Zobrazeno 1 - 10 of 62 pro vyhledávání: '"H. G. Baker"'
2
Ecological and evolutionary implications of digestive processes: Bird preferences and the sugar constituents of floral nectar and fruit pulp
Autor: H. G. Baker, Irene Baker, C. Martinez del Rio
Publikováno v: Experientia. 48:544-551
Plants pollinated and dispersed by different groups of birds offer different kinds of sugars in nectar and fruit pulp. The preferences and physiological traits of avian pollinators and seed dispersers are broadly correlated with the sugar composition
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::172397c2b3d293404ff9f696778018cb
https://doi.org/10.1007/bf01920237
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3
A New Classification for Plant Phenology Based on Flowering Patterns in Lowland Tropical Rain Forest Trees at La Selva, Costa Rica
Autor: H. G. Baker, Gordon W. Frankie, L. E. Newstrom
Publikováno v: Biotropica. 26:141
A new classification and conceptual framework for plant phenology are proposed to resolve problems in describing tropical patterns. A long-term (12 yr) survey of flowering in 254 lowland tropical rain forest trees of 173 species from the La Selva Bio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4910443f797cb5f9b463d4ff4c0479ca
https://doi.org/10.2307/2388804
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4
ANALYSES OF AMINO ACIDS IN FLOWER NECTARS OF HYBRIDS AND THEIR PARENTS, WITH PHYLOGENETIC IMPLICATIONS
Autor: I. Baker, H. G. Baker
Publikováno v: New Phytologist. 76:87-98
SUMMARY A method for the collection and analysis of free amino acids in very small quantities of nectar is described. By dansylation and three-system polyamide chromatography individual amino acids may be detected at concentrations as low as 10 pmole
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74d223d1db345480d772dc7eed090f66
https://doi.org/10.1111/j.1469-8137.1976.tb01441.x
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6
GENECOLOGICAL STUDIES IN GERANIUM (SECTION ROBERTIANA). GENERAL CONSIDERATIONS AND THE RACES OF G. PURPUREUM VILL
Autor: H. G. Baker
Publikováno v: New Phytologist. 56:172-192
In I945, when the author's studies of the dioecious species Melandrium dioicum (L.) Coss. & Germ. and M. album (Mill.) Garcke were being rounded off, it was decided that an interesting comparison might follow the genecological investigation of a pair
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a26670c7833b0ee1529b331646471f05
https://doi.org/10.1111/j.1469-8137.1957.tb06965.x
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8
Heterostyly in the Connaraceae with Special Reference to Byrsocarpus coccineus
Autor: H. G. Baker
Publikováno v: Botanical Gazette. 123:206-211
1. Since 1887, tristyly has been claimed repeatedly as typical of the Connaraceae, with distyly and dioecism as derived conditions produced by sterilization of androecial or carpellary parts. 2. In the African genus Byrsocarpus, B. puniceus (long-sty
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f48ea9e34abf98e84908ec5a3198107
https://doi.org/10.1086/336151
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9
The origin of variation in ?wild?Raphanus sativus (Cruciferae) in California
Autor: C. A. Panetsos, H. G. Baker
Publikováno v: Genetica. 38:243-274
Analyses of populations ofRaphanus growing in the central part of California, from the Sierra Nevada foothills to the Pacific coast, show that pureR. raphanistrum can be found only in the Central Valley, while over the remainder of the area populatio
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b9e56fc37e863a983f781a9e380df53
https://doi.org/10.1007/bf01507462
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