论文部分内容阅读
光周期敏感雌性不育苎麻 (PFSR)头、二、三麻均能成花 ,但头、二麻雌性败育 ,三麻雌性可育 ,雄性发育正常 ,年度间表现稳定。对其光周期特性研究分析表明 :(1) 6至 7月 ,PFSR雌性育性转换的临界日长在 13.0 h/ d至13.5 h/ d之间 ,败育发生早而彻底 ;(2 )经 SD+L D和 L D+SD处理 ,雌性表现为相邻节位间由可育到不育或不育到可育的跃变 ,雌性育性的光敏感期初步确定为花序分化期或花被形成期 ;(3)雌性发育期进行 3、 6、 9天的 SD(11h/ d)处理 ,表明雌性发育光敏感期持续日数为 3天或更短。
Photoperiod-sensitive female sterile ramie (PFSR) head, two, three hemp flowers, but the first and second maternity abortion, three Ma female fertile, normal male development, stable performance during the year. The results showed that: (1) From June to July, the critical day length of female fertility transformation in PFSR ranged from 13.0 h / d to 13.5 h / d, and abortion occurred earlier and more thoroughly. (2) SD + LD and LD + SD. The females showed the transition from fertile to sterile or sterile to fertile, and the light sensitive period of female fertility was initially identified as inflorescence differentiation or perianth (3) SD (11h / d) treatment of 3, 6 and 9 days of female development indicated that the duration of light-sensitive period of female development was 3 days or less.