摘要
[目的]研究低温对小麦产量的影响。[方法]选取2017—2019年丰乐联合体黄淮南片区域试验和2019—2020年新世纪联合体生产试验汇总材料及同期各试点低温指标,利用空间系列数据分析低温对冬小麦产量的影响。[结果 ]越冬期<0℃天数、负积温与相对气象产量负相关,3月上中旬和4月上旬最低气温与相对气象产量正相关。多数品种和试点平均气象穗粒数与冬前<0℃天数、负积温正相关,与4月上旬最低气温正相关。[结论]该研究为小麦耐寒育种和趋利避害栽培提供了依据。
[Objective]The aim was to study the effect of low temperature on wheat yield.[Method]The summary materials of the regional test in the south of Huang-Huai area of Fengle consortium from 2017 to 2019 and the production test of the new century consortium from 2019 to 2020 and the low temperature indexes of each pilot in the same period were selected,and the influence of low temperature on winter wheat yield was analyzed by using spatial series data.[Result]The days of<0℃in wintering period and negative accumulated temperature were negatively correlated with relative meteorological yield.The minimum temperature in early and middle March and early April was positively correlated with relative meteorological yield.The average meteorological grain number per spike of most varieties and pilots was positively correlated with the days of<0℃before winter and negative accumulated temperature,and positively correlated with the minimum temperature in early April.[Conclusion]The research provided basis for cold-resistant breeding and cultivation of wheat.
作者
曾广飞
袁野
张红艳
周景春
张存岭
ZENG Guang-fei(Suixi County Agricultural Technology Extension Center,Suixi,Anhui 235100)
出处
《园艺与种苗》
CAS
2023年第3期90-93,共4页
Horticulture & Seed
关键词
小麦产量
低温
冻害和冷害
Wheat yield
Low temperature
Freezing and chilling injury
