Genealogy and genetic base of Brazilian cotton cultivars
نویسندگان
چکیده
Cotton is an essential worldwide commodity, and Brazil ranks fourth in world production second export. The present work aimed to gather the genealogies estimate genetic base of 109 Brazilian cotton cultivars released from 1932 2021. Twelve 68 ancestors identified contributed with 52.03% genes, 33% resulted direct selection landraces or old cultivars, evidencing a narrow base. Over time, especially after 1990, increases number added breeding programs were driven by need reduce cultivars' cycle for coexistence pests make them suitable mechanized cultivation new agricultural frontiers. However, still have base, important participation CNPA SRI3, CKR 100W, C-77 Express.
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ژورنال
عنوان ژورنال: Crop Breeding and Applied Biotechnology
سال: 2023
ISSN: ['1984-7033', '1518-7853']
DOI: https://doi.org/10.1590/1984-70332023v23n2a14