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《优质稻-丝香1号-的选育及高产栽培技术.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、广西农业科学2010,41(2):120-121GuangxiAgricultⅢ,'.1Sciences优质稻“丝香1号”的选育及高产栽培技术何俊,莫振勇,莫桂林,梁劲(玉林市农业科学研究所,广西玉林537000)摘要:“丝香l号”是以从广东农业科学院引进的“丝苗香”为母本、性状优良株系“608号”为父本(西山香×桂99的选育株系)进行杂交,并经多年多代系统选育而成的感温型常规优质稻新品种。其特征特性表现为:生育期早造124d左右,晚造107d左右;综合农艺性状好,株型集散适中,每穗总粒数130.4粒,结实率82.0%,千粒重23.29;适应性较广,易获得高
2、产稳产,在2006-2007年区试中,产量为6401.10~6806.25kg/ha;米质优,整精米率、垩白粒率、胶稠度等5项指标达农业部部颁优质米一级标准;糙米率、透明度、垩白度等5项指标达二级标准。其高产栽培要求适时播种,培育壮秧;适时移栽,合理密植;科学调控水肥及防治病虫害。关键词:优质稻;丝香1号;选育;特征特性;高产栽培中图分类号:$511.048文献标识码:B文章编号:1002—8161(2010)02-0120-02Breedingfornewrice‘‘Sixiang1andhighyieldreeOinganewrlcevarietyIi-
3、yielcultivationtechniquesHEJun,MOZhen—yong,MOGui—lin,LlANGJing(YulinInstituteofAgriculturalSciences,Yuhn,Guangxi537000,China)Abstract:Sixiang1,anewthermo-sensitiveconventionalricevarietywithgoodgrainquality,bredbycrossingbe-tween“Simiaoxiang”(femaleparent,introducedfromGuangdongAca
4、demyofAgriculturalSciences)andthericestrain“608”(maleparentderivedfromXishanxiangxGui99)aftermanygenerationsofselectivebreedingprocess.Sixianglischaracterizedby124daysofgrowthdurationforearlyriceand107daysofgrowthdurationforlaterice,goodcomprehen—siveagronomictraits,moderateplantty
5、pe,onallaverageabout130.4totalgrainsperpanicle,82.0%ofseedsettingrateand23.2gof1000一grainweight.Thevarietyshowedwideadaptability。stabilityandhighyieldqualities.TheyieldofSixiang1rangedfrom6401.10tO6806.25ks/hainGuangxiregionaltrialduring2006-2007.Sixianglshowedgoodgrainqualityandit
6、sindicesv/z.,headricerate,chalkyricerate,gelconsistencyreachedthefirstgradegoodgrinqualityricestandardsetupbyMinistryofAgriculture,andbrownricerate,transparencyandchalkinessdegreereachedthesecondgradestandard.ThehighyieldcultivationtechniquesofSixiang1were鹊follows:sowingtimeforearl
7、yriceduringthefirstten-dayofMarchandforthelatericeduringthefirstten—dayofJuly),cultivatingstrongseedling,timelytransplant-ing(25daysofseedlingage),reasonableplantingdensity(basicseedlingsnumberfortransplantingandthrowingwas1.20一1.50x106/haand1.05一1.35x106/ha,respectively),scientifi
8、capplicationoffertihzerand
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