Time-series root images of four wheat cultivars under three salinity treatments across the whole growth period

This dataset contains raw root images collected throughout the whole growth period of four wheat cultivars grown under three salinity treatments, with four biological replicates for each treatment–cultivar combination. Root images were acquired at approximately 5-day intervals from the early growth stage to the end of the growth period. The dataset is intended to support the analysis of temporal root growth dynamics and varietal responses to salinity stress.