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      'IAC IMPERADOR': early maturity "carioca" bean cultivar

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          Abstract

          In the state of São Paulo, common bean is an important crop and the Agronomic Institute (Instituto Agronômico - IAC) registered the "carioca" (beige with brown stripes) bean cultivar IAC Imperador in the MAPA/RNC, exhibiting mean yield of 2,266 kg/ha in the 17 environments evaluated, a 75-day cycle, resistance to soil diseases and high quality seeds.

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          Genetic gain in the breeding program of common beans at IAC from 1989 to 2007

          The goal of the present work was to evaluate the genetic gain obtained in grain yield for the common bean genotypes from 1989 until 2007, at the Instituto Agronômico de Campinas, in the state of São Paulo. Genetic gain has been separated into two research periods; the first, from 1989 to 1996, and the second, from 1997 to 2007. In the first period, a genetic gain of 1.07 % per year was obtained, whereas for the second period, the gain was zero. However, the mean yield of the evaluated lines was approximately 1000 kg ha-1 superior to the figures obtained in the first period. The main cause for the absence of genetic gain in the second period is that the focus of the breeding program was changed to grain quality. The individualized analysis of the genotypes with carioca grains in the second period indicated the lack of genetic gain during the investigated period.
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            IAC Formoso: new carioca common bean cultivar

            The MAPA/RNC registered the cultivar IAC Formoso with carioca grain of the Instituto Agronômico IAC, in view of the high mean yield in 24 environments (approximately 2816 kg ha-1), resistance to anthracnose (Colletotrichum lindemuthianum) and Fusarium solani, high grain quality and a cycle of 85 days from emergence to harvest.
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              IAC Alvorada and IAC Diplomata: new common bean cultivars

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                Author and article information

                Journal
                cbab
                Crop Breeding and Applied Biotechnology
                Crop Breed. Appl. Biotechnol.
                Crop Breeding and Applied Biotechnology (Viçosa, MG, Brazil )
                1518-7853
                1984-7033
                December 2012
                : 12
                : 4
                : 297-300
                Affiliations
                [01] Campinas SP orgnameInstituto Agronômico Brazil
                [02] São Paulo SP orgnameAgência Paulista de Tecnologia dos Agronegócios Brazil
                Article
                S1984-70332012000400012 S1984-7033(12)01200400012
                10.1590/S1984-70332012000400012
                c8695456-3ac4-46f3-95f8-6d5304998e3d

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 27 September 2012
                : 15 June 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 3, Pages: 4
                Product

                SciELO Brazil

                Categories
                Cultivar Release

                genetic breeding,Phaseolus vulgaris L.,common bean,yield

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