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林业科学 ›› 2008, Vol. 44 ›› Issue (9): 162-164.doi: 10.11707/j.1001-7488.20080929

• 论文 • 上一篇    下一篇

盆栽和地栽‘洛阳红’牡丹根系的碳氮代谢动态

刘志敏 孔德政 李永华 杨秋生   

  1. 河南农业大学林学园艺学院,郑州450002
  • 收稿日期:2007-07-13 修回日期:1900-01-01 出版日期:2008-09-25 发布日期:2008-09-25
  • 通讯作者: 杨秋生

Dynamic Carbon and Nitrogen Metabolism in Roots of Potted and Field Paeonia suffruticosa 'Luoyanghong'

Liu Zhimin,Kong Dezheng,Li Yonghua,Yang Qiusheng   

  1. College of Forestry and Horticulture,Henan Agricultural University Zhengzhou 450002
  • Received:2007-07-13 Revised:1900-01-01 Online:2008-09-25 Published:2008-09-25

关键词: 牡丹, 根系, 碳代谢, 氮代谢

Abstract: Dynamic carbon and nitrogen metabolism of Paeonia suffruticosa 'Luoyanghong' roots grown in pot and field in the growing circle was studied comparatively.The root vigor of both potted and field tree peony showed "bimodal peak" curve in the whole growing circle.Two peaks appeared respectively in florescence and in autumn when the roots grew rapidly.The root vigor of potted tree peony decreased by 24.7% and 37.4% compared with that of field tree peony.Soluble sugar and soluble protein content in tree peony roots increased and the starch and free amino acid content decreased in spring.Starch,soluble sugar and free amino acid content of roots in potted tree peony were 53%,4.9% and 223% higher respectively than those of field tree peony,the soluble protein content 4.1% lower in leaf-expansion stage.The content of the above four indexes increased in autumn.Starch,soluble sugar and soluble protein content of potted tree peony decreased by 35%,27% and 18.83% respectively in contrast with those of field tree peony,and the content of free amino acid increased by 23.8% in dormancy stage.The lower roots vigor of potted tree peony is one of main reasons that result in poor development.

Key words: Paeonia suffruticosa, roots, carbon metabolism, nitrogen metabolism