Controlling effect of agave leaf juice to postharvest mango anthracnose and physiology indexes of resistance.
Chang JinMei, Zhan RuLin, Liu Feng, Zhao YanLong
Author Affiliation: South Subtropical Crops Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China.
Journal of Fruit Science 30 : 865-870
Abstract : Objective: The objective of the study was to investigate the controlling effects of agave leaf juice on anthracnose incidence as well as the correlation between some physiology indexes and the resistance. Method: 'Xiaoxiangya' mango and different species of agave which were produced at South Subtropical Crops Research Institute, zhanjiang city were used as the experimental materials. The inhibitory test to Colletotrichum gloeosporioides has been studied by agave leaf juice of different species. Then the prevent trial of mango fruit anthracnose were carried out by the Mexican maguey leaf juice, at the same time, physiology indexes of resistance was test. Result: The results showed that Mexican maguey leaf juice has the best inhibiting effect to C. gloeosporioides in the 5 different cultivated varieties. In the storage period, mango fruit anthracnose was controlled effectively and the inhibiting effect reached to 60.62% at the thirteenth days, compared with the control, the treatment delayed the increase of total soluble protein content and activity of peroxidase (POD), decrease of phenylalanine ammonia lyase (PAL), however, the C. gloeosporioides accelerated the trend. Conclusion: Mexican maguey leaf juice could effectively control postharvest mango anthracnose through inhibiting C. gloeosporioides growth and delaying fruit senescence process.