论文部分内容阅读
菠萝在贮运过程中,靠近果心基部的小果常出现褐色半透明小斑点,随后斑点扩大、颜色加深,最后除果皮完好外,整个果实内部变黑,丧失商品价值,统称“菠萝黑心病”或“内生褐斑病”。黑心病的发病特点是:1、发病率高,损失严重。据国外报道,夏威夷、澳大利亚和科特迪瓦的船运菠萝都曾因黑心病造成巨大损失。广东、广西和福建的外销菠萝也都不同程度受害。2、贮运期愈长,损失愈严重。据观察,20天、25天和30天贮期的黑心病损失率分别为13.8％、25.0％和
Pineapples in the storage and transportation process, the small fruit near the base of the fruit often appear brown translucent small spots, followed by spots to expand and deepen the color, and finally except the skin intact, the entire fruit black, loss of commodity value, collectively referred to as “pineapple black heart disease ”Or“ endogenous brown spot disease. ” The incidence of black heart disease is characterized by: 1, high incidence, serious loss. According to foreign reports, the shipments of pineapples from Hawaii, Australia and Cote d’Ivoire have caused huge losses due to black heart disease. Export pineapples from Guangdong, Guangxi and Fujian also suffered to varying degrees. 2, the longer the storage period, the more serious losses. It was observed that black-heart disease loss rates at 20, 25 and 30 days were 13.8% and 25.0%, respectively