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园艺学报 ›› 2007, Vol. 34 ›› Issue (5): 1273-1278.

• 研究报告 • 上一篇    下一篇

施用硼、钼与PP333对细叶结缕草抗寒性的影响

邵 玲;梁广坚*;钟镜波
  

  1. (肇庆学院生物系,广东肇庆 526061)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-10-25 发布日期:2007-10-25

Effect of PP333 and Boron, Molybdenum on Cold Resistance of Zoysia tenuifolia

SHAO Ling; LIANG Guang-jian*;ZHONG Jing-bo   

  1. (Department of Biology, Zhaoqing University, Zhaoqing, Guangdong 526061,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-25 Published:2007-10-25

摘要: 研究了硼、钼与PP333处理对暖季型细叶结缕草抗寒性的影响。结果表明:PP333与硼、钼施用提高了低温胁迫后细叶结缕草叶片可溶性蛋白、可溶性糖和游离脯氨酸的含量,细胞的渗透调节能力增强。其中,PP333+硼+钼混施的作用效果更大,MDA含量显著低于对照(P<0.01),质膜相对透性最小,叶片的SOD、POD和APX酶活性明显高于对照或硼、钼处理的,叶绿体色素降解延缓,较好地促进低温胁迫(1℃,3 d)后草坪草的恢复生长。

关键词: 细叶结缕草, 多效唑, 硼, 钼, 抗寒性

Abstract: The effect of boron,molybdenum(B+Mo),PP333, and PP333+B+Mo treaments on cold resistance of warm season Zoysia tenuifolia was studied.The results showed that PP333 or/and (B+Mo) increased the contents of soluble protein, soluble sugar and free proline inZoysia tenuifolia, the ability of cellular osmoregulation was strengthened. The effect of application of PP333+B+Mo in combination was the best, the contents of malonaldehyde (MDA) decreased significantly compared with control(P<0.01)and the relative osmotic ability of membrane was minimum. Compared with control or (B+Mo) application, the activities of superoxide dismutase (SOD) and peroxidase (POD) and ascorbate peroxidase (APX) in leaves obviously increased, and the speed of pigment of chloroplast decomposition slowed down. So the treatment of (PP333+B+Mo) could promote the recovery growth of turf grass under 1℃ for 3 d.

Key words: Zoysia tenuifolia, PP333, Boron, Molybdenum, Cold resistance