Genotypic variation in root systems of chickpea (Cicer arietinum L.) across environments

Ali, M.Y. and Johansen, C. and Krishnamurthy, L. and Hamid, A. (2005) Genotypic variation in root systems of chickpea (Cicer arietinum L.) across environments. Journal of Agronomy and Crop Science, 191 (6). pp. 464-472.

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Root systems of various chickpea genotypes were studied over time and in diverse environments, – varying in soil bulk density, phosphorus (P) levels and moisture regimes. In a pot study comparing a range of chickpea genotypes, ICC 4958 and ICCV 94916-4 produced higher root length density (RLD) and root dry weight (RDW), which were better expressed under P stress conditions. In two field experiments in soils of intermediate and high soil bulk densities, ICC 4958 also had greater RLD and RDW, particularly under soil moisture stress conditions. The expression of greater rooting ability of ICC 4958 under a wide range of environmental conditions confirms its suitability as a parent for genetically enhancing drought resistance and P acquisition ability. The superiority of ICC 4958 over other genotypes was for root proliferation expressed through RLD. Thus, the variation in RLD can be the most relevant root trait that reflects chickpea’s potential for soil moisture or P acquisition.

Item Type: Article
Author Affiliation: On-Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh
Subjects: Crop Improvement > Genetics/Genomics
Divisions: Chickpea
Depositing User: Sandhya Gir
Date Deposited: 06 Feb 2011 17:32
Last Modified: 06 Feb 2011 17:32

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