Phosphorus uptake mechanisms associated with phosphorus application levels in two cotton cultivars

Poor phosphorus utilization is a common limitation of sustainable cotton production. Even so, the intrinsic potential for efficient acquisition roots remains unclear. In this study, we aimed to explore if in affected by interactions that could possibly be associated with root morphology and gene expression, between genotype application rates. A pot experiment was conducted seven rates: 0, 12.5, 25, 50, 75, 150, 300 mg P kg −1 . The agronomic characters, morphology, expression PHT1 varieties different efficiencies were measured. According results, efficiency cultivar XLZ19 higher than XLZ13 uptake because upregulation GhPTs increased total length proportion fine roots. Olsen-P levels soil ranged from 20 30 at seedling stage 15 25 flowering stage, suggesting better growth supply. conversion fertilizers decreased when rate exceeded 50–75 acquisition–efficient phenotype owes its high morphological changes Finally, these crops are highly acquisition, agricultural practices production may consume less fertilizers.