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时间:2020-06-20
《DCPTA与CCC复配对寒地春玉米根系生长及茎秆农艺性状的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、nClnAIIRICULTURAE华北农学报·2014,29(2):156—160BHEOLI一$1HIOilDCPTA与CCC复配对寒地春玉米根系生长及茎秆农艺性状的影响王泳超,孟瑶,顾万荣,彭劲翔,魏浞,李晶(1.东北农业大学农学院,农业部东北地区作物栽培科学观测实验站,黑龙江哈尔滨1500302.黑龙江省农垦科学院,黑龙江佳木斯154002)摘要:为了明确DCPTA与CCC复配对玉米幼苗根系以及茎秆农艺性状的影响,以丰禾1号为供试品种,在玉米六叶期时喷施复配剂,以清水为对照。喷施药品后的2,4,6,8,10d及抽雄初期分别进行测量。研究结果表
2、明,喷施复配剂后,处理的根体积、根表面积、根长及单株根干质量较对照有所增加。根表面积与总根长处理与对照差异显著,前者在处理后第2天增幅最大,后者在第6天增幅最大,分别为49.16%和58.20%。茎秆节间直径较对照有所增加,茎秆节间长度较对照有所缩短,但差异不显著。单位茎长干质量和干物质百分比较对照有所增加,其中增加幅度最大的为抽雄后5d,分别为5.99%,7.99%。研究结果为DCFI'A与CCC的复配剂应用于玉米生产提供了理论和试验基础。关键词:玉米;DCPTA;CCC;根系;茎秆中图分类号:S513.01文献标识码:A文章编号:1000—70
3、91(2014)02—0156—05EfectsofMixedCompoundofDCPTAandCCConRootGrowthandStemAgronomicTraitsofSpringMaizeinColdAreaWANGYong—chao,MENGYao,GUWan—rong,PENGJin—xiang,WEIShi,LIJing(1.CollegeofAgriculture,NortheastAgriculturalUniversity,ScientificObservingandExperimentStationofCropCultiva
4、tioninNortheast,MinistryofAgriculture,Harbin150030,China;2.HeilongjiangAcademyofLandReclamationSciences,Jiamusi154002,China)Abstract:Inordertoclarifytheeffects0mixedcompoundODCPTAandCCConrootgrowthandstemagro—nomictraitsofspringmaize.Intheexperiment,Fenghe1waschosenastheexperi
5、mentalmaterial,Themixturesbesprayedonmaizeinthe6一leafstage,andthewaterascontrast.Thedataberespectivelymeasuredafter2,4,6,8,10daysofspraying.Theresuhsshowedthataftersprayingmixtures,comparedwiththecontrast,rootvolume,rootsur—facearea,rootlengthandplantrootdryweightareincreased.
6、Therootsurfaceareaandrootlengthweresignificantdifferencebetweenthetreatmentandthecontrast.Thelargestincreasedrateofformerisappearinginthesecondday,"aftersprayingandthelatterissixthday,Thedatarespectivelyare49.16%and58.20%.Comparedwithcontrast,thediameterofsectionbetweenstemisi
7、ncreasedandthelengthofsectionbetweenstemreduced,butdifferenceisnotsignificant.Comparedwiththecontrast,unitdryweightofstemlengthandpercentageofdrymatterareincreased.Thelargestincreasedrateisappearinginthefifthdayafterspraying.Thedatarespectivelyare5.99%,7.99%.Thetestprovidetheo
8、reticalandexperimentalbasisforthemixturesofDCPTAandCCCapplied
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