连旱对夏玉米叶绿素荧光特性、产量和水分利用效率的影响

• Published in: Guanʻgai paishui xuebao Vol. 42; no. 3; pp. 26 - 39
• Main Authors: LI, Yanbin, LU Zhengguang, LI, Daoxi, ZHOU Tingquan, HOU Haosen, LIU, Huan, YANG, Peiwen
• Format: Journal Article
• Language: Chinese; English
• Published: Xinxiang City Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 01.03.2023; 华北水利水电大学,郑州 450046
• Subjects: Agricultural production; Chlorophyll; Corn; Crop growth; Crop production; Crop yield; Crops; Drought; Drought resistance; Efficiency; Evaporation; Field capacity; Fluorescence; Jointing; Moisture content; Soil water; Water consumption; Water content; Water use; Water use efficiency; 水分利用效率; 连旱; 产量; 叶绿素荧光特性; 夏玉米

S161.4; [目的]探明连续干旱胁迫对夏玉米叶绿素荧光特性、产量和水分利用效率(WUE)的影响,为夏玉米抗旱稳产提供理论指导.[方法]选用夏玉米"DHA757"为供试品种,在拔节期(B)、抽雄期(C)和灌浆期(G)设置不同程度的干旱处理,分别为:正常(CK)、轻旱(1)、中旱(2)、重旱(3),分别对应田间持水率(FC)的(70％,80％]、(60％,70％]、(50％,60％]、(40％,50％].通过移动防雨棚下桶栽的方式控水,试验设置拔节期单旱2个,两阶段连旱(拔节—抽雄期)3个,三阶段连旱(拔节—抽雄—灌浆期)3个,研究了连旱胁迫对夏玉米耗水量、SPAD、Fv/...