Výsledky vyhledávání - "Edgar W. Clark"

Reproductive Diapause in Hylobius pales1

Autor: Edgar W. Clark

Publikováno v: Annals of the Entomological Society of America. 68:349-352

Examination of internal reproductive systems of pales weevil, Hylobius pales (Herbst), collected in the Raleigh-Durham area of North Carolina from mid-August to mid-May, revealed that this species has a reproductive diapause characterized by agametog

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5910614905b2c636893bf8b362361b61
https://doi.org/10.1093/aesa/68.2.349

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Artificial Media and Rearing Techniques for the Pink Bollworm

Autor: Edgar W. Clark, Clyde A. Richmond, James M. Mcgough

Publikováno v: Journal of Economic Entomology. 54:4-9

Pink bollworms ( Pectinophora gossypiella (Saund)) were reared on two artificial media, consisting of cottonseed meal or peanut flour in combination with other constituents. A combination of antimycotic agents, n-butyl- p -hydroxybenzoate, sodium ben

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73e1d11152330e9df1d7e7534680ca98
https://doi.org/10.1093/jee/54.1.4

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A Comparative Study of the Weight, and Lipid and Water Content of the Pink Bollworm2

Autor: Edgar W. Clark, Danville S. Chadbourne

Publikováno v: Annals of the Entomological Society of America. 55:225-228

Determinations were made of the weights, and lipid and water contents of nondiapause and diapause fourth-instar larvae, and pupae and adults of the pink bollworm, Pectinophora gassypiella (Saund.), from 1954 to 1959. Statistically, no differences in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9c15c6fd0e5e9817a11eca09a78f87d
https://doi.org/10.1093/aesa/55.2.225

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A Review of Literature on Calcium and Magnesium in Insects

Autor: Edgar W. Clark

Publikováno v: Annals of the Entomological Society of America. 51:142-154

Calcium and magnesium play important roles in the diet, physiological function, and intermediary metabolism of insects. An increasing interest has been shown in this subject and a large amount of literature has accumulated. It is the purpose of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ba8667440b1413cb456e44791e96d2c
https://doi.org/10.1093/aesa/51.2.142

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Variations in the inorganic composition of inner bark and needles of loblolly pine with tree height and soil series

Autor: Edgar W. Clark, Jerry D. White, Carol G. Wells

Publikováno v: Canadian Journal of Botany. 48:1079-1084

A survey was made of the concentration of N, P, K, Ca, Mg, Al, Mn, Zn, Fe, and Cu in inner bark and needles of loblolly pines and the soils in which they grew. Concentrations of K, Al, and Mn in inner bark differed significantly with plots on four so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65d030376b78de32c9801dad1ba40c28
https://doi.org/10.1139/b70-156

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Fluctuations in the inorganic constituents of inner bark of loblolly pine with season and soil series

Autor: Jerry D. White, L. T. Alexander, Edgar W. Clark

Publikováno v: Canadian Journal of Botany. 50:1287-1293

The concentrations of K, Ca, N, Mg, P, Al, Mn, Na, Zn, Fe, Cu, ash, and H2O in the inner bark of mature loblolly pines growing on three soil series were determined over a 1-year period. Concentrations of ash, H2O, Ca, Al, Mn, and Fe differed signific

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a92b31ed6d52c315ac9c5fb3ffadc113
https://doi.org/10.1139/b72-157

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