RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3
Ismaeil,, F., Wahdan, M., EI-Sheikh, A. (2003). RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3. EKB Journal Management System, 28(8), 6321-6334. doi: 10.21608/jpp.2003.244804
Faten H.M. Ismaeil,; M. T. Wahdan; A. F. EI-Sheikh. "RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3". EKB Journal Management System, 28, 8, 2003, 6321-6334. doi: 10.21608/jpp.2003.244804
Ismaeil,, F., Wahdan, M., EI-Sheikh, A. (2003). 'RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3', EKB Journal Management System, 28(8), pp. 6321-6334. doi: 10.21608/jpp.2003.244804
Ismaeil,, F., Wahdan, M., EI-Sheikh, A. RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3. EKB Journal Management System, 2003; 28(8): 6321-6334. doi: 10.21608/jpp.2003.244804

RESPONSE OF THOMPSON SEEDLESS AND ROUMI RED GRAPE CULTIVARS TO FOLIAR SPRAYS WITH YEAST EXTRACT AND GA3

Journal of Plant Production
Article 14, Volume 28, Issue 8, August 2003, Page 6321-6334  XML PDF (13.45 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2003.244804
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Authors
Faten H.M. Ismaeil,1; M. T. Wahdan2; A. F. EI-Sheikh2
1Agric.Botany Dep. Agrlc. Fac. Moshtohor, Zagazlg Univ .
2Hort. Dep. Agric. Fac.Suez chanal Univ
Abstract
Yeast extract (100 and 200 mill) and GA" (20 and 40 ppm) were fol'ar
sprayed on Thompson Seedless and Roumi Red grape cultiva-s The treatments were
done before lIowering (2nOweek of April) and at full bloom (1" week of May). Fruit set
(%) and number or c1usterslvine of both cultivars were increased significantly. In
addiUon. yield was increased as a result of cluster weight, length and berries weig t.
Number of berries/cluster also improved significantly by yeast extract + GA" and yeast
extrac; treatment alone for "Thompson Seedless" and "Roumi Red'. respectively. I
All treatments increased jdce ~ '''~ntage of "Thompson Seedless' bernes,
however, juice content of 'Roum; Red'. :;(.;:~cle solids contenl (SSe), Sse/acid ratio
and total sugars were increased while acidily decreased significantly for both cultivafs.
The combination of yeast extract "'; 1 00 mill and GA" at 40 ppm IS recommended or
improving yield and fruit quality of Thompson Seedless and Roumi Red grape
cullivars.
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