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Studies on the translocation of 45Ca in the apple tree. I. Transport and distribution in relation to the time of uptake


, : Studies on the translocation of 45Ca in the apple tree. I. Transport and distribution in relation to the time of uptake. Gartenbauwissenschaft 38(2): 91-108

Cox's Orange Pippin apple trees on M.9 rootstocks grown in sand culture in pots outdoors were labelled with 45Ca via the roots at 3 different times, viz. immediately after dormancy until the end of flowering (23 March - 15 May), during early fruit development (2-16 June) or after shoot growth had ceased (16-30 August). In the first period 45Ca was found in the inflorescences several days before full flowering.

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