杂交分有性杂交和无性杂交,这两种方法在我国古代的应用都是相当突出的.

The application of both methods of hybridization - sexual and asexual - is remarkable in ancient China.

采取无性与有性杂交相结合的方法克服杂交不孕.

The hybridization method of asexuality combined with sexuality was used to overcome the infertility after hybridization.

利用体细胞杂交技术,可以克服传统的有性杂交遇到的诸多育种障碍,加速烟草品种选育进程.

Somatic hybridization technique can overcome some difficulties in traditional breeding and shorten breeding period in tobacco.

常规有性杂交很难获得油菜与芸芥的属间杂种。

It is difficult to obtain the intergeneric hybrid between Brassica napus and Eruca sativa through the routine crossing.

本研究结果表明，三倍体在柑橘的有性杂交育种中可用作母本进行新种质的创造。

These results revealed that triploid plants could be used as maternal parents in sexual crossing to create novel citrus germplasm.