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主要概述了我国木薯种质的开花习性，同时对不同时段授粉的稔实率，不同种质作为亲本的稔实率进行了统计分析。结果表明．在１２：３０～５：３０的时间范围内进行杂交授粉均获得正常的结实率；不同种质作为父本．它们的广义亲和力均无明显差异．也就是说不同的种质正常的花粉均具有广泛的亲和性；不同的种质作为母本．其稔实率呈极显著差异．从而说明了它们的广义亲和力有很大的差异．其中稔实率最高的种质是文昌红心．其次为ＳＭ６１０－２和ＣＭ４０４Ｏ－１．稔实率均达４０％以上．是理想的母本材料。
This paper mainly summarized the flowering habits of cassava germplasm in China. At the same time, statistical analysis was conducted on the real rate of pollination and the rate of real germplasm of different germplasm as parents. The results show. In 12: 30 ~ 5: 30 time range hybrid pollination were normal seed setting rate; different germplasm as a male parent. There is no obvious difference in their generalized affinity. In other words, different varieties of normal pollen have a wide range of affinity; different germplasm as the female parent. The real rate was significantly different. Which shows that their generalized affinity is very different. Among them, the highest germplasm was Gerong heart. Followed by SM610-2 and CM404O-1. Real rate reached more than 40%. Is the ideal maternal material.