191 This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ISSN: 2583-4053 Volume-2 Issue-1 || February 2023 || PP. 191-195 https://doi.org/10.55544/jrasb.2.1.27 Journal for Research in Applied Sciences and Biotechnology www.jrasb.com Effect of Pruning on Morphological and Biochemical Characteristics of Grapes (Vitis vinifera L.) Mohammad Nasim Qardash 1 , Fazlrabi Azizi 2 , Mehdi Alizadeh 3 , Esmaeil Seyfi 4 and Sadegh Atashi 5 1 Department of Horticulture, Faculty of Agriculture, Faryab University, Faryab, AFGHANISTAN. 2 Department of Horticulture, Faculty of Agriculture, Kunduz University, Kunduz, AFGHANISTAN. 3,4 Department of Horticulture, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IRAN. 5 Laboratory Instructor of department Horticultural Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IRAN. 1 Corresponding Author: mohamadnasim452@gmail.com www.jrasb.com || Vol. 2 No. 1 (2023): February Issue Received: 21-01-2023 Revised: 11-02-2023 Accepted: 21-02-2023 ABSTRACT The objectives of this study were to determine whether bud pruning severity impacts some pomological traits of white and red varieties of table grapes. Vine canes were pruned to 3 or 6 buds in 12-year-old vines in conventional systems. Results revealed that number of bunches, bunch weight, bunch width, number of shot berries, and berries per bunch was significantly (p<0.05) affected by the bud pruning, whereas bud pruning had no significant effect on bunch length. In general, moderate bud pruning can enhance the nutritional quality of table grapes. Keywords- Bud pruning, Bunch weight, Comparison, Nutritional quality. I. INTRODUCTION Grape (Vitis vinifera L.) is one of the oldest and most important fruit trees in the world, which has economic value and many beneficial effects on human health (Khadivi et al. 2019). Consumers' awareness of the close relationship between health and environmental concerns has increased the demand for providing high quality food (Mikulic‐Petkovsek et al. 2012). In the world, after apples and citrus fruits, the largest area of orchards is related to grapes. According to the statistics of the FAO (2020), the production of grapes in the world is more than other fruit trees. The continents of Europe, Asia, America, and Africa are the most important continents for growing and producing grapes, respectively. The latest statistics obtained are related to 2020, according to which China ranks first in grape production in the world with the production of 14,769,088 million tons of grapes. After that, Italy, Spain and France are in the next place respectively. Iran ranks 11 th in the world both in terms of cultivated area and production. Grapes, having rich sources of vitamins and organic and mineral compounds, are among the fruits that are beneficial for human health (Fia et al. 2022; Keskin et al. 2022; Mohamed et al. 2016). Grapes with high amounts of resveratrol compounds (derivatives of phenolic compounds) have anti-viral, anti-cancer, anti-inflammatory, anti-aging and longevity effects (Dennis et al. 2020). Afghanistan is one of the centers of grape origin in the world, which has a lot of genetic diversity (Arab and Ahamed 2022; Yousufi 2016). With 78,405 hectares of vineyards, this country is considered one of the largest producers of grapes and raisins in the world (Mushair et al. 2020). Considering the great variety of grape cultivars in the world, which is the result of both rooting and vegetative propagation, the common methods for identifying grape cultivars are measuring quantitative and qualitative traits between cultivars.