Effects of Pollen Quantity on Progeny Vigor: Evidence from the Desert Mustard Lesquerella Fendleri.
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چکیده
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منابع مشابه
Reproductive Success Increases with Local Density of Conspecifics in a Desert Mustard (Lesquerella fendleri)
We investigated the effects of plant density on reproduction for an insect-pollinated desert mustard ( Lesquerella fendleri [Brassicaceae]). Individual reproductive success, as measured by seeds per fruit, proportion of flowers setting fruit, and total seed production, increased with the density of conspecifics within 1 m. However, including the density of conspecifics at greater distances (1–3...
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Lesquerella, Physaria fendleri (A. Gray) S. Watson, is a mustard native to the western United States and is currently being developed as a commercial source of valuable hydroxy fatty acids that can be used in a number of industrial applications, including biolubricants, biofuel additives, motor oils, resins, waxes, nylons, plastics, corrosion inhibitors, cosmetics, and coatings. The plant is cu...
متن کاملNonrandom mating and sexual selection in a desert mustard: an experimental approach.
We report on an experiment to explore the importance of pollinator behavior and postpollination events within flowers in generating nonrandom mating in the desert perennial Lesquerella fendleri (Brassicaceae). In this experiment, we crossed four plants with each other in all combinations. We performed these crosses in three different ways, which varied the opportunity for nonrandom mating: sing...
متن کاملGenetic Effects of Germination Timing and Environment: an Experimental Investigation.
Seeds of many species do not germinate immediately after dispersal, but instead may remain indefinitely in a dormant but viable state. Although it is well established that seeds often exhibit diversified patterns of dormancy and germination, the causes and consequences of this variation remain poorly understood. In this study, we investigate the extent to which seed genotypes of the desert must...
متن کاملDo surface plant and soil seed bank populations differ genetically? A multipopulation study of the desert mustard Lesquerella fendleri (Brassicaceae).
Seed banks are an important component of many plant populations, but few empirical studies have investigated the genetic relationship between soil seeds and surface plants. We compared the genetic structure of soil seeds and surface plants of the desert mustard Lesquerella fendleri within and among five ecologically diverse populations at the Sevilleta National Wildlife Refuge in Central New Me...
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ورودعنوان ژورنال:
- Evolution; international journal of organic evolution
دوره 51 5 شماره
صفحات -
تاریخ انتشار 1997