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首页> 外文会议>Conference on key technology of horticulture >Effect of Water Stress on Leaf Photosynthesis Characteristics and Water Use Efficiency in Jujube in Tarim Basin
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Effect of Water Stress on Leaf Photosynthesis Characteristics and Water Use Efficiency in Jujube in Tarim Basin

机译：水分胁迫对塔里木盆地枣叶片光合作用特征及水利用效率的影响

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摘要

The current study investigated the effect of water stress on photosynthesis characteristics and water use efficiency of Jujube in extreme arid condition, a field study was conducted in the drip irrigated Jujube in Xingfucheng farm, South Xingjiang China. Four water supply treatments consisted of (Wl) moderate water stress at 260 m3/667m2, (W2) light water stress at 320 m3/667m (W3) appropriate water at 380 m3/667m2, and (W4) sufficient water at 440m3/667m2. A portable LI-6400 photosynthesis system was used to determine Pn, Tr, Gs, Ci, Ta, Ca, RH, PAR and Jujube leaf WUE at August 8, 2010. PAR, RH, Ta and Ca differed significantly amongst four water treatments at 0.01 level; Pn differed significantly amongst four water treatments at 0.5 level, whereas there was no difference in Tr. Compared with W3, the WUE of Wl, W2 and W4 differed significantly, the WUE of W2 treatment increased 2.65%, whereas Wl and W4 treatments decreased 14.90 and 18.20% respectively. The result indicated that Jujube can adapt to extreme arid condition, and the proper water amount of drip irrigation was about 320m3/667m2.
机译：目前的研究调查了水分胁迫对枣在兴江省邢福城农场的滴灌枣进行了枣枣的光合作用特征和水利用效率的影响。四种供水处理包括（WL）260m3 / 667m2，（W2）在320m3 / 667m （W3）的低水分胁迫下，在380m3 / 667m2的适当水，（W4）440m3 / 667m2。在2010年8月8日，使用便携式的Li-6400光合系统来确定PN，TR，GS，CI，TA，CA，RH，PAR和Jujube叶与Jujube Leaf Wue。Par，Rh，Ta和Ca在四种水处理中有显着差异。 0.01级;在0.5级的四种水处理中，PN显着不同，而TR没有差异。与W3相比，WL，W2和W4的WUE显着不同，W2治疗的WUE增加2.65％，而WL和W4治疗分别下降14.90％和18.20％。结果表明，Jujube可以适应极端干旱状况，滴灌灌溉的适当水量约为320m3 / 667m2。

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