Method for controlling pineapple black-heart by using salicylic acid

Abstract

The invention discloses a method for controlling pineapple black-heart by using salicylic acid. The method comprises the following steps of: spraying 1-200mg / L of a salicylic acid solution onto the surfaces of pineapple fruits 25-40 days before picking pineapples; and airing and storing the pineapples in a refrigerator of 8-12 DEG C after picking the pineapples. According to the method, 1-200mg / L of the salicylic acid solution is sprayed onto the surfaces of the pineapple fruits 25-40 days before picking of the pineapples, so that the polyphenol oxidase activity and peroxidase activity of the pineapples can be lowered effectively, and the pineapple black-heart is controlled effectively. The method has the advantages of easiness in operating, low cost, high application efficiency and easiness in popularizing; meanwhile, the storage period of the pineapples is prolonged, the economic losses of dealers can be effectively reduced, the problem of difficulty for peasants to sell pineapples is solved, and the enthusiasm of pineapple planting of the peasants is protected; and the pineapples can also be sold to countries all over the world by adopting shipping, so that more foreign currencies are earned for China, and a good economic benefit and a good social benefit are achieved.

Description

technical field [0001] The invention belongs to the technical field of pineapple preservation, in particular to a method for controlling pineapple black heart disease by using salicylic acid. Background technique [0002] Pineapple (Ananas comosus (Linn.) Merrill) is a perennial evergreen herbaceous fruit tree of the family Bromeliaceae (Ananas Miller). First, it has become a pillar industry of the rural economy in South China. According to FAO statistics, my country's pineapple output in 2007 was 1.44 million tons, ranking third in Asia and fourth in the world, accounting for 7.63% of the world's total pineapple output. However, the post-harvest loss of pineapple is quite alarming. Some data show that 21% to 50% or even more pineapple is lost after harvest. Black Heart (or Endogenous Brown Spot) is one of the main diseases of pineapple, and has become an important hazard of fresh pineapple during shipping and refrigeration. Pineapple black heart disease mostly occurs in ...

AI Technical Summary

Problems solved by technology

However, due to the complexity of the occurrence mechanism of pineapple black heart disease, no effective method for controlling black heart disease has been found at present. The above methods can only reduce the occurrence of black heart disease to a certain extent.

However, there is no report on the control of pineapple black heart disease