山东农业科学Issue(5)：23-26,4.DOI:10.14083/j.issn.1001-4942.2015.05.006
花青素型甘薯不同生长时期光合光响应特性研究
Study on Photosynthetic Light Response Characteristics of Anthocyanin-Type Sweet Potato in Different Growth Periods
摘要
Abstract
In this experiment , the photosynthetic light response and photosynthetic parameters of three anthocyanin-type sweet potato varieties , Yanzishu 2 ( Y2) , Yanzishu 3 ( Y3) and Japanese purple sweet po-tato ( RZ) , in different growth periods were studied .The results showed that the maximum net photosynthetic rate (Pnmax) of anthocyanin-type sweet potato as the largest in the initial root -enlargement period, and then rapid root -enlargement period , late root -enlargement period in order .The differences between different growth periods were significant ( P<0 .05 ) .The initial quantum efficiency (α) of latter root-enlargement period was much bigger than the initial value , but the light saturation point ( Isat ) was opposite.The differ-ences in light compensation point (Ic) and dark respiration rate (Rd) between different growth periods were not significant .Compared between different varieties , RZ had the highest αand R d in the rapid enlargement period of root, followed by Y2 and Y3;Y3 had the hightest Isat.In the late growth period, the Pnmax and Isat of RZ were all significantly higher than those of Y2 and Y3, but Rd of RZ was the lowest .关键词
花青素型甘薯/不同生长时期/光合光响应/最大净光合速率Key words
Anthocyanin -type sweet potato/Different growth periods/Photosynthetic light response/Maximum net photosynthetic rate ( Pnmax )分类
农业科技引用本文复制引用
张磊,刘维正,辛国胜,韩俊杰,商丽丽,邱鹏飞,林祖军..花青素型甘薯不同生长时期光合光响应特性研究[J].山东农业科学,2015,(5):23-26,4.基金项目
国家甘薯产业技术体系“烟台综合试验站”（ CARS－11－C－09－2014）；烟台市科技发展计划项目“甘薯新型高产、高效、轻简化覆膜栽培技术集成研究” （）
