Abstract
The sustainable production of inputs or products, either agricultural or industrial, has become an international concern in the last years. Thus, one of the biggest challenges today is to combine production with sustainability. An alternative that has been gaining strength is the use of industrial waste in agriculture. Therefore, the objective of this study was to evaluate the development, physiology and quality of seedlings of C. canephora from the thirteen genotypes found in the variety Vitoria Incaper 8142, in conventional substrate in comparison to a substrate based on tannery sludge. A 2 x 13 factorial arrangement was used in which the first factor was the two substrates (conventional substrate and substrate with tannery sludge), and the second factor was the 13 Vitoria - Incaper 8142 Conilon coffee genotypes, arranged in a randomized block design with four repetitions. No significant interaction was observed between the factors evaluated, genotypes and substrates. Despite the fact that plants grown on substrate based on tannery sludge show lower averages in some characteristics, they were not different in terms of seedling quality index, so the substrate based on tannery sludge has strong potential for use. This substrate also promoted a greater production of defense metabolites in plants. As for the response pattern between the genotypes of the Vitoria - Incaper 8142 variety, a high unevenness was observed in the initial development, both for their phenological and physiological characteristics, which is a reflect of the genetic variability existing between the genotypes. Key words: Seedling production; Coffe canephora; physiology; sustenaibility.
Highlights
Coffee is a drink immensely appreciated by a large part of the world’s population, so to meet this demand, estimates indicate that the harvest in 2019-2020 will be 167.4 million bags benefited from 60 kg, with 42.8% of this total corresponding to the species Coffea canephora (International Coffee Organization – ICO, 2019)
Because of the high potential for agricultural use of tannery sludge, and the need for these industries to become more sustainable, the objective of this study was to evaluate the development, physiology and quality of C. canephora seedlings from the 13 genotypes, in conventional substrate in comparison to a substrate based on tannery sludge
The substrate containing tannery sludge provided less gain for most of the growth characteristics when compared to the conventional substrate; it did not differ in terms of seedling quality
Summary
Coffee is a drink immensely appreciated by a large part of the world’s population, so to meet this demand, estimates indicate that the harvest in 2019-2020 will be 167.4 million bags benefited from 60 kg, with 42.8% of this total corresponding to the species Coffea canephora (International Coffee Organization – ICO, 2019). Espírito Santo is a Brazilian state notably focused on coffee farming, mainly for the species C. canephora, contributing to approximately 76% of all the Brazilian production. It is the largest producer in the country (Instituto Capixaba de Pesquisa Assistência Técnica e Extensão Rural – INCAPER, 2019). Despite the high productivity, the cost of producing this crop is still high, so there is a need to prioritize techniques that aim to reduce such costs
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