Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común

Chaves-Barrantes, Néstor Felipe; Polanía, José A.; Muñoz-Perea, Carlos Germán; Rao, Idupulapati M.; Beebe, Stephen E.

doi:10.15517/ma.v29i1.27618

Cited by 8 publications

(6 citation statements)

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“…Although some of the elite lines in this study did not perform well in the low N soil at Isabela, Puerto Rico, they possess traits that may be useful as parents to develop cultivars for CAC. For example, the small red line SER 118 has yielded well and expressed greater yield efficiency in soils in Colombia having moderate levels of low P stress (Beebe et al, 2008) and terminal drought (Chaves-Barrantes et al, 2018). SEF 16 has resistance to BGYMV and has performed well in terminal drought and greater than optimum night temperatures (Chaves-Barrantes, 2015).…”

Section: Discussionmentioning

confidence: 99%

Performance of Mesoamerican bean (Phaseolus vulgaris L.) lines in an unfertilized oxisol

et al. 2021

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Introduction. Common beans (Phaseolus vulgaris L.) in Central America and the Caribbean are often produced on low fertility soils which reduces crop yield. Bean breeding programs need to identify genotypes that have superior adaptation to these conditions. Objective. Identify Mesoamerican bean germplasm lines with superior adaptation to low soil fertility. Materials and methods. The performance of twenty-seven Mesoamerican bean (Phaseolus vulgaris L.) lines from the Bean Abiotic Stress Evaluation (BASE) 120 panel were evaluated in an unfertilized oxisol at Isabela, Puerto Rico over five growing seasons (four-year period from 2015-2018). The lines were inoculated with a mixture of Rhizobium etli and R. tropici to promote symbiotic nitrogen fixation (SNF). Results. Four lines produced mean seed yields >1,200 kg ha-1 and had estimates of nitrogen derived from the atmosphere (NDFA) >50 %. Greater nodule number was positively correlated with % NDFA, later maturity and seed yield. The heat and drought tolerant small red cultivar ‘Rojo Chortí’ and the heat tolerant white cultivar ‘Verano’ had among the smallest apparent C isotope discrimination values suggesting greater water use efficiency. Among the elite lines in the trial, root rot damage was minimal and the basal root growth angles were intermediate (40-60 %), which favored the uptake of water and soil nutrients. Conclusion. Mesoamerican bean lines with superior seed yield and enhanced symbiotic nitrogen fixation in a low fertility soil were identified. Many of these lines also possess resistance to other biotic and abiotic factors that limit bean seed yield in Central America and the Caribbean.

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Section: Discussionmentioning

confidence: 99%

Performance of Mesoamerican bean (Phaseolus vulgaris L.) lines in an unfertilized oxisol

et al. 2021

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“…Los resultados del actual estudio difieren de otras investigaciones, pues reportan que el contenido de clorofila aumentó en plantas con déficit hídrico (Polanía et al, 2009;Chaves-Barrantes et al, 2018).…”

Section: Discussionunclassified

“…Su cultivo está ampliamente difundido en el mundo, pero, América Latina (principalmente México, Bolivia y Perú) es considerado como la zona de mayor producción y consumo (Voysest, 2000), debido a que aporta el 45% de la producción mundial (Chaves-Barrantes et al, 2018); producción a la que Perú en el año 2018 aportó con 75.7 Mg, cosechadas de 65 988 ha (INEI, 2018).…”

Section: Introductionunclassified

Efecto del estrés hídrico sobre el comportamiento morfo-fisiológico de cinco genotipos de frijol común (Phaseolus vulgaris L.)

Culqui¹,

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Valqui³

et al. 2021

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La deficiencia hídrica es una de las principales limitaciones para la producción de frijol común en el mundo. En ese sentido, el objetivo de este estudio fue determinar la respuesta fisiológica y morfológica de cinco genotipos de frijol (INDES-01, INDES-02, INDES-03, INDES-04, INDES-05) sometidos a diferentes frecuencias de déficit hídrico (intervalos de riego de 0, 5, 10 y 15 días). Para ello, se utilizó un diseño completamente al azar con arreglo factorial, con plantas cultivadas en recipientes individuales por un periodo de 90 días. Los resultados mostraron que las condiciones de déficit hídrico afectaron el índice de clorofila, área foliar, longitud de raíz y materia seca. Asimismo, se observó que el efecto del estrés hídrico, en cuanto a magnitud, depende de los genotipos y su nivel de tolerancia al estrés hídrico.

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“…Interestingly, both GGRs were earlier to flower; therefore, the reduction in PV values in these lines might have resulted from the earlier effects of high temperature on anther indehiscence [50], degeneration of the tapetum layer and a decrease in pollen production [51]. Earliness allowed these lines to improve heat tolerance through different avoidance mechanisms [48] such as CB accumulation combined with earlier flowering, as well as increased mobilization of photoassimilates towards grain formation, resulting in better yield mainly due to high SNA values [11,54].…”

Section: Importance Of Earliness and Sink Strength To Tolerate Acid Soil And High Temperature Stressmentioning

confidence: 99%

Adaptation of Interspecific Mesoamerican Common Bean Lines to Acid Soils and High Temperature in the Amazon Region of Colombia

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et al. 2021

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Knowledge of the physiological basis for improved genetic adaptation of common bean (Phaseolus vulgaris L.) lines to acid soils and high temperature conditions in the Amazon region of Colombia is limited. In this study, we evaluated the differences among 41 common bean lines in energy use, leaf cooling, photosynthate partitioning to pod formation and grain filling, and grain yield over two seasons under acid soil and high temperature stress in the Amazon region of Colombia. Common bean lines evaluated included medium and large seeded interspecific lines of Mesoamerican and Andean gene pools with different levels of adaptation to abiotic stress conditions and some lines are improved for iron and zinc (biofortified) concentration in seeds. We found three bean lines (GGR 147, SMG 21 and SMG 12) that were superior in their photosynthetic response, leaf cooling, photosynthate partitioning ability to pod formation and grain filling, resulting in grain yields exceeding 1900 kg ha−1 under acid soil and high temperature stress conditions. The superior photosynthetic performance was attributed to the efficient use of absorbed energy on the electron level in thylakoids, which is mainly oriented to a higher quantum yield of PSII (ΦII), lower energy dissipation in the form of heat (ΦNPQ), high linear electron flow (LEF) and high fraction of PSI centers in open state (PSIopen). We speculate that these photosynthetic and photosynthate partitioning responses of superior bean lines are part of the genetic adaptation to acidic soils and high temperature stress conditions. Among the evaluated bean lines, three lines (GGR 147, SMG 21 and SMG 12) combined the desirable attributes for genetic improvement of stress tolerance and biofortification. These lines can serve as parents to further improve traits (energy use efficiency and multiple stress resistance) that are important for bean production in the Amazon region.

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Caracterización fenotípica por resistencia a sequía terminal de germoplasma de frijol común

Cited by 8 publications

References 25 publications

Performance of Mesoamerican bean (Phaseolus vulgaris L.) lines in an unfertilized oxisol

Performance of Mesoamerican bean (Phaseolus vulgaris L.) lines in an unfertilized oxisol

Efecto del estrés hídrico sobre el comportamiento morfo-fisiológico de cinco genotipos de frijol común (Phaseolus vulgaris L.)

Adaptation of Interspecific Mesoamerican Common Bean Lines to Acid Soils and High Temperature in the Amazon Region of Colombia

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