Abstract
The physiological basis of variation in yield due to iron toxicity in rice genotypes at acid soils of north eastern India is unclear. Rice genotypes Mahsuri, Pankaj, IET 6666, TTB 101–14, Biraj and Khorma were transplanted in sand in a green house for two seasons with three levels of iron in nutrient solutions. Leaf yellowing was observed in plants grown at higher iron level. Pankaj and TTB 101–14 were the less affected varieties. These two varieties maintained higher chlorophyll, total soluble protein and nitrate reductase activity in leaves at added iron. P, K, Mn and Zn decreased significantly in the shoot at harvest. Pankaj and TTB 101–14 showed higher P, K, and Zn in the tissue. Pankaj showed lowest Fe accumulation and these two varieties gave higher grain yield with a higher percentage of filled grain.
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© 1997 Kluwer Academic Publishers
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Baruah, K.K., Nath, B.C. (1997). Ion uptake, metabolism and yield of rice (Oryza sativa L.) at excess iron in the growth medium. In: Ando, T., Fujita, K., Mae, T., Matsumoto, H., Mori, S., Sekiya, J. (eds) Plant Nutrition for Sustainable Food Production and Environment. Developments in Plant and Soil Sciences, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0047-9_120
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DOI: https://doi.org/10.1007/978-94-009-0047-9_120
Publisher Name: Springer, Dordrecht
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