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Limited nitrogen availability has cultivar-dependent effects on potato tuber yield and tuber quality traits

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Van Dingenen,  J.
Metabolism and Development, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Hanzalova,  K.
Metabolism and Development, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Salem,  M.A.
Experimental Systems Biology, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Abel,  Christin
Metabolism and Development, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Seibert,  T.
Metabolism and Development, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Giavalisco,  P.
Experimental Systems Biology, Department Willmitzer, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Wahl,  V.
Metabolism and Development, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

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Van Dingenen, J., Hanzalova, K., Salem, M., Abel, C., Seibert, T., Giavalisco, P., et al. (2019). Limited nitrogen availability has cultivar-dependent effects on potato tuber yield and tuber quality traits. Food Chemistry, 288, 170-177. doi:10.1016/j.foodchem.2019.02.113.


Cite as: http://hdl.handle.net/21.11116/0000-0003-2196-E
Abstract
An excess of nitrogen (N) is used in agriculture endangering the environment and food quality. One approach to circumvent this is to generate crops with a stable or even increased productivity under limited N. Here, we studied the effect of reduced N availability on potato (Solanum tuberosum) tuber yield and quality traits using five varieties: the wild Andigena and the commercial cultivars Désirée, Milva, Saturna and Alegria. Growth on limited N resulted in less tubers with a reduced weight except for Andigena. Tubers from low N-grown plants contained more starch, less sucrose and were delayed in sprouting. Some of the trait differences can be explained by changes in hormone levels between cultivars and N conditions. In general, Saturna and Alegria performed better under limited N making them excellent breeding candidates. Our results suggest that wild species more flexibly adapt to limited N, a trait lost in commercial potatoes.