Patterns of Root Production in Tree Crops in Response to Environmental Variation

Fine root production and turnover data for a range of tree crops will be reviewed, as well as potential implications for water and nutrient acquisition. Seasonal patterns of fine root production varied by species and soil depth, showing that the commonly held perception that roots are predominantly produced in Spring and Fall is not a universal pattern across species. More detailed case studies will show the impacts of N fertilization rates on young pecan root growth and survival during establishment, as well the impacts of ongoing irrigation experiments on almond root traits and root production. Outcomes of these studies will be linked to potential management recommendations.