Evaluation of some physical and chemical characteristics of two grape cultivars under irrigated and non-irrigated conditions
Keywords:Grapes, irrigated cultivation, rain-fed vineyard, Cultivars, Quality parameters
This study carried out in Kanipanka Agricultural Research Station Sulaimani governorate, Kurdistan region, Iraq. The experiment contained of three vines of each cultivar (Tre-rash and Rash-miree) were selected, and it was cultivated in two methods (irrigated and non-irrigated) previously. The total of vines were 12 which have about (15) years. Using Randomized Complete Block Design (RCBD) with 3 replicates. Duncan's multiple ranges (p ≤ 0.05) used to compare the means XLSTAT software used for data analysis. The aim of this study was to determine the influence of the two methods for the cultivation on two grape cultivars aforementioned and their effects on the physical and chemical properties. Results indicated that Tre-rash cultivar superior Rash-miree cultivar in term of the number of berries per cluster, total sugar, pH value, number of seeds per berry, cluster weight and firmness. On the other hand, Rash-miree cultivar significantly superior Tre-rash cultivar regarding the berry diameter and length, Titratable acidity, weight and size of 100 berries, anthocyanin, weight of pulp per 100 berries. Concerning the cultivation methods of grapevine where registered the highest vitamin C, TSS, total sugar, pH, cluster weight, weight and size of 100 berries, anthocyanin and weight of pulp per 100 berries when cultivation non-irrigated. Additionally, the interaction between Rash-miree cultivar with non-irrigated cultivation showed significant superiority more the studied traits.
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