Tolerance to soil aluminum by grapevine rootstocks

• Autor(a) principal: Fráguas, José Carlos
• Data de Publicação: 1999
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/5306
• topic: Vitis; mineral nutrition; toxicity; aluminum tolerance; Vitis; nutrição mineral; toxidez; tolerância ao alumínio

Eleven grapevine rootstocks were evaluated through Al saturation levels in samples of the Cambissol Humic soil, to settle a differentiated tolerance by Al. The work was conducted in greenhouse with six randomized treatments, whose characteristics used were: plant height, root length, dry weight of aerial and root portions, and concentration of P, K, Ca and Mg in the leaves and roots. Through of the increase and/or decrease observed in each characteristic (variation %), it was possible to evaluate a differentiated tolerance of cultivars. The responses of K were not affected by the Al saturation levels. The Ca and Mg were the most affected by Al. P showed a stable behavior in relation to the Al saturation levels. The American cultivars, Cunningham and Isabel, showed difference in the tolerance to the soil Al. The most sensible grapevine rootstocks were R99, Rupestris du Lot and Kober 5BB, as well as Isabel, while P1103, 101-14 and 196-17Cl were the most tolerant to the soil Al.