Relationship between morpho-agronomic traits in tomato hybrids

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Autores

Maria Inês Diel https://orcid.org/0000-0002-7905-2166
Débora Turchetto Zamban https://orcid.org/0000-0003-1054-6472
Tiago Olivoto https://orcid.org/0000-0002-0241-9636
Dionatan Ketzer krysczun https://orcid.org/0000-0002-7991-8994
Marcos Vinícius Marques Pinheiro https://orcid.org/0000-0002-5028-7818
Bruno Giacomini Sari https://orcid.org/0000-0003-3405-9628
Denise Schmidt https://orcid.org/0000-0002-9963-4956
Alessandro Dal'Col Lúcio https://orcid.org/0000-0003-0761-4200

Abstract

The objective of this study was to identify and estimate the relationships between production component variables and fruit yields in tomatoes. This experiment was conducted in a randomized block design with a 2×3×3 factorial arrangement, with two tomato hybrids (Netuno and San Vito), three doses of boron (H3BO3 - 0, 2, 4 g pit1)  and three calcium floral applications (no application; application every 7 days; and application every 14 days), totaling 18 treatments with four replications and 20 plants per plot. Pearson correlation coefficients were estimated between the measured variables and, after that, those with greater significance were selected for productivity with the Stepwise method and verification of multicollinearity using the number of condition and inflation factor of the variance. The correlations of the selected variables were decomposed into direct and indirect effects on fruit productivity with path analysis. There was a strong correlation between the variables, excluding the variables height, diameter and average mass of the fruits. Thus, there were cause and effect relationships between the independent variable total mass of the fruits and the principal variable total fruit yield. The variables diameter and total number of fruits did not contribute to an increased tomato production.

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