| 甘蔗脱毒健康种苗原苗主茎重复扦插快繁技术 |
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| 引用本文： | 陈荣发,丘立杭,周慧文,周忠凤,翁梦苓,黄杏,李杨瑞,范业赓,吴建明.甘蔗脱毒健康种苗原苗主茎重复扦插快繁技术[J].广西植物,2021,41(4):614-621. |
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| 作者姓名： | 陈荣发 丘立杭 周慧文 周忠凤 翁梦苓 黄杏 李杨瑞 范业赓 吴建明 |
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| 作者单位： | 广西壮族自治区农业科学院甘蔗研究所/广西甘蔗遗传改良重点实验室/农业部广西甘蔗生物技术与遗传改良重点实验室,南宁 530007 |
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| 基金项目： | 广西创新驱动重大专项(AA17202042-13);广西自然科学基金重点项目(2015GXNSFBA139011);国家农业产业技术体系广西甘蔗创新团队专项(gjnytxgxcxtd-03);广西农业科学院项目(2018YT01,2018YM02)[SupportedbyGuangxiMajorSpecialProjectofInnovationDrive(AA17202042-13);GuangxiKeyProjectofNaturalScienceFoundation(2015GXNSFBA139011);GuangxiSugarCaneInnovationTeamSpecialProjectoftheNationalAgriculturalIndustryTechnologySystem(gjnytxgxcxtd-03);ProjectofGuangxiAcademyofAgriculturalSciences(2018YT01,2018YM02)]。 |
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| 摘 要： | 为了解决目前甘蔗健康种苗生产成本高、生产周期过长、繁育速度慢等问题,该文以桂糖08-120脱毒健康种苗原苗为材料,在甘蔗健康种苗原苗发生分蘖后,剪下原苗主茎进行2次重复扦插移栽技术研究。结果表明:甘蔗健康种苗原苗主茎全埋种植成活率48.20%,主茎斜插种植成活率95.10%;健康种苗原苗、主茎第一次扦插移栽和主茎第二次扦插移栽的移栽成活率分别为97.67%、96.33%和96.00%,分蘖数分别为15条、14条和13条,株高分别为157.67、127.00和123.84 cm,茎径分别为25.52、25.31和25.23 mm,有效茎数分别为87 245、97 465和93 960条·hm~(-2),产量分别为49 294.5、52 126.00和49 948.50 kg·hm~(-2);主茎第一次扦插移栽和主茎第二次扦插移栽的株高低于原苗种植,但分蘖数、茎径、有效茎数和产量与原苗种植差异不显著,健康种苗原苗主茎扦插移栽与健康种苗原苗移栽的甘蔗产量效应相差不大;原苗主茎重复扦插快繁成本约为一株0.47元,显著低于原苗常规繁种成本。该研究结果为甘蔗健康种苗降低成本和加快繁育速度提供了技术支撑。
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| 关 键 词： | 甘蔗 脱毒健康种苗 田间繁育 扦插移栽 |
| 收稿时间： | 2019/12/27 0:00:00 |
Techniques for repeated cutting and transplanting of main
stem of virus-free healthy sugarcane seedling propagation |
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| CHEN Rongf,QIU Lihang,ZHOU Huiwen,ZHOU Zhongfeng,WENG Mengling,HUANG Xing,LI Yangrui,FAN Yegeng,WU Jianming.Techniques for repeated cutting and transplanting of main
stem of virus-free healthy sugarcane seedling propagation[J].Guihaia,2021,41(4):614-621. |
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| Authors: | CHEN Rongf QIU Lihang ZHOU Huiwen ZHOU Zhongfeng WENG Mengling HUANG Xing LI Yangrui FAN Yegeng WU Jianming |
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| Institution: | SugarcaneResearchInstitute,GuangxiAcademyofAgriculturalSciences/GuangxiKeyLaboratoryofSugarcaneGeneticImprovement/Key
LaboratoryofSugarcaneBiotechnologyandGeneticImprovement(Guangxi),MinistryofAgriculture,Nanning530007,China |
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| Abstract: | Inordertosolvetheproblemsofhighproductioncost,longproductioncycleandslowpropagationspeedofsugarcanehealthyseedlings,usingGuitang08-120healthyseedlingsasmaterial,aftertillersoccurredintheoriginalsugarcanevirus-freehealthyseedlings,themainstemwascutandtransplantfortwotimes.Theresultswereasfollows:Thesurvivalrateofsugarcanehealthyseedlingswas48.20%whenthemainstemwasburiedandcuttingplantingseedlingwas95.10%;Theoriginalseedlingplanting,thefirsttimecuttingtransplantingofmainstemandthesecondtimecuttingtransplantingofmainstemofthesurvivalratesoftransplantingwere97.67%,96.33%and96.00%,thenumberoftillerswere15,14and13,theplantheightwere157.67,127.00and123.84cm,thediameterofstemwere25.52,25.31and25.23mm,theeffectivestemnumberwere87245,97465and93960bar·hm-2,theyieldwere49294.5,52126.00and49948.50kg·hm-2,respectively;Thefirsttimecuttingtransplantingofmainstemandthesecondtimecuttingtransplantingofmainstemwerelowerthantheoriginalseedlingplanting,butthetillernumber,stemdiameter,effectivestemnumberandyieldwerenotsignificantlydifferentfromthatoftheoriginalseedlings,theresultsshowedthattherewasnosignificantdifferencesinsugarcaneyieldbetweenhealthyseedlingsofcuttingtransplantingofmainstemandoriginalhealthyseedlings;Thecostofrapidpropagationofonemainstemoftheoriginalseedlingisabout0.47yuan,whichissignificantlylowerthanthecostofconventionalpropagationoftheoriginalseedling.Theresultsofthisstudyprovidetechnicalsupportforreducingthecostandacceleratingthebreedingspeedofsugarcanehealthyseedlings. |
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| Keywords: | sugarcane virus-freehealthyseedlings fieldpropagation cuttingtransplanting |
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