荸荠新品种桂蹄4号的选育  

A New Water Chestnut Variety—‘Guiti No.4’

作　　者：江文[1,2] 黄诚梅[2] 高美萍[1] 陈丽娟[1] 蔡炳华[1] 何青石 赖松新 JIANG Wen;HUANG Cheng-mei;GAO Mei-ping;CHEN Li-juan;CAI Bing-hua;HE Qingshi;LAI Song-xin(Biotechnology Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,Guangxi,China;Crop Genetic Improvement and Biotechnology Laboratory,Guangxi Academy of Agricultural Sciences,Nanning 530007,Guangxi,China;Babu District Institute of Agricultural Sciences,Hezhou 542800,Guangxi,China)

机构地区：[1]广西农业科学院生物技术研究所,广西南宁530007 [2]广西农业科学院作物遗传改良生物技术指导开放实验室,广西南宁530007 [3]贺州市八步区农业科学研究所,广西贺州542800

出　　处：《中国蔬菜》2020年第9期91-93,共3页China Vegetables

基　　金：国家特色蔬菜现代农业技术体系贺州综合试验站项目(CARS-24-G-17);广西八步马蹄试验站项目(桂TS201426);广西柳江特色水生蔬菜试验站项目(桂TS2016004);广西农业科学院基本业务专项(2015YT55)。

摘　　要：桂蹄4号是以桂蹄2号为材料,通过茎尖组织培养产生的优良变异单株筛选培育而成的早中熟荸荠新品种。生育期130~140 d(天);植株生长势强,球茎横椭球形、脐部微平,皮褐白色,淀粉含量47.0 mg·g^-1,可溶性糖含量7.95%,口感脆甜、少渣,品质好;平均单球质量26.2 g,每667 m^2产量2200 kg左右,田间对秆枯病的抗性与对照桂蹄2号相当,适宜广西及其周边地区种植。‘Guiti No.4’a new early-medium ripening water chestnut cultivar developed by taking‘Guiti No.2’as material,screened and bred from mutant single plant of stem-tip tissue culture.The whole growth period is 130-140 days.The plant has strong growth vigor.The corm is of transverse ellipsoid shape.The umbilical region is slightly flat.Its peel is brownish white in color.Its starch content is 47.0 mg·g-1,and soluble sugar content is 7.95%.It tastes crisp and sweet with less dregs and good quality.The average single corm weight is 26.2 g.It can yield about 33 t·hm-2.In the fields,its resistance to stem blight is equivalent to that of the contrast‘Guiti No.2’.It is suitable to be planted in Guangxi and surrounding areas.

关 键 词：荸荠 桂蹄4号 茎尖组培变异株 

分 类 号：S645.3[农业科学—蔬菜学]