摘要
田间条件下,以3个亚有限结荚习性大豆品种铁丰31、铁豆63和沈农12为试材,采用再裂区设计,考察不同密度及行距处理对不同大豆品种农艺性状及产量的影响。结果表明:缩小行距可以提高3个大豆品种的株高;增加密度,3个大豆品种的主茎节数、分枝数、单株荚数和单株粒重减少,结荚高度提高;不同行距处理条件下,大豆产量差异达到了极显著水平(P<0.01),行距为30 cm时,大豆产量最高;密度为25万株·hm-2,行距30 cm时,3个大豆品种产量最高,铁丰31、沈农12和铁豆63的产量分别为4 961.2,3 840.0和3 539.1 kg·hm-2。
Three soybean cultivars of Tiefeng 31,Tiedou 63 and Shennong 12 were used to study the effect of different plant densities and row spacing on agronomic characteristics and yield in field conditions. The results were as follows： The plant height was improved for three soybean cultivars in low row spacing. The nodes of main stem,branches,the pods per plant and the seeds weight per plant were reduced with plant density increased,but the height of lowest pod were improved. The soybean yield was significantly different（ P〈0. 01） in different row spacing. The soybean yield was the highest in row spacing 30 cm.The soybean yield of three cultivars were the highest in plant density 250 000 plant·ha^-1and row spacing 30 cm. The yield of Tiefeng 31,Shennong 12 and Tiedou 63 were 4 961. 2,3 840. 0 and 3 539. 1 kg·ha^-1,respectively.
出处
《大豆科学》
CAS
CSCD
北大核心
2015年第1期52-55,共4页
Soybean Science
基金
辽宁省博士科研启动基金(20091083)
辽宁省自然科学基金(2013020065)
国家大豆产业技术体系(CARS-04)
辽宁省科技厅科技攻关项目(201401677-2)
关键词
大豆
密度
行距
农艺性状
产量
Soybean
Plant density
Row spacing
Agronomic characteristics
Yield
