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在毛主席关于“以粮为纲,全面发展”的方针指引下,我市柑桔生产发展很快.柑桔良种化程度日益提高,优良品种栽培面积不断扩大。近年来脐橙这一无核柑桔良种,已在许多国营农场和人民公社试种。但是脐橙这个品种,品质虽佳,落果严重。为解决脐橙的低产问题,1970年在全市大搞农用微生物群众性科学实验的推动下,中国农业科学院柑桔研究所进行了以“九二○”为主的多种植物激素防止脐橙落果的研究。两年(1970—1971)的试验结果证明,“九二○”能显著减少脐橙的生理落果。为了使这一科研成果迅速在生产上应用,1972年在重庆市科技局的领导下,开展了“九二○”在脐橙上应用的中间试验,现将试验结果报告如下。
Guided by Chairman Mao’s guideline of “taking grain as the key link and all-round development”, the citrus production in our city has been developing rapidly, and the degree of citrus seed improvement is increasing day by day, and the cultivated area of fine varieties is constantly expanding. In recent years, navel orange, a non-nuclear citrus seed, has been planted in many state-owned farms and people’s communes. However, this species of navel orange, although the quality is good, serious fruit drop. In order to solve the problem of low production of navel oranges, the Citrus Research Institute of Chinese Academy of Agricultural Sciences conducted a study on preventing the fall of navel orange with a variety of plant hormones mainly based on “920” under the impetus of mass scientific experiments of agricultural microorganisms in the city in 1970. . Two years (1970-1971) test results show that “920” can significantly reduce the physiological decline of navel oranges. In order to make this scientific research quickly applied in production, in 1972 under the leadership of the Chongqing Science and Technology Bureau, carried out “920” in the navel orange on the application of the intermediate test, the test results are reported below.