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1.A Study on Mathematical Model of Effects of Applying Multipurpose-Zole in Young Panicle Differentiation Stage For Hynrid Seed Reproduction
关于杂稻制种幼穗分化期多效唑施用效果的数学模型研究收藏指正
2., Ethtopian rape (B. carinata Braun)and cabbage(B. oleracea L.) ; According that above, a proposal is put up about setting up isolated plot in the seed reproduction of Chinese cabbage.
杂交结角率、结籽率低,亲和能力弱的是芥菜(包括芥菜型油菜(B.juncea (L)Coss)、白芥(B.alpa Boiss)、阿比西尼亚油菜(B.carinata Braun)和甘兰(B.oleracla L)。据此,对大白菜繁种生产中隔离区的设置提出了建议。收藏指正
3.The tree will propagate themselves by the reproduction of their seed.
这些树将通过种子的再生而自行繁殖。收藏指正
4.The maximum reproduction yield can be gained when the female parent dentist is 11×104/667 m2.Spraying 2 g/667 m2 GA in 50% spikes presenting period is good to reproduction yield and the female outcross seed set.
当母本密度为11×104株/667 m2时,繁殖产量最高,抽穗50%时喷施2g/667 m2的赤霉素,对繁殖产量和母本异交结实都起一定的作用。收藏指正
5.Based on the above, the indicators for genetic erosion as the genetic structure changes of germplasm conservation due to social reasons, the indicators of genetic vulnerability as the genetic structure changes of germplasm conservation due to environmental stresses, the measurement of genetic drift and genetic shift as the genetic structure changes of germplasm collection during reproduction or seed increase were reviewed and developed.
探讨了人为条件导致植物种质资源遗传结构改变的遗传流失、环境胁迫所致植物种质资源遗传结构改变的遗传脆弱性和种子扩繁所引发的植物种质资源遗传结构改变的遗传漂变和遗传漂移等的统计指标。收藏指正
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