高淀粉甘薯新品种“渝薯1号”的选育研究

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英文篇名：Breeding of “Yushu No.1”,a Newly-Developed Variety of Sweetpotato with High Starch Content 作者：王佳佳 ; 杨春贤 ; 曾令江 ; 程鹏 ; 李静 ; 田欢 ; 杨婷婷 ; 王雪宁 ; 傅玉凡 英文作者：WANG Jia-jia;YANG Chun-xian;ZENG Ling-jiang;CHENG Peng;LI Jing;TIAN Huan;YANG Ting-ting;WANG Xue-ning;FU Yu-fan;School of Life Science, Southwest University/Engineering and Technology Research Center for Sweetpotato of Chongqing; 关键词：甘薯 ; 淀粉 ; 品种 ; “渝薯1号” ; 选育 英文关键词：sweetpotato;;starch;;variety;;Yushu No.1;;breeding 中文刊名：西南大学学报(自然科学版) 英文刊名：Journal of Southwest University(Natural Science Edition) 机构：西南大学生命科学学院/重庆市甘薯工程技术研究中心; 出版日期：2019-07-20 出版单位：西南大学学报(自然科学版) 年：2019 期：07 基金：重庆市科委攻关项目(cstc2015shms-ztzx80002) 语种：中文; 页：36-41 页数：6 CN：50-1189/N ISSN：1673-9868 分类号：S531

摘要

介绍高淀粉甘薯新品种"渝薯1号"选育过程和在推广示范中的表现,以期为推广与种植提供参考.在2012-2013年重庆市甘薯新品种区域试验中,"渝薯1号"淀粉产量为7.23 t/hm~2,比对照品种"徐薯22"增产32.90%,淀粉百分比为26.24%.在2014-2015年国家甘薯品种长江流域薯区区域试验中,"渝薯1号"淀粉产量为7.15 t/hm~2,比对照品种"徐薯22"增产21.70%,淀粉百分比为25.64%.该品种萌芽性一般,大中薯率70%以上,抗根腐病,中抗黑斑病和蔓割病.
        The present paper reports the performance of "Yushu No.1"-a new high-starch sweetpotato [Ipomoea batatas(L.) Lam.] variety-in regional tests so as to facilitate its extension and provide guidance to the growers. Its productivity, agronomic and economic characters, morphological features and stress resistance are described. In the regional test in Chongqing from 2012 to 2013, its average starch yield in the storage roots was 7.23 t/ha, a 32.90% increase compared with that of "Xushu 22"-the control variety in the test, and the starch content was 26.24%. In the regional test of sweetpatato-cultivating regions in Yangtze River Valley from 2014 to 2015, its average starch yield in storage roots was 7.15 t/ha, a 21.70% increase compared with that of "Xushu 22", and the starch content in the storage roots was 25.64%. The germination of " Yushu No.1" is satisfactory, and the rate of big-and middle-sized tubers(100 g or more) is over 70%. It is resistant to root rot and tolerant to black rot and Fusarium wilt.

引文

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