Risk., I., All, M., El Gendy, R. (2006). CANOPY DENSITY AND LEAF AREA OF THOMPSON SEEDLESS GRAPEVINES AS BIOLOGIC INDICES FOR YIELD AND CLUSTER QUALITY. Journal of Plant Production, 31(10), 6595-6606. doi: 10.21608/jpp.2006.236343
Isis A. Risk.; Mervat A.K. All; R. S.S. El Gendy. "CANOPY DENSITY AND LEAF AREA OF THOMPSON SEEDLESS GRAPEVINES AS BIOLOGIC INDICES FOR YIELD AND CLUSTER QUALITY". Journal of Plant Production, 31, 10, 2006, 6595-6606. doi: 10.21608/jpp.2006.236343
Risk., I., All, M., El Gendy, R. (2006). 'CANOPY DENSITY AND LEAF AREA OF THOMPSON SEEDLESS GRAPEVINES AS BIOLOGIC INDICES FOR YIELD AND CLUSTER QUALITY', Journal of Plant Production, 31(10), pp. 6595-6606. doi: 10.21608/jpp.2006.236343
Risk., I., All, M., El Gendy, R. CANOPY DENSITY AND LEAF AREA OF THOMPSON SEEDLESS GRAPEVINES AS BIOLOGIC INDICES FOR YIELD AND CLUSTER QUALITY. Journal of Plant Production, 2006; 31(10): 6595-6606. doi: 10.21608/jpp.2006.236343
CANOPY DENSITY AND LEAF AREA OF THOMPSON SEEDLESS GRAPEVINES AS BIOLOGIC INDICES FOR YIELD AND CLUSTER QUALITY
This work was carried out for two smsons : 2004 and 2005 on twelve years old
Thompson Seedless grapevines. Vines were differently trellised. three systems of
trelllslng were applied at three locations in the vineyard; the first was the simple
traditional telephone cane training system (in which vines had a high canopy density).
the second was T trellis system (moderate density) and the third was double T trellis
system (Low density). For measuring the canopy density a point quior thin long metal
was used. This was inserted 50 times in the campy. then its going through gaps.
leavm or clusters after which the data was recorded. Scores sheet was used for
masurlng the canopy density through different steps then data were calculated. The
results showed that number of clusterslvlne. cluster dimensions. cluster weight and
T38 in berry juice were Increased at the low canopy density (double T system).
Chlorophyll content was found to increase in this trmtrnent whereas leaf area was
decreased. In the traditional cone system (high density}. cluster weight. cluster
dimensions and total soluble solids in berry juice were decreased whereas acidity of
the juice was increased. this was attributed to the high density canopy which did not
allow light and aeration to penetrate within the canopy as to reach the interior parts of
the foliage. This high density canopy needs special management with the aim of
modifying microclimate of the vines.
View on SCiNiTO
Top