摘要
Abstract
Taking basil [Perilla frutescens (L.) Britt.] as the material,and modulating light sources with light emitting diode (LED),seven treatments were set for calibrating photosynthesis and fluorescence parameters of basil leaves,then the effects of different LED light qualities on photosynthetic characteristics of basil were studied.The results showed that the red/ blue/ yellow (3/1/1) lights could increase photosynthetic rate (Pn),stomatal conductance (Gs),transpiration rate (T r),photosynthetic performance index (PIABS),electron transport per excited cross-section (ETO/CS),maximal photochemical efficiency of the PS Ⅱ (ψPO),efficiency that a trapped exciton could move an electron into the electron transport chain beyond QA-(φO),and probability that an absorbed photon would move an electron into the electron transport chain beyond QA-(ψEO);and that RBY treatment promoted the PSⅡ activity of basil,and improved the utilization rate of light energy,while G and Y lights had a weakening effect.The solar energy utilization of basil under different light qualities was RBY＞RB＞CK＞B＞RBG＞R＞G＞Y.关键词
紫苏/光质/光合特性/品质Key words
basil [Perilla frutescens (L.) Britt.]/light quality/photosynthetic characteristics/quality分类
农业科技
