Effects of Lateral Shoot Treatment on Photosynthesis and Fruit Quality of Cabernet Sauvignon Grape
Liu Wanhao
Tang Meiling
Wang Hengzhen
Zheng Qiuling
Zhang Chaojie
Wang Ting
Liu Shenkun
Xiao Huilin
Guan Xueqiang
Wang Shiping
Abstract：Using the late -maturing wine grape variety Cabernet Sauvignon as material,the impacts of lateral shoot treatment on photosynthesis of new shoots,fruit quality and nutrition storage in branches of grape were studied through controlling the number of leaves on the lateral shoots.The results indicated that the treat-ment of keeping 5 leaves and pinching significantly increased the canopy thickness.The leaf photosynthetic rate of different treatments performed differently along with the phenological period.In the period of fruiting period,the maximum leaf net photosynthetic rate appeared at the 5th node,while in enlargement and veraison period,the maximum leaf net photosynthetic rate appeared at the 7th node and 9th node respectively.Keeping 1 leaves and pinching and keeping 2 leaves and pinching treatment respectively increased the total sugar con-tent and soluble solids content in fruits.Reserving lateral shoot leaves improved the nutrition storage and matu-rity of branches,especially the treatment of keeping 2 leaves and pinching.In general,keeping 2 leaves and pinching treatment was benefit for the fruit quality and nutrition storage in branches.
Keywords：GrapeLateral shoot treatmentPhotosynthetic capacityFruit qualityNutrition storage
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 60-64 )