高海拔地区小麦加代技术研究与应用  

Research and Application of Winter Wheat Generation-adding Technol⁃ogy in High Altitude Area

作　　者：张永鹏 魏迎春[1] ZHANG Yongpeng;WEI Yingchun(Institute of Agriculture,Tibet Academy of Agricultural and Animal Husbandry Sciences,Tibet Lhasa 850032,China)

机构地区：[1]西藏自治区农牧科学院农业研究所,西藏拉萨850032

出　　处：《西藏农业科技》2024年第3期23-26,共4页Tibet Journal of Agricultural Sciences

基　　金：西藏自治区农牧科学院农业研究所统筹项目“西藏冬小麦加代技术研究”(2021-XZNYS-TCXM-0006)。

摘　　要：为缩短育种年限,提高育种效率,加快西藏小麦老旧品种更替速度,提高粮食产量,保障全区粮食安全。以藏冬25号、山冬7号、兰天56号等30个适宜在高海拔地区种植的冬小麦品种为基础,通过低温春化,结合大田、温室及异地加代的方式,进行冬小麦一年三代加速育种技术研究。研究表明,不同冬小麦品种低温春化所需条件有所差异,春化加代后农艺性状有所变化,不同模式加代效率明显不同。可结合加代效果及实验环境条件,制定一种经济高效,适宜在高海拔地区进行小麦加代的技术方案,以此来提高育种效率。In order to expedite the breeding period,enhance the efficiency of breeding,accelerate the replacement of outdated wheat cultivars in Tibet,increase grain yield and guarantee regional food security,based on 30 winter wheat varieties such as Zangdong 25,Shandong 7 and Lantian 56,which are suitable for planting in high altitude area,this paper studied the one-year three-generation accelerated breeding technology of winter wheat through low temperature vernalization,combined with the methods of field,greenhouse and adding generations in other places.The results showed that different winter wheat varieties needed different conditions of low temperature vernalization.The agronomic traits changed after vernalization.The efficiency of different models was obviously different.According to the effect of generation-adding and the condition of experiment environment,a kind of economic and highefficient technical scheme of wheat generation-adding in high altitude area can be worked out to improve the breeding efficiency.

关 键 词：高海拔 冬小麦 加代 

分 类 号：S512.1[农业科学—作物学]