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苦痘病是苹果果实在贮藏中常见的生理病害,果实的含钙量对这种病害的发生可能有很大关系。据报导钙盐会使苦痘病减轻,实际上果实的含钙量和病害的发生没有相关性。因此对苦痘病的发生与钙的关系进行调查时有必要按钙的存在形态分别进行考察。本实验就是用各种提取剂从苹果果实和叶中提取钙,调查各组分中的钙含量与苦痘病发病的关系。供试材料,是从16个地方的果园采收的桔苹品种果实和叶片,取果实直径7厘米,大小一致的苹果,放在4℃环境下贮藏10周,出库
Bitter pit disease is a common physiological disease of apple fruit in storage. The calcium content of fruit may have a great relationship to the occurrence of this disease. It is reported that calcium salts will reduce bitter pit disease, in fact, the calcium content of fruit and the incidence of disease is not relevant. Therefore, the occurrence of bitter pit disease and the relationship between calcium investigation is necessary to examine the existence of calcium by the state. This experiment is to use a variety of extractants from apple fruit and leaf extract of calcium, calcium content of each component to investigate the relationship between the incidence of bitter pox disease. The materials tested were orange peel fruits and leaves harvested from orchards in 16 places. Fruits of 7 cm in diameter and the same size were placed in a 4 ℃ environment for 10 weeks,