Substrates and Container Size on Quality of Peltophorum dubium Seedlings

Abstract

This study aims to evaluate the effect of substrates and container content on growth and quality of Peltophorum dubium seedlings. The design was completely randomized in a factorial arrangement (2 × 9), with two containers sizes (125 cm 3 and 280 cm 3 ) and nine substrates formulated from the mixture of subsoil (S), vermicompost (V) and commercial substrate (CS), in the following proportions (v:v): S 100 , V 100 , CS 100 , S 75 + V 25 , S 50 + V 50 , S 25 + V 75 , CS 75 + V 25 , CS 50 + V 50 and CS 25 + V 75 , with nine replicates. We assessed seedling height, stem diameter, root and shoot dry matter, height/shoot dry matter ratio; Dickson quality index; and percentages of nitrogen, phosphorous and potassium in the shoot. The use of the 125 cm 3 dibble tube containing 100% vermicompost allowed for higher quality of Peltophorum dubium seedlings.

Initial growth and quality of jussara palm seedlings cultivated in biosolid-based substrates

“…DQI is considered a good indicator of seedling quality as it is a weighted morphological measurement that considers robustness and balance of seedling dry mass distribution (Abreu et al, 2019), so DQI values may vary according to the species, seedling age, and treatment applied (Araújo et al, 2020). Furthermore, seedling quality is affected by nutrient Initial growth and quality of jussara… availability in the substrate (Silva, Marco, Welter, Viel, & Ros, 2020b). There are different DQI values for palm seedlings (Silva et al, 2015;Silva et al, 2017;Almeida et al, 2018;Oliveira, Carneiro, Pereira, Andrade, & Silva-Matos, 2019;Araújo et al, 2020;Bezerra, Andrade Neto, Lunz, Araújo, & Araújo, 2020;Ferreira et al, 2021;Souza et al, 2022), so there is no a determined mean value for such characteristic yet, what indicates the need for further studies so palm seedlings of high quality may be considered (Araújo et al, 2020;Souza et al, 2022).…”

Utilização De Plantas De Cobertura E Culturas Alimentares No Estabelecimento De Mudas De Canafístula (Peltophorum Dubium (Spreng.) Taub.)

“…Esta é uma planta nativa rústica de rápido crescimento tem sido amplamente utilizada em projetos de recomposição de áreas degradadas, reflorestamento (LORENZI et al, 2020), bem como em sistemas agroflorestais -SAFs (MELOTTO et al, 2019). Em formações de povoamentos florestais, mudas com qualidade constitui um dos principais fatores para sobrevivência das mudas a campo (SILVA et al, 2020).…”