Genetic Improvement of Common Beans and the Challenges of Climate Change

Beebe, Stephen E.; Ramírez, Julián; Jarvis, Andy; Rao, Idupulapati M.; Mosquera, Gloria; Bueno, Juan Miguel; Blair, Matthew W.

doi:10.1002/9780470960929.ch25

Cited by 133 publications

(112 citation statements)

References 45 publications

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“…On average, rainfall recorded in those areas was <400 mm, during the three months following the main sowing dates for beans, which was less than the optimum rainfall of 400 mm (Broughton et al, 2003). Similarly, drought has been reported to be widespread in the bean growing areas in eastern and southern Africa, leading to bean yields less than 400 kg ha -1 year -1 (Beebe et al, 2011;Beebe et al, 2013) which is smaller than the optimum production of 1,500 kg ha -1 year -1 realised in less drought-constrained areas in eastern Africa (Hillocks et al, 2006).…”

Section: Drought Occurrence In Common Bean Production Areasmentioning

confidence: 99%

“…Agronomic practices such as application of P-fertilizers and irrigation can reduce the losses caused by low levels of plant-available P and moisture deficit in soils, respectively. However, farmers in resource-constrained SSA cannot afford to buy commercial P-fertilizers and irrigating their farms (Beebe et al, 2011) on top of concerns about the environmental problems as a result of such intensive agriculture. Therefore, this calls for development and promotion of cheap and environmentally sound P-fertilizer sources such as organic materials to offset the effects of low levels of P in the soil.…”

Section: Management Of Plant-available P and Moisturementioning

confidence: 99%

“…The low level of production in SSA has been attributed partly to low levels of soil plant-available P and drought stress, caused by climate change variability (Beebe et al, 2011;Beebe et al, 2013;Wortman et al, 2004). Significant research and development efforts have always focused on overcoming the limitations of these production constraints, however, most of the efforts (Acosta-Díaz, Acosta-Gallegos, Trejo-López, Padilla-Ramírez, & Amador-Ramírez, 2009;Beebe et al, 2006;Cichy, Blair, Mendoza, Snapp, & Kelly, 2009;Manjeru, Madaanzi, Makeredza, Nciiza, & Sithole, 2007;Miller, Ochoa, Nielsen, Beck, & Lynch, 2003) address individual abiotic stress factors, with limited regard for the possible interactive effects under field conditions.…”

Section: Region/countrymentioning

confidence: 99%

“…In resource-poor farming of SSA, P is one of the most deficient nutrients for cultivation of common bean (Beebe et al, 2011;. Soils are considered deficient in P if the soil plant-available P contents are less than 40 mg kg -1 P determined by Bray-1 method (Mourice & Tryphone, 2012).…”

Section: Plant-available Soil P In Common Bean Producing Areas In Ssamentioning

confidence: 99%

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Development of Common Bean (Phaseolus Vulgaris L.) Production Under Low Soil Phosphorus and Drought in Sub-Saharan Africa: A Review

Namugwanya¹,

Tenywa²,

Otabbong³

et al. 2014

JSD

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Owing to its nutritional value, especially proteins, carbohydrates, vitamins and micronutrients, common bean (Phaseolus Vulgaris L.) has been recognised as a crop that could ensure food security mostly, in Sub-Saharan Africa, where its productivity is low. Its low productivity is attributed to a milliard of constraints, of which low plant-available phosphorus (P) and limited moisture in soil are among the major limiting factors. Synergistic effects of the two factors are accentuated in Sub-Saharan African region. This paper discloses the importance of the synergistic effects of plant-available P and moisture in soils on common bean production. It has been observed that studies investigating impacts of interactions of low P levels and moisture deficit conditions in soils are yet to be conducted. Identification of traits that contribute to high performance under low P availability and moisture deficit in the same genotypes remains a major research and development challenge. However, engineering new genotypes alone may not alleviate the problem of ensuring improvement of high bean yields. Root architecture and root exploration of the soil that enable the plant to access the two soil resources, traditional methods that preserve good status of organic matter in soils and moisture and soil preparation techniques are equally important. This, calls for holistic investigations that include soil plant-available P and moisture, common bean genotypes and their root systems, and agronomic measures to facilitate a comprehensive evaluation of impacts of deficiencies in soils on common bean yields. This paper explores and synthesizes existing research and development of common bean grown in soils deficient in plant-available P and moisture, aiming at designing future research to enhance common bean productivity.

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Section: Drought Occurrence In Common Bean Production Areasmentioning

confidence: 99%

Section: Management Of Plant-available P and Moisturementioning

confidence: 99%

Section: Region/countrymentioning

confidence: 99%

Section: Plant-available Soil P In Common Bean Producing Areas In Ssamentioning

confidence: 99%

See 2 more Smart Citations

Development of Common Bean (Phaseolus Vulgaris L.) Production Under Low Soil Phosphorus and Drought in Sub-Saharan Africa: A Review

Namugwanya¹,

Tenywa²,

Otabbong³

et al. 2014

JSD

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“…Malawi depends on agriculture where in every four years; farmers are experiencing crop losses due to drought (Kambewa, 2003). Beebe et al (2011) reported that occasional severe droughts affecting Malawi are often associated with El Niño weather events. Farmers relying on rain fed agriculture are no more producing the required quantities from their fields even providing all the necessary crop inputs.…”

Section: Introductionmentioning

confidence: 99%