Abstract

ANDRADE-RODRIGUEZ, María et al. Bulb cutting methods to propagate Hippeastrum hybridum Hort.. Rev. Chapingo Ser.Hortic [online]. 2015, vol.21, n.1, pp.57-69. ISSN 2007-4034.  https://doi.org/10.5154/r.rchsh.2014.05.022.

Hippeastrum, commonly known in Mexico as Mancuernilla, is important in floriculture because of its beautiful flowers; it can be propagated by seeds, bulb separation and twin cataphylls. In Mexico, bulbs are imported from the United States and the Netherlands, meaning high investment costs for nursery growers; therefore, propagation methods are needed to provide inexpensive vegetative material for the commercial production of this ornamental. The objective of this study was to evaluate different bulb cutting methods for the propagation of Hippeastrum. Bulbs (8 cm) were used and nine cutting methods were studied: 1) the whole bulb, 2) basal section, 3) Λ cut in basal section, 4) basal section without central bud, 5) cutting basal section in half, 6) basal section into quarters, 7) longitudinal cut into quarters, 8) longitudinal cut into eighths and 9) basal section into quarters, separating each quarter into five groups of twin cataphylls. When the main bud was preserved, no bulbils were formed; when using the basal section: eliminating the central bud, cutting in half, and cutting into quarters, 5-6 bulbils were obtained; when the entire bulb was used and it was cut longitudinally into four and eight sections, 10 and 13 bulbils were obtained respectively. In contrast, when the basal section was cut into four parts, separating each quarter into five twin-cataphyll groups, 25 bulbils were obtained. It was concluded that Hippeastrum propagation was greater when the basal section of the mother bulb was cut into quarters and each quarter was separated into 5 twin-cataphyll groups.

Keywords : Bulbils vegetative propagation; twin cataphylls.

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