摘要
为挖掘芝麻耐连作种质资源,以赣芝5号、赣芝9号、万荣黑芝麻、青麻、金黄麻、武宁黑芝麻、东乡黑芝麻、冀9014、玉山黑芝麻,豫芝11号、陕西旬阳、中芝13号、P13–2、WS46、樟树褐芝麻为供试材料,于2014—2015年对芝麻进行连作耐性筛选。结果表明:连作导致芝麻的发芽率、发芽势、发芽指数、活力指数、单株干物质质量、单株蒴果数、每蒴粒数和单株产量显著降低;空梢尖长、始蒴部位和瘪子率显著升高;对千粒质量无显著影响。结合相关分析和聚类分析结果,认为发芽率和发芽指数的连作系数可作为芝麻萌发期连作耐性筛选指标;单株干物质质量、单株蒴果数和单株产量的连作系数隶属函数值组成的指标池,可作为基于产量的芝麻田间连作耐性筛选标准。通过芝麻萌发期和田间耐性筛选,得到耐连作能力较为稳定的金黄麻(C5)和武宁黑芝麻(C6);中等耐连作能力较为稳定的玉山黑芝麻(C9)和豫芝11号(C10)以及不耐连作的赣芝5号(C1)、赣芝9号(C2)和P13–2(C13);其他品种(品系)对连作耐受性不稳定。
In order to study the continuous cropping tolerance of sesame,Ganzhi–5,Ganzhi–9,Wanrongheizhima,Qingma,Jinhuangma,Wuningheizhima,Dongxiangheizhima,Ji–9014,Yushanheizhima,Yuzhi–11,Xianxixunyang,Zhongzhi–13,P13–2,WS46,Zhangshuhezhima were chosen for analysis.The result showed that under continuous cropping,germination rate(GR),germination potential(GP),germination index(GI),vigor index(VI),dry weight per plant(DWPP),capsules per plant(CPP),seeds per capsule(SPC)and yield per plant(YPP)decreased,while the plant top length(PTL),beginning of purusha part(BPP)and blighted seed rate(BSR)increased.However,continuous cropping showed little effect on 1000 seed weight(TSW)of sesame.Combining with the results of correlation analysis and cluster analysis,GR and GI could be served as the indicators to evaluate the continuous cropping tolerance of sesame cultivars at germinating stage.In addition,the index pool of DWPP,CPP and YPP could be applied to assess the continuous cropping tolerance in field which based on the yield.As a result,Jinhuangma(C5)and Wuningheizhima(C6)showed stable continuous cropping tolerance,Yushanheizhima(C9)and Yuzhi–11(C10)showed moderate continuous cropping tolerance,while Ganzhi–5(C1),Ganzhi–9(C2),and P13–2(C13)showed stable continuous cropping sensitivity.The response of other cultivars to continuous cropping was not stable.
作者
吕丰娟
肖运萍
汪瑞清
魏林根
袁展汽
林洪鑫
LYU Fengjuan;XIAO Yunping;WANG Ruiqing;WEI Lingen;YUAN Zhanqi;LIN Hongxin(Soil and Fertilizer&Resources and Environment Institute,Jiangxi Academy of Agricultural Sciences,Nanchang,Jiangxi 330200,China;Key Laboratory of Crop Ecophysiology and Farming System for the Middle and Lower Reaches of the Yangtze River,Ministry of Agriculture,Nanchang,Jiangxi 330200,China;National Engineering and Technology Research Center for Soil Improvement,Nanchang,Jiangxi 330200,China)
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第2期130-135,共6页
Journal of Hunan Agricultural University(Natural Sciences)
基金
国家自然科学基金项目(31560367)
江西省农业科学院创新基金博士启动项目(2013CBS004)
国家现代农业产业技术体系建设项目(CARS–15–2–05)
江西现代农业科研协同创新项目(JXXTCX2015003–001)
关键词
芝麻
红壤
连作耐性
连作系数
隶属函数值
聚类分析
Sesamum indicum
red soil
continuous cropping tolerance
continuous cropping toxicity coefficient
subjection values
cluster analysis
