摘要
连续 3年在四川泸州自然光温条件下进行 1 1 0 3S春繁试验表明 :该两用系可以春繁 ,产量 90 3 .6～ 2 3 77.5kg/hm2 。繁殖产量的年度变化主要受育性转换温度敏感期所处的环境温度影响 ,敏感期日均温超过 2 3 .5℃ ,将严重影响春繁产量。分析泸州多年气象资料认为 ,将 1 1 0 3S的温度敏感期安排在 5月中下旬 。
Feasibility of the Seed multiplication of photoperiod (teperuature) sensitive genic male sterile Line 1103S was studied under natural sunlight and temperature conditions in spring season during 1994～1996.The yield of seed multiplication which was seriously reduced when daily mean Temperature of the sensitive stage of fertility change was above 23.5 ℃ was 903.6～2377.5 kg/hm 2 in Luzhou,South Sichuan Province.In order to increase the seed multiplicaton yield and its stability in spring season,it is desirable that 1103S’ sensitive stage of fertility change should be arranged during the middle and last ten-day period in May .
出处
《绵阳经济技术高等专科学校学报》
1999年第3期7-10,共4页
Journal of Mianyang College of Economy & Technology
基金
四川省水稻育种攻关后补助项目
