不同类型抗蒸腾剂对4种草本植物叶片水分利用效率的影响
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为探究3种抗蒸腾剂叶片喷施对4种草本植物水分消耗和利用的影响规律,比较得出不同抗蒸腾剂的最佳使用浓度,为干旱荒漠区采煤迹地植被保育技术提供参考,本试验以蒙古冰草、沙打旺、白花草木樨、蜀葵4种草本植物为研究对象,每种草叶面分别喷施不同类型和浓度的抗蒸腾剂:旱地龙(FA)、冠存(GC)、高岭土(KL),以喷施清水为对照,喷施3个月后测定其对4种草叶片蒸腾速率(Tr)、净光合速率(Pn)、水分利用效率(WUE)和生物量的影响。
To investigate the effects of foliar spraying of three anti-transpirants on water consumption and utilization of four herbaceous species, compare and determine the optimal application concentrations of different anti-transpirants, and provide references for vegetation conservation technologies in coal-mining disturbed areas of arid desert regions, this experiment took four herbaceous species, namely Agropyron mongolicum, Astragalus adsurgens, Melilotus albus and Alcea rosea, as the research subjects. Foliar spraying of different types and concentrations of three anti-transpirants, including Hanlongdi (FA), Guancun (GC) and kaolin (KL), was performed on each species, with spraying of clear water as the control. Three months after the spraying treatment, the impacts of these treatments on leaf transpiration rate (Tr), net photosynthetic rate (Pn), water use efficiency (WUE) and biomass of the four herbaceous species were measured.




