ヤエムグラ種子の休眠覚醒作用に関する研究 : 第2報化学物質に対する種子の反応

概要

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In this present paper, the effects of some chemicals on the breaking of dormancy have been examined in cleaver seeds of which the ecological features, and the histological and physiological changes during dormancy were partially investigated. These results may produce the useful data for the development of the dormancy breaking chemicals and the establishment of reasonable weed control methods. 1) The NIP emulsion does not take any effect on the breaking of dormancy, but, when the seeds are soaked in NIP emulsion with 30℃, the rate of dead seeds in the treated seeds increases in a high degree, with increase of soaking terms of seeds and the concentration of NIP emulsion. Some diphenylether derivaties synthesized, however, have not much effect on the dormancy cleaver seeds. 2) Except gibberellic acid, the dormancy breaking chemicals that became generally known, for instance, kinetin and KNO_3 etc. can not have any effect on the breaking of dormancy and the death of seeds. 3) The gibberellic acid in a high concentration accelerates remarkably the breaking of dormancy in cleaver seeds in which the dormancy breaking by high temperature (30℃) have not been much promoted. We can guess that the gibberellic acid should not accelerate the germination, but impel a certain point in the metabolism of the breaking of dormancy.
日本雑草学会の論文
1967-12-25