Resumen

PINA, S.  y  BAUTISTA, D.. Evaluation of vegetative growth on several table grape cultivars under semid arid tropic conditions in Venezuela. Rev. Fac. Agron. [online]. 2006, vol.23, n.4, pp.407-419. ISSN 0378-7818.

The vegetative growth of twelve table grape cultivars, Italia, Regina, Napoleón, Sultanina, Alphonse Lavallée, Red Globe, Datal, Perlón, Matilde, Michelli Palieri, Moscatel de Alejandría , Queen grafted on `Criolla Negra' rootstock was studied during the three first productive cycles after planting, in the Tocuyo, state Lara Venezuela (9º 48' N; 69º 47' W; to 630 msnm). The shoot vegetative growth and the node number were determined along the cycles. The trunk perimeter and the pruning fresh weights were also determined at the end of each cycle. The vineyard was established on vertical trellis, trained in bilateral cordon and furrow irrigated. The shoot growth of all cultivars showed an approximately sigmoidal curve in time. The greater shoot lengths were presented for cultivars Sultanina and Alphonse Lavallée; while `Moscatel of Alejandría' and `Queen' showed the less shoot length. In general, the cumulative shoot length showed an slowed increase between cycles, while the total node number at the end of each cycle varied among cultivars likely due to their endogenous conditions. The higher trunk perimeter were observed in cultivar Michelle Palierí followed by Sultanina and Napoleón; while the cv Queen showed the minor perimeter value. The higher pruning fresh weights were observed in the cvs. Sultanina and Napoleón. The cultivar with larger values of trunk thickening and pruning weihts, as Sultanina, Napoleón y Michelle Palierí might be considered like vigorous vegetative growth cultivars.

Palabras clave : Vitis vinifera; growth; cultivars.