高原藜麦幼苗期抗寒性分析  

Analysis of Cold Resistance of Quinoah at Seedling Stage in Plateau

作　　者：沈菊 杨起楠 成明锁 SHEN Ju;YANG Qinan;CHENG Mingsuo(Wulan Meteorological Bureau in Qinghai Province,Wulan Qinghai 817100;Sanjiang Fertile Soil Agricultural Ecology Co.,Ltd.,Wulan Qinghai 817199)

机构地区：[1]青海省乌兰县气象局,青海乌兰817100 [2]三江沃土农业生态责任有限公司,青海乌兰817100

出　　处：《现代农业科技》2020年第19期9-11,共3页Modern Agricultural Science and Technology

基　　金：青海省防灾减灾重点实验室2020年开放基金项目“高原藜麦关键农时农事适宜气象条件研究”。

摘　　要：为了分析霜冻、低温冻害等气象灾害对柴达木盆地高原藜麦在播种期至幼苗期的影响,通过人工环境模拟试验和自然环境播种试验资料以及同期影响其生长发育的气象资料,利用统计分析法和对比分析法分析青藜1号播种至6叶的生长期与地温、草温以及≥0℃积温、<0℃负积温、最低温度持续时间等低温强度的关系。结果表明,高原藜麦试验田内幼苗期生长的温度下限达到-10℃,且低于0℃的持续时长在14 h左右时藜麦幼苗会进入休眠期;最低温度约低至-14.0℃,0℃以下的低温持续时长达15 h时会使藜麦幼苗致死枯萎。In order to analyze the influence of meteorological disasters such as frost,low temperature and frost damage on quinoah during sowing to seedling stage in the plateau of Qaidam Basin,based on the data of artificial environment simulation experiment and natural environment simulation experiment as well as the meteorological data affecting its growth and development in the same period,the relationship between the growth period of Quinoa 1 from sowing to six-leaf stage and the low temperature intensity such as ground temperature,grass temperature,accumulated temperature≥0℃,negative accumulated temperature<0℃and minimum temperature duration was analyzed by statistical analysis and comparative method.The results showed that the lower limit of seedling growth in this field reached-10℃,the seedlings would enter the dormancy period when the temperature was lower than 0℃for 14 hours,the lowest temperature was about-14.0℃,and the seedlings would die when the temperature was lower than 0℃for 15 hours.

关 键 词：高原藜麦 幼苗期 积温 负积温 抗寒能力 

分 类 号：S512.9[农业科学—作物学] S352.1