Effect of Protective Covering on Physicochemical Properties of Grape (Vitis vinifera L.)


Rahimullah Himatkhwah
Sher Mohammad Wafa
Qudratullah Ehsan
Mohammad Sadiq Salihi


The study was conducted at Fruit Research Farm Department of Fruit Science, Punjab Agricultural University, Ludhiana during the 2018 and 2019 fruiting seasons. The experiment was conducted on 7-year-old own-rooted vines of Perlette, Flame Seedless, Superior Seedless, and Punjab Purple grapes varieties, with spacing of 4x4 m2 between rows and plants. The experiment consisted of 2 treatment combinations (T1 = protective covering, T2=open field condition) laid out in randomized block design (RBD) with three replications. The data was analyzed for cluster weight, cluster size, total soluble solids, total sugar, acidity, TSS: acid ration, and total anthocyanins. Maximum mean cluster weight (324.7g in 2018 and 333.5g in 2019), cluster length (17cm in 2018 and 16.7cm in 2019), cluster breadth (9.5cm in 2018 and 9.3cm in 2019), TSS (18.33% in 2018 and 18.17% in 2019), total sugar (14.1% in 2018 and 13.5% in 2019), TSS/acid ratio (28.3 in 2018 and 28.4 in 2019) and total anthocyanin contents (47.95mg/100 gm pulp in 2018 and 48.77mg/100 gm pulp in 2019) were recorded in grape varieties grown under permanent protective covering, while the higher acidity (0.68% in 2018 and 0.66% in 2019) was found in grape varieties grown in open condition in both the seasons. All of these parameters, except for acidity, were minimal in grape varieties grown under open field conditions.


Chemical characteristics, Grapes, Open filed condition, Protective covering, Physical characteristics


How to Cite
Himatkhwah, R., Wafa, S. M., Ehsan, Q., & Salihi, M. S. (2024). Effect of Protective Covering on Physicochemical Properties of Grape (Vitis vinifera L.). NUIJB, 3(01), 09–16. Retrieved from https://nuijb.nu.edu.af/index.php/nuijb/article/view/152


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