Morphophysiology and quality of yellow passion fruit seedlings submitted to inhibition of gibberellin biosynthesis
Open Access
- 5 July 2021
- journal article
- research article
- Published by Universidade Estadual de Maringa in Acta Scientiarum. Agronomy
- Vol. 43, e51541
- https://doi.org/10.4025/actasciagron.v43i1.51541
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.Keywords
This publication has 20 references indexed in Scilit:
- Biometric, physiological and anatomical responses of Passiflora spp. to controlled water deficitScientia Horticulturae, 2018
- Identification of Passiflora spp. genotypes resistant to Cowpea aphid-borne mosaic virus and leaf anatomical response under controlled conditionsScientia Horticulturae, 2017
- Effect of paclobutrazol, a potential growth regulator on stalk mechanical strength, lignin accumulation and its relation with lodging resistance of maizePlant Growth Regulation, 2017
- Effects of water-deficit stress and paclobutrazol on growth, relative water content, electrolyte leakage, proline content and some antioxidant changes in Curcuma alismatifolia Gagnep. cv. Chiang Mai PinkSaudi Journal of Biological Sciences, 2017
- Paclobutrazol: a novel plant growth regulator and multi-stress ameliorantIndian Journal of Plant Physiology, 2017
- Growth dynamics and allometric relationships of Passiflora species rootstocksComunicata Scientiae, 2017
- Effects of paclobutrazol on leaf anatomy and gas exchange ofToona ciliataclonesAustralian Forestry, 2016
- Efeito do paclobutrazol no desenvolvimento de plantas de girassol ornamentalRevista de Ciências Agrárias, 2016
- Aplicação exógena do ácido salicílico em maracujazeiro-amarelo para o controle do vírus do endurecimento dos frutosArquivos do Instituto Biológico, 2016
- Plant Growth Regulators: Backgrounds and Uses in Plant ProductionJournal of Plant Growth Regulation, 2015