Maize breeding for sustainable agricultural systems

In the present work, a recurrent selection program was initiated, between and within half-sib families in landrace maize, with the objective of obtaining, at the end of the process, a productive maize variety for agroecological cultivation systems adapted to the northeast region. A base population c...

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Published inRevista verde de agroecologia e desenvolvimento sustentável Vol. 16; no. 4; pp. 338 - 344
Main Authors Oliveira, Matheus Lima, Luz, Lucas Nunes da, Julião, Ana Kelly de Sousa, Lima, Antonio Fabio da Silva, Gouveia, Francisco Aglauberto de Lima, Gadelha, Maryssol Torres
Format Journal Article
LanguageEnglish
Published Grupo Verde de Agroecologia e Abelhas (GVAA) 01.10.2021
Subjects
Agroecologia
Agroecology
Food security
Landrace
Recurrent selection
Segurança alimentar
Seleção recorrente
Semente crioula
Zea mays L
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Summary:In the present work, a recurrent selection program was initiated, between and within half-sib families in landrace maize, with the objective of obtaining, at the end of the process, a productive maize variety for agroecological cultivation systems adapted to the northeast region. A base population composed of 10 landrace varieties donated by farmers the region. In the base population, 60 half-sib families were selected. These were grown for selection among families, in Capistrano/CE, at Fazenda Repouso das Águas, in the agricultural year 2017/2018, in randomized blocks with three replications. It was used as a witness for a variety of BRS-Caatingueiro. The selection within the families was carried out in the agricultural year 2018/2019 at the Fazenda Experimental Piroás located in the municipality of Redenção/CE. 15 characteristics were evaluated in the selection among and 10 in the within families. In the selection between, the average production and productivity was 5.033,90 kg.ha-1 and 4.316,04 kg.ha-1, respectively. The superiority in relation to the witness was 8.67%. In the selection within, the average production and productivity was 4.448,413 kg.ha-1 and 3.998,41 kg.ha-1, respectively.
ISSN:1981-8203
1981-8203
DOI:10.18378/rvads.v16i4.8507