ラツカセイの開花習性に関する研究

概要

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The flowering habit of an early peanut variety “Java” was studied. The results obtained were as follows: (1) The higher the node from which a branch arises, the later the 1st flower of the branch opens. The 1st flower of the main stem opens later than those of some lower branches. Flowers are born from the 1st node in the branches, but in the main stem the 1st flower is born at the 6th_??_8th node. (2) The flowers open indeterminately in each branch and in the stem. (3) The number of flowers which are born on one node tends to decrease from the lower nodes towards the upper nodes in each branch and in the stem, but there are some irregularities. One node bears 2 to 3 flowers in average and bears sometimes even about 10 flowers. (4) The flowering period of flowers of one node is fairly long. It is not seldom that the period ex-tends over more than one month. (5) Usually only one flower per day opens in one node, but sometimes two flowers and rarely three flowers open. (6) The number of nodes which bear flowers and the number of flowers of the stem are both much less than those of the lower branches. The number of flowering node and the number of flowers per branch are more numerous in lower branches than in higher ones, but among higher branches such tendency is more or less confused.
園芸学会の論文