9个不同使用类型木薯品系在合浦县的适应性研究  

Nine Different Usage Types of Cassava Lines:Adaptability Study in Hepu

作　　者：罗燕春[1] 赵鑫鑫 盘欢[1] 廖琦[2] 俞奔驰[1] 劳赏业 范锡恩 刘翠娟[2] 李荣云[2] 曾新华 付海天[1] LUO Yanchun;ZHAO Xinxin;PAN Huan;LIAO Qi;YU Benchi;LAO Shangye;PHAM Thinhan;LIU Cuijuan;LI Rongyun;ZENG Xinhua;FU Haitian(Guangxi Subtropical Crops Research Institute,Nanning 530001;Hepu County Institute of Agriculture Sciences,Hepu,Guangxi 536100;Hung Loc Agricultural Research Center,Vietnam 76321)

机构地区：[1]广西壮族自治区亚热带作物研究所,南宁530001 [2]合浦县农业科学研究所,广西合浦536100 [3]越南洪禄农业研究中心,越南76321

出　　处：《中国农学通报》2024年第18期31-37,共7页Chinese Agricultural Science Bulletin

基　　金：广西科技计划项目“木薯种质资源创制关键技术利用与新品种选育”(桂科AB21196071);国家外国专家项目“中国-越南木薯联合育种网络平台建设与新品种选育”(DL2022033002L);广西农业科学院基本科研业务专项资助项目“木薯种质资源保护、评价与新品种选育”(桂农科2021YT149);广西农业科学院基本科研业务专项资助项目“木薯高效栽培技术研究”(桂农科2021YT150);现代农业产业技术体系建设专项“国家木薯产业技术体系土肥水管理岗”(CARS-11-GXLJ)。

摘　　要：为筛选适宜在合浦县推广的木薯品系,本研究以主栽品种‘南植199’为对照,对9个木薯新品系的生物学特性进行了观察,并测定其农艺性状和经济性状,同时进行相关性分析。结果表明,9个品系分枝角度小、块根长度适中和主茎高度中等以上;‘RC4’的块根产量显著高于对照,其余8个品系与对照差异不显著;‘RC4’等8个品系的淀粉产量高于对照;9个品系的淀粉含量高于对照,其中‘RC3’等5个品系的淀粉含量显著或极显著高于对照;9个木薯品系的直链淀粉含量显著或极显著低于对照‘;RC6’等6个品系的氢氰酸含量低于50 mg/kg。相关性分析结果表明:块根产量与生长中期株高、成熟期株高、块根直径呈极显著正相关,与茎粗呈显著正相关;淀粉含量与生长中期株高、成熟期株高、茎粗呈显著正相关;淀粉产量与生长中期株高、成熟期株高、茎粗、块根直径、块根产量呈极显著正相关,与淀粉含量呈显著正相关。综合来看,这9个木薯新品系的综合表现良好,适合在合浦县进行推广。其中‘,RC3’、‘RC4’和‘RC7’可作为加工型品系;‘RC5’和‘RC10’可作为食用品系;‘RC2’、‘RC6’、‘RC11’和‘RC12’可作为鲜食加工兼用品系;‘RC2’和‘RC5’作为食用品系具有很好的推广前景。In order to select suitable cassava lines for extending in Hepu,the biological characteristics of 9 cassava lines were observed with the main cultivar variety‘Nanzhi 199’as control,and their agronomic and economic characters were determined and the correlation analysis were conducted.The results showed that the branch angles of 9 cassava lines were small,the root lengths were moderate and the main stem heights were above medium.The tuber yield of‘RC4’was significantly higher than the control,but other 8 cassava lines had no significant difference.The starch yields of 8 cassava lines such as‘RC4’were higher than that of the control.The starch contents of 9 cassava lines were higher than that of the control,among which 5 cassava lines such as‘RC3’were significantly or extremely significantly higher than that of the control.The amylose contents of 9 cassava lines were significant or extremely significantly lower than that of the control.The hydrocyanic acid contents of 6 cassava lines such as‘RC6’were lower than 50 mg/kg.The results of correlation analysis showed that the tuber yield was extremely significantly positive related to plant height at middle growth stage,plant height at maturity stage and diameter of tuber root,and was significantly positive related to stem diameter.Starch content was significantly positive related to plant height at middle growth stage,plant height at maturity stage and stem diameter.Starch yield was extremely significantly positive related to plant height at middle growth stage,plant height at maturity stage,stem diameter,tuber diameter,tuber yield,and was significantly positive related to starch content.In conclusion,the 9 new cassava lines had good comprehensive characters and were suitable for extending in Hepu.‘RC3’,‘RC4’and‘RC7’can be used for further processing.‘RC5’and‘RC10’can be used for fresh consumption.‘RC2’,‘RC6’,‘RC11’and‘RC12’can be used for both fresh consumption and further processing.‘RC2’and‘RC5’have gre

关 键 词：木薯 品系 适应性 使用类型 相关分析 合浦县 生物学特性 农艺性状 经济性状 块根产量 淀粉含量 直链淀粉 氢氰酸含量 加工型品系 食用品系 鲜食加工兼用品系 推广前景 

分 类 号：S533[农业科学—作物学]