Identification of True or False and Purity of Hybrid Rice with SSR Molecular Marker 利用SSR分子标记鉴定杂交水稻真伪与纯度
False hybrid rice seeds could be identified and excluded quickly and easily from the bar gene transgenic hybrid rice seeds by using gene transformation technology and spraying herbicide Basta. 利用水稻基因转化技术,将bar基因导入杂交水稻,结合除草剂Basta的喷施,能快速检测并排除杂交水稻制种中的假杂种。
Rapid capture of false code of DS/ FH hybrid spread spectrum communication systems DS/FH混合扩频系统伪码快捕技术
Simulation test of hybrid rice production demonstrated that the purity of hybrid rice would be improved greatly by using leaf colour as a marker to eliminate the false hybrid rice at early stage. 模拟杂交稻生产和制种繁种,表明利用苗期叶色标记结合人工去杂,可有效提高田间纯度。
Experimental results show that the false negative rate and the false positive rate of the hybrid system are both lower than the HMM based system. 实验结果表明该混合系统的漏报率和误报率都低于HMM方法。
In order to reduce the false numerical dissipation of the rotor wake vorticity, a new hybrid method based on the Navier-Stokes/ Free-Wake/ Full-Potential solver has been developed for the efficient prediction of the rotor flowfield. 为了减少旋翼尾迹的数值耗散,建立了一个基于Navier-Stokes方程/自由尾迹分析/全位势方程的旋翼流场求解的新的混合方法。
Morphological and Agronomic characters of the F1 hybrids of both crosses were observed. Finally advisable days after pollination for embryo rescue and "false" hybrid problem were discussed. 同时,还对F1代杂种的形态学和农艺学特性进行了观察,最后还讨论了提高杂交率的方法及伪杂种的问题。
The Study on Determining True and False Hybrid Rice ⅱ You 63 Using RAPD Molecular Markers 真、假杂交水稻Ⅱ优63的RAPD鉴定
In the process of cucumber seed production, the false hybrids formed by maternal self and sister across often bring a great loss to cucumber production, and the mixture of different varieties of cucumber hybrid seed is one of the most important factor to reduce the hybrids purity. 黄瓜制种过程中,除了母本自交和姊妹交形成的假杂种经常给黄瓜生产造成损失外,不同黄瓜品种种子的混杂也是造成杂交种子纯度降低的一个重要因素。