早稻种子在晚季栽培,俗称翻秋。翻秋的意义主要是缩短育种年限,加速良种繁殖和复壮品种。对于后者,即翻秋的种子后代生活力高,抗逆性强,产量增加等,这已被人们普遍接受。但作为翻秋的种子,通常有先年早季生产的,也有当年生产即收即用的,这两种种子翻秋,及其后代栽培的丰产性有何差异,作者对这一问题进行了对比种植试验,新种子翻秋较陈种子翻秋,亩增15公斤,未达显著水平,新种子翻 Early rice seeds are cultivated in late season, commonly known as turning autumn. The significance of turning autumn is to shorten the breeding period and speed up breeding and rejuvenating varieties. For the latter, that is, the seeds of the fall progeny have high vitality, strong resistance and increased yield, which have been generally accepted. However, as a seed for turning autumn, there are usually early-season production in the first year and instant production in the same year. The difference between the two kinds of seeds turned autumn and the high-yield cultivation of their offspring was carried out by the author Compared with the planting experiment, the new seed turned autumn and turned Chen autumn seed, increasing 15 kg mu, which reached the level of significance. The new seed turned