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对每公顷产子棉12090kg超高产棉田(10-108-3、07-16)和每公顷产子棉6750kg的高产棉田(华棉)进行对比研究,揭示超高产棉田棉花生殖发育规律。结果表明:(1)超高产棉田棉花生殖器官发育具有明显前移的特点,整个生育进程前移7～9d;早现蕾,提前12d达到20个蕾以上;果枝早发,10-108-3、07-16比对照分别提前9d和6d达到10个果枝;结铃早,10-108-3、07-16提前6d进入铃期,比对照分别提前17d、30d达到平均6.5个铃;(2)超高产棉花2个品种具有2个成铃高峰,分别在7月14日和8月25日,到8月25日达到最高峰,平均成铃数分别为8.56个、8.6个,较对照多2.1个;(3)中下部果枝成铃率高于对照棉田,尤其是第4、5果枝,成铃率分别较对照高20%、25%。生殖发育规律研究为超高产品种选育及栽培管理提供了技术依据。
A comparative study on high yielding cotton fields (cotton) with 12090kg of super high yielding cotton (10-108-3,07-16) per hectare and 6750kg of cotton yielding per hectare revealed the law of reproductive development of cotton in super high yielding cotton. The results showed that: (1) The reproductive organs of cotton with super-high-yielding cotton had obvious advancement, and the whole process of procreation proceeded 7 ~ 9 days earlier; early budding reached 20 buds earlier than 12 days; early fruiting branches, 10-108-3 , Respectively, reaching 10 fruit branches 9d and 6d ahead of the control respectively. The bolls were as early as 10-108-3,07-16 and entered the boll stage 6 days earlier than the control, reaching an average of 6.5 bells at 30 days and 17 days respectively. (2 ) Two varieties of high-yielding cotton had two bells peaked at July 14, August 25 and August 25, respectively. The average number of bells reached 8.56 and 8.6, respectively, compared with the control 2.1; (3) The bolls of middle and lower fruit branches were higher than the control cotton fields, especially the fourth and fifth fruit branches. The boll rates were 20% and 25% higher than that of the control respectively. The study of reproductive development provides a technical basis for selection and cultivation of super high-yielding varieties.