摘要
为筛选冀东地区强筋小麦春季适宜的滴灌量,选用中麦886和中麦998两个强筋小麦品种,在拔节期和开花期进行春季滴灌,设置每次灌水0、300、450、600和750 m^(3)·hm^(-2)共5个处理(分别用W_(0)、W_(1)、W_(2)、W_(3)和W_(4)表示),比较分析了不同春季滴灌量下强筋小麦旗叶SPAD值、干物质积累与转运、籽粒灌浆速率、产量及其构成因素的差异。结果表明,强筋小麦花后旗叶SPAD值和籽粒灌浆持续时间均随滴灌量的增大而增加,干物质积累转运量和籽粒产量在0~600 m^(3)·hm^(-2)范围内对灌水量产生正向反应,当灌水量达到750 m^(3)·hm^(-2)时均显著降低。水分利用效率随灌水量的增加而降低。W3处理下,两个强筋小麦品种穗数、穗粒数、千粒重、产量均表现最优。综合考虑籽粒产量和水分利用效率,冀东地区强筋小麦拔节期和开花期滴灌量以每次600 m^(3)·hm^(-2)为最佳。
In order to screen the suitable irrigation amount for strong gluten wheat in the eastern Hebei region in spring,two strong gluten wheat varieties(Zhongmai 886 and Zhongmai 998)were selected as materials,with five irrigation treatments during the jointing and anthesis stages:no irrigation(W_(0)),300m^(3)·hm^(-2)(W_(1))each time,450m^(3)·hm^(-2)(W_(2))each time,600m^(3)·hm^(-2)(W_(3))each time,and 750m^(3)·hm^(-2)(W_(4))each time,the effects of drip irrigation on the SPAD value of flag leaves,dry matter accumulation and transportation,grain filling rate,yield,and yield components of strong gluten wheat were studied.The results showed that with the increase of drip irrigation amount,the SPAD value of flag leaves after anthesis of strong gluten wheat and the duration of grain filling increased.The accumulation and transportation of dry matter and grain yield increased in the range of 0-600m^(3)·hm^(-2),but significantly decreased at 750m^(3)·hm^(-2),while water use efficiency decreased.Under W 3 treatment,the two strong gluten wheat varieties showed the best performance in terms of spike number,grain number per spike,thousand-grain weight,and yield.Taking into account both grain yield and water use efficiency,the optimal drip irrigation amount for strong gluten wheat during jointing and anthesis periods in the eastern Hebei region is 600m^(3)·hm^(-2)each time.
作者
张灵鑫
李秉昌
张敏
毕经鑫
王文政
柳明阳
杨敏
蔡瑞国
ZHANG Lingxin;LI Bingchang;ZHANG Min;BI Jingxin;WANG Wenzheng;LIU Mingyang;YANG Min;CAI Ruiguo(College of Agronomy and Biotechnology,Hebei Normal University of Science and Technology/Hebei Key Laboratory of Crop Stress Biology,Changli,Hebei 066004,China;Qinhuangdao Fertilizer and Agricultural Water Conservation Technology Center,Qinhuangdao,Hebei 066000,China)
出处
《麦类作物学报》
北大核心
2025年第2期245-252,共8页
Journal of Triticeae Crops
基金
河北省自然科学基金项目(C2022407015)
秦皇岛市科学技术研究和发展计划项目(202002B007)。
关键词
强筋小麦
灌水量
SPAD
干物质
产量
Strong gluten wheat
Irrigation amount
SPAD
Dry matter
Yield
