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利用目前国内两个较好的光 (温 )敏核不育系培矮 6 4s和N4 2 2s与国际水稻所选育的新株型稻、华北育成粳、东北育成粳、南亚Aus稻、南方育成早、中籼稻杂交 ,考查F1的产量及产量构成因素。发现新株型稻与偏籼型的培矮 6 4s配组在实粒数、单株穗数和单株粒重方面有些优势 ,但结实率偏低 ,如果把结实率的问题解决好 ,则新株型稻在我国的籼粳两系杂交稻育种中将有较好的应用价值
At present, two new plants of light-sensitive genic male sterile lines, Pei’ai 6 4s and N4 2 2s, and new rice plants selected from International Rice, Yucai Japonica of North China, Yucheng Japonica of Northeast China, Aus Rice of South Asia, Early, mid-indica hybrids, to test F1 yield and yield components. The results showed that the new plant-type rice and the indica-type Pei’ai 6 4s group had some advantages in terms of seed number per plant, panicles per panicle and grain weight per plant, but the seed setting rate was low. If the problem of seed setting rate was solved, the new plant Paddy rice in our two-line hybrid rice indica and japonica hybrid rice will have a better value