机构地区: 宝鸡市农业科学研究所
出 处: 《西北农业学报》 2003年第4期71-74,共4页
摘 要: 对杂种小麦西杂一号制种中使用外源激素NAA对异交结实率的影响进行了研究,结果表明,合理喷施NAA能不同程度地提高西杂一号制种母本的异交结实率。NAA的喷施时期为母本见穗5%,喷施量以100~150g/hm2为宜。研究还表明,NAA对异交结实率的作用主要是通过影响柱头活力来实现的。 Effect of NAA(naphthalene acetic acid) on cross seed set had been studied during the seed producton of hybrid wheat XZ1 in this experiment. The results showed that: The cross seed set of hybrid wheat XZ1 could be increased in some extent by the external application of NAA is a kind of plant growth regulator. The stage of spraying NAA was in 5% spikes presenting period. The dosage was 100~150 g/hm^2.
关 键 词: 杂种小麦 西杂一号品种 制种技术 外源激素 异交结实率
领 域: [农业科学]