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葡萄无核果的形成、座果的多少以及花穗的生长,与花前链霉素处理有关。因此,把握住处理适期是提高葡萄果实无核化的关键。第一次处理用链霉素和赤酸酸混合喷布,处理适期为盛花前14—16日,最适时期为盛花前11—8日。处理浓度为100ppm 的赤霉酸溶液中加200ppm 的链霉素。亦霉酸溶液中加用链霉素后,果穗重、座果数、糖度和酸度与单用赤霉酸处理的比较并无显著差异,但无核果率明显提高(为88.3—97.9%);对照为65.4—80.9%。处理适期根据树势强弱稍有变化。树势弱的处理适期在盛花前8日左右;树势强的
The formation of grapes without fruit, the number of fruit and flower spikes growth, and pre-streptomycin treatment. Therefore, to grasp the appropriate treatment of grapes is to improve the core of non-nuclear fruit. The first treatment with streptomycin and red acid mixed spray, the appropriate period for the full bloom before 14-16 days, the most appropriate period for the bloom before 11-8 days. 200 ppm streptomycin was added to the gibberellic acid solution at a concentration of 100 ppm. When streptomycin was also added in the acid solution, there was no significant difference in fruit weight, fruit number, sugar content and acidity compared with the single treatment with GA3, but the fruitless rate increased significantly (88.3-97.9%). The control was 65.4-80.9%. The appropriate treatment based on the strength of the tree a slight change. Tree potential weak processing appropriate before the full bloom on the 8th; strong tree vigor