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Limited awareness prevents the use of compost and biochar as soil amendments by Ghanaian cocoa farmers. [PDF]
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The Evolution of SelfâFertilization in Perennials
The American Naturalist, 1997Many plants are perennials, but studies of self-fertilization do not usually include features of perennial life histories. We therefore develop models that include selfing, a simple form of perenniality, adult inbreeding depression, and an adult survivorship cost to seed production. Our analysis shows that inbreeding depression in adults diminishes the
Morgan, M.T. +2 more
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SELF-FERTILITY IN THE SCLEROTINIACEAE
Canadian Journal of Botany, 1961Nine species representing five genera of the Sclerotiniaceae were found to be self-fertile. These are as follows: Ciboria acericola sp. nov., C. acerina Whetz. & Buchw., C. amentacea (Balb. ex Fr.) Fckl., C. betulicola sp. nov., C. caucus (Rebent. ex Fr.) Fckl., Ciborinia erythronii (Whetz.) Whetz., Rutstroemia paludosa (Cash & Davidson) comb ...
J. Walton Groves, Mary E. Elliott
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Cryptic Self-Fertilization in the Malpighiaceae
Science, 1980Some Malpighiaceae produce minute cleistogamous flowers in addition to showy chasmogamous flowers. Standard techniques fail to reveal how the cleistogamous flowers achieve self-fertilization. Fluorescence in longitudinal sections shows that the pollen germinates inside the indehiscent anther.
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1984
Advantages and disadvantages of self-fertile cultivars are discussed, and a method to avoid the complete loss of heterosis is suggested. Nine components of self-fertility related with the processes of pod and seed production were analysed from a genetic point of view.
J. I. Cubero, M. T. Moreno
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Advantages and disadvantages of self-fertile cultivars are discussed, and a method to avoid the complete loss of heterosis is suggested. Nine components of self-fertility related with the processes of pod and seed production were analysed from a genetic point of view.
J. I. Cubero, M. T. Moreno
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2007
AbstractPerfect (hermaphrodite) flowers can, assuming no other constraints, self-pollinate, and fertilize their own ovules. This guaranteed sexual reproduction gives self-pollinating plants the ability to colonize new habitats, and it is a common trait in weedy species.
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AbstractPerfect (hermaphrodite) flowers can, assuming no other constraints, self-pollinate, and fertilize their own ovules. This guaranteed sexual reproduction gives self-pollinating plants the ability to colonize new habitats, and it is a common trait in weedy species.
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Selection within Self-Fertilizing Populations
Biometrics, 1978A theoretical formulation of continuing selection in finite populations due to Hill (1969) is used to study the e.ects on the frequencies of the various genotypes of selecting the best individual plant according to the values of a single quantitative trait in a population that reproduces entirely by selfing. As an example of the use of the method, some
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Polyploidy and selfâfertilization in flowering plants
American Journal of Botany, 2007Mating systems directly control the transmission of genes across generations, and understanding the diversity and distribution of mating systems is central to understanding the evolution of any group of organisms. This basic idea has been the motivation for many studies that have explored the relationships between plant mating systems and other ...
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