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Absorption translocation and accumulation of phosphorus using labelled superphosphate (32P) in Arabica and Robusta coffee plants

by Gopal, N.H; Balasubramanian, A; Vasudeva, N.
Publisher: Ene 1977Subject(s): COFFEA ARABICA | COFFEA CANEPHORA | APLICACION AEREA | ABSORCION DE SUBSTANCIAS NUTRITIVAS | FOSFORO | MARCACION CON ISOTOPOS | TRANSLOCACION | SUPERFOSFATO | ROBUSTA | COFFEA ARABICA | COFFEA CANEPHORA | AERIAL APPLICATION | PHOSPHORUS | ISOTOPE LABELLING | SUPERPHOSPHATE | COFFEA ARABICA | COFFEA CANEPHORA | EPANDAGE AERIEN | PHOSPHORE | MARQUAGE ISOTOPIQUE | SUPERPHOSPHATE In: Indian Coffee (India) v. 41(1) p. 25-29Summary: Absoprtion, translocation and accumulation of phosphate supplies as labelled (32P) single superphosphate, were significantly more by foliar feeding than with soil application in 25 month old Coffea arabica L. cv. S.795 and Coffea canephora Pierre cv. S.274 plants in 48 hours after the application of the radiophosphate. Metabolism of P was greater in the root system of robusta than in arabica as indicated by more quantity of phosphate accumulation. Between the two coffe species, robusta absorbed more phosphate with both the types of phosphate application than arabica. The efficiencies of foliar and soil application of superphosphate, pH of spray solution and the possible reasons for differences in absorption capacities of phosphate by arabica and robusta are discussed
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++Dat. num. 18 ref. Sum. (En)

Absoprtion, translocation and accumulation of phosphate supplies as labelled (32P) single superphosphate, were significantly more by foliar feeding than with soil application in 25 month old Coffea arabica L. cv. S.795 and Coffea canephora Pierre cv. S.274 plants in 48 hours after the application of the radiophosphate. Metabolism of P was greater in the root system of robusta than in arabica as indicated by more quantity of phosphate accumulation. Between the two coffe species, robusta absorbed more phosphate with both the types of phosphate application than arabica. The efficiencies of foliar and soil application of superphosphate, pH of spray solution and the possible reasons for differences in absorption capacities of phosphate by arabica and robusta are discussed

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