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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/299854064EffectofWaterTreatmentsafterJointingStageonPlantCharactersandWaterUseEfficiencyofMaizeArticle·January2011CITATIONSREADS0321author:CaoQing-junJilinAcademyofAgriculturalSciences13PUBLI
2、CATIONS4CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:NaturalScienceFoundationofChinaViewprojectAllcontentfollowingthispagewasuploadedbyCaoQing-junon18April2016.Theuserhasrequestedenhancementofthedownloadedfile.玉米科学2011，19(3)：105～109JournalofMaize
3、Sciences文章编号：1005-0906(2011)03-0105-05玉米拔节后不同水分处理对植株性状和水分利用效率的影响曹庆军，崔金虎，王洪预，温海娇，高亚男，罗利红，韩海飞(吉林大学植物科学学院，长春130062)摘要：采用田间试验的方法，在不同灌水条件下，研究吉林省西部半干旱区春玉米植株性状、水分利用特性、茎秆强度与植株性状的关系。结果表明：随着灌水量的增加，玉米株高增加，穗位高和茎秆强度有所增加，对茎粗的影响相对较小。干旱胁迫下适度灌水，玉米的茎秆强度和株高、茎粗及穗位高呈正相关关系；在灌水量达田间持水量100%的处理下，玉米的茎秆强度和株高、茎粗及穗位高呈负
4、相关，即玉米的茎秆强度随株高和穗位高的增加而呈降低趋势，从而增加了倒伏的风险。随着灌水量的增多，玉米产量提高不明显，水分利用效率显著降低。关键词：玉米；灌水量；茎秆强度；水分利用效率中图分类号：S513.071文献标识码：AEffectofWaterTreatmentsafterJointingStageonPlantCharactersandWaterUseEfficiencyofMaizeCAOQing-jun,CUIJin-hu,WANGHong-yu,WENHai-jiao,GAOYa-nan,etal.(CollegeofPlantScience,JilinUni
5、versity,Changchun130062,China)Abstract:EffectofwatertreatmentonplantcharacterandwateruseefficiencyofmaizewasinvestigatedbyfieldplotexperimentsinsemiaridregionofWesternJilinprovince.Theresultsshowedthatwiththeincreaseofwater,amountplantheight,stemstrengthandearheightincreased,theinfluencewa
6、srelativelysmallonstemdiameter.Un-dertheconditionofmoderateirrigationstemstrengthweresignificantlypositivelycorrelatedwithplantheight,stemdiameterandearheight,whichshowednegativecorrelationinstead,withtheexcessiveirrigationtreatment,thatwaswiththeincreaseofplantheightandearheight,stemstren
7、gthdecreased,thusincreasingtheriskoflodging.Inaddi-tion,theincreaseofmaizeyieldnotsignificantlyandthewateruseefficiencyweresignificantlydecreased.Keywords:Maize;Irrigationamount;Stemstrength;Wateruseefficiency吉林省西部半干旱地区位于松嫩平原的西端，或是不灌水，常因灌溉时机不对或灌溉量不足使得[1～3]是吉林省
