植物营养与肥料学报Issue(3)：768-772,5.DOI:10.11674/zwyf.2014.0331
外源磷对西瓜生长发育过程中的几个生理生化指标的影响
Effect of exogenous phosphorus on several physiological and biochemical indexes in growth and development of watermelon
摘要
Abstract
In order to provide a theoretical basis for rational application of phosphate fertilizer , a sand culture experiment was conducted to study the change of several important physiological indexes at different growth stages of watermelon under different amounts of exogenous phosphorus .The results indicate that the chlorophyll value-SPAD values are decreased under the excess phosphorus at the vegetative growth period , and thus the crop photosynthesis is affected .The phosphorus deficiency symptoms are appeared at the seedling stage .The nucleic acid content of leaves is decreased at the flowering stage under the phosphorus deficiency , which means the growth and development of watermelon is inhibited if there is no sufficient exogenous phosphorus .The cellulose contents of stems are decreased under the excess supply of phosphate fertilizer , which results in plant resistance reduction . Different trends of the pectin contents at different growth stages are observed under different amounts of exogenous phosphorus .关键词
磷/西瓜/生长发育/生理生化Key words
phosphorus/watermelon/growth and development/physiological and biochemical indexes分类
农业科技引用本文复制引用
陈钢,洪娟,葛米红,张利红,叶莉霞,王素萍..外源磷对西瓜生长发育过程中的几个生理生化指标的影响[J].植物营养与肥料学报,2014,(3):768-772,5.基金项目
武汉市创新基金项目（ycx200901007）； IPNI中国项目（HuBei2011-I-1）资助。 （）
