水稻不育系“龙特浦A”简易穗选提纯技术

A Simple Panicle Selection Method for Purifying Rice Sterile Line Longtepu A

通过对水稻不育系“龙特浦A”自交结实规律的分析 ,提出了简易穗选提纯法 ,即在不育系“特A”原种繁育圃收割前 ,穗选性状典型、结实率高的“特A”、“特B”主穗 ,分别进行单晒单藏 ,作为原原种 ,供原种繁育田使用。本方法有效地提高了不育系原原种和原种的纯度 ,简化了提纯繁育程序 ,且原种用于制种后所收获的杂种一代种子纯度达到国家标准。

Based on the characters of self-fertilization of Longtepu A (short name as Te A), a rice CMS line, an effective panicle selection method was established as following: selecting the typical and high seed setting rate main culm panicle of Te A and Te B (maintenance line) should be carried out in multiplication field before harvesting the sterile line and maintenance line, respectively Selected panicles must be dried and stored separately, which were used as breeder's seeds for producing foundation seeds Using this method will increase the purities of rice sterile line Te A and simplified the purifying procedure and the purity of the hybrid F 1 seeds produced from purified Longtepu A seeds reached the national standard