摘要
山楂盛花期喷布50—70ppm赤霉素溶液,能增加叶面积和比叶重,但叶片内叶绿素含量略低于对照。赤霉素处理能提高山楂叶片的光合速率,对提高山楂座果率、提高产量有一定作用。
Spraying 50-70 ppm of gibberellin on maythorn tree at full-bloom stage could increase leaf area and specific leaf weight but it made the chlorophyll content a little lower than ck. Treat with gibberellin could rise photosynthentic efficiency and percentage of fertile fruit and thus increase yield of maythorn.
关键词
山楂
叶片发育
光合速率
赤霉素
gibberellin
maythorn
photosynthentic efficiency
