GA_3和PP_(333)对萝卜生长及产量的影响  

Study on the Influence of GA_3 and PP_(333) on the Growth and Yield of Radish

作　　者：应冬勤[1] 陈旦蕊[1] 苏士法[1] 郑春明[1] 

机构地区：[1]台州科技职业学院,浙江黄岩318020

出　　处：《中国农学通报》2007年第6期363-370,共8页Chinese Agricultural Science Bulletin

摘　　要：通过研究不同浓度的GA_3和PP_(333)及两激素不同浓度的互作对萝卜叶面积、叶重量、叶子叶绿素含量及根冠比的影响。结果表明,两者对叶子叶绿素含量没明显影响,但GA_3在促进叶子的生长,叶面积的增大上以10～30ppm效果最好,而PP_(333)虽然能抑制叶子的生长,但在肉质根生长中后期试用50ppm浓度的PP_(333),抑制了叶子的生长,反而促进了光合产物输送到肉质根,起到增产的作用。适当浓度的GA_3和PP_(333)及两者结合增产效果明显。Abstract： Radish was used as material for testing the effect of different concentration treatment of GA3 and PP333 on the contents of leaf area, leaf weight, leaf chlorophyll content and root/top ratio. The results showed that GA3 has no effect on the leaf chlorophyll content. 10-30ppm of GA3 had the best effect on leaf growth and leaf area. 50ppm of PP33a used in later stage of root growth can promote transportation of photosynthetic product to the root. Suitable concentration of GA3 and PP3n has a remarkable effect on increasing production.

关 键 词：萝卜 叶面积 叶重量 叶绿素 肉质根重 根冠比 

分 类 号：S63[农业科学—蔬菜学]