干旱区生态环境知识资源中心(Arid): 密度调控对半干旱区不同株型玉米品种冠层和产量指标的影响

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	密度调控对半干旱区不同株型玉米品种冠层和产量指标的影响
其他题名	Effect of Planting Density Regulation on Canopy and Yield Parameters in Maize Varieties with Different Planting Types in Semi-arid Region
	郭春明 1; 王雪 2; 赵鑫 3; 梁烜赫 3; 曹铁华 3
来源期刊	玉米科学
ISSN	1005-0906
出版年	2017
卷号	25 期号:6 页码:113-118
中文摘要	以平展型玉米品种和紧凑型玉米品种为材料,2012~2013年在吉林省西部半干旱区研究密度调控对不同类型玉米品种干旱胁迫条件下冠层和产量指标的影响。结果表明,在两年玉米灌浆期均出现中度干旱条件下,不同类型玉米品种种植密度和叶面积指数、消光系数均呈显著直线回归关系,密度和群体生长速度、果穗生长速度和产量呈先上升后下降的单峰曲线关系。通过回归方程计算,平展型和紧凑型品种最佳种植密度分别为5.4万株/hm2和6.3万株/hm2。相对于平展型品种,紧凑型品种平均群体生长速度和穗生长速度可以在更高种植密度条件下达到峰值。紧凑型品种在协调个体与群体适应性方面强于平展型品种,更容易适应干旱环境。
英文摘要	The effects of planting density regulation on canopy and yield components of maize varieties of different types in drought stress were studied from 2012 to 2013 in Taonan City, where located on semi- arid region of west of Jilin province, by using flat-type maize variety and compact maize varieties. The results showed that in the condition of moderate drought appearance during grain filling stage in both of two years, the relationship of planting density of maize varieties of different types and leaf area index as well as extinction coefficient was significant linear-regression relationship, however, planting density and speed of population and cluster growth as well as yield showed single curve relationship which was a trend of rise first then fall. The best planting densities of flat-type and compact maize varieties, which were calculated via regulation equation, were 54 000 and 63 000 per hectare, respectively. The average speed of population and cluster growth in flat-type maize variety, compared with compact variety, could reach a peak under higher planting density. These results revealed that flat-type variety was better than compact variety on adaption of single population, and easier to adapt the arid environment.
中文关键词	玉米 ; 密度调控 ; 紧凑型品种 ; 平展型品种
英文关键词	Maize Planting density regulation Flat-type variety Compact variety
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6140588
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236927
作者单位	1.吉林省气象科学研究所, 长春, 吉林 130033, 中国; 2.吉林省国际人才交流服务中心, 长春, 吉林 130022, 中国; 3.吉林省农业科学院农业资源与环境研究所, 长春, 吉林 130033, 中国
推荐引用方式 GB/T 7714	郭春明,王雪,赵鑫,等. 密度调控对半干旱区不同株型玉米品种冠层和产量指标的影响[J],2017,25(6):113-118.
APA	郭春明,王雪,赵鑫,梁烜赫,&曹铁华.(2017).密度调控对半干旱区不同株型玉米品种冠层和产量指标的影响.玉米科学,25(6),113-118.
MLA	郭春明,et al."密度调控对半干旱区不同株型玉米品种冠层和产量指标的影响".玉米科学 25.6(2017):113-118.