ISHS Acta Horticulturae 424: II International Rose Symposium
SCREENING ROSES FOR RESISTANCE TO DIPLOCARPON ROSAE |
| Authors: | S. Walker, Z. Mandegaran, A.M. Roberts |
| Abstract:
Procedures have been developed for the in vitro production of infective conidia of Diplocarpon rosae. These have been used for testing resistance to blackspot disease of plants cultured in vitro and in vivo. Cell cultures and filtrates of various roses and other genera of the Rosaceae have differentially affected mycelial growth and sporulation. Some genotypes show evidence of constitutive production of diffusible substances that strongly suppress the growth of D. rosae. | |
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