摘要
１９９６年进行生化腐植酸防治苹果轮纹病的试验，结果表明，生化腐植酸中的活性物质刺激果树，改变了果树的生理生化指标，提高了果树自身营养调控能力和对环境的适应能力，增强了酶活性（ＳＯＤ），改善了新陈代谢过程，致使果树内固有抗菌性物质酚酸成分明显增加，有效地控制了轮纹病发病率。光合作用的加强，促进了果树体内物质的合成、运送和积累，气孔开度的改变，提高了抗性。结果衰弱果树得以复壮，农药药效得以发挥，使轮纹病发病率下降到４０％以下。
Biochmicah humic acid (BHA) was applied to prevent and control apple tree disease caused by Physalospora piricola in 1996. The results proved that the active substances in BHA provoked apple trees and improved their nutrition regulation and adaptability to environment along with the change of physiological and biochemical index. Activity of super oxide dismutase (SOD) and the process of metabolism in apple trees were strengthened.Thus the content of phenolic acids,a kind of inherent anti biotic substances in apple trees were significantly increased,and P.piricola disease rate was reduced,photosynthesis was enhanced, synthesis was promoted. And nutrition in apple trees was accumulated. The opening degree of stomata was changed also. It′s concluded that weak apple trees were rejuvenated and the pesticide′s effect could be brought into full play. The rate of the disease could be reduced to less than 40%.
出处
《林业科学研究》
CSCD
北大核心
1998年第6期623-628,共6页
Forest Research
基金
中国林业科学研究院基金
关键词
生化腐植酸
苹果
轮纹病
生理生化指标
biochemical humic acid apple trees ring spot Physalospora piricola physiological and biochemical index
