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时间:2020-04-18
《大豆航天搭载SP4代选择效果与SP2代变异率相关性分析-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、植物遗传资源学报2014,15(1):192—195JournalofPIantGeneticResource$DOI:10.13430/j.cnki.jpgr.2014.O1.028大豆航天搭载SP4代选择效果与SP2代变异率相关性分析郑伟,谢甫绨,郭泰,许德春,王志新,吴秀红,李灿东,刘忠堂,张振宇。,张茂明,孟丽芬,付立新,赵晓南。(沈阳农业大学,沈阳110161;黑龙江省农业科学院佳木斯分院,佳木斯154007;3黑龙江省农业科学院原子能利用研究所,哈尔滨150086)摘要:为了明确大豆空间诱变早期世代农艺性状选
2、择的依据,提高空间诱变育种早期世代选择效果,对6个大豆品种经过航天搭载后的sP,代变异率和sP代选择效果进行了分析,结果表明遗传力高的sP代的单株荚数和单株粒数2个农艺性状的变异率与SP4代入选单株数相关性达到极显著水平;SP代遗传力较高的底荚高度和节间长度的变异率与sP代入选单株相关性达到显著水平,sP,代遗传力不高的植株高度和主茎节数变异率与sP代入选单株相关不显著;SP代对单株荚数、单株粒数、底荚高度、节间长度进行选择有效,而对植株高度和主茎节数选择效果不明显。关键词:空间诱变;变异率;选择;相关分析TheCorr
3、elationAnalysisofSelectionEfectforSP4andVariationsforSP2inSpaceFlightonSoybeanZHENGWei一,XIEFu—ti,GU0Tai,XUDe—chun。,WANGZhi.xin,WUXiu.hong,LICan.dong,LIUZhong—tang,ZHANGZhen.yu,ZHANGMao—ming,MENGLi.fen,FULi.xin,ZHAOXiao-nan(ShenyangAgriculturalUniversity,Shenyang1
4、10161;.,口,nMsBranchofHeilongjiangAcademyofAgriculturalSciences,Ji0musi154007:AtomicEnergyBranchInstitute,HeilongfionAcademyofAgricuhuralSciences,Harbin150086)Abstract:Inordertodefinitetheselectionbasisofagronomictraitsforearlygenerationandimprovetheselec—tioneffe
5、ctinsoybeanspace-mutationbreeding.WeanalyzedtheSP2generationvariationrateandtheSP4generationselectionefectsofsixsoybeanvarietiesafterspaceflightcarrying.TheresultsshowedthattherelationshipbetweenvariationrateofpodandgrainnumberperplantwithhighheritabilityofSP2gen
6、erationandtheselectedplantBum—berofSP4generationwasextremelysignificant.WhiletherelationshipbetweenvariationrateofbottompodsheightandinternodelengthofSP2generationandselectedplantnumberofSP4generationwassignificant.Andtherelation—shipamongvariationrateofplantheig
7、htandpitchnumberofmainstemofSP2generationandselectedplantnumberofSP4generationwasnotsignificant.Therfore,theselectionofSP2generationtopodnumber,grainnumber,bottompodsheight,andinternodelengthwaseffective,whiletheplantheightandpitchnumberofmainstemwasnotobvi—OUS.K
8、eywords:space—mutation;variationrate;choice;correlationanalysis航天诱变育种是借助于航天器搭载农作物种子天育种作为一种新的育种手段,在高粱、水或其他可再生组织,经过太空的特殊环境诱发变异,稻引、小麦、青椒、谷子等多种作物育种中然后经过地面种植选育新品种的育
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