Yield and biological nitrogen fixation of common bean (Phaseolus vulgaris L.) in Peru

Manrique, Antonio J; Manrique, K.; Nakahodo, J.

doi:10.1007/978-94-011-2100-2_8

Cited by 3 publications

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“…One additional kilogram of climbing bean seed planted raised per capita consumption expenditure by 0.9% and decreased the likelihood of being poor by 0.6% (Katungi et al, 2018). Climbing beans, which have a much greater biomass and longer growth cycle that bush types, were reported to have the highest levels of symbiotic nitrogen fixation (SNF) found in bean present (Graham & Rosas, 1977; Manrique et al, 1993), and they can have a positive N balance (Beebe, 2012).…”

Section: Introductionmentioning

confidence: 99%

Climbing bean breeding for disease resistance and grain quality traits

Portilla

Mayor-Durán²,

Buendia

et al. 2021

Legume Science

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Common bean (Phaseolus vulgaris) is grown in two growth types, bush and climbing beans. The latter are preferred in several regions in East and Southern African as well as in Latin America (dominant in Rwanda and Colombia), due to higher yields and resilience compared with bush type. Common bean productivity is reduced by several pests and diseases between them. Bean common mosaic virus (BCMV), which is the most common and destructive poty-virus affecting bean production worldwide, and anthracnose, caused by the fungus Colletotrichum lindemuthianum, can cause yield losses as high as 95% in susceptible cultivars. Further important traits in common bean are high micro mineral contents to alleviate malnutrition and grain quality traits such as the canning quality of bean varieties, which is important for farmers to access the processing market. In this study, new climbing bean populations were generated (coded ENF/CGA) to combine high seed iron (SdFe) and multiple diseases resistance. Double and triple crosses between parents with virus and anthracnose resistance, high SdFe, and good agronomic traits were employed. In trials in Darien and Popayan, lines were identified that combine BCMNV/BCMV and anthracnose resistance with seed yields above 4000 kg/ha. Phenotypic evaluations validated the usefulness of SNP markers tagging the genes bc-3 and I for BCMN and Co-3 for anthracnose as a selection tool for field resistance. These results show the genetic potential of the lines that are now being tested in target regions to be delivered to smallholder farmers.anthracnose, BCMV, common bean (Phaseolus vulgaris), grain quality traits, marker-assisted selection | INTRODUCTIONCommon bean (Phaseolus vulgaris L.) is the most important grain legume for direct human consumption (Broughton et al., 2003;Câmara et al., 2013), a staple crop in many tropical regions in East and Southern African as well as in Latin America. It is grown especially by poor smallholder farmers and a valuable component of their diets due to its high nutritional value, rich in protein, micro minerals (iron and zinc), and vitamins (folate) (Messina, 1999). The global production of dry beans has reached 32 million tons per year (FAO, 2017).

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