Full TGIF Record # 237709
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Web URL(s):http://cyxb.lzu.edu.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=3063
    Last checked: 02/11/2016
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Author(s):Du, Jian-xiong; Hou, Xiang-yang; Liu, Jin-rong
Author Affiliation:Du: College of Grassland, Gansu Agricultural University, Lanzhou and School of Resources and Environmental Management, Guizhou College of Finance and Economics, Guiyang; Liu: Key Laboratory of Technology, Lanzhou University, Lanzhou; Hou: Grassland Research Institute, Chinese Academy of Agricultural Science, Huhehaote, China
Title:A study on physiological response to drought and re-watering treatments in Kentucky bluegrass
Source:[Caoye Xuebao] [Acta Prataculturae Sinica]. Vol. 19, No. 2, April 20 2010, p. 31-38.
# of Pages:8
Publishing Information:[Lanzhou Shi, China]: ["Cao Ye Xue Bao" Bian Ji Wei Yuan Hui]
Abstract/Contents:"The morphology, water physiology, and carbon allocation responses of cool-season turfgrass to drought stress and re-watering treatments were studied. Three cultivars (Prize, Nuglade, and Midnight) of Kentucky bluegrass (Poa pratensis), were tested under drought and re-watering treatments to determine the changes in turf quality, leaf relative water content (RWC), total nonstructural carbohydrate (TNC) content and 14C allocation in different organs. Drought stress caused a significant decline in turf quality and leaf RWC, which varied with cultivar and treatment time. After re-watering, turf quality and leaf RWC recovered to different degrees, especially in Prize. At the early stages during drought stress, 14C allocation to the roots increased significantly for all cultivars. After 14 d drought stress, 14C allocation to different organs in the three cultivars was roots > shoots > leaves. With prolonged drought stress, some 14C in the roots moved into the shoots and leaves, resulting in a marked increase of 14C allocation to the shoots and leaves. After 21 d re-watering, 14C allocation in the three cultivars was shoots > leaves > roots. During the drought stress, TNC accumulation in the roots, shoots, and leaves of the three cultivars continually changed and was in the sequence leaves > shoots > roots. After re-watering, the TNC content in the leaves, shoots, and roots of all three cultivars was lower than that under drought stress, but still in the same order. This suggests that the allocation of carbon assimilates and their accumulation in different organs of turfgrasses were a physiological adaptation response to drought and re-watering treatments and provides a scientific basis for further investigating the resistance of turfgrass to other adverse environments."
Note:Abstract also appears in English
"Sum No. 85"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Du, J.-x., X.-y. Hou, and J.-r. Liu. 2010. A study on physiological response to drought and re-watering treatments in Kentucky bluegrass. (In Chinese) [Caoye Xuebao] [Acta Prataculturae Sinica]. 19(2):p. 31-38.
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DOI: 10.11686/cyxb20100205
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    Last checked: 02/11/2016
    Requires: PDF Reader
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