Identify superior parent trees in a 10-year-old Black walnut Juglans nigra progeny trial, and study of how phenological events are inherited in Common Walnut Juglans regia.

Project 2- How phenology is inherited in Persian walnut (Juglans regia)
leafing date, peak pollen shed date, peak pistillate bloom date, harvesting date
The data will be analyzed based on Payne and Chandler cultivar’s data.