| 【Objective】Regarding to the problems of increasing planting scale, backward cultivation management
technology and uneven fruit quality of apple peach in Guizhou, the effects of organic fertilizer application and bagging
treatment on the improvement of fruit quality of apple peach was discussed, in order to improve the quality and postharvest
preservation performance of apple peach fruit.【Method】With Prunus persica ‘apple’ Peach as test material, the effects
of organic fertilizer and organic fertilizer combined with bagging on the improvement of fruit quality and postharvest freshkeeping performance（compared with compound fertilizer treatment, CK）as well as the effect of bagging on pesticide residues were studied.【Result】The single fruit weight of organic fertilizer treatment was 232.35（±21.3）g, which
was increased by 39.8% compared with CK, but the fruit firmness, vitamin C, total acid and total sugar contents showed no
significant differences between the two treatments. Further more, the application of organic fertilizer delayed the softening
process of apple peach fruit during storage and prolonged the preservation period of about 1 week. The treatment of organic
fertilizer combined with bagging significantly reduced the total acid content by 24%, and increased the reducing sugar content
by 10.5% in peach fruit, and also reduced pesticide residues such as chlorpyrifos, cypermethrin and imidacloprid compared
with organic fertilizer treatment, while the fruit weight, fruit firmness and total soluble solids content showed no significant
differences. Further more, the treatment of organic fertilizer combined with bagging reduced the weight loss rate of apple peach
fruit during postharvest cold storage.【Conclusion】The application of organic fertilizer combined with bagging had good effect
on improving fruit quality, and could effectively improve the postharvest preservation performance of apple peach fruit. |
