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| Titel: |
Differential tolerance of bush bean cultivars to excess manganese in solution and sand culture |
| Auteur: |
Kohno, Y. Foy, C. D. |
| Verschenen in: |
Journal of plant nutrition |
| Paginering: | Jaargang 6 (1983) nr. 10 pagina's 877-893 |
| Jaar: |
1983-10 |
| Inhoud: |
Nineteen bush bean cultivars were screened for tolerance to excess Mn in nutrient solution and sand culture experiments. Seven-day-old seedlings were treated with full strength Hoagland No. 2 nutrient solution containing different Mn concentrations for 12 days in the greenhouse. Cultivars showing the greatest sensitivity to Mn toxicity were 'Wonder Crop 1' and 'Wonder Crop 2'; those showing the greatest tolerance were 'Green Lord', 'Red Kidney' and 'Edogawa Black Seeded'. Leaf Mn concentration of plants grown in sand culture was higher than that for plants grown in solution culture. The lowest leaf Mn concentration at which Mn toxicity symptoms developed, was higher in tolerant than in sensitive cultivars. The Fe/Mn ratio in the leaves at which Mn toxicity symptoms developed, was higher in the sensitive cultivars than in the tolerant ones. We concluded that Mn tolerance in certain bush bean cultivars is due to a greater ability to tolerate a high level of Mn accumulation in the leaves. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 7 gevonden artikelen
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