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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (17): 47-51.doi: 10.11924/j.issn.1000-6850.casb17050085

所属专题： 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

不同营养元素对缺水条件下油松保护酶活性及电导率的影响

李绳庆   

  1. 山西省关帝山国有林管理局 山西 吕梁 032104
  • 收稿日期:2017-05-18 修回日期:2017-12-18 接受日期:2017-12-22 出版日期:2018-06-20 发布日期:2018-06-20
  • 通讯作者: 李绳庆
  • 基金资助:
    山西省科技厅攻关项目“油松、落叶松、新疆杨优良品种选育及高效营林技术研究”(20120311014-1)。

Effects of Nutrient Elements on Activity of Protective Enzymes and Electrical Conductivity of Pinus tabulaeformis Under Water Deficiency

  • Received:2017-05-18 Revised:2017-12-18 Accepted:2017-12-22 Online:2018-06-20 Published:2018-06-20

摘要： 通过分析营养元素对油松抗旱能力的影响规律，以期为科学施肥提供理论依据。试验设置S1（常规对照）、S2（清水对照）、S3（N）、S4（NK）、S5（NPK）5个处理，3次重复。SOD活性S5在5、6、7、8月分别比S1处理提高了68.66%、64.54%、36.02%、30.03%，差异显著；POD活性S5分别高于S1处理79.96%、117.82%、51.65%、41.28%，差异显著；CAT活性S5在6、8月分别比S1提高了35.86%、33.51%，差异显著；PPO活性S5分别比S1提高92.18%、125.15%、74.95%、57.77%，差异显著；S5处理电导率始终处于最低值，分别比对照（S1）降低40.46%、24.73%、25.99%、55.55%，差异显著。S5对提高水分胁迫下油松幼苗保护酶活性和降低电导率效果最佳。

关键词: 龙眼, 龙眼, ISSR, 指纹图谱, 遗传关系

Abstract: [Objective] The study in order to provide a theoretical basis for scientific fertilization which by means of analyzes effects of nutrient elements on drought resistance of Pinus tabulaeformis. [Methods] the test set 5 treatment as S1 (routine control), S2 (clean water control), S3 (N), S4 (NK), S5 (NPK) and repeat 3 times. [results] The S5 treatment SOD activity that was higher than S1 treatment 68.66%,64.54%,36.02%,30.03% when in May, June, July and August and then had significant difference; POD activity that S5 was higher than S1 treatment as 79.96%,117.82%,51.65%,41.28% and then had significant difference; CAT activity S5 was higher than S1 treatment as 35.86%,33.51% when in June and August and then had significant difference; PPO activity S5 was higher than S1 treatment as 92.18%,125.15%,74.95%,57.77% and then had significant difference; The conductivity of S5 was always at lowest level, at the same times, it was lower than control(S1)treatment 40.46%,24.73%,25.99%,55.55% and then had significant difference; [Conclusion] S5 was the best treatment as to enhance the activity of protective enzymes and decrease the conductivity of Pinus tabulaeformis seedlings under water stress.