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1、棉花学报CottonScience2014袁26渊5冤院459~465整枝方式与种植密度对蒜套棉产量和品质的效应121112*谢志华袁李维江袁苏敏袁缪蕾袁程丽娟袁董合忠(1.济宁市农业科学研究院袁山东济宁232031曰2.山东棉花研究中心袁济南250100)摘要院以棉花抗虫杂交种鲁棉研15号渊F1冤为材料袁在鲁西南3个不同的地点袁研究了整枝方式渊去叶枝尧留叶枝冤与种植密度渊2.7尧3.3尧3.9尧4.5万株窑hm-2冤对棉花产量和纤维品质的影响遥结果表明袁整枝方式和种植密度对棉花纤维品质的影响不显著袁但对棉花产量有显著的互作效应袁3.3万株窑hm-2伊留叶枝尧2.
2、7万株窑hm-2伊留叶枝和3.3万株窑hm-2伊去叶枝的组合比传统栽培渊2.7万株窑hm-2伊去叶枝冤分别增产20.4%尧9.2%和10%袁也显著高于其他处理组合曰生物产量分别提高了13.7%尧27.8%和11.6%袁而经济系数只降低了5.3%尧11.5%和4.5%遥在维持较高经济系数和铃重的基础上增加生物产量和铃数是该3个处理组合显著增产的原因袁适当提高密度并配合简化整枝是实现蒜套棉高产高效的重要技术途径遥关键词院蒜套棉曰整枝曰种植密度曰产量曰品质中图分类号院S562.04文献标志码院A文章编号院1002-7807(2014)05-0459-07121112*X
3、ieZhihua,LiWeijiang,SuMin,MiuLei,ChengLijuan,DongHezhong(1.272000,;2.250100,)Fieldexperimentswereconductedinthreesitestostudytheeffectsofplantpruningmode(withorwithoutvegetativebranches)andplantdensity(2.7伊104,3.3伊104,3.9伊104,4.5伊104plants窑hm-2)onyieldandfiberqualityofcottoninagarlic-
4、cottonintercroppingsysteminsouthwesternShandongprovince.Theresultsshowedthatpruningmode,plantingdensityortheirinter-actionhadnosignificanteffectoncottonfiberquality,butthereexistedasignificantinteractioneffectofpruningmodeandplantingdensityoncottonyield.Threecombinations,3.3伊104plants
5、窑hm-2withvegetativebranches(VB),2.7伊104plants窑hm-2withVB,and3.3伊104plants窑hm-2withoutVB,improvedlintyieldby20.4%,9.2%and10%,respectively,comparedwiththetraditionalcultivationmethod(2.7伊104plants窑hm-2withoutVB).Theywerealsosignificantlyhigherthanothertreatmentcombi-nationsinlintyield.I
6、ncreasedplantdensity,maitainingVBortheircombinationsignificantlyincreasedbiomass,butdecreasedtheharvestindex.Comparedwithtraditionalcultivationmethod,3.3伊104plants窑hm-2withVB,2.7伊104plants窑hm-2withVBand3.3伊104plants窑hm-2withoutVBincreasedbiomassby13.7%,27.8%and11.6%,decreasedharvestin
7、dexby5.3%,11.5%and4.5%,respectively.Significantimprovementonlintyieldbythethreecombinationswasattributedtotheincreasedbiomassandtotalnumberofbollsperunitareaonthebasisofmaintainingrelativelyhigherharvestindexandbollweight.Itisconcludedthatappropriateincreaseinplantdensitycombinedwithm
8、ainta
