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Efficient potassium (K) recycling and root carbon (C) metabolism improve K use efficiency in pear rootstock genotypes.

Plant physiology and biochemistry : PPB - 1 Mar 2023

Yang Han, Peng Lirun, Chen Liyan, Zhang Lijuan, Kan Liping, Shi Yujie, Mei Xinlan, Malladi Anish, Xu Yangchun, Dong Caixia

Abstract excerpt

To investigate K absorption and transport mechanisms by which pear rootstock genotypes respond to low-K stress, seedlings of a potassium-efficient pear rootstock, Pyrus ussuriensis, and a potassium-sensitive rootstock, Pyrus betulifolia, were supplied with different K concentrations in solution culture. Significant differences in the absorption rate, Vmax and Km between the genotypes indicate that P. ussuriensis...

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PMID: 36693285
DOI: 10.1016/j.plaphy.2023.01.024

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