干旱区生态环境知识资源中心(Arid): Transpiration Efficiency of Grain Sorghum and Maize under Different Planting Geometries

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DOI	10.1080/15427528.2015.1071299
	Transpiration Efficiency of Grain Sorghum and Maize under Different Planting Geometries
	Reddy, Bharath K.; Angira, Brijesh; Blaser, Brock C.; Stewart, B. A.
通讯作者	Angira, B
来源期刊	JOURNAL OF CROP IMPROVEMENT
ISSN	1542-7528
EISSN	1542-7536
出版年	2015
卷号	29 期号:5 页码:619-635
英文摘要	The Texas High Plains are classified as a semiarid region, but have many characteristics of an arid region. Hence, in this region there is a need for technologies that can sustain crop production under limited water conditions. Planting geometries of grain sorghum (Sorghum bicolor L. Moench) and maize (Zea mays L.) were modified to determine the effect of space between plants on transpiration efficiency and its relation to yield parameters. Three planting geometries. clump (3 plants adjacent to each other), cluster (3 maize or 6 sorghum plants in clusters), and control (plants equally spaced) were studied in a greenhouse. The effect of plant geometry on transpiration efficiency (TE) was not significant, but there was a clear trend that the closer the plants were to each other, the greater the TE. The amount of water were required to produce 1 g biomass was 216, 223, and 231 for plants of equal population growing in clump, cluster, and equally spaced geometries, respectively, indicating a modification in microclimate. The clump treatments appeared to be about 2 degrees C cooler, and the relative humidity was about 3% higher than the control plants during part of the day in sorghum study 1. These findings suggest that under limited water conditions there may be ways to manipulate plant growth by plant geometry. However, TE is only one of several factors that affects crop yield, particularly in grain crops. Thus, a package of complementary technologies must be implemented to enhance biomass production and grain yield in dryland areas.
英文关键词	evapotranspiration microclimate planting geometries transpiration efficiency vapor pressure deficit
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000452738300008
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331472
作者单位	[Reddy, Bharath K.; Angira, Brijesh] Texas A&M Univ, Dept Soil & Crop Sci, Heep Ctr, College Stn, TX 77843 USA; [Blaser, Brock C.] WTAMU, Dept Agr Sci, Canyon, TX USA; [Stewart, B. A.] Dryland Agr Inst, Canyon, TX USA
推荐引用方式 GB/T 7714	Reddy, Bharath K.,Angira, Brijesh,Blaser, Brock C.,et al. Transpiration Efficiency of Grain Sorghum and Maize under Different Planting Geometries[J],2015,29(5):619-635.
APA	Reddy, Bharath K.,Angira, Brijesh,Blaser, Brock C.,&Stewart, B. A..(2015).Transpiration Efficiency of Grain Sorghum and Maize under Different Planting Geometries.JOURNAL OF CROP IMPROVEMENT,29(5),619-635.
MLA	Reddy, Bharath K.,et al."Transpiration Efficiency of Grain Sorghum and Maize under Different Planting Geometries".JOURNAL OF CROP IMPROVEMENT 29.5(2015):619-635.