Studies on the mineral nutrition of sweet sorghum. II: uptake and redistribution of radiophosphate
DOI:
https://doi.org/10.1590/S0071-12761979000100012Abstract
This paper deals with the following aspects of the phosphatic nutrition of sweet sorghum: absorption of radiophosphate as influenced by time of uptake and external concentration; comparative foliar absorption of monoammonium and diammonium phosphate both in the presence and absence of urea; redistribution of previously absorbed and stored phosphate. Data obtained herewith allowed for the following conclusions to be drawn: (1) root absorption increased with time of contact, being higher in the case of excised when compared to roots in intact plants; (2) Michaelis and Menten kinetics are applicable to root uptake, the parameters being different for the two types of root material; (3) the two ammonium phosphates showed the same rate of uptake, which was not influenced by urea; (4) P deficient plants showed highes rates of uptake and translocation.Downloads
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Published
1979-01-01
Issue
Section
nd303572232
How to Cite
Malavolta, E., Joechn, A., Sansígolo, C., Martins, D., Costa, E., Guerrini, I., Ferreira, J., Pessenda, L., Trivelin, P., Omae, S., & Carvalho, S. (1979). Studies on the mineral nutrition of sweet sorghum. II: uptake and redistribution of radiophosphate . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 36, 203-230. https://doi.org/10.1590/S0071-12761979000100012