热带作物学报2017，Vol.38Issue(10)：1784-1789,6.DOI:10.3969/j.issn.1000-2561.2017.10.003
不同施氮量对幼龄胡椒叶片碳代谢的影响
Nitrogen Rate on Young Pepper Metabolism of Carbon
摘要
Abstract
In order to evaluate the nitrogen (N) rate on pepper metabolism of carbon,an experiment was conducted with five N treatments in pots.The five N treatments named N1,N2,N3,N4 and N5 were 0,1,2,3 and 4 g/pot,respectively.Invertase (AI) activity,sucrose synthase (SS) activity,sucrose phosphate synthase (SPS) activity,soluble sugar content,starch content and nitrogen content of pepper leaves were measured to assess N rate effect on pepper metabolism of carbon.The results showed that appropriate N rate increased AI activity,SS activity,SPS activity,soluble sugar content and nitrogen content.However,insufficient N and excessive N rate reduced AI,SS,and SPS activity.The soluble sugar content of leavers was positively correlated with flowering time and flower spike.The starch content of leavers was negatively correlated with flowering time and flower spike.Therefore,during the flowering period,in order to promote early flowering and more flower spike of pepper,the content of soluble sugar in leaves should be increased by fertilization and other cultivation measures.关键词
施氮量/胡椒/碳代谢/生理特性Key words
Nitrogen rate/pepper/metabolism of carbon/physiological characteristics分类
农业科技引用本文复制引用
鱼欢,王灿,李志刚,杨建峰,祖超,郑维全..不同施氮量对幼龄胡椒叶片碳代谢的影响[J].热带作物学报,2017,38(10):1784-1789,6.基金项目
国家自然科学基金(No.31401940) （No.31401940）
中国热带农业科学院基本科研业务费专项(No.1630142017013). （No.1630142017013）
