1. Morphology of yellow passion fruit seedlings submitted to triazole induced growth inhibition
- Author
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Anselmo Eloy Silveira Viana, Delmira da Costa Silva, Alessandro de Magalhães Arantes, Ednilson Carvalho Teixeira, Luanna Fernandes Pereira, and Sylvana Naomi Matsumoto
- Subjects
General Veterinary ,Specific leaf area ,biology ,Vegetative reproduction ,Agriculture (General) ,inhibitor of gibberellin biosynthesis ,Randomized block design ,Soil Science ,food and beverages ,biology.organism_classification ,Passiflora edulis ,Paclobutrazol ,S1-972 ,Passiflora ,chemistry.chemical_compound ,Horticulture ,chemistry ,Seedling ,propagation ,Lignin ,Animal Science and Zoology ,Transplanting ,Agronomy and Crop Science ,Food Science - Abstract
Inhibiting seedling vegetative growth may be a strategy for improving modulation against biotic and abiotic stresses after transplanting. The objective of this study was to evaluate morphological responses of yellow passion fruit (Passiflora edulis) seedlings to growth inhibition resulted from the application of an inhibitor of gibberellin biosynthesis. The experiment was carried out in a greenhouse using seedlings grown in 290 cm3 polyethylene tubes. At 40 days after emergence, trays containing the seedlings were immersed in solutions at concentrations of 0, 40, 80, 120 and 160 mg (Paclobutrazol) PBZ L-1 up to substrate saturation. These five treatments were laid out in a randomized block design with four replicates. At 15, 30 and 45 days after PBZ application (DAA), basal stem diameter was measured; at 45 DAA, stem diameter, individual leaf area, specific leaf area, root diameter and root volume were measured, lignin content and the anatomy of leaves, stems, and roots were analyzed. Triazole-induced anatomical alterations in stems, leaves and roots cause morphological traits and intensify the specific reagent staining of phenolic compounds and lignin in yellow passion fruit (Passiflora edulis) seedlings.
- Published
- 2019