论文部分内容阅读
我们在总结以往秋繁经验教训的基础上,去年试种43.1亩“威四一”不育系繁殖,获得平均亩产115.5斤,其中5.1亩,收种子752.5斤,折合亩产147.5斤。杂交水稻繁殖技术性强,要求高,必须有严格的科学态度,才能获得较高的产量。我们主要抓了如下几个环节: 1、选好田块。秋繁的特点是季节性强(前作有早稻,后期有寒露风的威胁),秧龄短,本田生育期短。为此,我们选择杨坂队门前沿公路的一片肥力较好,集中连片,
On the basis of summing up the experiences and lessons learned in the past, we tried to breed 43.1 mu of “Wei Si” sterile line last year and obtained an average yield of 115.5 kg, of which 5.1 mu and 752.5 kg of seeds were harvested, equivalent to 147.5 kg of mu per mu. Hybrid rice breeding technology is strong, demanding, there must be strict scientific attitude, in order to obtain higher yields. We mainly grasp the following aspects: 1, selected fields. Autumn is characterized by strong seasonal (early as early rice, the threat of cold dew late), short seedling age, Honda short reproductive period. To this end, we have chosen Yang Osaka team frontier road a better fertility, concentrated contiguous,