论文部分内容阅读
分析籼稻两用核不育系 W6154S 和 W6184S 的生育特性.在3月30～6月10日期间,播期的迟早与播始天数呈线性关系,6月10日以后播种,播始天数基本稳定;这两个不育系在播始期间的活动积温与播始天数亦呈线性关系.建立了反映上述两种线性变化的回归方程.讨论了这些回归方程在确定亲本播种期时的利用.
The fertility characteristics of indica rice dual-purpose nuclear lines W6154S and W6184S were analyzed.The relationship between sowing date and sowing date had a linear relationship between March 30 and June 10, and sowing date after June 10 was basically stable The linear relationship between the accumulated accumulated temperature and the number of days of initiation of the two sterile lines during the initiation period was also established, and the regression equation reflecting the above two linear changes was established. The utilization of these regression equations in determining the sowing date of the parents was discussed.