优质野败不育系美A测配研究

Studies on Testcross Combining of high quality WA-Type CMS line Mei A

用7个籼稻恢复材料与美A测配,观察杂种F1的表现。结果表明,所配的7个组合米质都比博优253提高1-2个档次,4个组合比博优253增产5%以上,6个组合的生育期比博优253短。

Seven indica rice restore materials were selected to combine with the CMS line Mei A and observed these F1 hybrids. The results are as following： the grain quality of seven combinations weu all better than that of the control Boyou253 1 -2 grades, among them, 4 combinations of grain yields weu 5 % higher than that of the control, 6 combinations of growth durations weu shorter than that of the control.