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- Author:
- Misner, E.G.
- Source:
- Agronomy journal 1929 v.21 no.6 pp. 594-603
- ISSN:
- 0002-1962
- Subject:
- crop production; pastures; crops; farm income; cost benefit analysis; New York; Minnesota; North Dakota; South Dakota; England
- Abstract:
- ... The writer's belief concerning pasture improvement may be summarized thus: 1. Cleaning up the pasture is the first big job on the majority of farms. 2. Apply some manure on pastures where the hauling is reasonable and the pasture not too rough. 3. Improve with lime and superphosphate. For the majority of pastures the first two recommendations are the horses and number three the cart. Let us not ge ...
- DOI:
- 10.2134/agronj1929.00021962002100060003x
-
http://dx.doi.org/10.2134/agronj1929.00021962002100060003x
- Author:
- Daji, J.A.
- Source:
- Agronomy journal 1934 v.26 no.6 pp. 466-474
- ISSN:
- 0002-1962
- Subject:
- organic matter; iron oxides; green manures; height; crop yield; shoots; nitrogen content; Hordeum vulgare; tillering; calcium oxide; plant characteristics; phosphoric acid; Vicia; potassium; Beta vulgaris; seed germination; magnesium oxide; nitrogen; Brassica; aluminum oxide; nutrient availability; fertilizers; composting; England
- Abstract:
- ... 1. Young tares, young mustard, and sugar beet tops had a beneficial effect on the barley crop when used as green manures. They accelerated germination, increased the tillering capacity, and gave bigger yields of grain and straw than the control. This was true of all three manures in whatever way they were applied. The same applies to the artificial fertilizers. 2. The yield of grain and straw was ...
- DOI:
- 10.2134/agronj1934.00021962002600060002x
-
http://dx.doi.org/10.2134/agronj1934.00021962002600060002x
- Author:
- Parkes, I. W. Rowlands and A. S.
- Source:
- Proceedings of the Zoological Society of London 1935 v.105 no.4 pp. 823-841
- ISSN:
- 0370-2774
- Subject:
- animal fertility; vagina; puberty; males; foxes; gestation period; captive animals; pregnancy; uterus; mutants; mating behavior; ovulation; domestication; estrus; females; breeding season; Vulpes vulpes; Scotland; England
- Abstract:
- ... 1 An account is given of the histo‐physiology of reproduction in the British Red Fox (Vulpes vulpes) and in the Silver Fox, a mutant of the American Red Fox (Vulpes fulva), now kept extensively in captivity. There appears to be no obvious difference in the reproductive processes of the two species. 2 Both species have one breeding season only per year and one period of œstrus. In the silver fox th ...
- DOI:
- 10.1111/j.1469-7998.1935.tb06267.x
-
http://dx.doi.org/10.1111/j.1469-7998.1935.tb06267.x
- Author:
- Fox, H. Munro
- Source:
- Proceedings of the Zoological Society of London 1936 v.106 no.4 pp. 945-955
- ISSN:
- 0370-2774
- Subject:
- Chlamys; Pandalus; latitude; locomotion; oxygen; oxygen consumption; scallops; shrimp; temperature; England
- Abstract:
- ... This is the first comparative study of the activity and metabolism of poikilothermal animals living in different latitudes. For seven pairs of species of marine invertebrates, inhabiting respectively English waters and more northern seas, the oxygen consumption of the warmerwater species is greater than that of the colder‐water species (measured at the normal temperatures at which each species liv ...
- DOI:
- 10.1111/j.1469-7998.1936.tb06295.x
-
http://dx.doi.org/10.1111/j.1469-7998.1936.tb06295.x
- Author:
- Fox, Kenneth R.
- Source:
- Textile research journal 1950 v.20 no.2 pp. 132-135
- ISSN:
- 0040-5175
- Subject:
- fabrics; textile fibers; universities; England
- Abstract:
- ... The following article is the text of an address delivered by the author at the Anglo-American Conference on Textile Education held in Buxton, England, October 29-30, 1949. It is printed in the JOURNAL because of reader interest in the pro grams being conducted in the several textile colleges, especially as they relate to textile research.—Editor. ...
- DOI:
- 10.1177/004051755002000209
-
http://dx.doi.org/10.1177/004051755002000209
- Author:
- EMDEN, H.F.; JEPSON, W.F.; SOUTHWOOD, T.R.E.
- Source:
- Entomologia experimentalis et applicata 1961 v.4 no.3 pp. 220-225
- ISSN:
- 0013-8703
- Subject:
- Oscinella frit; larvae; mortality; oats; England
- Abstract:
- ... The occurrence of an additional generation in oats of the frit fly (Oscinella frit L.) is reported. The partial emergence of the generation and the high rate of larval mortality are discussed. ...
- DOI:
- 10.1111/j.1570-7458.1961.tb02137.x
-
http://dx.doi.org/10.1111/j.1570-7458.1961.tb02137.x
- Author:
- QADRI, SYED SHAMSUDDIN
- Source:
- Proceedings of the Zoological Society of London 1962 v.139 no.2 pp. 329-335
- ISSN:
- 0370-2774
- Subject:
- Chloromyxum; Cyprinus carpio; Myxidium; Scardinius erythrophthalmus; carp; fish diseases; freshwater fish; gall bladder; lakes; new species; England
- Abstract:
- ... An account is given of the morphology systematic position and differential diagnosis of the following three new Myxosporidia from freshwater fishes:—Myxidium scardini sp. n. found in the gall bladder of the rudd, Scardinius erythrocephalus, obtained from Lake Windermere, Westmorland, England, Zschokkella cyprini sp. n. of carp, Cyprinus carpio, caught from a gravel pit near Shenley, Hertfordshire ...
- DOI:
- 10.1111/j.1469-7998.1962.tb01832.x
-
http://dx.doi.org/10.1111/j.1469-7998.1962.tb01832.x
- Author:
- Megard, Robert O.
- Source:
- Ecology 1967 v.48 no.2 pp. 179-189
- ISSN:
- 0012-9658
- Subject:
- Cladocera; fauna; lakes; rain; sediments; temperate zones; temperature; England; Germany; Iran
- Abstract:
- ... Between about 22,500 and 12,000 years ago cosmopolitan and northern Chydoridae were dominant in Lake Zeribar. Species with southern affinities replaced the northern species between 12,000 and 5,000 years ago. During the last 5,000 years the chydorid fauna has been composed of southern and cosmopolitan species, and the planktonic cladoceran, Bosmina longirostris, has been more abundant than it was ...
- DOI:
- 10.2307/1933099
-
http://dx.doi.org/10.2307/1933099
- Author:
- TAKSDAL, GUDMUND
- Source:
- Entomologia experimentalis et applicata 1967 v.10 no.3-4 pp. 377-386
- ISSN:
- 0013-8703
- Subject:
- Cecidophyopsis ribis; black currants; branches; buds; cold; cold tolerance; cold treatment; control methods; egg production; eggs; mites; mortality; England; Norway
- Abstract:
- ... Population samples of C. ribis from eastern Norway, western Norway, and England, and cuttings of 5 black currant varieties were exposed for different periods to -- 18.5° ± 0.5° C and mites also to 6°. Mite mortality, mite emigration, egg production at 6°, and bud burst of the cuttings, were observed. Marked differences were found between the mite populations both in their ability to produce eggs a ...
- DOI:
- 10.1111/j.1570-7458.1967.tb02457.x
-
http://dx.doi.org/10.1111/j.1570-7458.1967.tb02457.x
- Author:
- SUTHERLAND, O.R.W.; MITTLER, T.E.
- Source:
- Entomologia experimentalis et applicata 1969 v.12 no.2 pp. 240-241
- ISSN:
- 0013-8703
- Subject:
- Acyrthosiphon pisum; Aphis fabae; Megoura viciae; Myzus persicae; Vicia faba; adults; artificial diets; beans; eggs; fecundity; females; host plants; insects; larvae; lees; males; mortality; parthenogenesis; plant cultural practices; progeny; rearing; sexual reproduction; England
- Abstract:
- ... In recent years a number of aphid species have been successfully reared on chemically defined diets (Dadd & Mittler, 1966; Auclair, 1965; Dadd & Krieger, 1967; Ehrhardt, 1968). The development of such diets has offered an opportunity to study in detail several aspects of the physiology of these insects. In particular, the composition of the artificial diet has been shown to influence the productio ...
- DOI:
- 10.1111/j.1570-7458.1969.tb02520.x
-
http://dx.doi.org/10.1111/j.1570-7458.1969.tb02520.x
- Author:
- BEDDOWS, A. R.
- Source:
- Biological journal of the Linnean Society 1969 v.1 no.3 pp. 287-292
- ISSN:
- 0024-4066
- Subject:
- Dactylis glomerata; Epichloe coenophiala; Lolium perenne; cultivars; grazing intensity; habitats; heading; light intensity; panicles; plant breeding; statistical analysis; sward; Denmark; England; France; New Zealand; United States
- Abstract:
- ... The date distribution of emergence in panicles of Dactylis glomerata was studied over several years at the Welsh Plant Breeding Station, Aberystwyth. Indigenous populations from southwest England, and western France showed a negatively skew distribution, as did cultivars from U.S.A., Denmark, and New Zealand, but in those from U.S.S.R. the skewness was not significant. It is suggested that this ne ...
- DOI:
- 10.1111/j.1095-8312.1969.tb00121.x
-
http://dx.doi.org/10.1111/j.1095-8312.1969.tb00121.x
- Author:
- Barkham, John P.; Norris, John M.
- Source:
- Ecology 1970 v.51 no.4 pp. 630-639
- ISSN:
- 0012-9658
- Subject:
- Fagus; canopy; principal component analysis; soil water; woodlands; England
- Abstract:
- ... Vegetation and soil systems in two beechwoods were examined by measurements of variables at the same sites. Principal components analysis was used to generate hypotheses about the relationship between vegetation and soil which were tested by simple correlation of components and variables. Further information explaining the variation of the vegetation system was obtained by simple correlation with ...
- DOI:
- 10.2307/1934042
-
http://dx.doi.org/10.2307/1934042
- Author:
- Feeny, Paul
- Source:
- Ecology 1970 v.51 no.4 pp. 565-581
- ISSN:
- 0012-9658
- Subject:
- Operophtera brumata; Quercus; herbivores; insect growth; insect larvae; insects; leaf protein; leaves; nitrogen; nutrients; palatability; pathogens; protein content; seasonal variation; spring; sugar content; summer; tannins; texture; England
- Abstract:
- ... Concentration in the spring of feeding by caterpillars of the winter moth, Operophtera brumata L., and other species of Lepidoptera on oak trees in England is believed to be related to seasonal changes in the texture and chemical composition of the leaves. Increasing leaf toughness is a proximate, though probably not ultimate, factor preventing late larval feeding by the winter moth, the commonest ...
- DOI:
- 10.2307/1934037
-
http://dx.doi.org/10.2307/1934037
- Author:
- Hughes, Malcolm K.
- Source:
- Ecology 1971 v.52 no.5 pp. 923-926
- ISSN:
- 0012-9658
- Subject:
- autumn; canopy; forest litter; ground vegetation; leaves; seasonal variation; summer; trees; wood; woodlands; England
- Abstract:
- ... In a deciduous woodland in England ground—vegetation calorific values (4.158—4.517 Kcal/g ash—free weight) were lower than those for the tree wood (4.565—5.211 Kcal/g ash—free weight) and canopy leaves (4.632—5.635 Kcal/g ash—free weight). Ground—vegetation litter had lower calorific values (4.387—4.772 Kcal/g ash—free dry weight) than canopy litter on the forest floor (4.814—5.229 Kcal/g ash—free ...
- DOI:
- 10.2307/1936045
-
http://dx.doi.org/10.2307/1936045
- Author:
- Baker, Herbert G.
- Source:
- Ecology 1972 v.53 no.6 pp. 997-1010
- ISSN:
- 0012-9658
- Subject:
- Ranunculus; altitude; dispersibility; drought; flora; growing season; habitats; herbaceous plants; herbs; humans; indigenous species; mesic conditions; mountains; nutrition; perennials; plant communities; reproductive performance; risk; root growth; root systems; roots; seedlings; seeds; shade; shoots; shrubs; trees; water stress; weeds; California; England
- Abstract:
- ... Analyses of the California flora involving nearly 2,500 taxa are presented which show that there are correlations between the weights of individual seeds and environmental conditions in which their producers normally grow. These differences in seed weight appear to be adaptive and result from compromises between increased nutrition of the seedling which would result from larger food reserves in he ...
- DOI:
- 10.2307/1935413
-
http://dx.doi.org/10.2307/1935413
