寒地水稻新品种‘育龙7号’引种鉴定及适应性分析  

New Rice Variety ‘Yulong 7’ in the Cold Region: Identification and Adaptability Analysis

作　　者：辛洪梅 Xin Hongmei(Crop Genetic Resources Institute,Heilongjiang Academy of Agricultural Sciences,Harbin 150086)

机构地区：[1]黑龙江省农业科学院作物资源研究所,哈尔滨150086

出　　处：《中国农学通报》2021年第15期1-6,共6页Chinese Agricultural Science Bulletin

基　　金：黑龙江省农业科学院“农业科技创新跨越工程”专项——寒地水稻种质资源创制与应用(HNK2019CX02)。

摘　　要：研究旨在对寒地水稻新品种‘育龙7号’的适应性进行分析,以期为寒地水稻品种的适应性育种提供参考。以‘育龙7号’为试材,在黑龙江省、内蒙古及湖北省对其生育日数、活动积温及公顷产量等性状进行调查分析。结果表明:‘育龙7号’不仅在其主要种植区域黑龙江省第一积温带能够取得较好的生产效果,而且在黑龙江省较低积温带、内蒙古和湖北省等地也取得了较好的引种鉴定效果,可以在一定范围内应用于生产。进一步分析表明:‘育龙7号’强大适应性来自于其丰富的遗传基础,以及较为合适的选择和鉴定方法。‘育龙7号’的适应性启示:利用适合当地生态条件的主栽品种做核心种质,适当添加新的基因源,才能提高水稻品种的适应性,扩大水稻品种的适种区域。The purpose of this study is to analyze the adaptability of a new rice variety‘Yulong 7’in the cold region, in order to provide reference for the adaptive breeding of rice varieties in the cold region. The rice variety‘Yulong 7’was used as material. The growth days, accumulated temperature and yield of hectare were investigated and analyzed in Heilongjiang Province, the Inner Mongolia Autonomous Region and Hubei Province. The results show that‘Yulong 7’could achieve not only good production in the first accumulative temperate zone of Heilongjiang Province, but also good introduction and identification results in the lower accumulative temperate zone of Heilongjiang Province, the Inner Mongolia Autonomous Region and Hubei Province, and it could be used in production in a certain range of area. Further analysis show that the strong adaptability of‘Yulong 7’comes from its rich genetic basis, as well as more suitable selection and identification methods. The adaptability of‘Yulong 7’reveals that only using the main cultivar suitable for local ecological conditions as the core germplasm and adding new gene sources can improve the adaptability and expand the suitable area of rice varieties.

关 键 词：水稻 寒地 育种 ‘育龙7号’ 引种 鉴定 适应性 

分 类 号：S511[农业科学—作物学]