Effect of Drought Stress on Growth and Water Physiological Characteris­tics of Poa sibirica  

作　　者：Zhang Cui-ting Xie Fu-chun Yin Hang Zhang Gao-yun Guo Zhi-xin Zuo Yang Zhao Wei Shah Saud Chen Ya-jun 

机构地区：[1]College of Horticulture and Landscape Architecture,Northeast Agricultural University,Harbin 150030,China [2]College of Animal Sciences and Technology,Northeast Agricultural University,Harbin 150030,China

出　　处：《Journal of Northeast Agricultural University(English Edition)》2021年第1期24-30,共7页东北农业大学学报（英文版）

基　　金：Supported by the National Natural Science Fundation of China(31971772,31772354,31372091);College Student Innovation and Entrepreneurship Training Program of China(201910224035)。

摘　　要：In order to develop the resources of native turfgrass,the morphological traits and drought resistance of native Siberian bluegrass(Poa sibirica,abbreviated as PS)was evaluated using the introduced Kentucky bluegrass'Midnight'(Poa pratensis,abbreviated as PP)as a control.Two water schemes were imposed to plants in this pot culture study in greenhouse.One was with drought stress persistent limiting water supply for 20 days,the other was re-hydrated until 14 days after drought.The leaf shape,turf color,water status and cell plasma membrane permeability were evaluated.Similar changing trends with these parameters were shown for both species,and there were not significant differences with most evaluations during drought and re-water periods.The values leaf width and length of PS were higher while leaf color intensity was slightly lower than that of PP,but the greenness of PS leaf was still visually acceptable.There were not significant differences with cell membrane stability between the two species.In comparison,the native wild species PS possessed the potential for to be domesticated into a new cultivar for turf industry.

关 键 词：TURFGRASS DROUGHT morphological characteristics water status cell membrane permeability 

分 类 号：S543[农业科学—作物学]