The unstability of cytoplasmic male sterility of Brassica napus L.

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作者：

宋文光

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任乐见

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来源：

华北农学报 | 1993年 / S2期

关键词：

Brassica napus L; cytoplasmic male sterility; unstable sterility; partial sterility type;

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摘要：

<正>The unstability of cytoplasmic male sterilities (CMS) of Brassica napus Lwas stud-ied from 1989 to 1992,and the results indicated: 1. The occurrence of trace-pollen plants In sterilematerials was caused by nuclear polygenes of the maintainers; 2. Progenies of partial sterility typeshowed segregation of sterile, partially sterile (with trace pollen )and fertile plants; 3. High andlow temperature CMS lines were crossed and its progenies manifested complex segregation; 4.There was a tendency to increase the fertility with successive selfing of the high temperatureCMS line.

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页码：40 / 44

页数：5