小豆的生长发育规律研究——Ⅵ.夏播小豆全株开花结荚序列性

研究表明,夏播小豆全株分枝有4—5级,并有多节分枝和单节分枝两类。全株开花具有严格的序列性:(1)直立型北京红小豆品种植株主茎中下部第6节上下首先开花,然后向上、向下、由内向外交替开放,半蔓性品种与此相似;(2)小豆开花量的时间分布近似常态分布,始花后7—24天为盛花期,13—18天内开的花结荚率较高;一天中上午8时以前开花较多,下午甚少;(3)全株中开花数较多的部位直立型北京红小豆为Ⅲ、Ⅳ、Ⅴ三层,半蔓型凤阳红小豆为Ⅲ、Ⅳ二层,蔓生型淮阴红小豆为Ⅳ一层。成荚数较多的部位北京红小豆为Ⅲ、Ⅳ二层,凤阳红小豆和淮阴红小豆均为Ⅳ一层。

STUDIES ON THE GROWTH AND DEVELOPMENT OF ADZUKI BEAN (Vigna angularis Ohwi and Ohashi) Ⅵ.Observation of the Blooming and Fruiting Arrangement on a Adzuki Bean Plant

The research shows that there are 4-5 grader of the summer Adzuki Pean and there are two branch patterns, they are multiple and single branching, the whole plant flowering har the strict order: 1. The erect stem Beijing Adzuki Bean variety flowers the first at the sixth joint of the part of the lower-middle stem, and then it flowers up and down, and the same time if flowers from inward to out- ward, the semi-triling type is the same as that. 2. The flowering time distribution of Adzuki Bean is an approxi- mate normal distribation. The full bloom period is after the early flowering 7-24 days, the pod setting rate of flower is the highest within 13-18 days. The flowering is more before 8 o'clock in the morming than it in the afternoon. 3. The flowering position of the whole plant is that the erect stem Beijing Adzuki Beam variety is at Ⅲ.Ⅳ.Ⅴ. layer, and the semitrailing stem Feng Yang Adzuki Bean variety is at Ⅲ. Ⅳ layer, the trailing stem Huai Ying Adzuki Beam is at Ⅴ layer. The most po sctting of Beijing Adzuki Bean is at Ⅲ & Ⅳ layer. Fung Yang and Huai Ying Adzuki Bean both are at Ⅵ layer.