Abstract
A solution culture study was planned to evaluate genetic variations among ten advance wheat genotypes. Wheat genotypes differed significantly (P< 0.05) in shoot and root dry matter production, root: shoot ratio, P uptake and shoot P utilization efficiency. Shoot P uptake was strongly correlated (R 2 = 0.85, R 2 = 0. 87) with shoot and root dry matter production. Shoot dry yield plant-1 varied 1.00 to 2.77 (g) at 25μM (deficient) while 1.20 to 3.27 (g) at 250 μM (adequate) P levels, respectively. Genotype NRL-1120 produced highest shoot dry matter (SDM) at deficient P level while genotype Yecora produced the highest SDM at adequate P level. Unlike SDM, there was 13% reduction in root dry matter (RDM) with the increase in P levels from 25 to 250 μM in the growth medium. More or less all the wheat genotypes produced similar RDM at adequate &deficient P levels. Among ten wheat genotypes NRL-1105, NRL-1120 and Yecora are the P-efficient wheat genotypes while NRL-1101, NRL-1129 and WL-711 are the P- inefficient wheat genotypes.