论文部分内容阅读
叶面喷施赤霉素是杂交水稻制种必不可少的增产措施。国际水稻研究所进行赤霉素代用品的研究认为,1.5%硼酸或1.5～2%尿素均可替代赤霉素[见《种子》1989( 3)]。我区对此进行了验证试验,结果表明,喷2%尿素或2%硼酸,以及2%尿素加2%硼酸,与喷14克/亩赤霉素相比,不育系包颈多0.84-3.
Gibberellin foliar spray is an indispensable hybrid rice seed production measures. Studies by the International Rice Research Institute on gibberellins have suggested that 1.5% boric acid or 1.5-2% urea can replace gibberellin [see Seeds 1989 (3)]. My area has conducted a validation test, the results showed that spraying 2% urea or 2% boric acid, and 2% urea plus 2% boric acid spray 14 g / g gibberellin compared sterile line package neck 0.84- 3.