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自1994年始,我们连续两年用北京农业大学研制的果形剂处理新红星苹果。应用后的新红星果形和美国的“蛇果”相近,并在1995年全国中熟苹果评比中名列榜首。现将试验结果报告如下。 一、试材和方法 试验地设在发城镇王家山后村果园。土质为黄棕壤土,中等肥力,有机质含量0.82％,无水浇条件。供试品种为7年生和16年生新红星,面积为8亩。果形剂的喷施浓度为150倍,对照喷清水。喷施时间为1995年4月26日(盛花期)和5月18日。 花蕾露红期按20cm间距疏花序,每个花序留双花,并配合人工授粉,盛花期,用手动微型喷雾器喷每朵花的柱头一下,花托三面各一下;结合疏果定果,喷布第一遍药液后21天用相同方法喷布第二遍药液;在处理和对照中随机取样调查50林新红星,每株树按东、南、西、北、中五个方位,在树冠下部取5个果子,于1995年6月22日、7月30日、8月18日测量每个果子的纵径、横径,计算出果形指数。
Since the beginning of 1994, we have been processing New Star apple with fruit extract developed by Beijing Agricultural University for two consecutive years. After application of the new star fruit shape and the United States, “snake fruit” similar, and in 1995 the country mid-cooked apples ranked top. The test results are reported below. First, the test materials and methods Experimental ground located in the town of Wang Ka Shan town orchard. Soil is yellow brown soil, medium fertility, organic matter content of 0.82%, no water conditions. Test varieties for the 7-year-old and 16-year-old new red star, an area of 8 acres. Fructus injection of 150 times the concentration of control spray water. Spraying time for the April 26, 1995 (flowering) and May 18. Flower bud dew red according to 20cm spacing sparse inflorescence, each inflorescence leave double flowers, and with artificial pollination, full flowering, with a manual micro sprayer spray each stigma look, Tori three look at each; The first pass after 21 days using the same method of spraying the second pass solution; in the treatment and control random sampling of 50 forest new red star, each tree according to east, south, west, north, Five fruits were taken from the lower part of the crown, and the vertical and horizontal diameters of each fruit were measured on June 22, July 30 and August 18, 1995 to calculate the fruit shape index.