Physicochemical variability in Brazilian guava accessions grafted onto a nematode resistant rootstock

Authors

  • Andressa Mirelle Santos-Lourenço Universidad Estatal de Feira de Santana. Petrolina, PE
  • Carlos Antônio Fernandes-Santos Embrapa Semiárido. Petrolina, PE, 56302-970. CP. 23. Brasil
  • Sérgio Tonetto de Freitas Embrapa Semiárido. Petrolina, PE, 56302-970. CP. 23. Brasil
  • Danillo Olegario Mattos da Silva Uninassau. Petrolina, PE, 56302-970. CP. 23. Brasil

DOI:

https://doi.org/10.29312/remexca.v15i7.3509

Keywords:

Psidium guajava, BRS Guaraçá, bioactive compounds, vitamin C

Abstract

Guava is a fruit species of worldwide importance due to its characteristics favorable for consumption; for example, aroma, flavor, texture and vitamin C. This study aimed to characterize the physicochemical variability of Brazilian guava accessions grafted onto BRS Guaraçá, a nematode resistant rootstock, to guide the development of new cultivars. Fruits from 87 accessions from the Embrapa Semiárido Psidium Germplasm Bank, sampled in 12 Brazilian States and established at Petrolina, PE, Brazil, were analyzed in 2020 for peel and pulp color, pulp firmness, titratable acidity, soluble solids, vitamin C, lycopene, and β-carotene in the fresh pulp. The data were subjected to analysis of variance and histograms construction. The results were significant (p< 0.05) for all quantitative variables, indicating phenotypical variability among accessions. The β-carotene contents ranged from 0.02 to 1.83 mg.100 g-1, with a mean of 0.49 mg 100 g-1. The lycopene mean value was 0.77 mg100 g-1, ranging from 0 to 3.7 mg 100 g-1. Accessions GUA33PE and GUA135RR showed high pulp firmness values and are recommended for the development of cultivars with greater resistance to transport. Accessions GUA31PI, with 686 mg 100 g-1 and GUA48SE, with 621 mg 100 g-1, showed high values of vitamin C and are recommended for the development of cultivars with higher contents of this bioactive compound.

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References

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Published

2024-12-13

How to Cite

Santos-Lourenço, Andressa Mirelle, Carlos Antônio Fernandes-Santos, Sérgio Tonetto de Freitas, and Danillo Olegario Mattos da Silva. 2024. “Physicochemical Variability in Brazilian Guava Accessions Grafted onto a Nematode Resistant Rootstock”. Revista Mexicana De Ciencias Agrícolas 15 (7). México, ME:e3509. https://doi.org/10.29312/remexca.v15i7.3509.

Issue

Vol. 15 No. 7 (2024)

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Articles

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