在植物方面，我们已有确实的证据，表明杂交物种的不育性一定是由于某种原理而起。
With plants we have conclusive evidence that the sterility of crossed species must be due to some principle.
以具广泛代表性的6个不育系和9 个恢复系及其配制的54 个组合为材料研究了现有籼型三系杂交水稻米质状况。
The grain quality of the existing three line indica hybrid rice was studied with widely used 6 A lines, 9 R lines and their 54 hybrids as the materials.
光温敏不育系不育性表达不稳定是近年来两系杂交水稻研究和应用中遇到的一大难题。
The meaning of ISE was defined; the complexity of fertility expression of PTGMS lines, the drift of critical sterility inducing tempera tu.
这个不育系的育性表现比较稳定，有可能用于无花粉观赏向日葵杂交种的生产。
Its sterility shows stable and is a potential recourse to produce pollen-free ornamental sunflower hybrid.
因此，杂交稻抗虫性的提高有赖于不育系的改良。
Thus, CMS lines are needed to improve insect pest resistance in hybrid rice.
以中国高粱胞质雄性不育系“吉农105”为研究试材，用9个常用高粱恢复系与之杂交，并对其杂种后代F 1、F2及BC1的育性分离比例进行了统计调查。
The separation of fertility in F1, F2 and BC1 from crosses between cytoplasmic male sterile line of Chinese sorghum "Jinong 105" and 9 restoring lines of sorghum were statistically analysed.
不育系在阜南和丽江早播高度不育甚至完全不育，有明显的育性转换期，可用于杂交制种。
The sterile lines can reach high sterility or complete sterility in Funan and Lijiang, they showed obvious fertility alteration, this two places can be used as selection area of sterile lines.
在杂交稻汕优63和协优9308上的若虫数量与TN1上的相当，杂交稻的感虫性主要来源于其不育系亲本。
Number of nymphs on the hybrids Shanyou 63 and Xieyou 9308 was similar with that on TN1. The super-susceptibility in the hybrids originated from the susceptibility of its parent of the CMS lines.
在杂交稻汕优63和协优9308上的若虫数量与TN1上的相当，杂交稻的感虫性主要来源于其不育系亲本。
Number of nymphs on the hybrids Shanyou 63 and Xieyou 9308 was similar with that on TN1. The super-susceptibility in the hybrids originated from the susceptibility of its parent of the CMS lines.
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