Divergence between transgenic and non-transgenic corn cultivars cultivated in the Cerrado

Authors

  • Márcio Eckardt Instituto Federal de Educação, Ciência e Tecnologia do Tocantins
  • Ila Raquel Mello Cardoso Universidade Católica do Tocantins
  • Nubia Adriane da Silva Instituto Federal de Educação, Ciência e Tecnologia do Tocantins, Campus Paraíso do Tocantins, Paraíso do Tocantins, TO
  • Joenes Mucci Peluzio Universidade Federal do Tocantins. Campus Palmas, Palmas, TO
  • Flávio Sérgio Afférri Universidade Federal de São Carlos, Centro de Ciências Naturais. Lagoa do Sino, SP

DOI:

https://doi.org/10.20873/uftv8-11648

Abstract

The growing use of transgenics in breeding programs can lead to adverse effects on corn crop. The comparative study between transgenic and non-transgenic cultivars in the Cerrado biome of Tocantins/Brazil available in the market, in different nitrogen doses, sought to identify the effects of technologies on genetic diversity. Two trials were conducted in the municipality of Paraíso do Tocantins, and two trials were conducted in Palmas city, with sowing dates in November 2018 and January 2019. The experimental design was randomized blocks with three replications. In each trial, top-dressing fertilization was performed with 50, 100, and 150 kg of N (Nitrogen) per ha-1. For each dose of N, and for joint analysis, the relative contribution of characteristics, dissimilarity measurements, and group formation were obtained. In addition, the joint analysis was submitted to a hierarchical average distance method. The composition of similar groups was mostly formed by transgenic and non-transgenic cultivars. Fertilizing 100 kg of N per ha-1 has provided the largest number of groups. The characteristics that most contributed relatively to the dissimilarity were the number of grains per row and the length of the corn cob.

Published

2021-10-26

How to Cite

Eckardt, M., Raquel Mello Cardoso, I. ., Adriane da Silva, N., Mucci Peluzio, J., & Sérgio Afférri, F. . (2021). Divergence between transgenic and non-transgenic corn cultivars cultivated in the Cerrado. DESAFIOS - Revista Interdisciplinar Da Universidade Federal Do Tocantins, 8(3), 87–97. https://doi.org/10.20873/uftv8-11648

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Section

Artigos