KANG Hong-mei
Key Laboratory of Rare and Endangered Forest Plant of State Forestry Administration, Yunnan Academy of Forestry, Kunming 650201, ChinaZHANG Shan-shan
Key Laboratory of Rare and Endangered Forest Plant of State Forestry Administration, Yunnan Academy of Forestry, Kunming 650201, ChinaYANG Wen-zhong
Key Laboratory of Rare and Endangered Forest Plant of State Forestry Administration, Yunnan Academy of Forestry, Kunming 650201, ChinaFANG Bo
Key Laboratory of Rare and Endangered Forest Plant of State Forestry Administration, Yunnan Academy of Forestry, Kunming 650201, ChinaYunnan Academy of Forestry,Yunnan Academy of Forestry,Yunnan Academy of Forestry,Yunnan Academy of Forestry,Yunnan Academy of Forestry,Yunnan Academy of Forestry
In order to explore the effects of soil water content on physiology characters of Pinus wangii seedlings, the antioxidant activities in pine needles were studied under different soil moisture. The results showed that the activities of POD, SOD, CAT were high under 40%-80% of field capacity. With prolong of time, the permeability of cell plasma membrane reduced, and stress resistance weakened. The contents of proline, soluble sugar and soluble protein were high under 20%-40% of field capacity. Malondialdehyde (MDA) content was gradually increased with the increment of soil water content for 30 d. When soil water content was 40% of field capacity, MDA content was the lowest and stress resistance of seedlings was the strongest. Therefore, the survival of seedlings could be improved under 30%-50% of field capacity, and the seedlings grown in too much soil water did not over 30 days.
康洪梅,张珊珊,杨文忠,方波.土壤含水量对极小种群毛枝五针松幼苗抗氧化活性的影响[J].热带亚热带植物学报,2016,24(2):182~188
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