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Sexual Reproduction of Sheepgrass (Leymus chinensis)

文献类型: 外文期刊

作者: Jia, Junting 1 ; Li, Xiaoxia 2 ; Qi, Dongmei 2 ;

作者机构: 1.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangzhou, Peoples R China

2.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing, Peoples R China

期刊名称:SHEEPGRASS (LEYMUS CHINENSIS): AN ENVIRONMENTALLY FRIENDLY NATIVE GRASS FOR ANIMALS

ISSN:

年卷期: 2019 年

页码:

收录情况: SCI

摘要: Sheepgrass is a cross-pollination and self-incompatible plant. In the natural habitat, the asexual reproduction of sheepgrass occupies the absolute superiority, and the sexual reproductive capacity is weak. The sexual reproduction characteristics of sheepgrass are based on the pollination process and seed development. The flower of sheepgrass has two glumes and lodicules, three stamens, and a pistil, with two-lobed stigma and orange anthers. The development of microspore is similar to the male gametophytes of common graminaceous plants such as wheat. Sheepgrass flowers bloom at about 2 months after turning green which can vary in regions. During seed development, the color, vigor, and weight of seeds are the indicators of seed maturity. Sheepgrass is highly self-incompatible, and the seed setting rate of sheepgrass can be affected by various environmental factors rather than the microsporogenesis and pollen grain development, suggesting feasible methods in breeding and production.

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