Effect of Different Ways of Floral Clusters Pruning on Fruit Quality of'Jumeigui'Grape(Vitis vinifera×V.labrusca)
Taking floral clusters of 5-year-old'Jumeigui'grapes as test material,different floral clusters thinning treatments were conducted before anthesis 2-3 days to investigate the influence of different thinning ways on fruit qualities.The results showed that all flower thinning treatments could improve berry weight,total soluble solid content,hardness and coloring degree of grape skin in some extent,decrease content of titratable acid,the fruit quality was improved significantly,and the best effect was to preserve the cluster tip treatment There were significant differences in work efficiency,with the highest efficiency of the 9 cm cluster tip leaving and the lowest efficiency of interval spikelet pruning.The results of the comprehensive evaluation were the leaving spikelet tip 7 cm＞the leaving spikelet tip 9 cm＞the leaving spikelet tip 5 cm＞the interval pruning spikelet＞the no pruning spikelet＞the removing secondary ear and spike tip of clusters.In conclusion,the treatment of the tip length of the floral clusters 7 cm could significantly increase the berry weight and total soluble solids,that had the lower titratable acid content,the best fruit maturity,the significantly deepened skin color and the best comprehensive quality,so it might be the most suitable floral clusters pruning method for'Jumeigui'grape.
万方数据
