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时间:2020-04-16
《气象条件与夏大豆生育进程和产量的相关分析-论文.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、安徽农业科学,JournalofAnhuingn.Sci.2012,40(17):9224—9227。9269责任编辑姜丽责任校对卢瑶气象条件与夏大豆生育进程和产量的相关分析周景春,吴伟,陈若礼,张存岭。,纪永民,陆方芸(1.安徽省濉溪县气象局,安徽濉溪235100;2.安徽柳丰种业科技有限公司,安徽濉溪235100;3.安徽省濉溪县科技开发中心,安徽濉溪235100)摘要[目的]研究淮北地区气象条件对夏大豆(Glycinem,a,x)生长发育的影响,寻求影响其生长发育的关键因子。[方法]2011年设置46个品种(系
2、)的展示试验,2004和2011年进行播期试验,同步观察夏大豆生长发育进程和气象因子。[结果]适期夏播中熟大豆播种~出苗5~6d,需积温135—160℃;8—9片复叶展开时始花;出苗一始花27~35d,需积温750~950qC;始花一成熟58—69d,需积温1350~1600℃。生育期与主茎节数、有效分枝、单株结实荚数、荚粒数呈直线相关。播期推迟,生育期缩短,出苗~成熟所需积温减少,主茎节数减少,结实荚数下降,产量降低。夏大豆生长期内积温高、白昼时间长、>10.1mm雨日多,则产量高,生育期长;出苗一始花日照时数长,
3、则始花推迟,主茎节数、单株粒数、产量增加;始花一成熟降水量多,则单株结实荚数、单株粒数和产量增加。[结论]淮北夏大豆应在6月中旬播种。关键词夏大豆(GlycinelT171~);播种期;气候因子;生育进程;产量性状中图分类号s52文献标识码A文章编号0517—6611(2012)17—09224—04RelevantAnalysisofbetweenWeatherConditionsandSummerSoybean(Glycinemax)sDevelopmentProcessandProductionZHOUJing
4、—chunetal(SuixiCountyMeteorologicalAdministration,Suixi,Anhui235100)AbstractIObjectivelThepurposewastostudytheeffectsofsummerweatherconditionsinHuaibeiAreaonsoybeansgrowthanddevelop.ment.andfindoutthekeyfactoresinfluencingitsgrowthanddevelopment.1Me山odlExhibiti
5、ontestof46varieties(s【rains)wassettedin2011.andtheirsowingtimetestwascarriedoutin2004and2011,andsummersoybeansgrowthanddevelopmentprocessandmeteorologicalfactorswereobservedsynchronously.1ResultlThetimefromsowingtocomingoutseedlingsofmiddlematuritysummersoybean
6、sowingatsuit—abletimewas5—6days.andneededaccumulativetemperature135—160℃:Itbegantoflowerwhen8—9piecesofcompoundleavesopenedup;Thetimefromcomingoutseedlingstothefirstfloweropeningwas27—35days,andneededaccumulativetemperature750—950oC;etimefromthefirstfloweropeni
7、ngtomaturitywas58—69d.andneededaccumulativetemperature1350—16oo℃.Growthperiodhadalinearcorelationwithsectionnumberofmainstem,effectivebranch,filledpodsnumberperplantandgrainnumberperpod.Sowingtimedelayedcouldleadtosummersoybeansgrowthperiodshortening,anditsneed
8、edaccumulativetemperaturefromcomingoutseedlingstomaturity,sectionnumberofmainstemandfilledpotsnumberalldecreased,andfinallymadeitsyielddecreasing:Highaccumulativetemperature
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