Leaf age and light stress affect the ability to diagnose P status in field grown potatoes.

ABSTRACT: Phosphorus (P) deficiency is a global issue which can severely impact the yield of crops, including the P demanding and important food crop potato. Diagnosis of P status directly in the field can be used to adapt P fertilization strategies to the needs of the evolving crop during the growing season and is often estimated by analyzing P concentrations in leaf tissue. In this study, we investigate how diagnosis of P status in field grown potato plants is affected by leaf position and time of measurement in a randomized block experiment. The concentrations of many essential plant nutrients are highly dynamic, and large differences in nutrient concentrations were found in potato leaves depending on leaf age and time of sampling. During tuber initiation, P concentrations decreased in a steep gr

SUBMITTER: Tougaard SL 

PROVIDER: S-EPMC10157199 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature