Resumo

BERDEJA-ARBEU, R. et al. Interaction of persian lime-rootstocks: Effect on leaf stomata characteristics and tree vigour. Rev. Chapingo Ser.Hortic [online]. 2010, vol.16, n.2, pp.91-97. ISSN 2007-4034.

Eleven combinations of rootstock varieties and grafts were carried out with the purpose of evaluating the effect on number and size of stomata, as well as on the stomatal index. These variables were correlated with the height of "Persian" lime plants. The rootstocks, 'C32', 'C35', 'Benton', 'Carrizo', 'Florida' and 'Morton' citranges, 'Amblicarpa' and 'Cleopatra' tangerine, 'Volkamerian', 'Flying Dragon' lemon and 'Sour' orange, which was used a control, were evaluated. 'Persian' lime leaves are amphistomatic; on the upper face of the leaf, stomas are found only on the midrib. It was found that the rootstocks modified the number of stomata (from 287 to 331 per mm^-2); these parameters were higher with 'Sour' orange; the stomatal index was superior in 'Cleopatra' tangerine (9.86) and the stomata were larger in 'Carrizo' citrange (25.89 μm). A lower area of four 'Persian' lime leaves of was found on the plants grafted onto 'Flying Dragon' (124 cm^-2). On 10 rootstocks the height of 'Persian' lime plants was above 4.01 m, and crown diameter was more than 3.03 m, but on 'Flying Dragon' height and crown diameter were only 2.43 and 2.21 m, respectively. The number of stomas correlated positively with the number of epidermal cells (r= 0.709) and negatively with rootstock stem diameter (r= -0.449).

Palavras-chave : Citrus latifolia; stomas; stomatic index; stomas size; graft-rootstocks relation.

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