**AWARDS ISSUED PRIOR TO JANUARY 20, 2025, WERE FUNDED UNDER PREVIOUS ADMINISTRATIONS AND MAY NOT REFLECT THE PRIORITIES AND POLICIES OF THE CURRENT ADMINISTRATION.** DROUGHT, FROST, AND OTHER STRESSES CAN REDUCE PLANT PRODUCTIVITY AND CROP YIELDS. SUGAR MOVEMENT AROUND THE PLANT BODY TO AREAS OF GROWTH AND DEVELOPMENT DRIVES PRODUCTIVITY. THE TIMING OF STRESS, MAY AFFECTS CURRENT-SEASON PRODUCTIVITY. PLANT STRESSES STOP OR SLOW SUGAR MOVEMENT AND PLANT GROWTH. IT IS UNKNOWN IF STRESS TIMING CAN REDUCE PRODUCTIVITY IN FUTURE GROWING SEASONS. THIS PROJECT WILL DETERMINE IF THE TIMING OF DROUGHT OR OTHER STRESSES CAN REDUCE SUGAR MOVEMENT AND THUS PLANT PRODUCTIVITY. DOES A DROUGHT THAT OCCURS DURING SUMMER LIMIT A TREE FROM MAKING FRUITS OR FLOWERS THE FOLLOWING SPRING?WE WILL GROW TREES IN CONTROLLED GREENHOUSE CONDITIONS AND EXPOSE THEM TO DROUGHT AT DIFFERENT TIMES DURING THE YEAR. AFTER EACH STRESS TREATMENT, WE WILL MAKE MEASUREMENTS OF PLANT HEALTH, ABILITY TO MAKE SUGAR, AND ABILITY TO MOVE SUGAR. WE WILL CONTINUE MAKING MEASUREMENTS EACH SEASON FOR ONE YEAR. THE EXTRA YEAR OF MEASUREMENTS WILL ALLOW US TO DETERMINE WHEN THE TREES ARE ABLE TORECOVER FROM THE STRESS. THE BROAD IMPLICATIONS FROM THIS WORK WILL BE MORE RELIABLE CROP PRODUCTION. SPECIFICALLY, OUR DATA WILL ALLOW THOSE WHO GROW CROP TREES TO BETTER REACT TO DROUGHTS AND OTHER STRESSES. FURTHER, THIS WORK WILL ALLOW STAKEHOLDERS TO BETTER PREDICT YIELDS AFTER PLANT STRESS.