Root growth of four common bean cultivars in relation of drought tolerance in environments with contrasting soil types

Sponchiado, B.N Y White, Jeffrey W Y Jones, P.G Y Castillo, Jesús A (1989) Root growth of four common bean cultivars in relation of drought tolerance in environments with contrasting soil types. Experimental Agriculture. ISSN 00144797

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Resumen

Root growth of two drought tolerant and two drought sensitive bean (Phaseolus vulgaris L.) lines was compared at two locations in Colombia differing primarily in soil conditions. At Palmira, roots of drought tolerant lines reached a depth of 1.3 m, while drought sensitive lines only reached 0.8 m. These differences were associated with differences in seed yield, crop growth, canopy temperature and soil moisture extraction. Under acid soil conditions at Quili-chao, seed yields of supposedly drought tolerant genotypes were similar to those of the drought sensitive lines, and root growth of all four lines was restricted to less than 0.8 m. Drought avoidance through greater root growth and extraction of soil moisture appears to be an important drought tolerance mechanism in common beans, but its usefulness is limited where soil conditions restrict root growth Root Growth of Four Common Bean Cultivars in Relation to Drought Tolerance in Environments with Contrasting Soil Types | Request PDF. Available from: https://www.researchgate.net/publication/231907323_Root_Growth_of_Four_Common_Bean_Cultivars_in_Relation_to_Drought_Tolerance_in_Environments_with_Contrasting_Soil_Types [accessed Sep 13 2018].

Tipo de Elemento:	Artículo
Asunto:	S Agricultura > S Agriculture (General) S Agricultura > SD Forestry
Division:	Facultad de Ciencias Agrícolas > Programa de Ingeniería Agroforestal > Productividad
Depósito de Usuario:	Grupo Agroforestería y Recursos Naturales
Fecha Deposito:	14 Sep 2018 14:36
Ultima Modificación:	14 Sep 2018 14:36
URI:	http://sired.udenar.edu.co/id/eprint/4915

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