南方农业学报2013，Vol.44Issue(5)：788-792,5.DOI:10.3969/j:issn.2095-1191.2013.5.788
根际交替灌溉技术对荔枝生长及光合作用的影响
Role of partial rootzone drying in the growth and photosynthesis of litchi (Litchi chinensis Sonn.)
摘要
Abstract
[Objective]The research was aimed to provide references for applying partial rootzone drying (PRD) to the production of Nandao seedless litchi(Litchi chinensis Sonn cv Nandao seedless fruit).[Method]Mature Nandao seedless litchi trees were treated by normal irrigation (the control),partial rootzone drying (PRD) and half quantity of normal irrigation (HN).Subsequently,tree growth,fruiting and photosynthesis were observed and compared.[Result]The growth amount of shoots of PRD was significantly lower than that of the control,and higher than that of HN.The yield of individual tree among three treatments was totally different.The yield of PRD was the highest and HN was the lowest.The content of soluble sugar and Vc of PRD was sensibly higher than that of the other two treatments.The contents of chlorophyll a and chlorophyll b,the photosynthetic rate,the net photosynthetic rate of leaves of PRD,and the ratio of chlorophyll a/b of leaves of PRD after 14d reached the highest.The content of carotenoid in leaves of PRD was not different from that of the control.[Conclusion]The yield of PRD was the highest,and the integrated performance in fruit qualities of PRD was the best.PRD could enhance the photosynthesis of leaves.关键词
根际交替灌溉(PRD)/南岛无核荔枝/生长/结果/光合作用Key words
partial rootzone drying (PRD) / Nandao seedless litchi/ growth / fruiting/ photosynthesis分类
农业科技引用本文复制引用
贾文君,万景刚,徐冰,何欣,王永梅,周开兵..根际交替灌溉技术对荔枝生长及光合作用的影响[J].南方农业学报,2013,44(5):788-792,5.基金项目
海南省教育厅高等学校科学研究项目(Hjkj2011-14) （Hjkj2011-14）
