Yield as a major breeding objective in rice, is directly influenced by the yield-component traits including the number of productive tillers per plant, grains per panicle and 1000-grain weight.
水稻产量作为主要的育种目标性状，直接受到每穗实粒数、千粒重和单株有效分蘖数等产量构成因子的影响。
Objective To reveal the breeding system and endangered mechanism of Dendrobium officinale in Danxia landform.
目的：揭示丹霞地貌生境中铁皮石斛的繁育系统及濒危机制。
Objective To investigate species, infection and breeding regulation of the intermediate host of Trichobilharzia in the Huaihe River System.
目的探讨淮河水系毛毕吸虫中间宿主椎实螺种类、感染情况及繁殖节律。
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