The present investigation was carried out during three successive seasons (2015, 2016 and 2017)to determine water requirement on growth, yield and fruit quality features of Flame seedless grapevines. In Aga, Dahlia Governorate, Egypt, the chosen vines were seven years old, planted in a clay soil, spaced 2.5×2 meters apart and irrigated by flood system, spur pruned, trained to the quadrilateral cordon and trellised by the pergola system. The vines were pruned during the second week of January with bud load (56 buds/vine).The work in the first year was considered as a preliminary trial and then the experiment proceeded with the same manner during the second and third seasons, respectively. Four levels of irrigation water as follows: irrigation with5000m 3 /Fadden (control), 4500m 3 /Fadden, 4000m 3 /Fadden and 3500m 3 /Fadden. Obtained results revealed that irrigation of Flame seedless grapevines with 4000m 3 /Fadden recorded the highest water use efficiency which it reflected in getting vegetative growth better, increasing yield/vine and improving berry quality attributes of Flame seedless grapevines in both seasons. From the obtained results, it can be recommended that Flame seedless grapevines irrigated with 4000m 3 /Fadden had the best results which it gained a good yield with high fruit quality attributes.

The present investigation was carried out at Baramoon Research Station, Mansoura, Dakahlia Governorate, Egypt (+ 7m altitude, 30 o 11 latitude and 28 o 26 the most effective treatment for satisfactory improvements in productivity and quality yields with keeping the health and safety of human and environment.

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This study was carried out during two successive seasons (2015 & 2016) in a private vineyard farm at Boktares village, Aga, Dakahlia Governorate, Egypt. The experiment was conducted on 12 years old Thompson seedless grapevines cultivar in a clay soil under surface irrigation system. The vines were trained on three vertical wires system and cane-pruned. Seeds of four medicinal plants; fenugreek, anise, black cumin and parsley were planted in rows between the vines rows in the fourth week of September 2014 and 2015 seasons. At the same time different plots were cultivated by different medicinal plants as sole crops to compare growth characters and medicinal plants yield under intercropping conditions with individual cultivation of medicinal plants without intercropping. The aim of this study was to evaluate the efficacy of intercropping of Thompson seedless grapevines with some medicinal on vines nutritional status, yield, berry quality and the microbiological activity of the soil. Obtained results revealed that intercropping of Thompson seedless grapevines with all used medicinal plants increased N, P , K and organic matter (O M) in the soil, which enhanced vines nutritional status, vegetative growth, yield and berry quality. Vines intercropped with fenugreek plant significantly increased shoot length, leaf area and total chlorophyll content in the leaves as well as yield per vine, soluble solids content and total sugar, while reduced the total acidity in berries. In addition, increased total microbial count, dehydrogenase and phosphatase enzymes activity in the rhizosphere. The economical study indicated that intercropping Thompson seedless with fenugreek gave the highest net profit/ feddan followed by intercropping Thompson seedless with black cumin, parsley and anise, respectively.

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