华北农学报Issue(z1)：172-176,5.
四个催花牡丹品种复壮栽培后光合特性比较
Comparative Studies on Photosynthetic Characteristics of Four Rejuvenation Growth Tree Peony Cultivars
摘要
Abstract
Photosynthetic characteristics of four rejuvenation-grown tree peony were studied comparatived with the LI-6400 portable photosynthetic analysis system before flower blossom .The result were as follows:Diurnal varia-tion of net photosynthetic rate ( Pn) in leaves of the four cultivars appeared a single-peak curve which occurring at a-bout 11:00,and Paeonia suffruticosa Zierqiao has a lower Pn than Paeonia suffruticosa Yinhongqiaodui ,which Pn was 10.52 μmol/(m2· s).There were different reasons for the decrease of four cultivars ,Pn:the main reason for Paeonia suffruticosa Wulongpengsheng and Paeonia suffruticosa Baiyuanhongxia was stomatal factor ,while a combi-nation of stomatal and non-stomatal factors caused the decrease of Pn in Paeonia suffruticosa Zierqiao and tree peony Paeonia suffruticosa Yinhongqiaodui.There was a significant difference in light saturation point (LSP),light com-pensation point(LCP)and appaent quantum yield(AQY) of the four cultivars.With the highest LSP and LCP,tree peony Zierqiao was 0 .020 3 mol/mol in AQY which was significantly lower than others ,showing a better adaptation to the weak light .关键词
牡丹/复壮栽培/光合特性Key words
Paeonia suffruticosa Andr./Rejuvenation growth/Photosynthetic characteristics分类
农业科技引用本文复制引用
石颜通,张秀新,薛璟祺,张盈..四个催花牡丹品种复壮栽培后光合特性比较[J].华北农学报,2013,(z1):172-176,5.基金项目
公益性行业科研专项（201203071）；北京园林绿化局项目（YLHH2010002-03）；农业部园艺作物生物学与种质创制重点实验室项目 （）
