马铃薯种质资源的抗旱性和水分利用效率评价  

Evaluation of Drought Resistance and Water Use Efficiency of Potato Germplasm Resources

作　　者：张小川 颉瑞霞 张国辉 余帮强 吴林科 郭志乾 Zhang Xiaochuan;Xie Ruixia;Zhang Guohui;Yu Bangqiang;Wu Linke;Guo Zhiqian(Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences/Guyuan Branch of National Potato Improvement Center,Guyuan,Ningxia 756000)

机构地区：[1]宁夏农林科学院固原分院/国家马铃薯改良中心固原分中心,宁夏固原756000

出　　处：《宁夏农林科技》2025年第2期9-18,共10页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏农业特色优势产业新品种选育专项(2019NYYZ01-1);固原市科技发展计划项目(2021GYKYF027);宁夏自然科学基金项目(2022AAC03464);财政部和农业农村部:国家现代农业产业技术体系(CARS-09-ES35)。

摘　　要：在干旱、半干旱地区,水分亏缺是导致马铃薯产量和品质下降的主要因素之一。在马铃薯种质资源抗旱鉴定双层顶部挡雨装置内,采用盆栽试验的方法,对20份马铃薯种质资源的抗旱性和水分利用效率进行研究,通过测定株高、茎粗、叶片SPAD值、单株结薯数、块茎鲜重、块茎干重,筛选耐旱性强、水分利用效率高的马铃薯种质资源。结果表明:698(T9613-14)、673(WK2)、479(Sebago)3个种质资源的抗旱性较强、水分利用效率较高,可作为种质创制和抗旱、高水分利用效率新品种选育的资源加以利用。In arid and semi-arid areas,water deficit is one of the main factors leading to the decline of potato yield and quality.In this experiment,the drought resistance and water use efficiency of 20 potato germplasm resources were studied by pot experiment in a double-layer top rain protection device.The potato germplasm resources with strong drought tolerance and high water use efficiency were screened by measuring plant height,stem diameter,leaf SPAD value,number of potatoes per plant,fresh tuber weight and dry tuber weight.The results showed that 698(T9613-14)、673(WK2)、479(Sebago)had stronger drought tolerance and higher water use efficiency,and could be further utilized as germplasm resources for creation and breeding of new varieties with drought tolerance and high water use efficiency.

关 键 词：马铃薯 种质资源 抗旱性 水分利用效率 

分 类 号：S532[农业科学—作物学]