石门烟区不同海拔高度荞麦品种(系)生态适应性研究  

Ecological Adaptability of Buckwheat Cultivars at Different Altitudes in the Tobacco-Planting Area of Shimen

作　　者：艾季翔 杨学乐 曹明锋 梅光军 朱益 向德虎 钟艮平 李基光 AI Ji-xiang;YANG Xue-le;CAO Ming-feng;MEI Guang-jun;ZHU Yi;XIANG De-hu;ZHONG Gen-ping;LI Ji-guang(Changde Company,Hunan Tobacco Company,Changde 415000,PRC;Crop Research Institute of Hunan Province,Changsha 410125,PRC)

机构地区：[1]湖南省烟草公司常德市公司,湖南常德415000 [2]湖南省作物研究所,湖南长沙410125

出　　处：《湖南农业科学》2024年第11期10-16,共7页Hunan Agricultural Sciences

基　　金：常德市烟草公司项目(CD2023KJ02);国家作物种质资源库(NCGRC-2023-056);湖南省农业种质资源保护与利用(湘财农指[2023]0043号);湖南省旱粮产业技术体系项目(湘农发[2019]105号)。

摘　　要：为明确石门烟区不同海拔高度对荞麦农艺性状和产量的影响,筛选出适宜种植的荞麦品种,研究选取了12份不同品种(系)的荞麦材料,分别种植于海拔为169.9、383.5、750.8、1250.4 m的4个试验点进行双因素随机区组试验,并对农艺性状和产量进行比较分析。结果表明:海拔1200 m以上的试验点因霜降早造成荞麦未能成熟,其他3个试验点荞麦均正常成熟;随着海拔的升高,荞麦生育期延长;不同试验点荞麦的株高、主茎分枝数、单株粒重、千粒重差异显著;海拔和品种对荞麦产量有极显著影响;凤苦1号(QM-4)和ZY-67(QM-11)在3个试验点的丰产性和稳产性较好,可在石门烟区海拔750 m以下区域推广种植。This study investigated the effects of altitudes on the agronomic traits and yield of buckwheat in the tobacco-planting area in Shimen,aiming to screen the cultivars suitable for planting in this area.A two-factor experiment with a randomized block design was conducted with 12 buckwheat cultivars planted at four altitudes(169.9,383.5,750.8,and 1250.4 m),and the agronomic traits and yields were compared.The results showed that due to early frost,the buckwheat plants growing above 1200 m did not mature,while those at the other three altitudes showed normal growth.The growth period of buckwheat extended as the altitude elevated.The plant height,number of branches on the main stem,seed weight per plant,and thousand-seed weight showed significant differences among different altitudes,indicating that the altitude and cultivar significantly affected the buckwheat yield.'Fengku No.1'(QM-4)and'ZY-67'(QM-11)demonstrated high and stable yields at three altitudes,being suitable to be planted at the altitude below 750 m in the tobacco-planting area of Shimen.

关 键 词：荞麦 海拔 品种 农艺性状 产量 石门 

分 类 号：S517[农业科学—作物学]