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上海桃果的生产,由于受气候条件和地理环境的影响,许多品种的果实成熟时在缝线处留有青斑、成熟不均匀。当桃果充分成熟时,缝线处和果顶部成熟度过高,肉质发软,而缝线背面特别是近果柄处肉质仍较硬。这类果实采收后,缝线处肉质很快褐变,降低了鲜食品质和加工产品的质量。关于桃青斑病的研究,至今未见有专题报道。本研究认为,“青斑”为一种生理病害,是由于果实发育期间降雨量大,或地下水位过高,导致某些营养元素在生理上失去平衡所致。深沟排水,和硬核前用2000ppm的B_9喷2—3次,能有效地克服这类生理病害的发生,使果实圆正,成熟期提前,色泽鲜艳,延长果品贮藏期。並有诱导一齐成熟的功能。
Shanghai peach fruit production, due to climatic conditions and the impact of geographical environment, many varieties of fruit mature at the streak left green spots, uneven maturity. When the peaches are fully ripe, the sutures and the top of the fruit are too mature and the flesh is soft, while the back of the suture, especially near the stalk, is still harder. After harvesting these fruits, the stalks rapidly brownish and reduce the quality of fresh food and processed products. There have been no special reports on peach blight. This study suggests that “green spot” is a physiological disease caused by the heavy rainfall during the fruit development or excessive groundwater level, resulting in the physiological imbalance of some nutrients. Deep groove drainage, and hard nuclei with 2000ppm B_9 spray 2-3 times, can effectively overcome the occurrence of such physiological diseases, so that the fruit is round, early maturity, bright color, extend the shelf life of fruits. And induce a mature function together.