Regulation and control method for improving fruit quality of summer black grapes

Abstract

The invention discloses a regulation and control method for improving the fruit quality of summer black grapes. The regulation and control method comprises the following steps: carrying out uniform cluster dipping treatment by adopting a mixed solution of 25 ppm of gibberellic acid, 5 ppm of an anti-falling element, 2.5 ppm of thidiazuron and 200 ppm of streptomycin in a cluster lengthening stage,then carrying out flower cluster shaping on grapes, and in 5-7 days after flowers fall, carrying out uniform expansion treatment on the flower clusters by using 25 ppm of gibberellic acid and 3 ppm of thidiazuron. According to the invention, by adoption of cluster dipping treatment with medicament and timely flower cluster shaping in the cluster lengthening stage, distribution of plant hormones in the flower clusters is regulated, so the fruit setting of the summer black grapes which cannot naturally set fruits is improved; meanwhile, the flower clusters can be lengthened; fruit grain gaps can be increased; the effect of easily thinning fruits is achieved; operation for fruit retention with a regulator is reduced; nutrient competition of flower buds in the flowering process is reduced; the sizes of grape clusters are controlled; the fruits are increased in size; and the fruit quality is improved.

Description

technical field [0001] The invention relates to the field of crop quality control, in particular to a control method for improving fruit quality of 'Xiahei' grapes. Background technique [0002] With the improvement of horticultural cultivation technology, my country's viticulture technology has developed rapidly. The cultivation technology varies greatly from place to place, and the cultivation models are also different. Xiahei grape is a triploid seedless variety, so Xiahei naturally has poor fruit setting and serious flower and fruit drop. , the fruit is small and the yield is low, so the summer black must be treated with plant growth regulators to preserve and expand the fruit, so that the fruit is commercially available. However, due to the influence of natural conditions such as temperature and moisture between years, the fruit setting rate of 'Summer Black' grapes is quite different. Fruit preservation treatment, fruit expansion period expansion treatment, these three...

AI Technical Summary

Problems solved by technology

However, due to the influence of natural conditions such as temperature and moisture between years, the fruit setting rate of 'Summer Black' grapes varies greatly. Fruit preservation treatment, fruit expansion period expansion treatment, these three steps of treatment require a very strict treatment period, require a lot of material and labor, and due to excessive treatment times, low sugar content, astringent peel, poor coloring and other quality problems

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