论文部分内容阅读
以Ｗ６１５４Ｓ、Ｎ１２Ｓ、Ｎ１５Ｓ、Ｎ２１Ｓ、Ｎ３０Ｓ５个不育系为材料，于８月下旬及１０月上旬进行了开花习性的观察，结果表明：１．穗开花所需时间一般５～７ｄ，可育比不育短。一穗的盛花期可育时都分布在前期，不育时则因不育系不同差异较大。２．不育系的日开花动态受育性和环境的影响，主要表现在开花的高峰时段、峰值、花时集散及日开花朵数等方面。３．不育系的开颖角度和柱头外露率有的受育性和环境影响明显，有的不明显，有的只受育性影响。４．各不育系的开颖时间受环境影响差异很大，在同一环境里不育系都表现不育比可育开颖时间长。
The flowering habits of W6154S, N12S, N15S, N21S and N30S were studied in late August and early October. The results showed that: 1. Spike flowering time is generally 5 ~ 7d, sterile than sterile. A spike of the flowering period of fertility are distributed in the early period, infertility due to different male sterile larger. 2. The dynamic fertility and environmental impact of the daily flowering of CMS lines are mainly reflected in the peak flowering period, peak value, flowering time and the number of flowering flowers. 3. Male sterile lines open angle and Stigma exposed some fertility and environmental effects are obvious, some not obvious, and some are only affected by fertility. 4. Each sterility line open time is greatly affected by the environment, in the same environment sterile lines are sterile than open-minded for a long time.