Genetic variance, heritability, and expected response from selection are useful in devising alternative methods and criteria of selection. The objectives of this study were to estimate these for seed yield and its components from 200 F2 populations involving 80 cultivars and lines of mostly small...
Nienhuis, James
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Singh, Shree P.
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[Genetic variance, heritability and expected response from selection for dry bean (Phaseolus vulgaris L.) yield and its components]
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Genetic variance, heritability and expected response from selection for dry bean (Phaseolus vulgaris L.) yield and its components
Gutiérrez F., José Ariel
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Singh, Shree P.
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[Yielding ability of different types of common bean crosses]
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Yielding ability of different types of common bean crosses
The basic concepts of the genetic improvement of beans through hybridization are described. In general, the breeding process involves the following phases: (1) development of exptl. lines, (2) evaluation of exptl. lines and identification of new cv., and (3) commercialization of new cv. The main ...
Se describen los conceptos basicos de mejoramiento genetico del frijol por hibridacion. En general, el proceso de mejoramiento involucra las siguientes fases: 1) el desarrollo de lineas exptl., 2) la evaluacion de las lineas exptl. y la identificacion de los nuevos cv. y 3) la comercializacion de...
Singh, Shree P.
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[Conceptos basicos para el mejoramiento del frijol por hibridacion]
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Conceptos basicos para el mejoramiento del frijol por hibridacion
Yields of large-seeded Andean (A) common bean (Phaseolus vulgaris L.) cultivars of Chile and Nueva Granada races are 40 to 60% lower compared to their Middle American (M) counterparts of small-seeded Mesoamerica and medium-seeded Durango races. Our objective was to use the concept of congruity ba...
Singh, Shree P.
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Terán Santofimio, Henry
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Muñoz Perea, Carlos Germán
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Osorno Gonzalez, JM
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[Selection for seed yield in Andean intra-gene pool and Andean x middle American inter-gene pool populations of common bean]
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Selection for seed yield in Andean intra-gene pool and Andean x middle American inter-gene pool populations of common bean
The value of intra- and interracial populations in common bean (Phaseolus vulgaris L.) needs to be determined in order to create useful genetic variation for maximizing gains from selection, broadening the genetic base of commercial cultivars, and making efficient use of available resources. Five...
Welsh, W
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Bushuk, W
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Roca, William M.
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Singh, Shree P.
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[Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.]
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Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.
Eighty-three F2-derived F8 recombinant inbred lines (RILs) randomly selected from a population (TY 8419) of two common bean genotypes (Pinto UI 114 x ICA Pijao), the two parents, and a control cultivar (Topcrop) were screened for their reaction to bean golden mosaic virus (BGMV) under glasshouse ...
Morales, Francisco José
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Singh, Shree P.
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[Breeding for resistance to bean golden mosaic virus in an interracial population of Phaseolus vulgaris L]
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Breeding for resistance to bean golden mosaic virus in an interracial population of Phaseolus vulgaris L
Nineteen early maturing, indeterminate common bean parents were crossed with a tester line of normal maturity. All parents, F1 hybrids, F2's, and backcross generations were evaluated at CIAT-Palmira, Colombia. All 19F1 populations flowered and matured almost as early as the respective early paren...
White, Jeffrey W.
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Singh, Shree P.
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[Sources and inheritance of earliness in tropically adapted indeterminate common beans]
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Sources and inheritance of earliness in tropically adapted indeterminate common beans
Rosales Serna, Rigoberto
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Gutiérrez, J.A.
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Singh, Shree P.
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[Selección por rendimiento en generaciones avanzadas de frijol bajo estrés de humedad]
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Selección por rendimiento en generaciones avanzadas de frijol bajo estrés de humedad
Rosales Serna, Rigoberto
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Gutiérrez, J.A.
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Singh, Shree P.
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[Evaluación y selección por rendimiento en poblaciones segregantes de frijol común bajo estrés hídrico]
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Evaluación y selección por rendimiento en poblaciones segregantes de frijol común bajo estrés hídrico