%0 Journal Article
%T "Effects of Drought Stress on Growth of Mulberry (Morus alba L. ) Trees in the Hydro-Fluctuation Belt of the Three Gorges Reservoir Area"
%A HUANGXiao-hui
%A YINXiao-hua
%A LIUYun
%A LIJia-xing
%A XIONGXing-zheng
%A CHENYang
%J 重庆师范大学学报(自然科学版)
%P 151-155
%D 2012
%R 10.11721/cqnuj20120327
%X "Toexaminepossibleeffectsofsoilwaterconditionsinsummerinthehydro-fluctuationbeltoftheThreeGorgesReservoirAreaonmulberry,wegrewpottedmulberryinagreenhouseunderthreesoilwaterregimesdesignedtosimulatenormalirrigation(CK),moderatedroughtstress(T1)andelevateddroughtstress(T2).Theresultsshowedthefollowing.1)Withdroughtstressincreasing,theheights,basediameters,androotsurfaceareasofmulberrytreesdecreasedsignificantlyrelativetothecorrespondingearlierperiod.Theroot/shootratioincreasedgraduallyintheearlierstage,anddecreasedgraduallyinthelaterstage.Thespecificrootareaofmulberrytreesonthewholeincreasedsignificantlyrelativetothecorrespondingearlierperiod.2)Withtheelongationoftreatmenttime,thegrowthofmulberryseedlingsdecreasedgradually,andtheheights,basediameters,rootsurfaceareaandroot/shootratioofthemulberrytreesinthethreetreatmentgroupsincreasedtodifferentdegrees.Thespecificrootareaofmulberrytreesonthewholedecreasedgradually.Weconcludedthatunderthedifferentdegreesofdroughtstressthegrowthofmulberrytreeswouldbeinhibited,buttheplantswerealsoabletoadapttothestress,therebymaintainingphysiologicalandmetabolicviability.Biomassappearedtobere-allocatedsuchthatwaterabsorptioncapacitywasimproved.Accordinglyitcanbeconcludedthatthemulberrytreesdemonstratedpotentialforresistingandtoleratingdroughtstress."
%K droughtstress
%K hydro-fluctuationbeltofThreeGorgesReservoirArea
%K mulberrytrees
%K growth
%U http://cqnuj.cqnu.edu.cn/oa/DArticle.aspx?type=view&id=120327