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Changes in Fruit Mineral Element Content of Top-Grafting Pear During Fruit Development
Changes in fruit mineral element contents of top-grafting pear were examined. The results showed that the contents of P, K, Fe and Zn in fruit peel and the contents of P, Ca ,Mg, Fe and Zn in fruit pulp of 'Shinseiki' pear declined during fruit development. The contents of N, P, K, Zn and Cu in fruit peel and the contents of N, Zn and Cu in fruit pulp of 'Shinkou' pear also declined during fruit development. Content of Fe in fruit peel and pulp of 'Shinkou' pear risen during the early stage fruit development,that showed different with 'Shinseiki' pear. Changes in Ca and Mn element contents in fruit peel and pulp of 'Shinkou' pear were consistent.P contents in the pulp were higher than in the peel of 'Shinseiki' and 'Shinkou' pears during fruit development, and K contents were also higher in the pulp than in the peel from 8 weeks after full bloom till harvest.
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