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Journal of Agriculture ›› 2018, Vol. 8 ›› Issue (3): -.doi: 10.11923/j.issn.2095-4050.cjas16120029

Special Issue: 园艺

   

Effect of Leaf Picking on Fruit Quality of‘Cabernet Sauvignon’

  

  • Received:2016-12-28 Revised:2017-08-21 Accepted:2017-09-25 Online:2018-03-21 Published:2018-03-21

Abstract: Take ''Cabernet Sauvignon'' grape as experiments materials, the effect of 3 defoliation treatments:remove all leaves around the cluster , keep one leave near the cluster, keep only the petioles around the cluster, with all leaves retained as contol, the fruit quality of the berries was studied. The results showed that the grain of treatment that keep one leave near the cluster, and the one that keep only the petioles around the cluster resulted in higher weight. There were no significant differences in the ear weight, branch maturity and soluble solids index. All 3 defoliation treatments resulted in higher fruit hardness, treatment that keep one leave near the cluster resulted better than the one that keep only the petioles around the cluster. There was no significant difference in L value between treatment that keep one leave near the cluster and the control, when it comes to the a values and b values, treatment that keep one leave near the cluster resulted higher value than other treatments. no significant difference showed in total sugar content, titratable acid content, sugar / acid and solid / acid index. All 3 defoliation treatments results in higher content of organic acids. In comprehensive evaluation, treatment that keep one leave near the cluster is the suitable way to improve the quality of ''Cabernet Sauvignon'' grape fruit.