Abstract
Botrytis [B. cinerea] flower rot was reduced, flower quality improved, and vase life lengthened by holding cut flowers of the rose cultivars Samantha, Royal Red, Pauls Pink, and Bettina in 10, 20, of 30% CO2 at 10-12 C for 6 days. The results suggest a greater control of Botrytis rot than would result from a simple inhibition of the pathogen by CO2.