BEHAVIOUR OF SUPERIOR GRAPEVINES TO APPLICATION OF SOME REST BREAKING AGENTS AND WINTER PRUNING II- EFFECT OF TIMES OF WINTER PRUNING AND DIFFERENT VINE LOADS | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 9, Volume 31, Issue 2, July 2017, Page 115-122 PDF (383.98 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2017.191256 | ||||
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| Authors | ||||
| Faissal F. Ahmed1; Moawad M. Abd El-Hameed1; Mervat A. Aly2; Ahmed Y. El-Saman2 | ||||
| 1Hort. Dept. Fac. of Agric. Minia Univ. Egypt | ||||
| 2Viticulture Res. Hort. Res. Instit. ARC, Giza, Egypt | ||||
| Abstract | ||||
| This study was conducted during 2011/2012 and 2012/2013 seasons to adjust the best date of winter pruning (24th Dec., 31st Dec. or 7th Jan.) as well as vine load levels (66, 72, 78 or 84 eyes/vine) that responsible for gaining higher yield with fairly good berries quality of Superior grapevine cv. Delaying dates of winter pruning from 24th Dec. to 7th Jan. considerably enhanced the perentages of bud burst and fruiting buds, yield, shot berries%, T.S.S.%, and reducing sugars% and reduced leaf area, wood ripening coefficient, total chlorophylls and N, P, K, berry weight and total acidity%. All the investigated characteristics except bud burst%, berry weight and total acidity% were gradually increased with increasing vine loads from 66 to 84 eyes/vine. Pruning on 7th Jan. leaving 84 eyes/vine (6 fruiting cane x 12 eyes plus 6 renewal spurs x two eyes) gave the best results with regard to productivity of Superior grapevine cv. | ||||
| Keywords | ||||
| Dates of pruning; Vine load; bud burst; Fruiting buds; growth; yield; berries quality; Superior grapevines | ||||
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