During the last two decades, environmental conditions have changed in the southern region resulting in warmer springs, summers and falls and fewer chill hours for plants during winter months. The result has been additional levels of stress for plants near the limits of their natural ranges and increased optimum conditions for diseases caused by pathogens that thrive in warm, humid conditions. Other changes in the environment such as the use of monoculture of rose genotypes in numerous, dense plantings have negatively impacted the future of roses due to a rose rosette disease which spreads rapidly under these conditions.The goals of this project are to develop germplasm collections of flowering dogwood that will be resistant to powdery mildew and environmental conditions (heat and lack of chill hours) that limits its ability to thrive in the deep-south. Experiments will be conducted to determine how the reduced impact of rose rosette can be achieved and the results from these experiments will be used to prepare a best management plan for used by different levels of stakeholders (home owners, nursery professionals, plant propagators, etc.). Lists of resistant cultivars of hydrangea and redbud will be generated for used by extension personnel to advise homeowners, landscapes, and nursery professionals and for plant breeders to use to incorporate disease resistance into new plant introductions.
|Effective start/end date||7/1/10 → 7/31/21|
- National Science Foundation: $171,750.00