Total root length of two potato cultivars, Kufri Jyoti and Kufri Chandramukhi grown in sand culture showed a high correlation with plant height, leaf area and shoot weight, The two cultivars varied significantly in their root dry weight, indicating that Kufri Chandramukhi has a finer root system and that Kufri Jyoti has a thicker root system. A linear model to predict root length, by measuring the three aerial parameters mentioned above, has been developed.
