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Lack of floral nectar reduces self-pollination in a fly-pollinated orchid
Oecologia, 2005One explanation for the widespread absence of floral nectar in many orchids is that it causes pollinators to visit fewer flowers on a plant, and thus reduces self-pollination. This, in turn, could increase fitness by reducing inbreeding depression in progeny and promoting pollen export.
Jana, Jersáková, Steven D, Johnson
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Pollination: Two-step self-pollination provides a safety net
Current BiologyHow do self-pollinating plants maximize fertility under pollen-limiting stresses? A recent study shows that some Brassicaceae species employ a dynamic two-step self-pollination mechanism. Flower closure after initial opening enables a second pollen deposition, doubling the pollen load and rescuing seed set under heat stress or fertilization failure.
Meng, Li, Shuang, Wu
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Pollination and self-interference in Nothofagus
Flora - Morphology, Distribution, Functional Ecology of Plants, 2013Abstract Interference between male and female functions within a monoecious plant may hinder crossing and decrease seed set. We assessed the probability of self-pollination and the effect of self-pollination on cross-pollination for two self-incompatible species: Nothofagus obliqua and N. nervosa .
Cristian Daniel Torres +1 more
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Ecology, 2006
(Uploaded by Plazi for the Bat Literature Project) Reproductive assurance is often invoked as an explanation for the evolution of self-fertilization in plants. However, key aspects of this hypothesis have received little empirical support. In this study, I use geographic surveys of pollinator communities along with functional studies of floral trait ...
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(Uploaded by Plazi for the Bat Literature Project) Reproductive assurance is often invoked as an explanation for the evolution of self-fertilization in plants. However, key aspects of this hypothesis have received little empirical support. In this study, I use geographic surveys of pollinator communities along with functional studies of floral trait ...
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Role of natural self-pollination in self-fruitfulness of almond
Scientia Horticulturae, 1985Abstract The capacity for self-fruitfulness in the almond cultivar ‘Le Grand’ is limited by (a) self-incompatibility and (b) insufficient capacity for natural self-pollination. Expression of self-incompatibility following self-pollination by hand reduced fruit-set by 67 and 89% in 2 crop-years in comparison with fruit-set percentages achieved ...
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Insect Induced Self-Pollination
Plant Systematics and Evolution, 1984Significant increase of pod production occurs inLupinus palaestinus Boiss. andL. pilosus Murr. following insect visits. The cause of this increase is investigated through (1) examination of the biology of pollination, (2) examination of pod production under various pollination conditions, (3) examination of cross pollination by genetical markers.
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Breeding Self-Pollinated Crops
2019As a matter of fact, breeding procedures and schemes differ with the breeding behaviour of a particular species. At the beginning of each breeding programme, the breeder should decide on the type of cultivar to breed for release to farmers. The breeding method used depends on the type of cultivar to be produced. There are basic types of cultivars, viz.,
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Speciation Under Self-Pollination
1999Self-pollination introduces automatically reproductive isolation both between lines (within a species) and between species. It is argued that the reproductive isolation barrier caused by this breeding system affects considerably the mode of speciation in autogamous plants: it frequently substitutes for geographic separation, and facilitates the build ...
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Breeding Self-Pollinated Crops
1987The challenge of the plant breeder is to develop better varieties. In this chapter we are concerned with the methods by which new varieties of self-pollinated crop plants originate. Before we proceed into a discussion of these methods, let us consider the question, “What is a variety?”
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