Results 21 to 30 of about 521 (165)
Functional Heterostyly in Tylosema esculentum (Caesalpinioideae) [PDF]
Annals of Botany, 2002 Tylosema esculentum is a long-lived perennial species endemic to arid areas of southern Africa. Its potential as a crop species has long been recognized as a result of the high oil and protein content of its seeds. The reproductive biology and breeding systems of the species were investigated in wild and experimental populations growing in Botswana ...
Mary Luisa, Hartley +2 more
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Heterostyly in Linum aretioides
Turkish Journal of Botany, 2013 The petal width; sepal, pistil, and stamen lengths; and changes in pollen sizes associated with heterostyly of different morphs in populations of Linum aretioides Boiss. were investigated. Fruit sets were compared in 2 populations and it was investigated whether the Bozdag population has a heteromorphic incompatibility system.
Guvensen, Aykut +2 more
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Heterostyly: speciation within a species [PDF]
Population Ecology, 2004 AbstractAlmost all organisms in nature show nonrandom mating to different degrees. Two extreme results of nonrandom mating are speciation and sexual differentiation. Heterostyly is a form of sexual differentiation considered to have evolved to resolve conflicts between male and female functions of hermaphrodite flowers. Our study examines necessary and
Shoko Sakai, Yukihiko Toquenaga
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The influence of heterostyly on the fructification of two Chaenomeles species
Acta Agrobotanica, 2013 The fructification of Chaenomeles japonica Lindl. and Ch. x superba grown in the Botanical Garden in Lublin was investigated in 1999 and 2002-2003. The influence of heterostyly on the degree of fruit setting and considerable morphological differences ...
Bożena Denisow
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Frontiers in Plant Science, 2021 Outcrossing plant species are more likely to exhibit autonomous selfing in marginal habitats to ensure reproduction under conditions of limited pollinator and/or mate availability.
Wei Zhang +8 more
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Brazilian Archives of Biology and Technology, 2008 The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha. It presented heterostyly, with brevistylous and longistylous flowers.
Margarete Magalhães Souza +3 more
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Rediscovery of Primula brachystoma (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier [PDF]
PhytoKeys, 2023 The rare Primula brachystoma W.W.Sm. is an endemic species confined to Gaoligong mountain of Chinese-Burma frontier, which has been rediscovered from the same region after nearly 100 years.
Xiao-Qi Jiang, Na Zhang, Zhi-Kun Wu
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Pollination, fertilization and fruit formation in eggplant (Solanum melongena L.)
Acta Agrobotanica, 2012 The aim of the investigations was to determine the regularity of pollination and fertilization as dependent on the phenotype of flower in eggplant. The experiment was conducted in 2005 and 2006 at the Agricultural University in Kraków, Poland. The object
Agnieszka Sękara, Monika Bieniasz
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Acta Botânica Brasílica, 2021 Intraspecific floral variations may affect the degree of generalization and efficacy of pollinators, with consequences for plant reproductive success.
Alessandra Ribeiro Pinto +3 more
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On the origins of observations of heterostyly in Primula [PDF]
New Phytologist, 2015 SummaryIn 1862, Charles Darwin published his landmark study on the different forms of flower in Primula; he coined the term distyly and subsequently expanded his studies to other species, including those with tristyly. Darwin is widely recognized as the first to study pin and thrum flowers in Primula, and to provide an explanation for the functional ...
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