论文部分内容阅读
为探明小麦生态雄性不育系ＥＳ－８，ＥＳ－１０和恢复系恢１７，８３－２的部分制种特性，１９９５～１９９６年度和１９９６～１９９７年度在长沙连续两个年度进行了制种试验．结果表明：利用ＥＳ－８，ＥＳ－１０进行制种，于９月底至１０月上旬播种，两年度均稳定不育．不育系和恢复系开花比较集中，单穗一日开花高峰期不育系为：８：００～１１：００，恢复系为９：００～１２：００，群体开花历期７～８ｄ，单穗开花历期４～５ｄ．就开颖状况而言，不育系ＥＳ－８优于ＥＳ－１０，ＥＳ－８在没有接受花粉条件下不闭颖，而ＥＳ－１０则明显存在“开颖－闭颖－再开颖”的过程，开颖后几分钟张颖角度达到最大值，并可以保持１～２ｈ，此时是接受花粉的最佳时期．不育系的柱头活力一般可以维持８～９ｄ，以开花后第４ｄ或第５ｄ柱头活力最强
In order to explore the partial seed production characteristics of ES-8, ES-10 and restorer restorer lines 17 and 83-2 in wheat, male sterile lines were planted in Changsha for two consecutive years from 1995 to 1996 and from 1996 to 1997 test. The results showed that seed production was carried out by using ES-8 and ES-10, and sowing from the end of September to the first ten days of last year, both of them were sterile. The CMS lines and restorer lines were relatively concentrated. The CMS lines at the peak flowering stage of one day were 8: 00-11: 00, the restorer lines were 9: 00-12: 00, and the population flowering period was 7-8 days. Spike flowering period 4 ~ 5d. In terms of openness, CMS-ES-8 was superior to ES-10, while ES-8 was non-shy when pollen was absent, while ES-10 clearly showed “open-closed- reopened” The process, a few minutes after the opening Ying Zhang reached the maximum angle, and can maintain 1 ~ 2h, this time is the best time to accept pollen. The stigma activity of sterile lines can generally be maintained for 8-9 days, and stigma vigor is the strongest at 4 days or 5 days after anthesis