REGENERACIÓN DE BULBOS DE Hippeastrum striatum Y Habranthus brachyandrus SOMETIDOS A CORTE LONGITUDINAL

RODRIGUEZ MATA ORLANDO; DAVIÑA JULIO R.; ANA I. HONFI

BOLETíN DE LA SOCIEDAD ARGENTINA DE BOTáNICA

SOCIEDAD ARGENTINA DE BOTÁNICA

Lugar: Córdoba; Año: 2018 vol. 53 p. 609 - 618

0373-580X

Summary: As an alternative for increasing the vegetative propagation of two ornamental promising species, Hippeastrum striatum and Habranthus brachyandrus, the capacity of vegetative regeneration of bulbs subjected to cut, was analyzed. For both species the number of bulblets was greater when the mother bulb was cut. In H. striatum 13 - 20 regenerated bulblets were obtained with diameters between 1.02 and 1.16 cm (x = 1.09 cm). In H. brachyandrus 16 - 23 new bulblets were obtained with diameters between 0.87 and 0.94 cm (x = 0.91 cm). The number of leaves in new bulblets varied between 5 to 0 leaves/bulb in H. striatum and between 3 to 0 in H. brachyandrus. For bulbs that were not subjected to cutting (control treatment), there was no production of bulblets in H. brachyandrus, instead, in H. striatum smaller size bulblets were obtained without signs of leaves development. The mechanical induction of bulblet development from mother bulbs, had a highly significant effect in the variables evaluated, stimulating the activation of basal scale buds giving rise to an asexual progeny of clonal origin.