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<p>Arabica coffee is a crop adapted to sites with higher altitudes and milder temperatures. However, its cultivation in marginal regions can result in satisfactory yields, as long as there is a correct choice of the most adapted cultivars. The aim was to identify the dwarf Arabica coffee cultivars with the best adaptability and stability in a low-altitude region. The experiment was carried out in Northeastern São Paulo state, Brazil, at 565&#xa0;m altitude. The experimental design was randomized blocks, with four replicates, in a split-plot scheme, with 17 dwarf Arabica coffee cultivars (IAC Catuaí SH3, Catuaí Amarelo IAC 62, Catuaí Vermelho IAC 99, IAC Ouro Verde, IAC Ouro Amarelo, Obatã IAC 1669–20, Obatã Amarelo IAC 4739, Tupi IAC 1669–33, Tupi IAC 125, Catiguá MG1, Oeiras MG 6851, Pau-Brasil MG1, Sacramento MG1, IPR99, IPR100, IPR103 and Sabiá Tardio) and six seasons. Four methods were used to evaluate adaptability and stability: Eberhart &amp; Russell, Lin &amp; Binns, Annicchiarico, and Harmonic Mean of Relative Performance of Genotypic Values. Yields similar to those obtained in regions more favorable to coffee cultivation were obtained with the cultivars Tupi IAC 1669–33, IAC Obatã 4739, IAC Ouro Amarelo, Obatã IAC 1669–20 and Catuaí Vermelho IAC 99, exceeding 50 bags ha<sup>−1</sup>, which indicates good adaptation in a low-altitude region. The classification of the cultivars regarding adaptability and yield stability differed between the methods; however, the cultivar Tupi IAC 1669–20 stood out in the environments classified as general, favorable and unfavorable, proving its wide adaptability and stability.</p>

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Adaptability and stability of Coffea arabica cultivars for yield in low-altitude region

  • 期刊论文

  • 发表日期：

    2025年4月25日

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  • Neuza Helena Carvalho de Oliveira,
  • Rinaldo César de Paula,
  • Vinícius Augusto Filla,
  • Anderson Prates Coelho,
  • Leandro Borges Lemos

摘要

Arabica coffee is a crop adapted to sites with higher altitudes and milder temperatures. However, its cultivation in marginal regions can result in satisfactory yields, as long as there is a correct choice of the most adapted cultivars. The aim was to identify the dwarf Arabica coffee cultivars with the best adaptability and stability in a low-altitude region. The experiment was carried out in Northeastern São Paulo state, Brazil, at 565 m altitude. The experimental design was randomized blocks, with four replicates, in a split-plot scheme, with 17 dwarf Arabica coffee cultivars (IAC Catuaí SH3, Catuaí Amarelo IAC 62, Catuaí Vermelho IAC 99, IAC Ouro Verde, IAC Ouro Amarelo, Obatã IAC 1669–20, Obatã Amarelo IAC 4739, Tupi IAC 1669–33, Tupi IAC 125, Catiguá MG1, Oeiras MG 6851, Pau-Brasil MG1, Sacramento MG1, IPR99, IPR100, IPR103 and Sabiá Tardio) and six seasons. Four methods were used to evaluate adaptability and stability: Eberhart & Russell, Lin & Binns, Annicchiarico, and Harmonic Mean of Relative Performance of Genotypic Values. Yields similar to those obtained in regions more favorable to coffee cultivation were obtained with the cultivars Tupi IAC 1669–33, IAC Obatã 4739, IAC Ouro Amarelo, Obatã IAC 1669–20 and Catuaí Vermelho IAC 99, exceeding 50 bags ha−1, which indicates good adaptation in a low-altitude region. The classification of the cultivars regarding adaptability and yield stability differed between the methods; however, the cultivar Tupi IAC 1669–20 stood out in the environments classified as general, favorable and unfavorable, proving its wide adaptability and stability.