摘要
以吉林省市场上常见的25个番茄品种为材料,研究了同一氮素水平不同番茄品种氮素吸收利用差异。结果表明:番茄总吸氮量和氮素利用效率的变幅分别为262.8～460.1 kg·hm-2和281～526 kg·kg-1。聚类分析表明,吸氮能力较弱、氮素利用效率较高、产量高的品种有4个:朝研219、瑞琦1号、四季粉红、佳粉19,产量平均值为145 754 kg·hm-2。相关分析及通径分析表明,总吸氮量与番茄产量呈显著正相关,并对提高番茄产量起主导作用。
Taking 25 tomato(Lycopersicon esculentum Mill.)varieties as material,we studied the differences in nitrogen absorption and utilization of different tomato varieties under the same nitrogen level.The result showed that the total nitrogen absorption and utilization amplitude of tomato was 262.8-460.1 kg·hm-2 and 281-526 kg·kg-1.The cluster analysis indicated that there were 4 varieties with low N absorption,high N utilization and high yield.They are'Chaoyan 219','Ruiqi No.1','Sijifenhong','Jiafen19'.The average yield was 145 754 kg·hm-2.The correlation and path analysis indicated that the total N absorption were positive linearly to tomato yield and had a dominant effect on improving tomato yield.
出处
《中国蔬菜》
北大核心
2011年第16期56-60,共5页
China Vegetables
基金
吉林省现代农业产业技术体系项目(2010005)
关键词
番茄
氮素吸收利用效率
品种差异
聚类分析
相关分析
通径分析
Tomato
N utilization efficiency
Variety differences
Cluster analysis
Correlation analysis
Path analysis
