
%0 Journal Article
%A Osborne, L. D. 
%A Rengel, Z. 
%T Screening cereals for genotypic variation in efficiency of phosphorus uptake and utilisation
%J Australian Journal of Agricultural Research
%D 2002/02/20
%V 53
%N 3
%P 295-303
%K genotypic differences, germplasm, nutrient deficiency, rye, triticale, wheat.
%R https://doi.org/10.1071/AR01080
%U https://www.publish.csiro.au/paper/AR01080 
%X One hundred and six Australian cereal genotypes, including wheat, triticale, and rye, were screened for their ability to take up and utilise soluble phosphorus at different rates of P supply. Plants were screened in outdoor tanks irrigated at regular intervals with nutrient solution amended with 3 rates of P. Genotypes were ranked according to the following 3 criteria: shoot growth at deficient P supply, the relative shoot growth rate (dry weight at deficient P/dry weight at sufficient P), and phosphorus utilisation efficiency (amount of dry matter produced per unit of P accumulated in shoots corrected for seed P content). Considerable genotypic variation in growth and P utilisation efficiency was found in the cereal germplasm. Rye and triticale were generally more efficient in taking up and utilising P than wheat at low rates of P supply. Wheat genotypes Egret and Durati showed relatively high, and genotype Cadoux relatively low, P efficiency. 
