germplasm

Phylogenesis of 48 tobacco germplasms from different countries or regions was analyzed with amplified fragment length polymorphism (AFLP).

要利用AFLP技术，对48份不同类型和地域来源烟草种质亲缘关系进行了分析。

Abstract : It is difficulty to select and breed apomictic germplasm among diploid rices at present, but it has become a hotspot to select and breed apomictic germplasm among polyploid rices.

要 ： 目前，在二倍体平上选育稻无融和殖种质难度较大，而在多倍体平筛选稻无融和殖种质已成为稻无融和殖研究长点。