吡虫啉在不同施药时间对玉米叶绿素含量的影响

The Effects of Imidacloprid on Maize Chlorophyll Contents at Different Application Times

对大田栽培作物玉米,在不同时间,用喷雾器喷施不同浓度杀虫剂吡虫啉,24h后测定玉米叶绿素和类胡萝卜素的含量。结果表明,上午喷施药剂促使玉米叶绿素含量增加最多,其次是中午,下午施药玉米叶绿素含量增加最小。

In the field, the leaves of maize were spayed the different concentrations of imida- cloprid at the different times. The contents of chlorophyll and carotenoid were tested at the 24th hour. The result showed that the chlorophyll content in maize increased differently effected by imidacloprid at different application times, content increased most by morning application, followed by noon, and least by afternoon application.