干旱胁迫对草莓光合特性的影响  

Effect of Drought Stress on the Photosynthesis Characteristic of Strawberry

作　　者：徐金娥[1] 陈静[2] 

机构地区：[1]保定学院继续教育部,河北保定071000 [2]保定学院学报编辑部,河北保定071000

出　　处：《保定学院学报》2008年第2期35-37,共3页Journal of Baoding University

摘　　要：以草莓品种"图特拉"为试材,用珍珠岩、蛭石、消毒鸡粪按1∶1∶1配制栽培基质.分别给予不同干旱程度(土壤相对含水量分别为80%,60%,40%,20%)处理.结果表明:土壤含水量为80%和60%的草莓植株的光合速率(Pn)较高,光合日变化的"双峰"和"午休"现象较明显;含水量为40%时植株的Pn有"双峰"和"午休"现象,但Pn值有所下降;20%水分处理植株的Pn较低,"双峰"现象不明显.The test material is strawberry varity Tudla.Mixing vermiculite, chickenfeces and pearlite under pro rata 1：1：1 for culture medium. Strawberry＇s photosynthesis responsed to different arid degree （relative water content is 80%, 60%,40%, 20% ）. The result indicated that 60 % and 80 % relative water content strawberry＇s Pn is high,their ＂split-blip＂ and ＂the midday rest＂ phenomenon is obvious. 40% relative water content strawberry＇s Pn has ＂split-blip＂and ＂the midday rest＂ phenomenon,but the photosynthesis speed has droped. 20% relative water content strawberry＇s Pn vanish ＂split-blip＂ phenomenon, photosynthesis nearly stop.

关 键 词：草莓 干旱胁迫 光合特性 

分 类 号：Q945.11[生物学—植物学] S668.4[农业科学—果树学]