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当前位置: 首页 > 文章 > 不同土壤水分条件下北方枸杞抗旱性分析 北方园艺 2015 (11) 149-151
Position: Home > Articles > Study on Drought Tolerance of Lycium chinese Mill.var.potaninii(Pojark.)A.M.Lu Under Different Soil Water Status Northern Horticulture 2015 (11) 149-151

不同土壤水分条件下北方枸杞抗旱性分析

作  者：
安焕霞;王占林;贺康宁
单  位：
青海大学农林科学院;北京林业大学水土保持学院
关键词：
北方枸杞;土壤含水量;抗旱性
摘  要：
以盆栽的2年生北方枸杞为试材,采用土壤人工控水方式进行干旱生理试验,通过测定分析净光合速率、蒸腾速率、水分利用效率以及光饱和点与土壤含水量的相关性,研究北方枸杞抗旱性。结果表明:净光合速率、蒸腾速率与水分利用效率与土壤含水量的相关系数r分别为0.843、0.842和0.801;土壤水合补偿点为4.51%;净光合速率、蒸腾速率、光饱和点最高时的土壤含水量为分别为16.69%、19.04%和17.19%,因此,当土壤含水量控制在16.5%~19.0%时最适宜北方枸杞的生长。
译  名：
Study on Drought Tolerance of Lycium chinese Mill.var.potaninii(Pojark.)A.M.Lu Under Different Soil Water Status
作  者：
AN Huan-xia;WANG Zhan-lin;HE Kang-ning;Academy of Agriculture and Forestry Science,Qinghai University;College of Soil and Water Conservation,Beijing Forestry University;
关键词：
Lycium chinense Mill.var.potaninii(Pojark.)A.M.Lu;;soil water content;;drought tolerance
摘  要：
In this paper,2-year-old Lycium chinense Mill.var.potaninii(Pojark.)A.M.Lu was potted,in which the soil water levels were manually controlled in order to study their drought resistance by respectively observing and analysing the correlations between net photosynthetic rate,transpiration rate,water use efficienc,and light saturation point and and soil water content under different water levels.The results showed that the relative coefficients r between soil water content and net photosynthetic rate,transpiration rate and water use efficiency were 0.843,0.842 and 0.801respectively;the soil water aggregate compensation point was 4.51%;the soil water content were respectively 16.69%,19.04% and17.19% when net photosynthetic rate,transpiration rate and light saturation point were the highest,that was to say Lycium chinense Mill.var.potaninii(Pojark.)A.M.Lu would be in the best state when the soil water content was within the scope of 16.5%-19%.

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