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我县板栗,一九四九年只有7000亩,现在已发展到35500亩,产量由240万斤增加到近650万斤,栗农素有选择良种和嫁接板栗习惯,因此板栗产量逐年提高.但由于对提高板栗产量和质量综合因子缺乏研究,因此有的板栗品种虽能高产,但品质很差,不耐贮藏、风味差、抗逆性弱,这不仅对发展板栗生产不利,而且影响了出口. 一九七三年,根据迁西会议制订的“提高板栗产量质量”研究课题,我所同有单位协作进行了优良单株选择与利用的试验研
The chestnut of our county, with only 7,000 mu in 1949, has now grown to 35,500 mu and its output has increased from 2.4 million kg to nearly 6.5 million kg. The yield of chestnut has been increasing year by year because of the selection of fine varieties and chestnut grafting. Due to the lack of research on the factors that can increase the yield and quality of chestnut, some chestnut varieties can produce high yield but poor quality, poor storage, poor flavor and weak resistance, which not only adversely affects the development of chestnut but also affects the export In 1973, according to the research project entitled “Improving the Quality of Chinese Chestnut” formulated by Qianxi Conference, we conducted a pilot study on the selection and utilization of superior single plants in collaboration with other units