Development of New Winter Wheat Growth Regulators
The winter wheat growth regulators in the series of substituted pyridylhydrazones were screened. The compound 4-methyl-2-chloro-6-{[1-ethyl-2-(4-nitrobenzylidene)]-hydrazino}-nicotinonitrile, which has a high growth stimulating activity has been found. According to the results of three-year field tests the substance shows a positive effect on the yield structure development, provides a significant increase in yield and improves grain quality.