Abstract
The aim of this work was to verify by means of adaptability and stability analyses which genotype of Plinia sp. (jabuticaba tree) is more adapted to orchard conditions, based on the measures of stem growth and primary shoots. During a three-year period, the initial growth of jabuticaba tree genotypes from the native fruit collection of the Experimental Station of the Universidade Tecnológica Federal do Paraná - Câmpus Dois Vizinhos was evaluated. These genotypes included seedlings from forest fragments of the southwestern region of Paraná State and some from Minas Gerais State, Brazil. Analysis of variance (ANOVA) was performed, in a 29 x 3 factorial design, with three replicates in each treatment. Phenotypic adaptability and genotypic stability were evaluated based on the data obtained by the following methods: Eberhart and Russell, Lin and Binns and the AMMI. The analyses were carried out through the computer programs GENES and Stability. The methods that were tested to determine the adaptability and stability of the growth behaviour of the jabuticaba tree did not present consistent patterns in the results. However, the genotype generally referred to as 'Vitorino' was the most suitable for open-air cultivation.
Highlights
The Plinia sp. originates in south central Brazil, occurring in practically every national territory with tropical and humid subtropical climates and areas with forests (Kinupp, Lisbôa, & Barros, 2011)
For the implementation of commercial orchards, Plinia sp. can be hard to cultivate when propagated by seed
The objective of this work was to verify the adaptive behaviour of Plinia sp. genotypes in orchard condition in terms of adaptability and stability analyses based on the measures of stem growth and primary shoots
Summary
The Plinia sp. (jabuticaba tree) originates in south central Brazil, occurring in practically every national territory with tropical and humid subtropical climates and areas with forests (Kinupp, Lisbôa, & Barros, 2011). In the southwestern region of Paraná State, the natural occurrence of Plinia sp (jabuticaba tree) is limited to some remaining forest sites, where human intervention has already occurred. This human intervention involves mainly the extractive exploitation of fruits, or in many places, native vegetation has been changed by pasture or husbandry (Citadin, Vicari, Silva, & Danner, 2005; Danner, Citadin, Sasso, & Tamazoni, 2010). (jabuticaba tree) can be hard to cultivate when propagated by seed. This tree has a longer juvenile period that does not attract producers to cultivate it (Andrade & Martins, 2003). It is necessary to understand this species better agronomically, through research on the methods of vegetative propagation, as well as the molecular characterization and phenotypic characteristics of the germplasm
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