52. 微量要素は 5-アミノレブリン酸 (ALA) の植物生長活性を促進する

概要

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5-Aminolevulinic acid (ALA) added to the Kasugais culture medium promoted growth of barley seedlings. Chlorophyll content and fresh weight of the seedlings decreased with an increase in ALA concentration in the culture medium which lacked Mg but increased when the medium lacked Fe. Kidney bean plants grown in pots were treated twice by foliar treatment with trace elements (Mg, Mn, B, Fe, Cu, Zn, Mo) with or without ALA (0.6ppm) and then grown under shading (50%) or non-shading conditions. The fresh weights of the plants, irrespective of shading, increased after treatment with trace elements plus ALA. The plants treated with trace elements and ALA grew normally and did not show spindly elongation under the shading conditions. Eggplants grown in a field were treated by soil treatment with trace elements with or without ALA (0.6ppm) at an interval of 10 days. The treatment with trace elements plus ALA resulted in an earlier harvest of eggplant fruits, and the number and fresh weight of eggplants increased by 20 and 15%, respectively.
植物化学調節学会の論文
2003-10-10