Resumo

GARCIA-OSUNA, Hermila Trinidad et al. Germination and micropropagation of tetraploid husk tomato (Physalis ixocarpa). Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.spe12, pp.2301-2311. ISSN 2007-0934.

The tetraploid variety of tomatillo (Phisalis ixocarpa) has adaptive characteristics both at morphological and physiological level. One of the limitations of the seed is low viability, germination and seedling emergence, as well as limited vegetative propagation capacity, which is why the objective of this study was to evaluate the response in germination of tetraploid seeds of tomatillo applying regulators and organic acids. Imbibition with regulators and organic acid treatments were applied to seeds, which were: gibberellic acid (AG), organic acids: benzoic acid (AB), salicylic acid (AS), sulfosalicylic (ASS), at concentrations of 10-2 M, 10-4 M and 10-6 M. Emergence began on the fourth day after planting with germination percentage for AG1, AG2 and AG3 of 73.33, 56.66, 63.33% and an IVG of 20.26, 10.44 and 11.59 respectively. For micropropagation the combination of regulators benzyladenine (BAP), kinetin and naphthaleneacetic acid (ANA) were evaluated at different concentrations. The best treatment was 3 mg L-1 BAP with 9.5 buds per explant.

Palavras-chave : benzoic acid; gibberellic acid; salicylic acid; sulfosalicylic acid.

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