri Lanka. II. Isolation and structures of new gamma-pyrone and related compounds from Hypericum mysorense Heyne

Author:
Kikuchi, T.; Kadota, S.; Matsuda, S.; Tanaka, K.; Namba, T.
Source:
Chemical & pharmaceutical bulletin 1985 v.33 no.2 pp. 557-564
ISSN:
0009-2363
Subject:
Sri Lanka,   etc   ; chemical constituents of plants; Hypericum; medicinal plants;     Show all 4 Subjects
DOI:
10.1248/cpb.33.557
PubMed:
4017108

16. An economic analysis of government interventionmeasures in the coconut industry of sri lanka

Author:
H W S de Silva
Source:
CORD. Coconut research & development 1985 v.01 no.01 pp. 1-9
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconut meal; coconuts; desiccated coconut; economic analysis; exports; industry; public investment; research;     Show all 9 Subjects
Abstract:
... The apparent objectives of the govemment intervention measures in the coconut industry are identified and ranked. The inadequacy of data prevents estimation of basic coefficients re­quired for the analysis. The partial equilibrium‑analysis based on “a prior' expectations shows that the opportunities available to im­prove the tenns of trade in desiccated coconut and edible copra exports justify gov ...

17. Coconut seed gardens: a review

Author:
D.V. Liyanage
Source:
CORD. Coconut research & development 1986 v.04 no.01 pp. 15-20
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; research; tissue culture; Cote d'Ivoire; Indonesia;     Show all 6 Subjects
Abstract:
... Coconut Seed Gardens are necessary for the mass production of improved coconut cultivars.They will play a dominant role in dvelopment programmes until tissue culture creates new plants. Models of seed gardens developed in Sri Lanka, Indonesia and Ivory Coast are outlined. The differences between them with regard to structure and management are enumerated. ...
DOI:
https://doi.org/10.37833/cord.v4i01.208

18. The Effect of the Value of Time on Food Consumption Patterns in Developing Countries: Evidence from Sri Lanka

Author:
Ben Senauer; David Sahn; Harold Alderman
Source:
American journal of agricultural economics 1986 v.68 no.4 pp. 920-927
ISSN:
0002-9092
Subject:
Sri Lanka,   etc   ; breads; developing countries; equations; family resource management; food consumption; households; income; markets; opportunity costs; rice; women;     Show all 12 Subjects
Abstract:
... This study shows that the opportunity cost of women's time can affect household food consumption patterns in developing countries. Demand equations for rice, bread, and the ratio of bread to total cereal consumption are estimated for urban Sri Lankan households. The demand specification, which is based on the “New Household Economics,” includes as explanatory variables the woman's estimated market ...
DOI:
10.2307/1242138

19. Effect of wilting on the ascorbate content of selected fresh green leafy vegetables consumed in Sri Lanka

Author:
Kailasapathy, K.; Koneshan, T.
Source:
Journal of agricultural and food chemistry 1986 v.34 no.2 pp. 259-261
ISSN:
0021-8561
Subject:
Sri Lanka,   etc   ; vegetables; ascorbic acid; wilting; Centella asiatica; Basella alba; Lactuca sativa; Amaranthus tricolor; Ipomoea aquatica; Moringa oleifera;     Show all 10 Subjects
DOI:
10.1021/jf00068a026

20. Export floor prices in coconut products sri lanka experience

Author:
R. MALIGASPE
Source:
CORD. Coconut research & development 1986 v.02 no.02 pp. 24-36
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; exports; foreign exchange; research;     Show all 5 Subjects
Abstract:
... Export Floor Prices for Coconut Products appear to have been introduced in Sri Lanka initially in the late 1960s. Maximising of foreign exchange earnings and prevention of under‑invoicing by shippers especially under a tight trade and exchange system at that time and also possible expectation of higher proceeds to millers and coconut producers, appear to have been the main considerations when Expo ...
DOI:
https://doi.org/10.37833/cord.v2i02.197

21. An Analysis of Rubber Supply in Sri Lanka

Author:
Michael J. Hartley; Marc Nerlove; R. Kyle Peters Jr.
Source:
American journal of agricultural economics 1987 v.69 no.4 pp. 755-761
ISSN:
0002-9092
Subject:
Sri Lanka,   etc   ; agricultural economics; equations; green infrastructure; perennials; planting; rubber; Thailand;     Show all 8 Subjects
Abstract:
... An analysis of the supply response for perennial crops is undertaken for rubber in Sri Lanka, focusing on the uprooting‐replanting decision and disaggregating the typical “reduced‐form” supply response equation into several structural relationships. This approach is compared and contrasted with Dowling's analysis of supply response for rubber in Thailand, which is based upon a sophisticated reduce ...
DOI:
10.2307/1242185

22. Home-based enterprises in cities of developing countries

Author:
Strassmann, W.P.
Source:
Economic development and cultural change 1987 v.36 no.1 pp. 121-144
ISSN:
0013-0079
Subject:
Sri Lanka,   etc   ; household income; income distribution; developing countries; yields; home-based businesses; Zambia; Peru;     Show all 8 Subjects
DOI:
10.1086/451639

23. Observations on the mass migration of Bridled Terns Sterna anaethetus off the coast of Colombo

Author:
REX I. DE SILVA
Source:
Ibis 1987 v.129 no.1 pp. 88-92
ISSN:
0019-1019
Subject:
Sri Lanka,   etc   ; Sterna; annuals; coasts; sternum;     Show all 5 Subjects
Abstract:
... A mass mieration of Bridled Terns Sterna anaethetus has been observed periodically off the south western coast of Sri Lanka during the past several years (Hoffmann 1975, Phillips 1978) and it is now evident that the phenomenon is an annual occurrence A preliminary study was initiated in 1981 (De silva 1982) and the results encouraged the continuation of observations until late October 1984 Only th ...
DOI:
10.1111/j.1474-919X.1987.tb03162.x

24. The genus valleriola distant (hemiptera: leptopodidae) in australia, new caledonia and papua new guinea with notes on zoogeography1

Author:
John T. Polhemus; Dan A. Polhemus
Source:
Australian journal of entomology 1987 v.26 no.3 pp. 209-214
ISSN:
1326-6756
Subject:
Sri Lanka,   etc   ; Hemiptera; Afghanistan; Australia; Egypt; India; Iran; New Caledonia; Papua New Guinea; Sudan;     Show all 10 Subjects
Abstract:
... Valleriola Distant is the only leptopodid genus known from the tropical Pacific region. The species previously reported are V. wilsonae Drake from eastern Australia and V. assouanensis (Costa) from New Caledonia. The latter was misidentified, and is described herein as V. novacaledonica sp. n.; the revised range of V. assouanensis is from Egypt and Sudan through Iran and Afghanistan to India and S ...
DOI:
10.1111/j.1440-6055.1987.tb00288.x

25. The sister group of the paleotropical tribe argostemmateae: a redefined neotropical tribe hamelieae (rubiaceae, rubioideae)

Author:
BIRGITTA BREMER
Source:
Cladistics 1987 v.3 no.1 pp. 35-51
ISSN:
0748-3007
Subject:
Sri Lanka,   etc   ; Hamelia; corolla; estivation; tropics; India;     Show all 6 Subjects
Abstract:
... — The sister group of the monophyletic tribe Argostemmateae, including Argostemma and Neurocalyx, is not the tribe Hedyotideae, or a part of it, as earlier assumed, but the monophyletic tribe Hamelieae, here redefined. It comprises the genera Hamelia, Hoffmannia (here including Xerococcus), Deppea (here including Schenckia), Pinarophyllon, and Omiltemia. The two tribes Argostemmateae and Hamelie ...
DOI:
10.1111/j.1096-0031.1987.tb00495.x

26. An alternative development strategy for coconut smallholder sector in sri lanka

Author:
NIMAL A. FERNANDO; SUMITH de SILVA
Source:
CORD. Coconut research & development 1988 v.04 no.01 pp. 1-6
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; capital; coconuts; research;     Show all 4 Subjects
Abstract:
... This paper briefly outlines several important characteristics of the coconut sector in Sri Lanka and provides a theoretical rationale for state intervention in terms of a special smallholder development strategy in the coconut sector. It points out that the current geneml development strategy of the Ministry of Coconut Industries which relies heavily on provision of development subsidies for selec ...
DOI:
https://doi.org/10.37833/cord.v4i01.206

27. A policy perspective on coconut processing in the south pacific islands

Author:
Dan M. Etherington
Source:
CORD. Coconut research & development 1988 v.04 no.02 pp. 1-24
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; Cocos nucifera; Philippines; coconut meal; coconuts; disease control; energy; exports; fruits; income; industry; market development; markets; research projects; trees; vegetable oil; India; Indonesia; Thailand;     Show all 19 Subjects
Abstract:
... For many island nations of the South Pacific the coconut palm is the most important smallholder tree crop. Most attempts to introduce processing; beyond the copra stage have failed. At the same time there is a declining trend in copra prices. Unlike most other major coconut producing countries (Philippines, India, Indonesia, Sri Lanka, and Thailand), the South Pacific nations do not have significa ...
DOI:
https://doi.org/10.37833/cord.v4i02.213

28. A predevelopment mosquito survey in the Mahaweli Development Project area, Sri Lanka: immatures

Author:
Amerasinghe, F.P.; Munasingha, N.B.
Source:
Journal of medical entomology 1988 v.25 no.4 pp. 286-294
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; Diptera; developmental stages; disease vectors; insect pests; habitats; human diseases; population density;     Show all 8 Subjects
DOI:
10.1093/jmedent/25.4.286
PubMed:
2900338

29. A rapid method for the defluoridation of flouride-rich drinking waters at village level

Author:
Jinadasa, K.B.P.N.; Weerasooriya, S.W.R.; Dissanayake, C.B.
Source:
International journal of environmental studies 1988 v.31 no.4 pp. 305-312
ISSN:
0020-7233
Subject:
Sri Lanka,   etc   ; drinking water; water supply; fluorides; fluorosis; decontamination; rapid methods; clay; kaolinite; rural communities;     Show all 10 Subjects
DOI:
10.1080/00207238908710435

30. Coconut stem utilization in sri lanka

Author:
Ranjith Mahindapala
Source:
CORD. Coconut research & development 1989 v.05 no.01 pp. 6-20
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; research;     Show all 3 Subjects
Abstract:
... In the plantation agriculture in Sri Lanka, coconut occupies the highest area of nearly 420,000 ha. It is distributed in all 24 districts. The estate sector (8 ha or more) comprises 104,000 ha (24.7%) of the area while the balance, 316,000 ha (75.3%) is categorized as small holdings ...
DOI:
https://doi.org/10.37833/cord.v5i01.221

31. Integration of pasture, fodder and cattle in coconut small holdings

Author:
L V K Liyanage; H P S Jayasundera; D T Mathes; D N S Fernando
Source:
CORD. Coconut research & development 1989 v.05 no.02 pp. 14-21
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; adverse effects; body weight; cattle; coconut meal; coconuts; forage; mineral fertilizers; nitrogen; pastures; phosphorus; potassium; production costs; research;     Show all 14 Subjects
Abstract:
... A farming system was established in a 45 year old coconut plantation at Rathmalagara Estate, Madampe, in the North Western Province of Sri Lanka. The main objective of this study was to evaluate the performance of an integrated farming system in relation to coconut production and productivity of land. Results inclicate that there has been no adverse effect on coconut and copra production clue to t ...
DOI:
https://doi.org/10.37833/cord.v5i02.228

32. Selenite retention differences in soils of high and low gastric cancer risk area in Sri Lanka

Author:
Weerasooriya, S.V.R.; Bulumulla, S.B.; Bandara, S.A.T.; Jayasekara, M.U.
Source:
International journal of environmental studies 1989 v.33 no.1/2 pp. 111-116
ISSN:
0020-7233
Subject:
Sri Lanka,   etc   ; soil toxicity; selenium; gastric mucosa; carcinoma; human diseases; adsorption; desorption; physicochemical properties; soil analysis; epidemiology;     Show all 11 Subjects
DOI:
10.1080/00207238908710485

33. The batch carbonisation of coconut shell with waste heat recovery

Author:
G R Breag; H C Coote; A C Hollingdale
Source:
CORD. Coconut research & development 1989 v.05 no.02 pp. 42-48
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; carbonization; coconuts; desiccated coconut; equipment; manufacturing; prototypes; waste heat recovery;     Show all 8 Subjects
Abstract:
... Technology developed by ODNRI for waste heat recovery during carbonisation of coconut shell has been succesfully adopted by the desiccated coconut industry in Sri Lanka. The initial development and design of the unit has been described elsewhere (Breag et al, 1984) and also the broader issues of the technology in relation to the Sri Lankan coconut industry have been examined (Breag et al. 1985). I ...
DOI:
https://doi.org/10.37833/cord.v5i02.230

34. Ecomorphology and Biogeography of a Tropical Stream Fish Assemblage: Evolution of Assemblage Structure

Author:
Eric D. Wikramanayake
Source:
Ecology 1990 v.71 no.5 pp. 1756-1764
ISSN:
0012-9658
Subject:
Sri Lanka,   etc   ; biogeography; evolution; fauna; fish; interspecific competition; microhabitats; streams;     Show all 8 Subjects
Abstract:
... The wet—forest stream fishes of Sri Lanka are segregated in ecological and morphological space. Suites of selected morphological attributes of the fishes were correlated with microhabitat and feeding ecology. Previous studies have shown that these fishes partition resources with pronounced complementarities along niche axes, a pattern consistent with assemblages structured by interspecific competi ...
DOI:
10.2307/1937583

35. Genetic control of 2-propenyl and 3-butenyl glucosinolate synthesis in mustard

Author:
Love, H.K.; Rakow, G.; Raney, J.P.; Downey, R.K.
Source:
Canadian journal of plant science 1990 v.70 no.2 pp. 425-429
ISSN:
0008-4220
Subject:
Sri Lanka,   etc   ; Brassica juncea; seeds; glucosinolates; biosynthesis; alleles; plant breeding;     Show all 7 Subjects
DOI:
10.4141/cjps90-050

36. Oral vaccination of chickens against Newcastle disease with V4 vaccine delivered on processed rice grains

Author:
Jayawardane, G.W.L.; De Alwis, M.C.L.; Bandara, D.
Source:
Australian veterinary journal 1990 v.67 no.10 pp. 364-366
ISSN:
0005-0423
Subject:
Sri Lanka,   etc   ; chickens; Newcastle disease; oral vaccination; rice; antibody formation; hemagglutination inhibition test; live vaccines; Avian orthoavulavirus 1; mortality;     Show all 10 Subjects
DOI:
10.1111/j.1751-0813.1990.tb07405.x
PubMed:
2288540

37. Phylogenetic relationships and molecular evolution in uropeltid snakes (Serpentes: Uropeltidae): allozymes and albumin immunology

Author:
Source:
Biological journal of the Linnean Society 1990 v.40 no.3 pp. 293-320
ISSN:
0024-4066
Subject:
Sri Lanka,   etc   ; Serpentes; alleles; allozymes; biogeography; biotopes; effective population size; electrophoresis; genetic distance; genetic variation; heterozygosity; immunology; loci; lowlands; monophyly; outbreeding; paraphyly; serum albumin; snakes; India;     Show all 20 Subjects
Abstract:
... Multilocus electrophoretic methods and microcomplement fixation comparisons of serum albumin are used to assess phylogenetic relationships among species of uropeltid snakes, to infer aspects of their population biology and biogeography, and to evaluate their relationships to other primitive snakes (Henophidia). There is very good agreement between phylogenetic inferences derived from the electroph ...
DOI:
10.1111/j.1095-8312.1990.tb00541.x
PubMed:
32313304
PubMed Central:
PMC7161806

38. Antigenic similarity between the mosquito vectors of malaria and filariasis

Author:
Ramasamy, R.; Nadesalingam, P.; Ramasamy, M.S.
Source:
Journal of medical entomology 1991 v.28 no.6 pp. 760-762
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; Anopheles tessellatus; Culex quinquefasciatus; antigens; disease vectors; Plasmodium vivax; Wuchereria bancrofti;     Show all 7 Subjects
Abstract:
... Rabbit antisera were raised to the malaria vector Anopheles tessellatus, head-thorax, abdomen, and midgut preparations. Reactivity of the antisera with An. tessellatus and the filariasis vector, Culex quinquefasciatus, were examined by enzyme-linked immunosorbent assay (ELISA) and Western blots. Although many antigens were shared between the two species of mosquitoes, tissue- and species-specific ...
DOI:
10.1093/jmedent/28.6.760
PubMed:
1770509

39. Current status of coconut research in sri lanka

Author:
RANJITH MAHINDAPALA
Source:
CORD. Coconut research & development 1991 v.07 no.01 pp. 5-14
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; research;     Show all 3 Subjects
Abstract:
... Coconut occupies about 410,000 ha of land in Sri Lanka, and is the largest plantation crop. The most important coconut growing area is called the "Coconut triangle" which comprises most of the districts of Puttalam. Colombo and Gampaha. Together, they account for nearly 70 per cent of the coconut lands. There are about 700,000 coconut growers, the majority of which are small‑holders. About 70‑75 p ...
DOI:
https://doi.org/10.37833/cord.v7i01.244

40. Current status of research on the stem bleeding disease of coconut in india

Author:
KKN NAMBIAR; ROHINI IYER
Source:
CORD. Coconut research & development 1991 v.07 no.02 pp. 12-18
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; research; India;     Show all 4 Subjects
Abstract:
... Stem bleeding disease of coconut was reported from India in 1922 by Sundaraman. Earlier Petch (1906) had reported the disease from Sri Lanka. Now the disease is known to occur in many coconut growing countries (Ohler, 1984). ...
DOI:
https://doi.org/10.37833/cord.v7i02.250

41. On the proper denomination of Cabrita jerdonii Beddome, 1870 (Reptilia: Lacertidae)

Author:
Wolfgang Bischoff; Wolfgang Böhme
Source:
Amphibia-reptilia 1991 v.12 no.2 pp. 220-221
ISSN:
0173-5373
Subject:
Sri Lanka,   etc   ; Lacertidae; homonym; lizards; nomen novum; taxonomic revisions; India;     Show all 7 Subjects
Abstract:
... The lacertid genus Cabrita Gray, 1838 has recently been synonymized with Opal'sops M6n6tri6s, 1832 by Arnold (1989) because the two species of Cabrita differ from all members of the closely related Ophisops only in the possession of moveable eyelids, which is a symplesiomorphic characteristic. Furthermore, Arnold (op.cit.) believes that "the two species that constitute Cabrita are each more closel ...
DOI:
10.1163/156853891X00211

42. Production of coconut oiil directly from fresh coconut meat using the waste heat recovery technology: a "new oil process"

Author:
G. R. Breag; P. Drew; P. G. Joseph
Source:
CORD. Coconut research & development 1991 v.07 no.01 pp. 28-37
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; carbonization; charcoal; coconut meal; coconut oil; coconuts; human settlements; manufacturing; research; smoke; waste heat recovery;     Show all 11 Subjects
Abstract:
... In several, areas, in Sri Lanka the use of pits for making coconut shell charcoal is restricted or not permitted due to environmental damage or the proximity of human habitation. In addition approxima­tely 50% of the gross heat content of the shells is lost to the surroundings during the process. In view of the above, the Natural Resources Institute developed a coconut shell carbonization unit wit ...
DOI:
https://doi.org/10.37833/cord.v7i01.247

43. Survey of adult mosquitoes (Diptera: Culicidae) during irrigation development in the Mahaweli Project, Sri Lanka

Author:
Amerasinghe, F.P.; Ariyasena, T.G.
Source:
Journal of medical entomology 1991 v.28 no.3 pp. 387-393
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; Anopheles; Culex; Mansonia (Diptera); disease vectors; sampling; bait traps; light traps; humans; villages; human diseases; irrigated conditions;     Show all 12 Subjects
Abstract:
... A survey of adult mosquitoes was done during 1986-1987 in an area undergoing irrigation development in the Mahaweli Project of Sri Lanka. The study encompassed two 12-mo phases of settlement and irrigation, respectively. Diurnal human bait catches yielded 1,427 female mosquitoes in 27 species. Nocturnal collections (human bait, CDC light traps, indoor resting catches) produced a total of 30,491 fe ...
DOI:
10.1093/jmedent/28.3.387
PubMed:
1678784

44. Coconut genetic resources

Author:
M. K. NAIR
Source:
CORD. Coconut research & development 1992 v.08 no.01 pp. 8-17
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; Pliocene epoch; children; coasts; coconuts; domestication; face; fossils; germination; monkeys; research; India; Mexico; Panama; Polynesia; South East Asia;     Show all 16 Subjects
Abstract:
... It is presurned that the generic name, Cocos as well as the popular name coconut are derived from the spanish word ‘coco’ meaning ‘monkey face’ probably a reference to the three sears on the base of the shell resembling a monkey's face (Rosengarten, 1984). The origin of coconut was placed by Martius (1850) on the West Coast of Central America near the Isthmus of Panama. On the basis of evidences f ...
DOI:
https://doi.org/10.37833/cord.v8i01.255

45. Malaria transmission by Anopheles subpictus (Diptera: Culicidae) in a new irrigation project in Sri Lanka

Author:
Amerasinghe, P.H.; Amerasinghe, F.P.; Wirtz, R.A.; Indrajith, N.G.; Sompalal, W.; Pereira, L.R.; Rathnayake, A.M.S.
Source:
Journal of medical entomology 1992 v.29 no.4 pp. 577-581
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; Anopheles subpictus; disease transmission; irrigated conditions; malaria; Plasmodium falciparum;     Show all 6 Subjects
Abstract:
... Indoor resting Anopheles subpictus in a new irrigation scheme in Sri Lanka were investigated during 1989-1990 for malaria infection by dissection and ELISA, and human feeding rates by ELISA analysis of blood meals. Indoor resting abundance was 22.3 females per house per 15-min catch in April-June 1989, 2.2 in November-December 1989, and 7.5 in April-June 1990. ELISA-based malaria infection rates ( ...
DOI:
10.1093/jmedent/29.4.577
PubMed:
1495065

46. Method to estimate relative transmission efficiencies of Anopheles species (Diptera: Culicidae) in human malaria transmission

Author:
Mendis, C.; Herath, P.R.J.; Rajakaruna, J.; Weerasinghe, S.; Gamage-Mendis, A.C.; Mendis, K.N.; De Zoysa, A.P.K.
Source:
Journal of medical entomology 1992 v.29 no.2 pp. 188-196
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; mathematical models; disease transmission; Anopheles; malaria; biting rates;     Show all 6 Subjects
Abstract:
... A mathematical expression was derived to estimate the relative malaria transmission efficiency of an anopheline species with respect to a standard well-characterized species for which all vector parameters can be sufficiently determined. The method is particularly useful in situations where multiple anopheline species contribute to human malaria transmission and requires the estimation of the man- ...
DOI:
10.1093/jmedent/29.2.188
PubMed:
1495028

47. The Simuliidae (Diptera) of Sri Lanka. Descriptions of additional species of Simulium (Simulium), with a key for Sri Lankan species in the subgenus and a checklist for the country

Author:
Davies, D.M.; Gyorkos, H.
Source:
Canadian journal of zoology 1992 v.70 no.5 pp. 1029-1046
ISSN:
0008-4301
Subject:
Sri Lanka,   etc   ; anatomy and morphology; new species; Simulium;     Show all 4 Subjects
DOI:
10.1139/z92-145

48. Sir Lankan passion fruit mottle virus, a potyvirus infecting golden passion fruit in Sri Lanka

Author:
Dassanayake, E.M.; Hicks, R.G.T.
Source:
Annals of applied biology 1992 v.120 no.3 pp. 459-469
ISSN:
0003-4746
Subject:
Sri Lanka,   etc   ; Aphis craccivora; host range; disease vectors; Myzus persicae; Passiflora edulis f. flavicarpa; Potyvirus; Aphis spiraecola; viral morphology;     Show all 9 Subjects
DOI:
10.1111/j.1744-7348.1992.tb04906.x

49. Weed control understory weed management in coconut lands

Author:
L. V. K. LIYANAGE; M. DE. S. LIYANAGE
Source:
CORD. Coconut research & development 1992 v.08 no.01 pp. 49-56
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; annual weeds; canopy; coconuts; growth habit; research; soil water; solar radiation; understory; weed control;     Show all 10 Subjects
Abstract:
... Coconut (Cocos nucifera L.) is by far the most extensively cultivated plantation crop in Sri Lanka. It is essentially a small holder crop comprising about 86% of small. holdings and homesteads and the balance belonging to the estate sector. The growth habit of the palm and its canopy structure requires a wide, spacing between palms, which permits abundant sunlight to the understory. As a result, t ...
DOI:
https://doi.org/10.37833/cord.v8i01.258

50. Conservation farming as an alternative to shifting cultivation in Sri Lanka: an economic evaluation

Author:
Agalawtte, M.B.; Abeygunawardena, P.
Source:
Journal of sustainable agriculture 1993 v.4 no.2 pp. 65-79
ISSN:
1044-0046
Subject:
Sri Lanka,   etc   ; alternative farming; shifting cultivation; cost benefit analysis; profitability;     Show all 5 Subjects
DOI:
10.1300/J064v04n02_07

51. Feed resource base for scavenging village chickens in Sri Lanka

Author:
Gunaratne, S.P.; Chandrasiri, A.D.N.; Mangalika Hemalatha, W.A.P.; Roberts, J.A.
Source:
Tropical animal health and production 1993 v.25 no.4 pp. 249-257
ISSN:
0049-4747
Subject:
Sri Lanka,   etc   ; calcium; free range husbandry; kitchen waste; chicks; hatching; feed intake; proximate composition; feeding behavior; blood plasma; dietary minerals; hens; mortality; phosphorus;     Show all 14 Subjects
DOI:
10.1007/BF02250880
PubMed:
8109060

52. Geographical variation in acoustic signals of the planthopper, Nilaparvata bakeri (Muir), in Asia: species recognition and sexual selection

Author:
CLARIDGE, MICHAEL F.; MORGAN, JOHN C.
Source:
Biological journal of the Linnean Society 1993 v.48 no.3 pp. 267-281
ISSN:
0024-4066
Subject:
Sri Lanka,   etc   ; Leersia hexandra; Nilaparvata; assortative mating; biological speciation; courtship; females; geographical variation; hybrids; males; reproductive isolation; sexual selection; India; Indonesia; Philippines;     Show all 15 Subjects
Abstract:
... Populations of the planthopper .Nilaparvata bakeri (Muir) were sampled from the Philippines (Luzon), Indonesia (Bali), India (Bihar) and Sri Lanka (Central Province) from the grass Leersia hexandra (Schwartz), and cultured in Cardiff. Low intensity vibratory signals produced by males and females during mate location and courtship were recorded and analysed. Obvious differences were found between m ...
DOI:
10.1111/j.1095-8312.1993.tb00891.x

53. Interdisciplinary research towards management of non-timber forest resources in lowland rain forests of Sri Lanka

Author:
Gunatilleke, I.A.U.N.; Gunatilleke, C.V.S.; Abeygunawardena, P.
Source:
Economic botany 1993 v.47 no.3 pp. 282-290
ISSN:
0013-0001
Subject:
Sri Lanka,   etc   ; forest economics; economic analysis; nontimber forest products; tropical forests; forest management; forest resources;     Show all 7 Subjects
Abstract:
... Lowland and mid-elevational rainforests of Sri Lanka harbor a relict, endemic-rich flora which is also rich in timber and non-timber forest resources. These forests supply nearly half the total wood requirements of the country and are dwindling rapidly; management of the forests to conserve the biological richness and maintain environmental services is therefore a difficult proposition. This predi ...
DOI:
10.1007/BF02862295

54. Introduction to case studies from South Asia

Author:
Bawa, K.S.; Godoy, R.
Source:
Economic botany 1993 v.47 no.3 pp. 248-250
ISSN:
0013-0001
Subject:
Sri Lanka,   etc   ; nontimber forest products; tropical forests; economic analysis; forest resources; forest economics; harvesting; India;     Show all 8 Subjects
Abstract:
... Investigations of the effects of extraction of non-timber forest products have concentrated on Latin American forests, yet South Asian forests may provide new insights into this problem. The following five papers address issues relating to extraction of non-timber forest products in South Asia. These papers include an economic valuation of deciduous forests in India, case studies of use of forest ...
DOI:
10.1007/BF02862290

55. National Health Systems Throughout the World:Lessons for Health System Reform in the United States

Author:
MILTON I. ROEMER
Source:
American behavioral scientist 1993 v.36 no.6 pp. 694-708
ISSN:
0002-7642
Subject:
Sri Lanka,   etc   ; developing countries; entrepreneurship; health services; models; Germany; Great Britain; United States;     Show all 8 Subjects
Abstract:
... This article provides essential tools for reforming the U.S. health system. It describes the component elements of health systems and discusses the U.S. entrepreneurial health system. Several welfare-oriented examples are presented from which U.S. policymakers might draw, Germany being one case. Also explained are comprehensive health systems such as Great Britain's. The article also notes that ev ...
DOI:
10.1177/0002764293036006003

56. Occurrence, distribution, and pathogenicity of the cowpea root and stem rot pathogen, phytophthora vignae, in soils of Sri Lanka

Author:
Dilantha Fernando, W.G.; Linderman, R.G.
Source:
Plant Disease 1993 v.77 no.11 pp. 1158-1164
ISSN:
0191-2917
Subject:
Sri Lanka,   etc   ; cultivars; Vigna unguiculata; host range; suppressive soils; stems; fungal diseases of plants; Phytophthora vignae; virulence; disease resistance; strains; roots;     Show all 12 Subjects
DOI:
10.1094/PD-77-1158

57. Problems encountered in the community-based production of leaf concentrate as a supplement for pre-school children in Sri Lanka

Author:
Cox, D.N.; Rajasuriya, S.V.; Soysa, P.E.; Gladwin, J.; Ashworth, A.
Source:
International journal of food sciences and nutrition 1993 v.44 no.2 pp. 123-132
ISSN:
0963-7486
Subject:
Sri Lanka,   etc   ; leaf protein concentrate; food processing; community programs; dietary supplements; preschool children;     Show all 6 Subjects
DOI:
10.3109/09637489309017430

58. Role of non-timber forest products in the economy of peripheral communities of Knuckles National Wilderness area of Sri Lanka: a farming systems approach

Author:
Gunatilake, H.M.; Senaratne, D.M.A.H.; Abeygunawardena, P.
Source:
Economic botany 1993 v.47 no.3 pp. 275-281
ISSN:
0013-0001
Subject:
Sri Lanka,   etc   ; forest economics; economic analysis; forest reserves; nontimber forest products; tropical forests; forest management;     Show all 7 Subjects
Abstract:
... The Knuckles range of forests has been identified as a unique biological resource in Sri Lanka with much biodiversity. It is also important as a watershed which feeds the Mahaweli reservoir system. Having considered the present hazardous land-use practices such as cardamum production and shifting cultivation, the Knuckles range has been declared a national wilderness area. The Forest Department is ...
DOI:
10.1007/BF02862294

59. Site-specific cleavage and joining of single-stranded DNA by VirD2 protein of Agrobacterium tumefaciens Ti plasmids: analogy to bacterial conjugation

Author:
Lanka, E.,   et al.   ; Pansegrau, W.; Schoumacher, F.; Hohn, B.;     Show all 4 Authors
Source:
Proceedings of the National Academy of Sciences of the United States of America 1993 v.90 no.24 pp. 11538-11542
ISSN:
0027-8424
Subject:
proteins; Agrobacterium radiobacter; plasmid vectors; transfer DNA; nucleotide sequences
Abstract:
... As an early stage of plant transformation by Agrobacterium tumefaciens, the Ti plasmid is nicked at the border sequences that delimit the T-DNA. Cleavage results in covalent attachment of VirD2 to the 5' termini of the nicked strand by a process resembling initiation of DNA transfer that occurs in the donor cell during bacterial conjugation. We demonstrate that this cleavage can be reproduced in v ...
DOI:
10.1073/pnas.90.24.11538
PubMed:
8265585
PubMed Central:
PMC48019

60. Substitution between Goods and Leisure in a Developing Country

Author:
Harold Alderman; David E. Sahn
Source:
American journal of agricultural economics 1993 v.75 no.4 pp. 875-883
ISSN:
0002-9092
Subject:
Sri Lanka,   etc   ; Almost Ideal Demand System; developing countries; females; food consumption; leisure, recreation and tourism; males; products and commodities; rural areas;     Show all 9 Subjects
Abstract:
... The paper explores the substitutability between goods, female leisure, and male leisure. We find that goods and leisure are not separable. We then adapt the Almost Ideal Demand System (AIDS) to include leisure in the system in the same manner as commodities. The model is not sensitive to variations in the assumption of total time available for each individual's work and leisure. Results from Sri L ...
DOI:
10.2307/1243975

61. Taxonomy and biology of the supposedly lestobiotic ant genus Paedalgus (Hym.: Formicidae)

Author:
Bolton, B.; Belshaw, R.
Source:
Systematic entomology 1993 v.18 no.3 pp. 181-189
ISSN:
0307-6970
Subject:
Sri Lanka,   etc   ; anatomy and morphology; Formicidae; new species; Cote d'Ivoire;     Show all 5 Subjects
Abstract:
... The taxonomy and biology of the supposedly lestobiotic ant genus Paedalgus is reviewed. Ten species are recognized, from Sri Lanka and the Afrotropical region, of which six are described here as new: distinctus, octatus, pisinnus, rarus, robertsoni and saritus. The genus is defined and an identification key to species is provided. Evidence for and against a lestobiotic lifeway is discussed and wha ...
DOI:
10.1111/j.1365-3113.1993.tb00661.x

62. Biological activity of some coumarins from Sri Lankan Rutaceae

Author:
Gunatilaka, A.A.L.; Kingston, D.G.L.; Wijeratne, E.M.K.; Bandara, B.M.R.; Hofmann, G.A.; Johnson, R.K.
Source:
Journal of natural products 1994 v.57 no.4 pp. 518-520
ISSN:
0163-3864
Subject:
Sri Lanka,   etc   ; Rutaceae; cytotoxicity; medicinal plants; bioassays; antineoplastic agents; coumarins; chemical constituents of plants; molecular conformation;     Show all 9 Subjects
DOI:
10.1021/np50106a013
PubMed:
8021652

63. Frequency of Natural Out-Crossing in Partially Cleistogamous Pigeonpea Lines in Diverse Environments

Author:
K. B. Saxena; S. J. B. A. Jayasekera; H. P. Ariyaratne; R. P. Ariyanayagam; H. H. D. Fonseka
Source:
Crop science 1994 v.34 no.3 pp. 660-662
ISSN:
0011-183X
Subject:
Sri Lanka,   etc   ; cleistogamy; Cajanus cajan; outcrossing; flowers; environmental factors; mutants; plant morphology; genetic markers; India;     Show all 10 Subjects
Abstract:
... Natural out-crossing is the major cause of loss of varietal purity in pegeonpea [Cajanus cajan (L.) Millsp.]. The frequency of natural out-crossing of partially cleistogamous mutant lines, characterized by a modified keel and filamentous anthers, was studied at two locations in Sri Lanka and three locations in India. Indeterminate growth habit and normal floral morphology were used as dominant mar ...
DOI:
10.2135/cropsci1994.0011183X003400030011x

64. Genetic characterization of Colletotrichum gloesporioides isolates obtained from mango

Author:
Alahakoon, P.W.; Brown, A.E.; Sreenivasaprasad, S.
Source:
International journal of pest management 1994 v.40 no.2 pp. 225-229
ISSN:
0967-0874
Subject:
Sri Lanka,   etc   ; Mangifera indica; plant pathogenic fungi; Glomerella cingulata; genetic techniques and protocols; ribosomal DNA; mitochondrial DNA; restriction fragment length polymorphism; strains; host specificity;     Show all 10 Subjects
DOI:
10.1080/09670879409371887

65. Host range of Colletotrichum gloeosporioides on tropical fruit crops in Sri Lanka

Author:
Alahakoon, P.W.; Brown, A.E.
Source:
International journal of pest management 1994 v.40 no.1 pp. 23-26
ISSN:
0967-0874
Subject:
Sri Lanka,   etc   ; plant pathogenic fungi; Glomerella cingulata; host range; fruit crops; seedlings; new host records; Durio zibethinus; Garcinia; Syzygium jambos; Nephelium lappaceum; incidence; disease prevalence; fungal diseases of plants; disease surveys;     Show all 15 Subjects
DOI:
10.1080/09670879409371848

66. Methods to improve utilization of rice straw. II. Effects of different levels of feeding on intake and digestibility of untreated and urea ammonia treated rice straw

Author:
Badurdeen, A.L.; Ibrahim, M.N.M.; Schiere, J.B.
ISSN:
1976-5517
Subject:
Sri Lanka,   etc   ; calves; rice straw; urea; feeding level; digestibility; feed intake;     Show all 7 Subjects
DOI:
10.5713/ajas.1994.165

67. Natural cross-pollination in sesame (Sesamum indicum L.)

Author:
Pathirana, R.
Source:
Plant breeding 1994 v.112 no.2 pp. 167-170
ISSN:
0179-9541
Subject:
Sri Lanka,   etc   ; Sesamum indicum; cross pollination; outcrossing; plant breeding; genotype;     Show all 6 Subjects
DOI:
10.1111/j.1439-0523.1994.tb00665.x

68. Performance of small scale livestock/crop demonstration-cum-training farms in Sri Lanka

Author:
Jong, R. de; Kuruppu, L.G.; Jayawardena, Q.W.; Ibrahim, M.N.M.
ISSN:
1011-2367
Subject:
Sri Lanka,   etc   ; dairy cows; demonstration farms; biogas; farm income; production costs;     Show all 6 Subjects
DOI:
10.5713/ajas.1994.571

69. Population dynamics of anthropophilic mosquitoes during the northeast monsoon season in the malaria epidemic zone of Sri Lanka

Author:
Ramasamy, M.S.; Kulasekera, R.; Srikrishnaraj, K.A.; Ramasamy, R.
Source:
Medical and veterinary entomology 1994 v.8 no.3 pp. 265-274
ISSN:
0269-283X
Subject:
Sri Lanka,   etc   ; Anopheles; Culex; Aedes; Mansonia (Diptera); Armigeres; disease vectors; population density; wet season;     Show all 9 Subjects
DOI:
10.1111/j.1365-2915.1994.tb00508.x
PubMed:
7949318

70. Postirrigation breeding patterns of surface water mosquitoes in the Mahaweli Project, Sri Lanka, and comparisons with preceding developmental phases

Author:
Amerasinghe, F.P.; Indrajith, N.G.
Source:
Journal of medical entomology 1994 v.31 no.4 pp. 516-523
ISSN:
0022-2585
Subject:
Sri Lanka,   etc   ; rice; Anopheles; Mansonia (Diptera); Culex; breeding; irrigation; disease vectors;     Show all 8 Subjects
Abstract:
... A 2-yr (1988-1989) survey of mosquitoes breeding in surface water was done in an area of the Mahaweli Project of Sri Lanka that underwent irrigation development and human settlement during the preceding 3 yr. In total, 78,649 immatures of 42 species were collected during the survey. Species of medical importance in the area were Anopheles annularis van der Wulp, An. culicifacies Giles, An. jamesii ...
DOI:
10.1093/jmedent/31.4.516
PubMed:
7932596

71. Studies on terpenoids and steriods. 25. Complete 1H- and 13C-NMR spectral assignments of salaciquinone, a new 7-oxo-quinoemethide dinortriterpenoid

Author:
Tezuka, Y.; Kikuchi, T.; Dhanabalasingham, B.; Karunaratne, V.; Gunatilaka, A.A.L.
Source:
Journal of natural products 1994 v.57 no.2 pp. 270-276
ISSN:
0163-3864
Subject:
Sri Lanka,   etc   ; Celastraceae; triterpenoids; molecular conformation; spectral analysis; chemical constituents of plants; bark; roots;     Show all 8 Subjects
DOI:
10.1021/np50104a012

72. Thin layer chromatographic analysis of essential oils from Cinnamomum species

Author:
Sritharan, R.; Jacob, V.J.; Balasubramaniam, S.
Source:
Journal of herbs, spices & medicinal plants 1994 v.2 no.2 pp. 49-63
ISSN:
1049-6475
Subject:
Sri Lanka,   etc   ; wild plants; stems; essential oils; citronellal; chemical constituents of plants; bark; leaves; Cinnamomum verum;     Show all 9 Subjects
DOI:
10.1300/J044v02n02_07

73. With cap reforms and gatt: greater market access for coconut products?

Author:
Aurora Alarde Regalado
Source:
CORD. Coconut research & development 1994 v.10 no.02 pp. 59-64
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; Philippines; coconuts; exports; income; industry; market access; people; research; India; Indonesia; Malaysia; Vanuatu;     Show all 13 Subjects
Abstract:
... The coconut industry is undeniably an important feature in the economies of the Asia‑Pacific region. It is an important source of income and food. In Vanuatu, this industry contributes 41% to its total export earnings; 7.10% in the Philippines; and 8.91% in the Solomon Islands in 1992. This industry also provides sustenance to the people of Indonesia, Malaysia, India and Sri Lanka. Coconuts are ma ...
DOI:
https://doi.org/10.37833/cord.v10i02.286

74. The effects of selective logging on inbreeding in Shorea megistophylla (Dipterocarpaceae) from Sri Lanka

Author:
Murawski, D.A.; Gunatilleke, I.A.U.N.; Bawa, K.S.
Source:
Conservation biology 1994 v.8 no.4 pp. 997-1002
ISSN:
0888-8892
Subject:
Sri Lanka,   etc   ; Shorea; logging; progeny; outcrossing; apomixis; alleles; gene frequency; tropical rain forests; inbreeding depression;     Show all 10 Subjects
DOI:
10.1046/j.1523-1739.1994.08040997.x

75. An interdisciplinary research initiative towards sustainablemanagement of forest resources in lowland rain forests of Sri Lanka

Author:
Gunatilleke, I.A.U.N.; Gunatilleke, C.V.S.; Abeygunawardena, P.
Source:
Journal of sustainable forestry 1994 v.1 no.4 pp. 95-114
ISSN:
1054-9811
Subject:
Sri Lanka,   etc   ; forest management; rain forests; lowlands; biogeography; forest resources;     Show all 6 Subjects
DOI:
10.1300/J091v01n04_05

76. Chromosome number in Cynodon dactylon in relation to ecological conditions

Author:
Silva, P.H.A.U. de; Snaydon, R.W.
Source:
Annals of botany 1995 v.76 no.5 pp. 535-537
ISSN:
0305-7364
Subject:
Sri Lanka,   etc   ; Cynodon dactylon; chromosome number; habitats; climatic zones; geographical distribution; soil pH; genomics; population;     Show all 9 Subjects
Abstract:
... Populations of Cynodon dactylon (L.) Pers. were collected from three habitat types (roadsides, lawns and paddy-fields) within each of five climatic regions (arid, dry, intermediate, wet and hill country) in Sri Lanka. Further populations were collected from forests and grasslands in the hill country. Most populations contained only tetraploid plants (2n = 36), but populations from roadsides and la ...
DOI:
10.1006/anbo.1995.1129

77. Contrasts in the physical properties of three soils of an Alfisol catena in Sri Lanka

Author:
Mapa, R.B.; Pathmarajah, S.
Source:
Soil use and management 1995 v.11 no.2 pp. 90-93
ISSN:
0266-0032
Subject:
Sri Lanka,   etc   ; Alfisols; catenas; particle size distribution; bulk density; soil air; available water capacity; saturated hydraulic conductivity; land classification; land use planning; soil suitability; porosity;     Show all 12 Subjects
Abstract:
... The agricultural implications of differences in soil physical properties along an Alfisol catena were evaluated. The properties studied were steady infiltration rate, saturated hydraulic conductivity (Ks), available water capacity, bulk density, field air capacity and soil texture. The catena consisted of Rhodustalfs, Haplustalfs and Tropaqualfs. A significant increase in clay content downslope wa ...
DOI:
10.1111/j.1475-2743.1995.tb00502.x

78. Cyathocaline, an azafluorenone alkaloid from Cyathocalyx zeylanica

Author:
Wijeratne, E.M.K.; De Silva, L.B.; Kikuchi, T.; Tezuka, Y.; Gunatilaka, A.A.L.; Kingston, D.G.I.
Source:
Journal of natural products 1995 v.58 no.3 pp. 459-462
ISSN:
0163-3864
Subject:
Sri Lanka,   etc   ; Annonaceae; alkaloids; stems; bioassays; spectral analysis; chemical constituents of plants; bark; molecular conformation;     Show all 9 Subjects
DOI:
10.1021/np50117a020

79. Effect of intercropping coconut lands on soil water retention

Author:
Mapa, R.B.
Source:
Biological agriculture & horticulture 1995 v.12 no.2 pp. 173-183
ISSN:
0144-8765
Subject:
Sri Lanka,   etc   ; Cocos nucifera; Coffea canephora; Piper nigrum; Theobroma cacao; intercropping; soil water retention; water holding capacity; soil depth; bulk density; soil organic matter; sandy loam soils; macropores; available water capacity; field capacity; continuous cropping; porosity;     Show all 17 Subjects
DOI:
10.1080/01448765.1995.9754735

80. Evaluation of a layer diet formulated from non-conventional feedingstuffs

Author:
Ravindran, V.
Source:
British poultry science 1995 v.36 no.1 pp. 165-170
ISSN:
0007-1668
Subject:
Sri Lanka,   etc   ; small farms; feed conversion; egg shell thickness; poultry manure; liveweight gain; production costs; laying performance; coconut meal; feed intake; forage evaluation; hens; hen feeding; egg yolk color;     Show all 14 Subjects
Abstract:
... 1. A layer diet, the formulation of which was based on several non-conventional feedingstuffs, was evaluated at the research station and under small farm conditions in Sri Lanka. The new feeding stuffs included finger millet, rice polishings, rubber seed meal, cassava leaf meal, ipil ipil leaf meal and dried poultry manure. A commercial mash, that is normally used on the farm, served as the contro ...
DOI:
10.1080/00071669508417763
PubMed:
7614021

81. Genetic diversity in South Asian okra (Abelmoschus esculentus) germplasm collection

Author:
Bisht, I.S.; Mahajan, R.K.; Rana, R.S.
Source:
Annals of applied biology 1995 v.126 no.3 pp. 539-550
ISSN:
0003-4746
Subject:
Sri Lanka,   etc   ; Abelmoschus esculentus; germplasm; genetic variation; plant morphology; provenance; Bangladesh; India; Nepal;     Show all 9 Subjects
DOI:
10.1111/j.1744-7348.1995.tb05388.x

82. In vitro evaluation of fungicides against clove isolate of Cylindrocladium quinqueseptatum in Sri Lanka

Author:
Jayasinghe, C.K.; Wijesundera, R.L.C.
Source:
International journal of pest management 1995 v.41 no.4 pp. 219-223
ISSN:
0967-0874
Subject:
Hevea brasiliensis; viability; conidia; sclerotia; Calonectria quinqueseptata; fungicides; Syzygium aromaticum; spore germination; screening; mycelium
DOI:
10.1080/09670879509371953

83. Inhibition of Phytophthora vignae and stem and root rot of cowpea by soil bacteria

Author:
Fernando, W.G.D.; Linderman, R.G.
Source:
Biological agriculture & horticulture 1995 v.12 no.1 pp. 1-14
ISSN:
0144-8765
Subject:
Sri Lanka,   etc   ; fungal antagonists; suppressive soils; Vigna unguiculata; races; soil bacteria; stems; Phytophthora vignae; fungal diseases of plants; disease control; Brevibacterium linens; Bacillus thuringiensis; root rot; Bacillus pumilus; biological control;     Show all 15 Subjects
DOI:
10.1080/01448765.1995.9754719

84. Nitrogen fixation and beneficial effects of some grain legumes and green-manure crops on rice

Author:
Senaratne, R.; Ratnasinghe, D.S.
Source:
Biology and fertility of soils 1995 v.19 no.1 pp. 49-54
ISSN:
0178-2762
Subject:
Sri Lanka,   etc   ; Crotalaria juncea; Vigna unguiculata; nitrogen fixation; Cajanus cajan; nitrogen content; Vigna mungo; Oryza sativa; Vigna radiata; green manures; dry matter accumulation; crop yield; Sesbania sesban; Arachis hypogaea; crop rotation; stover;     Show all 16 Subjects
DOI:
10.1007/BF00336346

85. Nutritive value of guinea grass (Panicum maximum Jacq.) and urea supplemented rice straw for cattle

Author:
Peiris, H.; Ibrahim, M.N.M.
ISSN:
1011-2367
Subject:
Sri Lanka,   etc   ; grasses; in vitro digestibility; voluntary intake; chop length; cattle; Megathyrsus maximus; crude protein; urea; rice straw; crossbreds; ad libitum feeding; feeding preferences;     Show all 13 Subjects
DOI:
10.5713/ajas.1995.83

86. Releasing Rain Forest Succession: A Case Study in the Dicranopteris linearis Fernlands of Sri Lanka

Author:
Andrew L. Cohen; B.M.P. Singhakumara; P. Mark S. Ashton
Source:
Restoration ecology 1995 v.3 no.4 pp. 261-270
ISSN:
1061-2971
Subject:
Sri Lanka,   etc   ; Cyperaceae; Dicranopteris; biomass; case studies; disturbed soils; field experimentation; forest regeneration; forest succession; grasses; herbs; pioneer species; rain forests; seedlings; shrubs; site preparation; species diversity; trees; weeds;     Show all 19 Subjects
Abstract:
... Throughout tropical moist climates, Dicranopteris linearis fernlands can develop as a result of rain forest clearance followed by frequent burning. In Sri Lanka, D. linearis fern‐lands are capable of suppressing the regeneration of rain forest. Field experiments were conducted at Sinharaja Man and Biosphere Reserve, a rain forest where fernlands occupy substantial areas of the reserve boundary. ...
DOI:
10.1111/j.1526-100X.1995.tb00093.x

87. Some relationships associated with the brown fibre industry of sri lanka

Author:
S. B. Ratnayake
Source:
CORD. Coconut research & development 1995 v.11 no.01 pp. 19-23
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; annuals; coconuts; cropping systems; drought; exports; hulls; research; textile industry;     Show all 9 Subjects
Abstract:
... Export onented brownfibre industry of Sn Lanka has been sustained during the last two decades with periodic fluctuations in the annual voluntes, showing a nett decline towards later years. The level of export volume in the past years show a strong correlation with the number of drought days in the coconut area during the particular year. The increased exportscan be expected to result in withdrawal ...
DOI:
https://doi.org/10.37833/cord.v11i01.290

88. Special issue on tea

Author:
Yamanishi, T. (ed.)
Source:
Food reviews international 1995 v.11 no.3 pp. 371-541
ISSN:
8755-9129
Subject:
Sri Lanka,   etc   ; botany; food composition; odors; beverages; food storage; crop production; flavor; black tea; chemical composition; green tea; tillage; food grades; nutritive value; food processing; India; Indonesia; Russia; Japan; China; Kenya;     Show all 21 Subjects
DOI:
10.1080/87559129509541049

89. Study of natural rotavirus infection in buffalo calves in Sri Lanka

Author:
Sunil-Chandra, N.P.; Mahalingam, S.
Source:
Tropical animal health and production 1995 v.27 no.4 pp. 221-224
ISSN:
0049-4747
Subject:
Sri Lanka,   etc   ; buffaloes; calves; Rotavirus; maternal immunity; colostrum;     Show all 6 Subjects
DOI:
10.1007/BF02250695
PubMed:
8966763

90. The distribution, importance, biology and control, of chromolaena odorata (l.) k.& r.a major weed species of coconut plantation in sri lanka

Author:
T.G.L.G. Gunasekara
Source:
CORD. Coconut research & development 1995 v.11 no.02 pp. 33-38
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; Chromolaena odorata; coconuts; habitats; research; weeds; Africa; Asia;     Show all 8 Subjects
Abstract:
... Chromolaena odorata (1.) K. & R. is a tropical peren­nial weed species qf the Asteraceae family that has be­come a serious problem in coconut plantations in Sri Lanka and in the tropics of Asia and Africa. The history of distribution, habitat and economic importance is summarized The botanical features and seed biology of this species are presented in this review Finally in­formation on the contro ...
DOI:
https://doi.org/10.37833/cord.v11i02.294

91. An economic impact assessment of the proposed conservation program on peripheral communities in the Knuckles Forest Range of Sri Lanka

Author:
Gunatilake, H.M.
Source:
Journal of sustainable forestry 1995 v.3 no.1 pp. 1-14
ISSN:
1054-9811
Subject:
Sri Lanka,   etc   ; forests; natural resource management; economic impact; villages; forest resources; income;     Show all 7 Subjects
DOI:
10.1300/J091v03n01_01

92. Coconut fibre: a biodegradable soil erosion control

Author:
Mapa, R.B.
Source:
Biological agriculture & horticulture 1996 v.13 no.2 pp. 149-160
ISSN:
0144-8765
Subject:
Sri Lanka,   etc   ; soil temperature; green manures; carbon; Gliricidia sepium; nitrogen content; Ultisols; losses from soil; yield components; runoff; Glycine (Fabaceae); coir; water conservation; soil water content; erosion control; mixtures; mulches; diurnal variation; carbon nitrogen ratio; latex;     Show all 20 Subjects
DOI:
10.1080/01448765.1996.9754774

93. Development of the major triterpenoids and oil in the fruit and seeds of neem (Azadirachta indica)

Author:
Johnson, S.; Morgan, E.D.; Peiris, C.N.
Source:
Annals of botany 1996 v.78 no.3 pp. 383-388
ISSN:
0305-7364
Subject:
Sri Lanka,   etc   ; azadirachtin; seeds; Azadirachta indica; developmental stages; seed oils; seasonal variation; chemical constituents of plants; fruiting;     Show all 9 Subjects
Abstract:
... In order to learn the best time for harvesting Neem (Azadirachta indica) seeds, the amount of the five major triterpenoids, together with the oil content have been determined throughout a fruiting season in six selected trees in Sri Lanka. The triterpenoid content and the relative proportions of the major compounds changed little from the hard green fruit stage to mature seeds, while the oil conte ...
DOI:
10.1006/anbo.1996.0133

94. Effect of fenthion treatment on larval densities of insecticide-resistant Culex quinquefasciatus in an urban area of Sri Lanka

Author:
Peiris, H.T.R.; Hemingway, J.
Source:
Medical and veterinary entomology 1996 v.10 no.3 pp. 283-287
ISSN:
0269-283X
Subject:
Sri Lanka,   etc   ; Culex quinquefasciatus; larvae; fenthion; chemical control; vector control; population density; insecticide resistance; urban areas; Bancroftian filariasis; breeding sites;     Show all 11 Subjects
Abstract:
... In Sri Lanka the national Anti-Filaria Campaign (AFC) has routinely employed fenthion since 1974 for larvicidal control of Culex quinquefasciatus, the vector of Bancroftian filariasis in urban areas, where this mosquito breeds prolifically in polluted waters. During 1994 the efficacy of AFC fenthion treatment against organophosphate-resistant Cx quinquefasciatus was investigated at Dehiwela, near ...
DOI:
10.1111/j.1365-2915.1996.tb00744.x
PubMed:
8887341

95. Interpretation of the behaviour of agrowell systems in Sri Lanka using radial flow models

Author:
Source:
Hydrological sciences journal 1996 v.41 no.6 pp. 825-835
ISSN:
0262-6667
Subject:
Sri Lanka,   etc   ; dry season; farming systems; irrigation; models; trees; water table;     Show all 7 Subjects
Abstract:
... This paper describes a study of the use of large diameter “agrowells” used for irrigation in Sri Lanka. Detailed field information for a single location is presented and a numerical radial flow model was used to interpret the field response. Initially the model was used to represent a pumping test in which the pumping and subsequent recovery were monitored. It was then used to investigate the oper ...
DOI:
10.1080/02626669609491553

96. King coconut

Author:
Nandanie D. Ediriweera Ph.D.
Source:
CORD. Coconut research & development 1996 v.12 no.02 pp. 32-34
ISSN:
2721-8856
Subject:
Sri Lanka,   etc   ; coconuts; color; endosperm; exocarp; liquids; mesocarp; pulp; research; taste; wines; Indonesia;     Show all 12 Subjects
Abstract:
... The king coconut (Thambili) which is characterized by its bright orange colour is said to have originated in Sri Lanka and is tertned cocos nucifera var. Aurantiaca. The diagnostic characters of varieties are mostly nut size, colour of epicarp, mesocarp and thickness of endosperm. Marco Polo, who passed through Sumatra more than seven hundred years ago described the coconut as containing an edible ...
DOI:
https://doi.org/10.37833/cord.v12i02.304

97. Nontimber forest product gathering in Ritigala forest (Sri Lanka): household strategies and community differentiation

Author:
Wickramasinghe, A.; Perez, M.R.; Blockhus, J.M.
Source:
Human ecology 1996 v.24 no.4 pp. 493-519
ISSN:
0300-7839
Subject:
Sri Lanka,   etc   ; forest products; household income; rural areas; forest resources; models; socioeconomics;     Show all 7 Subjects
DOI:
10.1007/BF02168864

98. Pottery, progress, and structural adjustments in a Sri Lankan Village

Author:
Winslow, D.
Source:
Economic development and cultural change 1996 v.44 no.4 pp. 701-733
ISSN:
0013-0079
Subject:
Sri Lanka,   etc   ; ceramics; handicrafts; small businesses; quality of life; villages; economic development; marketing cooperatives;     Show all 8 Subjects
DOI:
10.1086/452242

99. Replacement of maize with sweet potato (Ipomoea batatas L.) tuber meal in broiler diets

Author:
Ravindran, V.; Sivakanesan, R.
Source:
British poultry science 1996 v.37 no.1 pp. 95-103
ISSN:
0007-1668
Subject:
Sri Lanka,   etc   ; pancreas; dietary minerals; heart; broiler chickens; energy content; liveweight gain; crude protein; amino acids; antinutritional factors; spleen; palatability; digestible protein; weight; calcium; corn; feed intake; sweet potato flour; mortality; dietary protein; in vitro digestibility; liver; metabolizable energy;     Show all 23 Subjects
Abstract:
... 1. The nutrient composition of sweet potato tuber meal (SPM) was similar to that of maize, with the exceptions of crude protein and calcium. The crude protein content was lower (62 v 91 g/kg) and the calcium content was higher (1 .9 v 0.1 g/kg) in SPM. The amino acid composition, in general, favoured SPM. 2. Trpsin inhibitor activity, and the contents of oxalate and phytate-phosphorus in SPM were ...
DOI:
10.1080/00071669608417840
PubMed:
8833531

100. The effect of food subsidies on labor supply in Sri Lanka

Author:
Sahn, D.E.; Alderman, H.
Source:
Economic development and cultural change 1996 v.45 no.1 pp. 125-145
ISSN:
0013-0079
Subject:
Sri Lanka,   etc   ; rice; men; women; urban areas; probability analysis; labor market; food aid; subsidies; rural areas; decision making;     Show all 11 Subjects
DOI:
10.1086/452260