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时间:2018-04-16
《辽宁省引进的花生高产品种结荚特性研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国油料作物学报2013,35(4):400-404ChineseJournalofOilCropSciencesdoi:10.7505/j.issn.1007-9084.2013.04.008辽宁省引进的花生高产品种结荚特性研究王晓光,赵新华,蒋春姬,于海秋,曹敏建(沈阳农业大学农学院,辽宁沈阳,110866)摘要:徐花5号、R03-3、唐油4号、丰花5号和汕油101是5个适合辽宁生长的高产品种(系),以此为试材,比较研究了其结荚特性。结果表明,唐油4号和R03-3的单株果针数、有效荚果数和饱果数显著高于徐花5号和汕油101(P<0.05);始花期的
2、花形成的果针数、总荚果数、有效荚果数和饱果数所占的比率均较大,盛花期的花次之,末花期的花仅有极少数形成果针,且未结荚。R03-3始花期和盛花期的花形成的饱果数最多,其比率达100%和13.1%,其次为唐油4号和汕油101,丰花5号最低,仅为63.6%和5.3%。从结荚分布来看,不同品种(系)最高的结荚部位不同,一般为主茎第4、5节,且节位越低,总荚果数量越多,唐油4号主茎仅3个节位结荚,而汕油101最高结荚部位为主茎第6节。关键词:花生;引进品种(系);结荚特性;果针数;有效荚果数;饱果数中图分类号:S565.201文献标识码:A文章编号:1007-90
3、84(2013)04-0400-05PoddingcharacteristicsofhighyieldingpeanutvarietiesintroducedintoLiaoningProvinceWANGXiao-guang,ZHAOXin-hua,JIANGChun-ji,YUHai-qiu,CAOMin-jian(CollegeofAgronomy,ShenyangAgriculturalUniversity,Shenyang110866,China)Abstract:Fivehighyieldpeanutvarieties,Xuhua5,R03
4、-3,Tangyou4,Fenghua5,andShanyou101introducedfromotherregionsofChinawereselectedtostudytheirpoddingcharacteristicsinLiaoningProvince.Theresultsshowedthatnumberofgynophores,effectivepodsandwell-filledpodsperplantinTangyou4andR03-3weresignificantlyhigherthanthoseinXuhua5andShanyou1
5、01(P<0.05).Ratiosofgynophoresnumber,totalpods,effectivepodsandwell-filledpodsperplantatbeginningoffloweringstagetototalflowernumberwerethehighest,followedatpeakfloweringstage.Fewflowerscoulddevelopintogynophoresattheendoffloweringstageandnonedevelopedintopod.Ratesofwell-filledpod
6、ofR03-3atinitialandpeakfloweringstages(100%and13.1%)werethehighest.Tangyou4andShanyou101werefollowed,andFenghua5werethelowestwith63.6%and5.3%only.Thehighestpodpositionswerelocatedonthe4-5thnodesofmainstemingeneral.Muchlowernodepositionhadgreaternumberofpods.Thehighestpodpositiono
7、fTangyou4waslocatedonthe3thnodeofmainstem,andthatofShanyou101wasonthe6thnode.Keywords:Peanut;Introducedvarieties;Poddingcharacteristics;Gynophoresnumber;Effectivepods;Well-filledpods[3]花生产量的形成与其开花、结荚习性密切相关。一般产量花生;合理密植有利于单位面积内的开[4]有研究表明,一般花生有效花终止期为始花后30d,花数、成针数、荚果数、饱果数及果重的增加。关[1]有
8、效果针入土终止期为收获前60d,且第1、2对于各花期结果百分率研究结果不尽一致,
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