RESPONSE OF “SUPERIOR” GRAPEVINES TO SPRAYING OF TWO AMINO ACID SOURCES

Document Type : Research articles.

Authors

Viticulture Res. Dept. Hort. Res. Instit. ARC, Giza, Egypt.

Abstract

This study was undertaken during 2015 and 2016 seasons to throw
some lights on the effect of two amino acid sources namely “Vegetamine”
(24.8% free amino acids + 5.5 % N) and Amino green (15% amino acids +
2.9% Fe, 1.4% Zn and 0.7% Mn) each at 0.05 to 0.4% on some growth
aspects, vine nutritional status, berry setting %, yield and berries quality of
“Superior” grapevines.
Treating the vines three times with “Vegetamine” each at 0.05 to
0.4% caused an appreciable promotion on some growth aspects, leaf
pigments and nutrients, berry setting %, yield and berries quality over the
check treatment. A gradual promotion on the investigated parameters was
observed with increasing concentrations of each source of amino acids. All
the studied characteristics were unaffected with increasing concentrations
from 0.2 to 0.4%. Using Amino green source was materially superior than
using the other source of amino acids namely “Vegetamine” in improving
growth, vine nutritional status, yield and berries quality.
Accordingly, treating “Superior” grapevines three times with amino
acids in the source of Amino green at 0.2% gave the best results with
regard to yield and berries quality.

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