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Nutrient accumulation and distribution of wheat genotypes in response to waterlogging and nutrient supply

✍ Scribed by Bingru Huang; Jerry W. Johnson; D. Scott NeSmith; David C. Bridges

Publisher
Springer
Year
1995
Tongue
English
Weight
584 KB
Volume
173
Category
Article
ISSN
0032-079X

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✦ Synopsis

The effect of soil waterlogging and nutrient supply on plant nutrient accumulation and distribution was investigated for two genotypes of winter wheat (Triticum aestivum L.) differing in waterlogging resistance, 'Bayles' and 'Savannah'. Plants were grown in waterlogged or drained sand and fertilized with half-strength or full-strength Hoagland's solution.

Waterlogging reduced the concentrations of N, P, K, Mg, and Zn in leaves and stems and increased the concentrations of those elements in the root system. The effects were greater for waterlogging-sensitive Bayles than for waterlogging-resistant Savannah. Higher concentrations of Fe and Mn were found in waterlogged plants compared to the control plants for sensitive Bayles. Waterlogging increased the proportion of N and Zn in the root system and decreased that of K in stems for Bayles. The proportion of Fe increased in leaves and stems for Bayles and Savannah under waterlogged conditions, but to a greater extent for Bayles. Doubling the concentrations of all major and minor nutrient elements supplied to the waterlogged rooting medium improved plant nutrient status and enhanced plant dry matter production.

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