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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (16): 109-112.

• 林学 园艺 园林 • 上一篇    下一篇

K-IBA处理对仿栗秋季扦插生根的影响

李志辉 刘延青   

  • 收稿日期:2010-03-26 修回日期:2010-05-20 出版日期:2010-08-20 发布日期:2010-08-20
  • 基金资助:
    高产能源植物选育及其资源高效利用”

Effects of K-IBA Treatments on Autumn-Cutting Rooting of Sloanea hemsleyana

  • Received:2010-03-26 Revised:2010-05-20 Online:2010-08-20 Published:2010-08-20

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摘要： 摘　要：以仿栗秋季健壮枝条为材料，进行秋季扦插，并研究生根过程中过氧化物酶(POD)酶活性、超氧化物歧化酶(SOD)酶活性和丙二醛（MDA）含量的动态变化。结果表明: K-IBA-3000mg/kg处理的生根率最高为78%，KNAA-1000mg/kg处理的生根率最低为13% ，K-IBA处理的三个浓度生根率排序为：K-IBA-3000mg/kg（78%）﹥K-IBA-1000mg/kg（63%）﹥K-IBA-5000mg/kg（38%）。仿栗秋季扦插生根过程中，SOD酶活性呈现先上升后下降的趋势，插后20 d达最大值，之后逐渐降低；POD酶活性和SOD酶活性变化情况相似；MDA含量先迅速积累，插后约20 d出现峰值，随后一直下降。 关键词：仿栗；秋季扦插；生根率；酶活性

关键词: 奶牛血浆, 奶牛血浆, 蛋白质组, 双向凝胶电泳

Abstract: Abstract:　Cuttings propagation technology of Sloanea hemsleyana autumn robust branches studied with dynamic changes of peroxidase (POD) activity，superoxide dismutase (SOD) activity and malondialdehyde (MDA) content during rooting . The results showed that cuttings with K-IBA-3000mg/kg treatment has the highest rooting percentage which was 78%，cuttings with KNAA-1000mg/kg treatment has the lowest rooting percentage which was 13%，the rank of the K-IBA treatment was: K-IBA-3000mg/kg（78%）﹥K-IBA-1000mg/kg（63%）﹥K-IBA-5000mg/kg（38%）. During rooting of Sloanea hemsleyana autumn cutting，the superoxide dismutase activity increased first and then declined，and have a peak on the 20th. The peroxidase activity changes were siilar to the superoxide dismutase activity. The malondialdehyde content accumulated first rapidly，and then declined all the time，it has a peak on the 20th. Key words:　 Sloanea hemsleyana; autumn cutting; rooting rate; enzymic activity