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哈姆林甜橙是世界上主要汁用甜橙品种之一,主产美国佛州和巴西。仅巴西年产哈姆林就达131万吨,面积21800多公顷。我省1965年自摩洛哥引入后,经试种,表观为早熟,甜酸适口,具香气,是鲜食和加工皆宜的甜橙品种。我所山站选出的哈姆林8—1单株在1981—1984年连续四年由省农业厅主办的品质鉴评会上获得甜橙类第一名。然其果形较小有待改良。为了获得大果、少核或无核的优质甜橙,满足鲜销市场和加工业的要求,我们近年来开展了辐射诱变与田间优变单株的选育工作,兹将一大果无核哈姆林单株的选种结果初报如下:
Hamlin Sweet Orange is one of the main orange juice varieties in the world, mainly producing Florida and Brazil. Only Brazil, with an annual output of Hamlin reached 1.31 million tons, an area of more than 21,800 hectares. After the introduction of our province in 1965 from Morocco, after the trial, the appearance of premature, sweet and sour taste, aroma, is fresh and processed orange varieties. The Hamlin 8-1 plant selected by My Hill Station won first place in the category of sweet oranges at the Quality Appraisal Conference organized by the Provincial Department of Agriculture for the fourth consecutive year from 1981 to 1984. However, its fruit shape is smaller to be improved. In order to obtain high-quality, less-nuclear or non-nuclear quality sweet oranges, to meet the requirements of the market for fresh foods and processing industry, we conducted radiation breeding and field selection of individual plants in recent years. Nuclear Hamlin single seed selection results are as follows: