花生不同类型品种氮素利用效率的研究

采用盆栽和15N示踪技术 ,研究了花生不同类型品种的N素吸收效率、N素生理利用效率和N素利用效率。结果表明 :花生的N素吸收效率、N素生理利用效率、N素利用效率不同类型品种间存在显著差异。 3项指标均以龙生型品种西洋生为最高 ,以多粒型品种四粒红最低。前者是后者的 4倍以上。所吸收的N向各器官的分配 ,不同类型品种差异显著。向生殖器官分配最多的中间型品种鲁花 3号比最少的四粒红多73 92 %。荚果产量西洋生是四粒红的 4倍多

Study on nitrogen utilization ratio of peanut varieties with different botany characters

The study on the nitrogen absorbing ratio, physiological utilization ratio and utilization ratio of peanut varieties with different botany characters was conducted with pot culture method and 15N tracer technique. fne result demonstrated that the nitrogen absorbing ratio, physiological utilization ratio and utilization ratio had significant differences among different types and varieties, with vining small kernel type (variety hirsuta Kohler)Xiyangsheng higheast, over four times higher than the lowest multiple kernel type Silihong. The partition of absorbed nitrogen to different organs had significant difference among different types and varieties. The nitrogen amount distributed to reproductive organ for the middle type Luhua3 was highest, 73.92% higher than the lowest Silihong.The pod yield of Xiyangsheng was over four times higher than that of Silihong.