Abstract

LIMA, Alysson Gomes de et al. Early development of cactus forage seedlings derived from cladode fragmentation technique. Rev. de Ciências Agrárias [online]. 2021, vol.44, n.1, pp.51-60.  Epub Mar 01, 2021. ISSN 0871-018X.  https://doi.org/10.19084/rca.20634.

Considering the need to re-establish fields of forage cactus resistant to carmine cochineal, this study aimed to evaluate the propagation method by fractioning of the cladodes of two species of cactus forages (Opuntia stricta Haw) cultivar “Orelha de elefante” and (Nopalea cochenillifera Salm Dick) cultivar “Baiana”. The experiment was carried out at the National Institute for the Semiarid of Brazil. The treatments consisted of the fractions of the cladode upper (Ts), middle (Tm), and lower (Ti). The treatment divisions corresponded to 180 seedlings, being 90 “Orelha de elefante” and 90 “Baiana”. Seedlings from the lower fraction of the cladode have a higher accumulation of dry matter. A larger number of shoots were observed in the seedlings from the median fraction of the cladode, regardless of the cactus forage cultivar (P> 0.05). Both species and treatments studied rooting were greater than 90%, which denoted the feasibility of the fractionation technique as a quick and practical method to obtain a large number of seedlings per cladode for planting in the cactus forage.

Keywords : Nopolea cochenillifera; Opuntia stricta; Cladodium division; Forage crop.

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