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所谓雌蕊生活力,是指植物雌蕊成熟后接受花粉完成受精作用的延续时间。杂交水稻制繁种中,花期与花时能否相遇是制繁种产量高低的一个关键因素。对不育系雌蕊生活力的观察研究,有助于正确理解和掌握花期与花时相遇问题。一、试验材料与方法材料为不育系珍汕97A。在不育系抽穗后进行套袋,每天开花期过后进行隔离剪穗,把未开花与前几天已开花的颖花全部剪除,留下当天开的花作为试验材料,然后在开花后不同日期进行授粉,观
The so-called pistil vitality, refers to the plant pistils to accept pollen after fertilization to complete the continuation of time. In hybrid rice system, whether or not flowering and flowering meet each other is a key factor in the production of high-yielding varieties. Observing and studying the pistil viability of CMS will help to correctly understand and grasp the problems encountered when flowering and flowering. First, the experimental materials and methods The material is sterility line Zhenshan 97A. Bagging was carried out after heading stage of CMS, and the cuttings were cut off after the flowering period of each day. The non-flowering and the few flowering spikes of the previous few days were all cut off, leaving the flowers of the same day as the test materials, and then, on different days after flowering Pollination, concept