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1. Correlation of Phosphorus Soil Test Values With Rice Yields in Thailand

Author:
Ying Vajragupta; L. E. Haley; S. W. Melsted
Source:
Soil Science Society of America journal 1963 v.27 no.4 pp. 395-397
ISSN:
0361-5995
Subject:
fertilizer rates; grain yield; phosphorus; phosphorus fertilizers; rice; rice soils; soil test values; Thailand
Abstract:
... The Bray P-2 soil test was applied to Thailand rice soils, and the values obtained were correlated with rice yields according to the expression log (A — y) = log A — c₁b₁ — c log x. The calculated and obtained yields of rice for the various soil test values and phosphorus fertilizer rates are reported. Comparisons of the obtained and calculated yields show that the Bray P-2 soil test values correl ...
DOI:
10.2136/sssaj1963.03615995002700040014x

2. Species Diversities of Herpetofaunal Samples From Similar Microhabitats at Two Tropical Sites

Author:
W. Ronald Heyer; Keith A. Berven
Source:
Ecology 1973 v.54 no.3 pp. 642-645
ISSN:
0012-9658
Subject:
dry forests; frogs; lizards; microhabitats; species diversity; trees; Ecuador; Thailand
Abstract:
... Amphibians and reptiles were collected from tree buttresses in two different regions to determine whether within—habitat species diversity differences were evident. Using the method suggested by Pielou (1966), the average species diversity per individual was H' = 1.92 plus or minus .47 for the collection of amphibians and reptiles taken from tree buttresses in a tropical dry forest formation in Th ...
DOI:
10.2307/1935353

3. Niche Measurements of Frog Larvae from a Seasonal Tropical Location in Thailand

Author:
W. Ronald Heyer
Source:
Ecology 1974 v.55 no.3 pp. 651-656
ISSN:
0012-9658
Subject:
Anura; frogs; larvae; Thailand
Abstract:
... Niche parameters of breadth and overlap were calculated on a collection of frog larvae made in 1969 in a seasonal tropical location in Thailand to determine what adaptive strategy characterizes seasonal tropical anurans. Calculation of values of niche breadth and overlap show that space is much more important than food in niche partitioning. ...
DOI:
10.2307/1935156

4. Response by Flooded Rice to Phosphate Rocks Varying in Citrate Solubility

Author:
O. P. Engelstad; Aroon Jugsujinda; S. K. De Datta
Source:
Soil Science Society of America journal 1974 v.38 no.3 pp. 524-529
ISSN:
0361-5995
Subject:
Oryza sativa; citrates; greenhouses; prices; rice; rock phosphate; rocks; solubility; triple superphosphate; Thailand
Abstract:
... Studies were conducted in the greenhouse and in the field to evaluate several phosphate rocks for flooded rice (Oryza sativa L.). A close relationship was found to exist between first-crop yield response to applied P and citrate solubility in a series of phosphate rocks representing the theoretical range in this parameter. Greenhouse (TVA) and field data (Thailand) showed quite similar results in ...
DOI:
10.2136/sssaj1974.03615995003800030039x

5. Imperfect Competition in a Vertical Market Network: The Case of Rubber in Thailand

Author:
Laurence D. Stifel
Source:
American journal of agricultural economics 1975 v.57 no.4 pp. 631-640
ISSN:
0002-9092
Subject:
agricultural economics; imperfect competition; issues and policy; markets; models; monopsony; profits and margins; rubber; Thailand
Abstract:
... The efficiency of the sheet rubber marketing system in Thailand is analyzed in the framework of the structure‐conduct‐performance model from the field of industrial organization. Market performance is evaluated by the degree of monopsony profits and progressiveness. Examination of the multiple relationships at the three principal levels of the vertical network indicates that the system does not fi ...
DOI:
10.2307/1238881

6. Translocation of Iron In Acid Sulfate Soils: I. Soil Morphology, and the Chemistry and Mineralogy of Iron in a Chronosequence of Acid Sulfate Soils

Author:
N. van Breemen; K. Harmsen
Source:
Soil Science Society of America journal 1975 v.39 no.6 pp. 1140-1148
ISSN:
0361-5995
Subject:
B horizons; C horizons; X-radiation; acid sulfate soils; acidification; chronosequences; drainage; goethite; hematite; hydrolysis; iron; jarosite; laboratory experimentation; organic matter; oxidation; pyrite; soil analysis; Thailand
Abstract:
... In periodically flooded acid sulfate soils from Thailand various iron compounds are confined to distinct soil horizons. The unmottled substratum, which starts at several decimeters below the surface in the (youngest) mangrove and stage and at 2 m in well-developed soils, invariably contains between 2 and 5% pyrite. Drainage of the mangrove mud is followed by pyrite oxidation which results in acidi ...
DOI:
10.2136/sssaj1975.03615995003900060033x

7. Translocation of Iron In Acid Sulfate Soils: II. Production and Diffusion of Dissolved Ferrous Iron

Author:
K. Harmsen; N. van Breemen
Source:
Soil Science Society of America journal 1975 v.39 no.6 pp. 1148-1153
ISSN:
0361-5995
Subject:
B horizons; C horizons; acid sulfate soils; dry season; ferric oxide; iron; jarosite; mass flow; mathematical models; oxidation; pyrite; soil solution; submergence; Thailand
Abstract:
... Field and laboratory data on one acid sulfate soil are used to compute the concentration of dissolved Fe²⁺ with depth and time by means of a mathematical model that considers simultaneous production and diffusion of aqueous Fe²⁺ during submergence. Calculated ferrous iron concentrations compare well with concentrations measured in the course of 175 days at six depths down to 150 cm below the soil ...
DOI:
10.2136/sssaj1975.03615995003900060034x

8. Organization of Contiguous Communities of Amphibians and Reptiles in Thailand

Author:
Robert F. Inger; Robert K. Colwell
Source:
Ecological monographs 1977 v.47 no.3 pp. 229-253
ISSN:
0012-9615
Subject:
Dipterocarpaceae; agricultural land; amphibians; anthropogenic activities; broadleaved evergreens; climate; deciduous forests; evaporation; evergreen forests; herpetofauna; microhabitats; natural history; reptiles; species richness; temperature; vegetation structure; Thailand
Abstract:
... In adjacent areas of broadleaf evergreen forest, deciduous dipterocarp forest, and agricultural land in northeastern Thailand, >4,000 individuals of 105 species of reptiles and amphibians were systematically collected. The position of capture of each individual was recorded in terms of a complex microhabitat code. The 3 environments differ substantially in pattern of human disturbance, in vegetati ...
DOI:
10.2307/1942516

9. A Model for Evaluating the Effects of Thai Government Taxation of Rice Exports on Trade and Welfare

Author:
Chung Ming Wong
Source:
American journal of agricultural economics 1978 v.60 no.1 pp. 65-73
ISSN:
0002-9092
Subject:
adverse effects; agricultural economics; crop production; econometric models; equations; exports; farmers; international trade; paddies; rice; simulation models; taxes; welfare economics; world markets; Thailand
Abstract:
... The implications of Thai government taxation of rice exports through the export premium on trade and welfare are examined by means of a dynamic simultaneous equation model which allows for interactions between the rice production, consumption, and export sectors. Although the export premium may have generated a net welfare gain for Thailand over the 1961–70 period, owing to the highly imperfect na ...
DOI:
10.2307/1240162

10. Mitigating the Effects of Multicollinearity Using Exact and Stochastic Restrictions: The Case of an Aggregate Agricultural Production Function in Thailand

Author:
Ron C. Mittelhammer; Douglas L. Young; Damrongsak Tasanasanta; John T. Donnelly
Source:
American journal of agricultural economics 1980 v.62 no.2 pp. 199-210
ISSN:
0002-9092
Subject:
agricultural economics; least squares; models; production functions; risk; Thailand
Abstract:
... Ordinary least squares, exactly restricted OLS, stochastically restricted OLS (mixed estimation), and principal components regression each were used to estimate an aggregate agricultural production function for Thailand for which data were highly multicollinear. Pretest considerations, incorporating alternative risk measures, were addressed in detail for purposes of model evaluation. The final mix ...
DOI:
10.2307/1239685

11. Studies on the parasite fauna of Thailand. II. Three nematode species of the genus Orientostrongylus Durette-Desset, 1970

Author:
Ohbayashi, M.; Kamiya, M.
Source:
Japanese journal of veterinary research 1980 v.28 no.1-2 pp. 7-11
ISSN:
0047-1917
Subject:
Nematoda; fauna; new species; parasites; veterinary medicine; Thailand
Abstract:
... Orientostrongylus spp. (including 2 new species), descriptions and illustrations ...

12. Colony Defense Strategies of the Honeybees in Thailand

Author:
Thomas D. Seeley; Robin Hadlock Seeley; Pongthep Akratanakul
Source:
Ecological monographs 1982 v.52 no.1 pp. 43-63
ISSN:
0012-9615
Subject:
Apis cerana; Apis dorsata; Apis florea; Oecophylla smaragdina; Primates; birds; bites and stings; branches; caves; colony defense; evolution; forest trees; nesting; nesting sites; nests; physiology; polyethism; predation; predators; stinging; vegetation; wasps; worker honey bees; Thailand
Abstract:
... The colony defense strategies of the three honeybee species in Thailand were studied to examine the influence of predation on tropical honeybee societies. Each species focuses its defenses upon different stages in the predation sequence of detection—approach—consumption. This radiation in defense strategies apparently reflects each species' preadaptation by worker size (small, medium—sized, or lar ...
DOI:
10.2307/2937344

13. Hybridization of Anopheles minimus and Anopheles aconitus (Diptera: Culicidae) in Thailand

Author:
Sucharit, S.; Choochote, W.
Source:
Journal of medical entomology 1982 v.19 no.3 pp. 290-292
ISSN:
0022-2585
Subject:
malaria; Thailand
Abstract:
... Anopheles minimus and A. aconitus successfully hybridized in laboratory experiments, vectors of malaria in Thailand ...
DOI:
10.1093/jmedent/19.3.290
PubMed:
7120308

14. Notes sur les Listrophoridae (Acari : Astigmata). II. Description d'especes insuffisamment connues et de deux especes nouvelles

Author:
Fain, A.
Source:
Acarologia 1982 v.22 no.4 pp. 415-426
ISSN:
0044-586X
Subject:
Romania; Asia; Japan; Suriname; Netherlands; Malaysia; Thailand; Peru; German Federal Republic
Abstract:
... 11 species of Listrophoridae, all described except Afrolistrophorus congoicola ...

15. Dispersal and flight range studies on Mansonia annulata, Ma. indiana, and Ma. uniformis (Diptera: Culicidae) in southern Thailand

Author:
Gass, R.F.; Deesin, T.; Sucharit, S.; Surathin, K.; Vutikes, S.
Source:
Journal of medical entomology 1983 v.20 no.3 pp. 288-293
ISSN:
0022-2585
Subject:
Nematoda; filariasis; Thailand
Abstract:
... Mansonia mosquitoes (vectors of Malayan filariasis), dispersal and flight range studies associated with host-seeking flight activities in southern Thailand ...
DOI:
10.1093/jmedent/20.3.288
PubMed:
6135807

16. Farmers' Subjective Probabilities in Northern Thailand: An Elicitation Analysis

Author:
William Grisley; Earl D. Kellogg
Source:
American journal of agricultural economics 1983 v.65 no.1 pp. 74-82
ISSN:
0002-9092
Subject:
agricultural economics; crop production; decision making; farmers; farmers' attitudes; harvesting; income; prices; risk; Thailand
Abstract:
... The ability of agricultural decision makers to formulate logical expectations about the outcome of risky events in crop production and marketing is investigated. Measures of Northern Thailand farmers' perceptions of yield, price, and net income are attempted using an elicitation approach which includes a significant monetary reward. This approach is found to be feasible. The expectations derived a ...
DOI:
10.2307/1240339

17. Iron Oxides in Petroferric Materials

Author:
I. J. Ibanga; S. W. Buol; S. B. Weed; L. H. Bowen
Source:
Soil Science Society of America journal 1983 v.47 no.6 pp. 1240-1246
ISSN:
0361-5995
Subject:
aluminum; aluminum oxide; boiling; color; crystal structure; goethite; hematite; iron; lepidocrocite; particle size; sodium hydroxide; soil; Australia; Bolivia; Brazil; Nigeria; Thailand; United States
Abstract:
... Samples of petroferric materials with a very wide range of chemical and morphological characteristics were obtained from Australia, Bolivia, Brazil, Nigeria, Thailand, and the USA. A prominent feature of all samples is a high content of Fe and/or Al oxides, relative to other constituents. Free Fe oxide is present mainly as goethite or hematite with very small amounts of lepidocrocite in some sampl ...
DOI:
10.2136/sssaj1983.03615995004700060035x

18. Notes on the genus Miyatrombicula (Acari: Prostigmata: Trombiculidae), with description of a new species from Thailand

Author:
Tanskul, P.L.; Nadchatram, M.
Source:
Journal of medical entomology 1983 v.20 no.6 pp. 597-600
ISSN:
0022-2585
Subject:
Eutrombicula; Rattus rattus; new species; Thailand
Abstract:
... The genus Miyatrombicula is reviewed and a new species, M. benensoni, ex Rattus rattus from Thailand is described and illustrated. The subgenera Paramiyacula and Miyacarus treated as synonyms of Miyatrombicula. Eutrombicula (Eutrombicula) rixoli is transferred to Miyatrombicula. A table of all known species in the genus is given. The discovery of the new species constitutes the first record of thi ...
DOI:
10.1093/jmedent/20.6.597

19. A checklist of ticks of Thailand (Acari: Metastigmata: Ixodoidea)

Author:
Tanskul, P.L.; Stark, H.E.; Inlao, I.
Source:
Journal of medical entomology 1983 v.20 no.3 pp. 330-341
ISSN:
0022-2585
Subject:
Rhipicephalus microplus; Rhipicephalus sanguineus; Thailand
Abstract:
... Ixodoidea, checklist of all ticks known to occur in Thailand (10 genera, 53 species), new host records, correlations with previous records, host list, geographic distribution, map, and repositories of specimens ...
DOI:
10.1093/jmedent/20.3.330
PubMed:
6876093

20. Prerecruit mortality in Gulf of Thailand shrimp stocks

Author:
Bayley, P.B.; Pauly, D.
Source:
Transactions of the American Fisheries Society 1984 v.113 no.3 pp. 403-406
ISSN:
0002-8487
Subject:
marine environment; Thailand
DOI:
10.1577/1548-8659(1984)113<403:PMIGOT>2.0.CO;2

21. Habitat and zonation patterns of Littoraria species (Gastropoda: Littorinidae) in Indo-Pacific mangrove forests

Author:
REID, DAVID G.
Source:
Biological journal of the Linnean Society 1985 v.26 no.1 pp. 39-68
ISSN:
0024-4066
Subject:
Littorinidae; bark; habitats; leaves; mangrove forests; sediments; trees; Australia; Hawaii; Malaysia; Thailand
Abstract:
... The zonation of 15 species of Littoraria in the scabra group is described, using a transect method, at 13 mangrove localities in Australia, Thailand, Malaysia and Hawaii. At these localities the littorinids occurred only on trees, and showed both vertical and horizontal patterns of zonation, with broad overlaps between co-occurring species. It is suggested that vertical distribution is determined ...
DOI:
10.1111/j.1095-8312.1985.tb01551.x

22. Consumer Demand for Rice Grain Quality and Returns to Research for Quality Improvement in Southeast Asia

Author:
Laurian J. Unnevehr
Source:
American journal of agricultural economics 1986 v.68 no.3 pp. 634-641
ISSN:
0002-9092
Subject:
Oryza sativa; agricultural economics; consumer demand; grain quality; plant breeding; prices; rice; Indonesia; Philippines; Thailand
Abstract:
... Abundant world rice supply has led to renewed interest in improving grain quality of modem rice varieties. Implicit prices of grain characteristics are estimated for Thailand, Indonesia, and the Philippines. These prices are used to evaluate rice‐breeding goals and to estimate returns to research for quality improvement. Results indicate that the past focus on physical quality improvement was appr ...
DOI:
10.2307/1241547

23. Development and survival of anopheline immatures (Diptera: Culicidae) in rice fields in northern Thailand

Author:
Mogi, M.; Okazawa, T.; Miyagi, I.; Sucharit, S.; Tumrasvin, W.; Deesin, T.; Khamboonruang, C.
Source:
Journal of medical entomology 1986 v.23 no.3 pp. 244-250
ISSN:
0022-2585
Subject:
Anopheles; larvae; pupae; mortality; age structure; rice; fields; biological control; predators; Thailand
DOI:
10.1093/jmedent/23.3.244
PubMed:
3735328

24. 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:
agricultural economics; equations; green infrastructure; perennials; planting; rubber; Sri Lanka; Thailand
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

25. Land Ownership Security and Farm Investment in Thailand

Author:
Gershon Feder; Tongroj Onchan
Source:
American journal of agricultural economics 1987 v.69 no.2 pp. 311-320
ISSN:
0002-9092
Subject:
capital; credit; econometrics; farms; land ownership; markets; Thailand
Abstract:
... The article discusses the impact of land ownership security on farm investment and land improvements. Ownership security enhances capital formation by providing better incentives and improved access to credit. Data from three provinces in Thailand are used to support theoretical propositions and estimate the impact of ownership security. Econometric analysis shows that in two provinces, ownership ...
DOI:
10.2307/1242281

26. Reduction and Oxidation of Acid Sulfate Soils of Thailand

Author:
C. Charoenchamratcheep; C. J. Smith; S. Satawathananont; W. H. Patrick
Source:
Soil Science Society of America journal 1987 v.51 no.3 pp. 630-634
ISSN:
0361-5995
Subject:
acid sulfate soils; acidity; aluminum; anaerobic conditions; calcium; iron; magnesium; manganese; oxidation; silicon; solubility; Thailand
Abstract:
... Changes in pH, oxidation potential (Eh), and the solubility of S, Al, Ca, Mg, Fe, Mn, and Si were measured in four acid sulfate soils of Thailand following reduction and subsequent oxidation. Reduced S species accumulated under anaerobic conditions, but oxidized rapidly when the systems were aerated. The SO₄ concentration in solution increased as the Eh of the soil suspensions increased and pH dec ...
DOI:
10.2136/sssaj1987.03615995005100030014x

27. Risk‐Taking Preferences of Farmers in Northern Thailand: Measurements and Implications

Author:
William Grisley; Earl Kellog
Source:
Agricultural economics 1987 v.1 no.2 pp. 127-142
ISSN:
0169-5150
Subject:
assets; farm size; farmers; grain yield; multiple cropping; prices; regression analysis; relative risk; rice; Thailand
Abstract:
... Risk‐taking preferences were elicited from small semi‐commercial farmers in Northern Thailand using an experimental procedure that included real monetary payoffs of meaningful magnitudes. A total of five sets of lotteries with increasing payoffs were offered. The farmers were found to be risk averters, and their preferences conformed to the hypothesis of increasing (nondecreasing) partial relative ...
DOI:
10.1111/j.1574-0862.1987.tb00013.x

28. Structural Change and its Impact on Traditional Agricultural Sectors of Rapidly Developing Countries: The Case of Natural Rubber

Author:
Colin Barlow; S.K. Jayasuriya
Source:
Agricultural economics 1987 v.1 no.2 pp. 159-174
ISSN:
0169-5150
Subject:
agricultural industry; developing countries; exports; issues and policy; manufacturing; off-farm employment; prices; rubber; Indonesia; Malaysia; Thailand
Abstract:
... Rapid structural change is now a major feature of several Southeast Asian economies. It generally involves greatly expanded exports of certain commodities and manufactures accompanied by a large growth in services, and poses serious difficulties for traditional labour‐intensive sectors. One important sector affected in this way is that producing natural rubber in Malaysia, Indonesia and Thailand. ...
DOI:
10.1111/j.1574-0862.1987.tb00015.x

29. Collateral, Guaranties and Rural Credit in Developing Countries: Evidence from Asia

Author:
Gershon Feder; Tongroj Onchan; Tejaswi Raparla
Source:
Agricultural economics 1988 v.2 no.3 pp. 231-245
ISSN:
0169-5150
Subject:
agricultural land; credit; developing countries; farmers; issues and policy; loans; markets; ownership; supply balance; Thailand
Abstract:
... The paper reviews the theory of the impact of loan collateral, and in particular land collateral, in institutional and non‐institutional rural credit markets. Evidence from three Asian developing countries is presented, showing extensive use of land collateral among institutional lenders in countries where such collateral is legal. The use of land collateral is more common than other forms of secu ...
DOI:
10.1111/j.1574-0862.1988.tb00054.x

30. Dermacentor (Indocentor) steini (Acari: Ixodoidea: Ixodidae): hosts, distribution in the Malay Peninsula, Indonesia, Borneo, Thailand, the Philippines, and New Guinea

Author:
Wasseef, H.Y.; Hoogstraal, H.
Source:
Journal of medical entomology 1988 v.25 no.5 pp. 315-320
ISSN:
0022-2585
Subject:
swine; wild animals; Dermacentor; geographical distribution; tick infestations; host plants; plant pests; Indonesia; Borneo; Papua New Guinea; Malaysia; Philippines; Thailand
DOI:
10.1093/jmedent/25.5.315

31. Iron‐deficiency specifically limits nodule development in peanut inoculated with Bradyrhizobium sp.

Author:
G. W. O'HARA; M. J. DILWORTH; N. BOONKERD; P. PARKPIAN
Source:
new phytologist 1988 v.108 no.1 pp. 51-57
ISSN:
0028-646X
Subject:
Arachis; Bradyrhizobium; cultivars; greenhouses; iron; nitrogen fixation; nitrogenase; peanuts; rhizosphere; root diseases; root nodules; symbiosis; Thailand
Abstract:
... Severely iron‐deficient peanuts (Arachis hypogaaea L.) grown on calcareous soils in central Thailand failed to nodulate until given foliar iron applications. Glasshouse experiments were conducted on two cultivars (Tainan 9 and Robut 33–1) to identify which stage of the nodule symbiosis was most sensitive to iron‐deficiency. Iron‐deficiency did not limit growth of soil or rhizosphere populations of ...
DOI:
10.1111/j.1469-8137.1988.tb00203.x

32. Resistance to insecticides in a Thailand strain of Heliothis armigera (Hubner) (Lepidoptera: Noctuidae)

Author:
Ahmad, M.; McCaffery, A.R.
Source:
Journal of economic entomology 1988 v.81 no.1 pp. 45-48
ISSN:
0022-0493
Subject:
Helicoverpa armigera; larvae; strains; insecticide resistance; insecticides; bioassays; toxicology; Thailand
Abstract:
... Bioassays were conducted with a range of insecticides to assess the degree of resistance in a strain of Heliothis armigera (Hubner) collected from the field in Thailand. A susceptible laboratory strain which had LD50's similar to those of susceptible field populations was used as a reference strain for comparisons. The Thailand strain had high levels of resistance at LD50's--resistance factors of ...
DOI:
10.1093/jee/81.1.45

33. 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:
Cocos nucifera; Philippines; coconut meal; coconuts; disease control; energy; exports; fruits; income; industry; market development; markets; research projects; trees; vegetable oil; India; Indonesia; Sri Lanka; Thailand
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

34. Calcium and Magnesium Availability and Uptake by Rice in Acid Sulfate Soils

Author:
P. A. Moore; W. H. Patrick
Source:
Soil Science Society of America journal 1989 v.53 no.3 pp. 816-822
ISSN:
0361-5995
Subject:
Oryza sativa; acid sulfate soils; calcium; cation exchange; cation exchange capacity; cations; growth chambers; magnesium; minerals; nutrient deficiencies; rice; soil solution; solubility; Thailand
Abstract:
... Deficiencies of Ca and Mg have been suggested to be constraints on rice (Oryza sativa L.) growth in acid sulfate soils. This study was conducted to determine the solubility of Ca and Mg under natural conditions in these soils, to determine what governs the solubilities of these metals, and to investigate uptake of these metals by rice. Metal availability and uptake by rice were evaluated in 134 fl ...
DOI:
10.2136/sssaj1989.03615995005300030032x

35. Iron Availability and Uptake by Rice in Acid Sulfate Soils

Author:
P. A. Moore; W. H. Patrick
Source:
Soil Science Society of America journal 1989 v.53 no.2 pp. 471-476
ISSN:
0361-5995
Subject:
Oryza sativa; acid sulfate soils; cation exchange; cultivars; equations; ferric oxide; growth chambers; hydroxides; iron; nutrients; panicles; rice; sodium acetate; soil pH; soil solution; solubility; toxicity; Thailand
Abstract:
... Iron toxicity is one of the main constrains to rice (Oryza sativa L.) growth on acid sulfate soils. The objectives of this study were to determine the solubility of Fe under natural conditions in these soils, to determine what governs Fe solubility, and to investigate Fe uptake by rice growing on these soils. Iron availability and uptake by rice was evaluated in 134 flooded acid sulfate soils in t ...
DOI:
10.2136/sssaj1989.03615995005300020028x

36. Manganese Availability and Uptake by Rice in Acid Sulfate Soils

Author:
P. A. Moore; W. H. Patrick
Source:
Soil Science Society of America journal 1989 v.53 no.1 pp. 104-109
ISSN:
0361-5995
Subject:
Oryza sativa; acid sulfate soils; aluminum; carbonates; cation exchange; cation exchange capacity; cations; growth chambers; hydroxides; iron; manganese; nutrient availability; nutrient uptake; oxides; panicles; phosphates; rice; silicates; soil solution; solubility; toxicity; Thailand
Abstract:
... Although Al and Fe toxicities have been reported to be major constraints to rice (Oryza sativa L.) growth on acid sulfate soils, it is unclear as to whether or not Mn reaches toxic proportions in these soils. The objectives of this study were: (i) to measure the solubility of Mn in flooded acid sulfate soils cropped to rice, (ii) to determine what controls Mn solubility in these soils, and (iii) t ...
DOI:
10.2136/sssaj1989.03615995005300010019x

37. A Method to Measure Radial Incremenf in Tropical Trees

Author:
Takayoshi Shiokura
Source:
IAWA journal v.10 no.2 pp. 147-154
ISSN:
0928-1541
Subject:
cambium; felling; forest trees; mangroves (trees); tropical plants; wood; wood anatomy; Borneo; Indonesia; Japan; Thailand
Abstract:
... Radial increment was studied in natural forest trees in East Kalimantan, Indonesia, and in mangrove trees in Thailand and on Iriomote Island (Japan). Nails were driven into the trunk at breast height. Barrier zones fonned in response were located after felling of the tree, and the amount of wood fonned subsequent to nailing was measured. Thanks to the distinctness of the cambial response to nailin ...
DOI:
10.1163/22941932-90000482

38. Population affinities of the asiatic cobra (Naja naja) species complex in south-east Asia: reliability and random resampling

Author:
Source:
Biological journal of the Linnean Society 1989 v.36 no.4 pp. 391-409
ISSN:
0024-4066
Subject:
Naja naja; geographical variation; multivariate analysis; snake bites; sympatry; Borneo; Indonesia; Malaysia; Thailand
Abstract:
... The population systematics of the cobras of the genus Naja in southern Thailand, Malaysia and Indonesia are investigated, using multivariate analysis of a large number of morphological characters. These populations are found to constitute three distinct groups: a northern form, which occurs in Thailand and northern Peninsular Malaysia; an equatorial form, which occurs in southern Thailand, Peninsu ...
DOI:
10.1111/j.1095-8312.1989.tb00503.x

39. Registration of 'Si Samrong 60' cotton

Author:
Jan-Orn, J.; Pumklom, M.; Chareontoh, P.; Janbunmee, S.; Thavarasook, C.; Benjasil, V.
Source:
Crop science 1989 v.29 no.1 pp. 236
ISSN:
0011-183X
Subject:
Gossypium hirsutum; cultivars; parentage; disease resistance; Thailand
DOI:
10.2135/cropsci1989.0011183X002900010056x

40. The effect of gelling agents on plaunotol accumulation in callus cultures of Croton sublyratus Kurz

Author:
Morimoto, H.; Murai, F.
Source:
Plant cell reports 1989 v.8 no.4 pp. 210-213
ISSN:
0721-7714
Subject:
leaves; callus; chemical composition; terpenoids; biosynthesis; culture media; agarose; Thailand
DOI:
10.1007/BF00778534
PubMed:
24233138

41. Allozyme variation among the spontaneous species of Sorghum section Sorghum (Poaceae)

Author:
Morden, C.W.; Doebley, J.; Schertz, K.F.
Source:
Theoretical and applied genetics 1990 v.80 no.3 pp. 296-304
ISSN:
0040-5752
Subject:
geographical distribution; taxonomy; principal component analysis; isozymes; Sorghum halepense; Sorghum bicolor subsp. drummondii; genetic variation; Sorghum almum; Sorghum bicolor subsp. verticilliflorum; Iran; India; Africa; Turkey (country); Thailand
DOI:
10.1007/BF00210063
PubMed:
24220960

42. Applicability of presence-absence and sequential sampling for ovitrap surveillance of Aedes (Diptera: Culicidae) in Chiang Mai, Northern Thailand

Author:
Mogi, M.; Choochote, W.; Khamboonruang, C.; Suwanpanit, P.
Source:
Journal of medical entomology 1990 v.27 no.4 pp. 509-514
ISSN:
0022-2585
Subject:
Aedes aegypti; Aedes albopictus; insect traps; ova; pest control; decision making; density; epidemiology; probability analysis; sampling; Thailand
DOI:
10.1093/jmedent/27.4.509
PubMed:
2388225

43. Cadmium content in rice and its daily intake in various countries

Author:
Rivai, I.F.; Koyama, H.; Suzuki, S.
Source:
Bulletin of environmental contamination and toxicology 1990 v.44 no.6 pp. 910-916
ISSN:
0007-4861
Subject:
rice; food safety; cadmium; food intake; India; China; Bangladesh; Thailand; Indonesia; Philippines; Japan; South Korea
DOI:
10.1007/BF01702183
PubMed:
2354269

44. Cotton boll weevil antifeedant activity and antifungal activity (Rhizoctonia solani and Pythium ultimum) of extracts of the stems of Wedelia biflora

Author:
Miles, D.H.; Chittawong, V.; Payne, A.M.; Hedin, P.A.; Kokpol, U.
Source:
Journal of agricultural and food chemistry 1990 v.38 no.7 pp. 1591-1594
ISSN:
0021-8561
Subject:
Wedelia; plant extracts; insecticidal properties; Anthonomus grandis; antifungal agents; Thanatephorus cucumeris; chemical constituents of plants; Thailand
DOI:
10.1021/jf00097a034

45. Detailed analysis of 30 fertelizer demonstrations in southern thailand

Author:
J. Dootson; J.R.J. Moss; Sura Rungreung; Saowannee Meemuth; K. Ryder; Maliwan Rattanapruk
Source:
CORD. Coconut research & development 1990 v.06 no.01 pp. 1-13
ISSN:
2721-8856
Subject:
coconuts; cost effectiveness; fertilizers; probability; research; Thailand
Abstract:
... Twice‑yearly coconut counts taken from 30 different demonstra­tions on Thai Tall palms showed that applying fertilizer increased the number of nuts produced over the 3 years studied. Application of 2kg of a 13:13:21 NPK compound was ‑shown to be more cost effective than applying 4kg of the same compound, but was rarely profitable, as the largest responses occurred in years when yields were high an ...
DOI:
https://doi.org/10.37833/cord.v6i01.232

46. Effect of thalassemia/hemoglobin E disease on macro, trace, and ultratrace element concentrations in human tissue

Author:
Shuler, Terrence R.; Pootrakul, Pensri; Yarnsukon, Pornpun; Nielsen, Forrest H.
Source:
Journal of trace elements in experimental medicine 1990 v.3 pp. 31-43
ISSN:
1520-670X
Subject:
humans; thalassemia; hemoglobin; brain; kidneys; liver; pancreas; spleen; tissue distribution; chemical concentration; trace elements; dietary minerals; Thailand
Abstract:
... Limited attention has been given to the possibility that elements other than iron are abnormally distributed or retained in various organs of individuals with iron-loading anemias such as thalassemia. Thus, autopsy samples were obtained from organs of individuals with .beta.-thalassemia/HbE disease and nonthalassemic individuals who died in accidents. Calcium, magnesium, phosphorus, copper, iron, ...
Handle:
10113/49309

47. Factors Affecting Rice Growth on Acid Sulfate Soils

Author:
P. A. Moore; T. Attanandana; W. H. Patrick
Source:
Soil Science Society of America journal 1990 v.54 no.6 pp. 1651-1656
ISSN:
0361-5995
Subject:
Oryza sativa; acid sulfate soils; acidity; aluminum; calcium; cations; dry matter accumulation; greenhouse production; growth chambers; ionic strength; iron; nutrient uptake; pH; plant growth; rice; silicon; toxicity; Thailand
Abstract:
... Rice (Oryza sativa L.) yields on acid sulfate soils, which comprise a sizable portion of the rice-growing area in Southeast Asia, are constrained by soil parameters. The objective of this study was to identify those parameters most strongly related to rice growth. Metal availability and uptake by rice were evaluated in the Central Plains of Thailand using 134 flooded acid sulfate soils and in a gr ...
DOI:
10.2136/sssaj1990.03615995005400060024x

48. Hyperendemic malaria in a Thai village: dependence of year-round transmission on focal and seasonally circumscribed mosquito (Diptera: Culicidae) habitats

Author:
Gingrich, J.B.; Weatherhead, A.; Sattabongkot, J.; Pilakasiri, C.; Wirtz, R.A.
Source:
Journal of medical entomology 1990 v.27 no.6 pp. 1016-1026
ISSN:
0022-2585
Subject:
Anopheles; disease transmission; disease vectors; habitats; human diseases; malaria; Plasmodium falciparum; villages; Thailand
DOI:
10.1093/jmedent/27.6.1016
PubMed:
2280385

49. Introgression of genes from Oryza officinalis well ex watt to cultivated rice, O. sativa, L

Author:
Jena, K.K.; Khush, G.S.
Source:
Theoretical and applied genetics 1990 v.80 no.6 pp. 737-745
ISSN:
0040-5752
Subject:
backcrossing; plant breeding; phenotype; Oryza sativa; crop yield; genes; genetic recombination; pest resistance; plant morphology; Fulgoroidea; introgression; Malaysia; Philippines; India; Thailand
DOI:
10.1007/BF00224186
PubMed:
24221103

50. Thinking about coconut breeding programmes

Author:
Hugh C. Harries
Source:
CORD. Coconut research & development 1990 v.06 no.02 pp. 26-37
ISSN:
2721-8856
Subject:
coconuts; research; Jamaica; Papua New Guinea; Thailand
Abstract:
... The following text is based on coconut breeding experience in Jamaica, Thailand and Papua New Guinea, as well as on working visits to many (but by no means all) coconut growing countries. The ideas expressed are those of the author, but they have benefited from an open exchange of views with coconut breeding colleagues, research workers, extension officers, agricultural economists and others. Perh ...
DOI:
https://doi.org/10.37833/cord.v6i02.240