【作者】 陈得义； 葛超； 赵成昊； 徐娥； 王孝杰；

【Author】 Chen De-yi,Ge chao,Zhao Cheng-hao,Xu E,Wang Xiao-jie

【机构】 辽宁省丹东农业科学院； 辽宁丹玉种业科技股份有限公司；

【摘要】 以郑单958,中地77,丹玉405三种不同类型玉米为试验材料,研究四种不同密度下春玉米光合生理特性与产量的关系。结果表明:不同密度对产量的影响差异性显著,不同品种对产量的差异性不显著,同一品种不同密度下叶面积指数和净光合速率与产量呈正相关。本试验条件下,丹玉405最适密度为52500株·hm^-2,中地77最适密度为60000株·hm^-2,郑单958最适密度为52 500株·hm^-2。更多还原

【Abstract】 The study was carried on effects of different varieties and different densities on photosynthetic physiological characteristics and yield of maize with Zhengdan 958,Zhongdi 77 and Danyu 405.The results showed that effects of different densities on yield were significant difference,effects of different varieties on yield weren’ t significant difference,There was a positive correlation between the leaf area index,photosynthetic rate and yield under same cultivar and different plantting densities This experiment condition,the suitable planting density range was 52500 plants ha^-1 for Danyu 405 and Zhengdan 958,and 60000 plants ha^-1 for Zhongdi 77.更多还原