果树学报2011，Vol.28Issue(4)：657-661,5.
不同氮素水平对西瓜幼苗生长及叶绿素荧光特性的影响
Effect of nitrogen on watermelon seedling growth and chlorophy11 fluorescence parameters of watermelon leaves
陈钢 1黄翔 1张利红 1洪娟 1葛米红 1陈涛 1周谟兵1
作者信息
摘要
Abstract
The sand culture was used to investigate the changes of watermelon seedlings growth and chlorophyll fluorescence parameters of ZaoChunHongYu after the application of different concentrations of nitrogen.The results showed that the dry matter accumulation of watermelon seedlings was the biggest under the treatment of nitrogen 16.67 mmol·L-1.Fo reduced to the minimum,Fv/Fo and ΦPSⅡ increased to the maximum,but Fv/Fm did not show obvious change when nitrogen supply was from 16.67 mmol·L-1 to 20.83 mmol·L-1.From the whole change,qN varied stronger than qP which rised up first and then fell down as the nitrogen increased,but the change of qN was opposite.The results suggested that the application concentration of nitrogen from 16.67 to 20.83 mmol·L-1 could improve the watermelon seedling photosynthesis and growth,but more or less N could inhibit the seedling growth.关键词
西瓜/氮素/叶绿素荧光/生长Key words
Watermelon/Nitrogen/Chlorophyll fluorescence/Growth分类
农业科技引用本文复制引用
陈钢,黄翔,张利红,洪娟,葛米红,陈涛,周谟兵..不同氮素水平对西瓜幼苗生长及叶绿素荧光特性的影响[J].果树学报,2011,28(4):657-661,5.
