摘要
采用5种方法测定杂交水稻特优63、汕优63、协优57、协优63和特优559等新种子活力，结果表明：不同组合间种子活力存在显著差异，幼苗生长测定和加速老化试验的简化活力指数均与种子田间成苗率存在显著正相关。本试验认为，杂交水稻种子活力的差异主要是由于遗传因素所致，其次与种子形成的生态条件等有关，选用幼苗生长测定结合加速老化试验，综合判定种子活力水平是较为准确的。
The seed vigor of several hybrid rice crosses Teyou 63、Shanyou 63、xieyou 57、 Xieyou 63 and Teyou 559 was tested by five methods. The results showed that there was significant difference between different crosses. A significant positive correlation was found between simplified vigor index and the rate of seedling both in seedling growth test and in ageing test. According to this study, the difference of seed vigor between hybrid rice crosses was decided mainly by hereditary factor, secondly by ecological conditions during seed forming. The seedling growth test, along with ageing test, could accurately determine the seed vigor.
出处
《种子》
CSCD
北大核心
1998年第2期7-10,共4页
Seed
基金
安徽省教委资助
