摘要
针对贵州西部低温寡照、春旱严重、后期阴雨连绵和土壤瘠薄的生态环境,开展早熟、耐瘠、耐低温阴雨、抗病性好且籽粒脱水快的玉米新种质创制与杂交种选育。利用“两群双向选择组配”理论,以QB 1018(母本)和QB 2232(父本)组配多抗、高产的玉米新品种金玉2208(黔审玉20200033);适合贵州省毕节市和六盘水市海拔1400~2200 m中上等肥力土壤的玉米产区种植,该品种能在北方制种,有效解决热带种质制种温光反应问题。
Aiming at the ecological environment of low temperature and little sunshine,severe spring drought,continuous rain in the later stage and poor soil in western Guizhou,the creation and hybrid breeding of new maize germplasms with early maturity,barren tolerance,low temperature and rain tolerance,good disease resistance and fast grain dehydration were carried out.Using the theory of"two-way selection and combination of two groups",QB 1018(female parent)and QB 2232(male parent)were used to combine a new maize variety Jinyu 2208(Qian Shenyu 20200033)with multi-resistance and high yield which was suitable for Bijie City,and Liupanshui City in Guizhou Province where planted in maize production areas with an altitude of 1400—2200 meters in medium and upper fertile soils.This variety could be used for seed production in the north and effectively solves temperature and light reaction problems of tropical germplasm seed production.
作者
王天宇
祝云芳
郭向阳
王安贵
吴迅
刘鹏飞
陈泽辉
WANG Tianyu;ZHU Yunfang;GUO Xiangyang;WANG Angui;WU Xun;LIU Pengfei;CHEN Zehui(Institute of Upland Food Crops,Guizhou Academy of Agricultural Sciences,Guiyang 550006,China)
出处
《种子》
北大核心
2022年第7期114-118,共5页
Seed
基金
国家重点研发计划项目“云贵高原及武陵山区高海拔山地抗逆高产耐瘠薄玉米新品种培育”(2018 YFD 0100104)
贵州省高层次创新型人才项目[黔科合平台人才(2018)5629]
贵州省基金“玉米籽粒脱水相关性状QTLQ 41 GN-SL的精细定位与候选基因分析”[黔科合基础(2020)1 Z 019]。
关键词
玉米
品种选育
杂优模式
育种实践
maize
variety breeding
heterosis models
breeding practices
