华北农学报2025，Vol.40Issue(5)：87-95,9.DOI:10.7668/hbnxb.20195883
迟播条件下温度特征与小麦产量及品质的关系
Relationships Between Temperature Characteristics and Wheat Yield,and Quality under Delayed Sowing Conditions
摘要
Abstract
To investigate the effects of delayed sowing on the growth,development,grain yield and quality of wheat,Yunong 907(YN907)and Yunong 922(YN922),two new high yield and high quality wheat varieties,were selected as experimental materials.Three sowing dates were established:October 22nd(S1,the conventional sowing date),October 31 st(S2,delayed sowing by 9 days),and November 9th(S3,delayed sowing by 18 days).The study investigated the effects of delayed sowing on the phenological stages,grain yield and flour quality of wheat,and analyzed the relationship between temperature characteristics and wheat yield,and quality under de-layed sowing conditions.The results indicated that compared with the conventional sowing date,the full growth period of YN907 and YN922 was shortened with the delay of sowing date in both years.The accumulated temper-ature before winter and the average daily temperature before heading decreased with the delay of sowing date,while the average daily temperature and effective accumulated temperature after heading increased.The effective accumulated temperature of the full growth period showed a downward trend.The effective accumulated temperature of the full growth period of YN907 and YN922 in S3 treatment was 243.95,222.10℃·d lower than that in S1 treat-ment in 2022-2023,and 136.30,189.40 ℃·d lower in 2023-2024,respectively.The yield and its components decreased with the delay of sowing,with a yield reduction of 6.45％to 17.26％.Compared with the conventional sowing date,the wet gluten content and protein content increased under the delayed sowing conditions.Under the background of climate warming and the scale-up of the agricultural operation,the sowing date of wheat can be adjus-ted to adapt to the temperature change.YN907 and YN922 had the highest yield on October 22nd.Delaying the so-wing date to October 31st could maintain the higher yield level and increase the grain protein content.When the so-wing date continues to be postponed,the grain protein content will be significantly increased but the yield will be significantly decreased.关键词
小麦/迟播/温度特征/产量/品质Key words
Wheat/Delayed sowing/Temperature characteristic/Yield/Quality分类
农业科技引用本文复制引用
田培培,马耕,王晨阳,李庆成,赵嘉欣,李双静,卢素豪,张艳菲,张海艳,李巧云,殷贵鸿..迟播条件下温度特征与小麦产量及品质的关系[J].华北农学报,2025,40(5):87-95,9.基金项目
2022年度河南省重大科技专项(221100110700) （221100110700）
2023年度河南省重点研发项目(231111112900) （231111112900）
