Soliman, S., Mohamed, A., Salem, A., Alsalhy, A., Wadee, M. (2022). Role of some nutrients and yeast spraying, as well as girdling and leaf defoliation on fruiting of Early Sweet grapevines. Aswan University Journal of Environmental Studies, 3(1), 58-66. doi: 10.21608/aujes.2022.109688.1051
Said Saad Soliman; Ahmed Mohamed; AlNopy Salem; Abdelftah Alsalhy; Milad Wadee. "Role of some nutrients and yeast spraying, as well as girdling and leaf defoliation on fruiting of Early Sweet grapevines". Aswan University Journal of Environmental Studies, 3, 1, 2022, 58-66. doi: 10.21608/aujes.2022.109688.1051
Soliman, S., Mohamed, A., Salem, A., Alsalhy, A., Wadee, M. (2022). 'Role of some nutrients and yeast spraying, as well as girdling and leaf defoliation on fruiting of Early Sweet grapevines', Aswan University Journal of Environmental Studies, 3(1), pp. 58-66. doi: 10.21608/aujes.2022.109688.1051
Soliman, S., Mohamed, A., Salem, A., Alsalhy, A., Wadee, M. Role of some nutrients and yeast spraying, as well as girdling and leaf defoliation on fruiting of Early Sweet grapevines. Aswan University Journal of Environmental Studies, 2022; 3(1): 58-66. doi: 10.21608/aujes.2022.109688.1051
Role of some nutrients and yeast spraying, as well as girdling and leaf defoliation on fruiting of Early Sweet grapevines
1Natural Resources Dept., Institute of African & Nile States Researches and Studies, Aswan University, Aswan 81528, Egypt;
2Soil and Water Dept., Fac. Agric. & Natural Resources, Aswan Univ.
3Pomology Dept., Fac. Agric. & Natural Resources, Aswan Univ.
4Pomology Department, Fac. Agric. Assiut Univ.
5Natural Resources Dept., Institute of African & Nile States Researches and Studies, Aswan University, Aswan 81528, Egypt;
Abstract
The present study was carried out during 2019 and 2020 seasons to study the effect of yeast and landamineZn spraying as well as girdling and leaf defoliation on yield and berry quality of Early Sweet grapes. The experimental set up in a randomized complete block design, where, the study included seven treatments with three replications one vine each. Yield/vine and cluster weight were significantly increased due to spray yeast or landamineZn as well as girdling or leaf defoliation compared to untreated one (control). Spraying 4 g/L landamineZn was very effective in increasing yield and cluster weight than other treatments. Moreover, all studied treatments significantly improved the berry quality in terms of increasing berry weight, reducing sugar total soluble solids and decreasing berry firmness and total acidity compared to untreated ones. No significant differences which obtained due to spray landamineZn at 2 or 4 cm3/L, as well as yeast, girdling or leaf defoliation. It could be concluded that spraying 2 to 4 cm3/L landamineZn to get high yield with good cluster and berry quality. In addition, to avoid damages arising from girdling and leaf defoliation of Early Sweet grapes.
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