Humic substances and their effects on the micropropagation of banana

Victor Hugo Teixeira Buttrós,Adalvan Daniel Martins,Maysa Mathias Alves Pereira,Moacir Pasqual,Filipe Almendagna Rodrigues ,Joyce Dória Rodrigues Soares

doi:10.33448/rsd-v10i2.12297

Victor Hugo Teixeira Buttrós, Adalvan Daniel Martins + Show 4 more

Open Access

https://doi.org/10.33448/rsd-v10i2.12297

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Abstract

The growing concern to promote sustainable agriculture, seeking environmental preservation and, at the same time, increased productivity resulted in the search for technologies for the implementation of agricultural production systems, with ecological approaches and responsible use of natural resources, in the economic, political and social contexts in each region. One of the potential alternatives to achieve these results would be the use of humic substances, considering their direct and indirect mechanisms aimed at increasing agricultural production. Thus, the objective of this work was to evaluate the bioactivity of humic and fulvic acids, as well as to promote improvements in the phytotechnical attributes of banana cv. Prata-Anã micropropagated. The treatments consisted of five doses of humic acid and fulvic acid (2; 5; 10; 20 and 40 mg L-1) and a control without humic substances. Higher values for the length of the aerial part and the larger root were obtained with the use of 40 mg L-1 fulvic acid. The results prove the ability of fulvic acid to improve the in vitro development of banana explants.

Highlights

The growing concern to promote sustainable agriculture, seeking environmental preservation and at the same time increasing productivity, has resulted in the search for technologies for the implantation of agricultural production systems, with ecological approaches and responsible use of natural resources, in the economic, political and social contexts in each region
The most reported effects of humic substances (HS) on plants are related to a higher growth of the root system, as they stimulate the formation of lateral roots, adventitious roots, cellular elongation and formation of root hairs (Baldotto et al, 2011)
The treatments consisted of five doses of humic acid (HA) and fulvic acid (FA) (2; 5; 10; 20 and 40 mg L-1), resulting in 10 treatments and a control without humic substances, replicates per treatment and each repetition containing 10 tubes

Summary

Introduction

The growing concern to promote sustainable agriculture, seeking environmental preservation and at the same time increasing productivity, has resulted in the search for technologies for the implantation of agricultural production systems, with ecological approaches and responsible use of natural resources, in the economic, political and social contexts in each region. The most reported effects of HS on plants are related to a higher growth of the root system, as they stimulate the formation of lateral roots, adventitious roots, cellular elongation and formation of root hairs (Baldotto et al, 2011) These substances are able to increase the efficiency of the use of nutrients, decrease the incidence of diseases, helping to reduce the applications of fertilizers and pesticides and stimulating root growth (Canellas et al, 2002). They can cause increases in plant biomass (Baldotto & Baldotto, 2015), flower production (Baldotto & Baldotto, 2015), fruits (Lima et al, 2011) and seeds (Baldotto & Baldotto, 2014)

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