Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China

NWIPB OpenIR

	Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China
	Liu Yong'an ; Dou Quanwen ; Chen Zhiguo ; Zhao Deyong
	2010-07-04
发表期刊	AFRICAN JOURNAL OF AGRICULTURAL RESEARCH ; Liu, YA; Dou, QW; Chen, ZG; Zhao, DY.Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China,AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,2010,5(13):1598-1608
摘要	A pot experiment with five typical landraces (Heshangtou, Hongnong No. 1, Dingxi 24, Damaizi and Jieba), three modern varieties (Qingchun 533, Plateau 602 and Abbondanza) and two water levels was carried out in the present study. The result showed that fertile spike, plant height, grains number of main spike (except Dingxi 24), above ground dry material, grain yield and grain yield water use efficiency of all varieties decreased, but grain weight (except Qingchun 533 and Plateau 602) and harvest index (except Plateau 602) of all varieties increased from 70% to 40% field capacity. The landraces had more fertile spikes, higher plant height, more above ground dry material (except Jieba), higher evaporation transpiration and lower harvest index than modern varieties under both 70% and 40% field capacity. Modern varieties had more grain number of main spike and grain weight than landraces under 70% field capacity on the whole. Although Qingchun 533 and Abbondanza had higher leaf-level water use efficiency than other varieties from heading stage to 30 days after anthesis, still they had lower grain yield water use efficiency than Heshangtou, Dingxi 24 and Damaizi under 40% field capacity. Varieties with higher evaporation transpiration and above ground dry material (higher ability of soil moisture capture) always had higher grain yield, grain yield water use efficiency and drought tolerance under drought stress.; A pot experiment with five typical landraces (Heshangtou, Hongnong No. 1, Dingxi 24, Damaizi and Jieba), three modern varieties (Qingchun 533, Plateau 602 and Abbondanza) and two water levels was carried out in the present study. The result showed that fertile spike, plant height, grains number of main spike (except Dingxi 24), above ground dry material, grain yield and grain yield water use efficiency of all varieties decreased, but grain weight (except Qingchun 533 and Plateau 602) and harvest index (except Plateau 602) of all varieties increased from 70% to 40% field capacity. The landraces had more fertile spikes, higher plant height, more above ground dry material (except Jieba), higher evaporation transpiration and lower harvest index than modern varieties under both 70% and 40% field capacity. Modern varieties had more grain number of main spike and grain weight than landraces under 70% field capacity on the whole. Although Qingchun 533 and Abbondanza had higher leaf-level water use efficiency than other varieties from heading stage to 30 days after anthesis, still they had lower grain yield water use efficiency than Heshangtou, Dingxi 24 and Damaizi under 40% field capacity. Varieties with higher evaporation transpiration and above ground dry material (higher ability of soil moisture capture) always had higher grain yield, grain yield water use efficiency and drought tolerance under drought stress.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/56134
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Liu Yong'an,Dou Quanwen,Chen Zhiguo,et al. Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China[J]. AFRICAN JOURNAL OF AGRICULTURAL RESEARCH, Liu, YA; Dou, QW; Chen, ZG; Zhao, DY.Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China,AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,2010,5(13):1598-1608,2010.
APA	Liu Yong'an,Dou Quanwen,Chen Zhiguo,&Zhao Deyong.(2010).Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China.AFRICAN JOURNAL OF AGRICULTURAL RESEARCH.
MLA	Liu Yong'an,et al."Effect of drought on water use efficiency, agronomic traits and yield of spring wheat landraces and modern varieties in Northwest China".AFRICAN JOURNAL OF AGRICULTURAL RESEARCH (2010).