论文部分内容阅读
晚熟大豆品种自贡冬豆出苗后进行8～10d短日照(12h)处理,尔后置长日照(>15h)下,可诱导顶端花序的产生,但花序的上部因短日照后进行的长光照处理而形成茎,花序中部少数花芽原基转而分化营养芽。这是长光照诱导的花序逆转和花逆转现象在大豆中的首次发现。已经短日诱导正常开花的自贡冬豆植株转移至长日照下时,原有花荚大部分脱落,不定芽大量发生,恢复到以营养生长为主的状态。本文将此种现象称为整株逆转(overall reversion)一植物开花逆转现象的一种新类型。大豆开花逆转现象的发现,对于研究大豆个体发育规律和结荚习性的形成具有一定意义,并可望建立植物光周期反应机制研究的实验材料系统。
The late-maturing soybean variety Zigongdongdou was treated with short-day (8h-10d) treatment after emergence for 8-10 days, and then the top inflorescence was induced under long-term sunlight (> 15h). However, the upper part of the inflorescence was long- Formation of stems, inflorescence central part of a small number of flower buds turn differentiation nutrition buds. This is the first discovery in soybean that the long-light-induced inflorescence reversal and flower reversal phenomenon. Zigong winter bean plants that had been normal flowering for a short time induced the plants to migrate to long sunshine. Most of the original flower pods were mostly exfoliated and adventitious buds occurred in large numbers, returning to the state of vegetative growth. We refer to this phenomenon as a new type of overall reversion-a plant flowering reversal phenomenon. The discovery of flowering reversal in soybean is of great significance for the study of the developmental rules and the pod habit of soybean, and it is expected to establish an experimental material system for studying the photoperiodic response mechanism of plants.