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The effect of plant growth regulators
Jul 09, 2018

Plant growth regulators are the products of the comprehensive development of organic synthesis, microanalysis, plant physiology and biochemistry, and modern agroforestry and horticultural cultivation. In the 20~30 years of twentieth Century, trace natural plant hormones such as ethylene, 3- indoloacetic acid and gibberellin were found in the plant, which could control growth and development. By 40s, the study of synthetic analogues began to be developed. 2, 4-D, amine fresh ester (DA-6), chloride, sodium nitrate, NAA, and suppressan were gradually developed and used to form a category of pesticides (see table). More and more plant growth regulators have been synthesized artificially over the past 30 years. However, because of the complex application technology, their development is not as fast as insecticides, fungicides and herbicides, and the scale of application is small. However, according to the needs of agricultural modernization, plant growth regulators have great potential for development, and the trend of accelerated development in 80s.