Effects of Imidacloprid Seed Coating Agent on Wheat Seeds Germination and Seedlings Growth and Related Physiological Mechanism
ZHANG Menghan
YANG Huanling
GUO Xianru
LEI Caiyan?
YAN Fengming
Abstract：In order to study the effect of imidacloprid seed coating agent on wheat and its physiological mechanism,the effect of different concentration of imidacloprid on wheat seed germination was firstly measured by sand cultivation. On this basis,the influences of imidacloprid on water absorption and activity of germination related enzymes of wheat seeds were determined through paper cultivation method. Be-sides, the influences of imidacloprid on seedlings growth and root activity were determined by sand culti-vation. Result showed that after imidacloprid coating,the seed emerging time was delayed,and the growth of underground part was reduced. Further results of physiological mechanism study showed that imidaclo-prid coating reduced the water absorption and activity of α-amylase and protease in the process of seed germination,however root activity was increased. This research indicated that the imidacloprid seed coa-ting agent delayed wheat seed germination by affecting water absorption and activity of enzymes related to germination;imidacloprid seed coating agent mainly affected the growth of the underground part of wheat, and by increasing the root activity seedlings adapted to the negative effects of imidacloprid on growth.
Keywords：seed coating agentimidaclopridwheatseed germinationseedling growthα-amylaseproteaseroot activity
Publication Date：2015-08-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：5( 76-79,91 )