An examination of zinc uptake patterns by cultivars of sorghum and maize : Differences amongst hybrids and their parents

Ramani, Saradha; Kannan, S.

doi:10.1080/01904168509363418

Cited by 15 publications

(8 citation statements)

References 10 publications

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“…Aerobic rice cultivars developed by crossing lowland with upland varieties, exhibit significant genotypic variation in tolerance to low soil Zn (Gao et al 2005), as has been reported for lowland rice Chen et al 2009) and for other crop species including maize (Ramani and Kannan 1985), wheat ), common bean (Hacisalihoglu et al 2004), and barley (Genc et al 2004). This genotypic variation could be exploited in breeding programs to produce genotypes which are adapted to low Zn soils.…”

Section: Tolerance To Low Soil Zn Concentrations In Aerobic Ricementioning

confidence: 60%

Improving zinc bioavailability in transition from flooded to aerobic rice. A review

Gao

Hoffland

Stomph

et al. 2011

Agron. Sustain. Dev.

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Section: Tolerance To Low Soil Zn Concentrations In Aerobic Ricementioning

confidence: 60%

Improving zinc bioavailability in transition from flooded to aerobic rice. A review

Gao

Hoffland

Stomph

et al. 2011

Agron. Sustain. Dev.

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“…Differences among plant genotypes for the absorption, translocation, accumulation, and utilization of Zn have been reported for different plant species (Brown et al, 1972;Brown and Jones, 1977;Mahadevappa et al, 1981;Clark, 1983;Ramani and Kannan, 1985). Halim et al (1968) reported differences among lines and crosses for phosphorus (P) and Zn accumulations in the leaf tissue, both in the growth chambers and the field.…”

Section: Introductionmentioning

confidence: 94%

Mode of inheritance of zinc accumulation in maize

El-Bendary

El‐Fouly

Rakha

et al. 1993

Journal of Plant Nutrition

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The present study was undertaken to investigate the genetic nature of zinc (Zn) accumulation in the ear-leaves of maize (Zea mays L.) plants.Fourteen inbred lines were evaluated. Out of which, five inbreds were chosen, two high Zn accumulators (Rg-5 and Rd-2), two low Zn accumulators (Rg-8 and G-307) and a moderate one (K-64). These five parental inbreds were utilized to obtain all possible ten F1 hybrids (in one direction), 10 F2, 10 Bl, and 10 B2. All genotypes were planted and Zn was estimated at 50% tasseling stage. Zinc accumulation in the present genotypes was found to be genetically controlled and affected by additive genes. Significant values were obtained for the General Combining Abilities (GCA) but not for the Specific Combining Abilities (SCA) and the high Zn accumulating parents were the best general combiners. Four genes were found to be the minimum segregating factors in the (high x low) crosses for Zn accumulation.

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“…Cakmak et al (1994) showed that a Zn-inefficient durum wheat cultivar exhibited Zn-deficiency symptoms earlier and more intensely than a Zn-efficient bread wheat cultivar even though the Zn tissue concentrations were similar in both lines, suggesting differential utilization of Zn in the two cultivars. Rates of Zn translocation to shoots were shown to vary among sorghum cultivars, although correlations with Zn efficiency were not established (Ramani and Kannan, 1985). Root uptake kinetics have been reported to vary between rice cultivars having different Zn requirements, with high-Zn-requiring cultivars exhibiting consistently higher root uptake rates (Bowen, 1986).…”

mentioning

confidence: 99%

Characterization of Zinc Uptake, Binding, and Translocation in Intact Seedlings of Bread and Durum Wheat Cultivars

et al. 1998

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Durum wheat (Triticum turgidum L. var durum) cultivars exhibit lower Zn efficiency than comparable bread wheat (Triticum aestivum L.) cultivars. To understand the physiological mechanism(s) that confers Zn efficiency, this study used 65 Zn to investigate ionic Zn 2؉ root uptake, binding, and translocation to shoots in seedlings of bread and durum wheat cultivars. Time-dependent Zn 2؉ accumulation during 90 min was greater in roots of the bread wheat cultivar. Zn 2؉ cell wall binding was not different in the two cultivars. In each cultivar, concentration-dependent Zn 2؉ influx was characterized by a smooth, saturating curve, suggesting a carriermediated uptake system. At very low solution Zn 2؉ activities, Zn 2؉ uptake rates were higher in the bread wheat cultivar. As a result, the Michaelis constant for Zn 2؉ uptake was lower in the bread wheat cultivar (2.3 M) than in the durum wheat cultivar (3.9 M). Low temperature decreased the rate of Zn 2؉ influx, suggesting that metabolism plays a role in Zn 2؉ uptake. Ca inhibited Zn 2؉ uptake equally in both cultivars. Translocation of Zn to shoots was greater in the bread wheat cultivar, reflecting the higher root uptake rates. The study suggests that lower root Zn 2؉ uptake rates may contribute to reduced Zn efficiency in durum wheat varieties under Zn-limiting conditions.

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An examination of zinc uptake patterns by cultivars of sorghum and maize : Differences amongst hybrids and their parents

Cited by 15 publications

References 10 publications

Improving zinc bioavailability in transition from flooded to aerobic rice. A review

Improving zinc bioavailability in transition from flooded to aerobic rice. A review

Mode of inheritance of zinc accumulation in maize

Characterization of Zinc Uptake, Binding, and Translocation in Intact Seedlings of Bread and Durum Wheat Cultivars

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