In vitro morphogenesis of different mangabeira (Hancornia speciosa gomes) varieties from the savanna of the Goiás

Abstract

Hancornia speciosa is a fruit tree that is in the process of domestication. This time the propagation in vitro when well developed can promote conditions for the production of quality seedlings for this fruit. In vitro culture technologies are of great importance for conservation programs of genetic resources and genetic improvement of mangabeira. The objective of this study is to establish a methodology the micropropagation of Hancornia speciosa, Gomes, of three varieties (cuyabensis, gardneri and pubescens) by in vitro germination of seeds under different growth regulators. Fruits were collected at School of Agronomy of the Federal University of Goiás, transported to the Laboratory of Biotechnology, Federal Institute Campus Urutaí - Goiás, inoculated for germination in test tubes containing MS growth medium with 50% of salts concentrations, with five different concentrations of IBA. It was observed that the in vitro germination of cuyabensis, gardneri, and pubescens were 66.00 %, 64.05 % and 76 %, respectively. The beginning of germination occurred from three days for gardneri variety, six days for pubescens variety, and eigh day for cuyabensis variety, extending to the 16 days for gardneri variety, and 28 days for the other varieties. Explants of different varieties differ in their manifestations when cultured in vitro. The aseptic method was effective for the control of fungal agents

Advances and perspectives in the propagation of mangabeira (Hancornia speciosa Gomes) - review on a tropical fruit tree with socioeconomic importance

“…• The application of gibberellins offers a practical method for nursery production of H. speciosa seedlings for field planting. (Caldas et al, 2009;(Martinotto et al, 2012;Vieira et al 2013;Rodrigues et al, 2017;Santos et al, 2018) Table 2. Scientific productions related to the production of mangabeira seedlings.…”

“…• Micropropagation of H. speciosa did not influence the occurrence of somaclonal variation. (Pereira-Netto, 1996;Pereira-Netto, 2001;Machado et al, 2004;Soares et al, 2011;Sá et al, 2012;Oliveira et al 2016;Vieira et al, 2018;Cabral et al, 2018;Costa et al, 2022) Growth in vitro…”

“…The main method for obtaining seedlings of the species is still through seeds, which discourages its cultivation due to slow field growth and uneven fruit production among progenies, thus making it difficult to expand commercial orchards (Ganga et al, 2010;Vieira et al, 2013). Strategies for seedling production through asexual techniques such as micropropagation, grafting, or rooting of cuttings are more promising for the establishment of commercial orchards.…”