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4—碘苯氧乙酸是一种生长刺激剂,关于它对大豆的增产效果,已经有所研究。但还存在着不同的看法。尤其对增产效果的生理特性方面的探讨尚嫌不足。过去,有关植物根系活力方面则有较多的研究。但4—碘苯氧乙酸对地下部根系活力及其合成功能的效果方面研究却不多见。本试验在1977年得知,在不同浓度的4—碘苯氧乙酸对大豆增产效果中,10PPm浓度最有效。因此在1980年着重研究10PPm浓度对大豆增产和一些生理特性方面的效果。特别着重探索其生理效果。两年的试验结果基本一致,为此,本文将着重讨论1980年的试验结果。
4-Iodophenoxyacetic acid is a growth stimulant and has been studied with regard to its effect on soybean yield. But there are still different opinions. In particular, to explore the physiological characteristics of stimulation effect is not enough. In the past, there have been more studies on the root activity of plants. However, the research on the effect of 4-iodophenoxyacetic acid on root activity and its synthetic function in the underground is rare. The experiment in 1977 that, in different concentrations of 4-iodophenoxyacetic acid soybean yield, the most effective 10PPm concentration. Therefore, in 1980, we focused on the effects of 10 ppm concentration on soybean yield and some physiological characteristics. With particular emphasis on exploring its physiological effects. Two years of test results are basically the same, this article will focus on the 1980 test results.