Register      Login
Crop and Pasture Science Crop and Pasture Science Society
Plant sciences, sustainable farming systems and food quality
RESEARCH ARTICLE

Kinetics of phosphate absorption by intact rice plants

NK Fageria

Australian Journal of Agricultural Research 25(3) 395 - 400
Published: 1974

Abstract

Phosphate absorption by intact rice plants was found to be mediated by two distinct mechanisms when studied over a range of phosphate concentrations from 0.16 to 161µM . A low concentration, high affinity (Km = 1.4 x 10-6M) mechanism becoming saturated at about 2.5 x 10-6M phosphate, and a low affinity (Km = 7 x 10-6M) mechanism operative at higher phosphate concentrations were observed. The role of both mechanisms in phosphate absorption by plants growing in the soil is discussed.

https://doi.org/10.1071/AR9740395

© CSIRO 1974

Committee on Publication Ethics


Export Citation Get Permission

View Dimensions