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dc.contributorAli, Rawshanen_US
dc.contributorMalhotra, Rajinderen_US
dc.contributorJahoor, Ahmeden_US
dc.contributorRahman, M.en_US
dc.creatorGahoonia, Taraen_US
dc.identifier.citationTara Gahoonia, Rawshan Ali, Rajinder Malhotra, Ahmed Jahoor, M. Rahman. (6/6/2007). Variation in root morphological and physiological traits and nutrient uptake of chickpea genotypes. Journal of Plant Nutrition, 30 (6), pp. 829-841.en_US
dc.description.abstractPlant nutrients such as potassium (K), phosphorus (P), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu) mostly remain fixed in soils and their bio-availability to plant roots is diffusion-limited. Hence, superior root traits, that can enhance their dissolution and capture from the soils, can play a central role in its productivity. Root morphological (root length and root hairs) and physiological traits (root exudation of protons and phosphatase enzymes) of ten selected varieties/breeding lines of chickpea (Bari-chhola3, Bari-chhola-4, Bari-chhola-5, Bari-chhola-6, Bari-chhola-7, Bari-chhola-8, BGME7, ICCV-98926, ICCV-94924, and ICCV-98916) were studied and related them to the uptake of the nutrients in a pot experiment. There were significant (P < 0.05) genotypic differences in root length (RL) and root hair length (RHL). The RL ranged between 70 m plant(-1) and 140 m plant(-1). The variation in RHL was significant (P < 0.05) and it ranged between 0.58 +/- 0.09 mm (Bari-chhola-5) and 0.26 +/- 0.09 mm. The root hair density (RHD, number mm(-1) root) varied between 13 2 and 21 13 among the genotypes. The presence of root hairs increased the effective root surface area (e.g., Bari-chhola-5) up to twelve times. The genotypes differed in their ability to acidify the rooting media in laboratory agar studies, with Bari-chhola-5 inducing most acidification followed by Bari-chhola-3. The ability of Bari-chhola-5 to acidify the rhizosphere was also confirmed by embedding in situ roots in the field in an agar-agar solution containing pH indicator dye Bromocresol purple.en_US
dc.publisherTaylor and Francisen_US
dc.sourceJournal of Plant Nutrition;30,(2007) Pagination 829-841en_US
dc.subjectfood legumesen_US
dc.subjectroot systemen_US
dc.titleVariation in root morphological and physiological traits and nutrient uptake of chickpea genotypesen_US
dc.typeJournal Articleen_US
cg.subject.agrovocabiotic stressen_US
cg.subject.agrovocroot exudatesen_US
cg.subject.agrovocrhizosphere phen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerBangladesh Agricultural Research Institute - BARI, Bangladeshen_US
cg.contributor.centerRoyal Veterinary and Agricultural University** - KVLen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalJournal of Plant Nutritionen_US

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