Phosphorus‐use efficiency in wheat genotypes

Abstract

Phosphorus (P) deficiency is one of the principal yield‐limiting factors in Oxisols in various parts of the world. The objective of this study was to evaluate 15 wheat genotypes for P‐use efficiency. The genotypes were evaluated in an Oxisol at zero ("low”; P), 75 mg P kg^‐1 ("medium”; P), and 150 mg P kg^‐1 ("high”; P). Shoot weight and P uptake in shoot were the most sensitive plant parameters to P deficiency. Significant (Pto express their high yield potential in a wide range of P environment. Genotypes BR10, CPAC89128, and NL459 fall into this group. These are often referred to as widely adapted genotypes, in contrast with other genotypes which can be referred to as more specifically adapted genotypes.