Evaluation of papaya genotypes using agronomic descriptors and estimation of genetic parameters

Authors

  • Marcelo de Souza Silva Faculdade de Ciências Agronômicas da Universidade Estadual Paulista
  • Sarita Leonel Faculdade de Ciências Agronômicas da Universidade Estadual Paulista
  • Jackson Mirellys Azevêdo Souza Faculdade de Ciências Agronômicas da Universidade Estadual Paulista
  • Joyce Helena Modesto Faculdade de Ciências Agronômicas da Universidade Estadual Paulista
  • Rafael Bibiano Ferreira Faculdade de Ciências Agronômicas da Universidade Estadual Paulista
  • Ana Carolina Batista Bolfarine Faculdade de Ciências Agronômicas da Universidade Estadual Paulista

DOI:

https://doi.org/10.14393/BJ-v34n1a2018-37164

Keywords:

Genetic diversity., Carica papaya L., Genetic improvement, Variety’s performance

Abstract

In Brazil, the improvement of papaya agribusiness is correlated to the estimation of genetic parameters and evaluation of agronomic descriptors; thus enabling less favourable areas for the development and implementation of papaya crops. Therefore, the current study aimed to evaluate quantitative descriptors and to estimate genetic parameters in genotypes of papaya grown under subtropical climate in the state of São Paulo. The experimental design was randomized in block. The experimental units were grouped into seven blocks of five plants each and three treatments, which consisted of three different varieties: Sunrise Solo, Tainung nº1 and local. The psychochemical properties were analysed for plant height; intersection height of first fruits; stem diameter; male, female and hermaphroditic flower percentage; fruit number per plant; production; yield; normal fruits percentage, carpeloid and pentandric fruits; pulp matter; pulp length; pulp diameter; pulp shape; pulp cavity; pulp thickness; peel performance; pulp performance; seeds performance; seeds number; soluble solids; pH; titratable acidity; ratio; technological index; ascorbic acid and reducing sugars. Furthermore, most agronomic descriptors showed high heritability; besides that, the varieties Sunrise Solo and Tainung nº1 performed the best results in Botucatu.

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Published

2018-08-08

How to Cite

SILVA, M. de S., LEONEL, S., SOUZA, J.M.A., MODESTO, J.H., FERREIRA, R.B. and BOLFARINE, A.C.B., 2018. Evaluation of papaya genotypes using agronomic descriptors and estimation of genetic parameters . Bioscience Journal [online], vol. 34, no. 4, pp. 943–951. [Accessed8 August 2022]. DOI 10.14393/BJ-v34n1a2018-37164. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/37164.

Issue

Section

Agricultural Sciences