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Presents findings of a study carried out to determine differences between 24 sorghum varieties in digestibility of leaf and stem components and yield of stover. Emphasis is given to encourrage breeds involved in slelecting sorghum varieties for use on small farms where sorghum stover is an import...


Reed, J.D.Tedla, A.Jutzi, S.C.[Variations de la digestibilite des residus d'une variete de sorgho a une autre]Variations de la digestibilite des residus d'une variete de sorgho a une autre

Little information is available regarding the relationship of Caribbean bean landraces with the Andean and Mesoamerican gene pools of common bean (Phaseolus vulgaris L.) While small-seeded Mesoamerican black beans are prevalent in parts of the Caribbean, many of the regionally preferred red mottl...


Durán, L.A.Blair, Matthew W.Giraldo Zapata, Martha C.Macchiavelli, Raúl E.Prophete, ENin, JCBeaver, James S.[Morphological and molecular characterization of common bean landraces and cultivars from the Caribbean]Morphological and molecular characterization of common bean landraces and cultivars from the Caribbean

If we are to breed common bean (Phaseolus vulgaris L.) for durable resistance to diseases, we must understand pathogenic variation and find sources of resistance. Our first objective was to determine the patterns of pathogenic variation found among isolates of Phaeoisariopsis griseola (PG), the f...


Pastor Corrales, Marcial A.Jara, Carlos E.Singh, Shree P.[Pathogenic variation in, sources of, and breeding for resistance to Phaeoisariopsis griseola causing angular leaf spot in common bean]Pathogenic variation in, sources of, and breeding for resistance to Phaeoisariopsis griseola causing angular leaf spot in common bean

Common bean (Phaseolus vulgaris L.) proved to be very sensitive of low pH (4.3), with large genotypic differences in proton sensitivity. Therefore, proton toxicity did not allow the screening of common bean genotypes for aluminium (Al) resistance using the established protocol for maize (0.5 mM C...


Rangel Becerra, AFMobin, MRao, Idupulapati M.Horst, Walter J.[Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution]Proton toxicity interferes with the screening of common bean (Phaseolus vulgaris L.) genotypes for aluminium resistance in nutrient solution

Cassava (Manihot esculenta) is an important staple crop, especially in the arid tropics. Because roots of commercial cassava cultivars contain a limited amount of provitamin A carotenoids, both conventional breeding and genetic modification are being applied to increase their production and accum...


Welsch, RArango, JacoboBar, CSalazar, BAl-Babili, S.Beltrán Giraldo, Jorge AlonsoChavarriaga Aguirre, PaulCeballos, H.Tohme, Joseph M.Beyer, Peter[Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]]Provitamin A accumulation in Cassava (Manihot esculenta) roots driven by a single nucleotide polymorphism in a phytoene synthase gene[W]

Low phosphorus availability is a primary constraint to crop production in developing countries. Adventitious roots play an important role in phosphorus acquisition, as they are localized near the soil surface where phosphorus is relatively abundant. A population of recombinant inbred lines of Pha...


Ochoa, IEBlair, Matthew W.Lynch, Jonathan P.[QTL analysis of adventitious root formation in common bean under contrasting phosphorus availability]QTL analysis of adventitious root formation in common bean under contrasting phosphorus availability

Evaluation of natural Stylosanthes germplasm leading to the release of 8 commercial cultivars began in South America in the late 1960s and early 1970s. Perceived deficiencies in existing germplasm, including anthracnose susceptibility, led to the initiation of Stylosanthes breeding projects as ea...


Miles, John W.Grof, B[Recent advances in studies of anthracnose of Stylosanthes. III. Stylosanthes breeding approaches in South America]Recent advances in studies of anthracnose of Stylosanthes. III. Stylosanthes breeding approaches in South America

The objective of this study was to estimate the results of the upland rice (Oryza sativa L.) breeding program conducted by the Brazilian Agricultural Research Corporation (Embrapa) and collaborators over the period of 1984 to 2009 covering 25 annual steps of improvement. The best lines generated ...


Breseghello, FlávioPeixoto de Morais, OValle Pinheiro, PSimoes Silva, CMaia de Castro, E. daGuimaraes, Elcio PerpétuoPereira de Castro, APereira, JAMatos Lopes, A. deUtumi, MMPereira de Oliveira, J[Results of 25 years of upland rice breeding in Brazil]Results of 25 years of upland rice breeding in Brazil

A literature review is presented of the different concepts related to biological N fixation (BNF) in beans as well as the procedures to establish breeding programs leading to increase BNF. The N requirements of bean plants are determined as well as the sources from which it can be obtained; the b...


Rosas, J.C.Kipe-Nolt, Judith A.Henson, R.A.Bliss, Fredrick A.[Estrategias de mejoramiento para incrementar la capacidad de fijacion biologica de nitrogeno del frijol comun en America Latina]Estrategias de mejoramiento para incrementar la capacidad de fijacion biologica de nitrogeno del frijol comun en America Latina
Miklas, PNSingh, Shree P.Kelly, James D.[Registration of anthracnose-resistant pinto bean germplasm line USPT-ANT-1]Registration of anthracnose-resistant pinto bean germplasm line USPT-ANT-1

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