Effect of seed manganese content on the growth of wheat (triticum aestivum) under manganese deficiency |
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Authors: | N E Marcar Robin D Graham |
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Institution: | (1) Department of Agronomy, Waite Agricultural Research Institute, The University of Adelaide, 5064 Glen Osmond, South Australia, Australia;(2) Present address: Division of Forest Research, CSIRO, P.O. Box 4008, 2600 Canberra, ACT, Australia |
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Abstract: | Summary The importance of seed manganese (Mn) content for seedling growth of two wheat cultivars under soil Mn deficiency was demonstrated
in growth cabinet experiments. Seed was obtained from different field sites (giving a Mn content range of 0.1 to 6.4 μg Mn
seed−1), as well as from soaking seed in MnSO4 prior to sowing. Seed soaking greatly increased the seed Mn content, however, only about 15–20% of this additional Mn was
recovered in the seedlings after 26 days growth. In these experiments, the seed rather than the soil provided the major source
of plant Mn. Manganese critical deficiency levels (CDLs) were also obtained for leaves, shoots and roots. Increased grain
yields from seed soaking were also evident in the field. |
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Keywords: | Calcareous soil Critical deficiency level Manganese uptake Seed manganese Triticum aestivum Wheat |
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