1. Morphophysiology and quality of yellow passion fruit seedlings submitted to inhibition of gibberellin biosynthesis
- Author
-
Virgiane Amaral Silva, Franklin Damasceno Carvalho, André Felipe Fialho Ribeiro, Sylvana Naomi Matsumoto, Ednilson Carvalho Teixeira, Anselmo Eloy Silveira Viana, Luanna Fernandes Pereira, and Cristiano Tagliaferre
- Subjects
biology ,plant growth regulator ,Agriculture (General) ,Randomized block design ,Sowing ,biology.organism_classification ,Dickson quality index ,Passiflora edulis ,triazole ,Paclobutrazol ,S1-972 ,chemistry.chemical_compound ,Horticulture ,passiflora edulis ,dickson quality index ,chemistry ,Dry weight ,Seedling ,Gibberellin biosynthesis ,Passion fruit ,Agronomy and Crop Science ,After treatment - Abstract
The aim of this study was to verify if a growth reduction of yellow passion fruit seedlings’ growth morphophysiology and quality could be changed by paclobutrazol applied through seedling immersion. The experiment was conducted in a greenhouse, with seedlings grown in polyethylene tubes (290 cm3), with substrate. At 40 days after sowing, the seedlings were immersed in an aqueous solution of paclobutrazol at concentrations of 0, 50, 100, 150, and 200 mg L-1. The experiment was conducted in a randomized block design, with five treatments (paclobutrazol concentrations) and four replicates. At 15 and 30 days after treatment, growth characteristics were evaluated. At the end of the assay, destructive evaluations related to mass determination, total leaf area, and seedling quality index were performed. Paclobutrazol treatment induced restrictions in seedling growth, except for fresh and dry mass of root and total fresh mass. Based on these characteristics, the increase in values induced by paclobutrazol was verified. The seedling quality, defined by the major value of the Dickson quality index and a smaller robustness index, was higher when submitted to paclobutrazol treatment. The aim of this study was to verify if a growth reduction of yellow passion fruit seedlings’ growth morphophysiology and quality could be changed by paclobutrazol applied through seedling immersion. The experiment was conducted in a greenhouse, with seedlings grown in polyethylene tubes (290 cm3), with substrate. At 40 days after sowing, the seedlings were immersed in an aqueous solution of paclobutrazol at concentrations of 0, 50, 100, 150, and 200 mg L-1. The experiment was conducted in a randomized block design, with five treatments (paclobutrazol concentrations) and four replicates. At 15 and 30 days after treatment, growth characteristics were evaluated. At the end of the assay, destructive evaluations related to mass determination, total leaf area, and seedling quality index were performed. Paclobutrazol treatment induced restrictions in seedling growth, except for fresh and dry mass of root and total fresh mass. Based on these characteristics, the increase in values induced by paclobutrazol was verified. The seedling quality, defined by the major value of the Dickson quality index and a smaller robustness index, was higher when submitted to paclobutrazol treatment.
- Published
- 2021