ISHS Acta Horticulturae 352: VI International Symposium on Rubus and Ribes
DEVELOPMENTAL AND ENVIRONMENTAL INFLUENCES ON THE PHOTOSYNTHETIC BIOLOGY OF RED RASPBERRY (RUBUS IDAEUS L.) |
| Authors: | J. SCOTT CAMERON, S. F. KLAUER, C. CHEN |
| Keywords: | Assimilate demand, carbon dioxide assimilation (A), carbon dynamics, chlorophyll (chl), fourth derivative spectroscopy, leaf:fruit ratio, stress physiology |
| Abstract:
While still poorly understood, the fundamental biology of the red raspberry plant has been studied more intensively in recent years. Research in reproductive physiology has provided new insights into fruit development, yield efficiency and vegetative management. Photosynthetic biology has been studied and a model of the photosynthetic apparatus is being developed. Observed physiological limitations suggest new directions in genetic improvement and cultural management strategies. While specific biotic and abiotic stresses can greatly reduce yields, losses can also occur due to the cumulative influence of various stresses which manifest few, if any, visible symptoms. The red raspberry plant is capable of considerable compensation among its components of yield, but quantifying losses in crop productivity will require a better understanding of those systems being negatively impacted. Future research in physiology must provide a better understanding of: 1. The fundamental photosynthetic biology of the raspberry leaf and its response to environmental parameters; 2. The interrelationships among carbon assimilation and distribution, source/sink relationships and yield component interactions; 3. The impact of biotic and abiotic stress on photosynthetic biology and plant productivity; 4. The potential for genetic Improvement of characteristics directly or indirectly enhancing the photosynthetic potential and carbon dynamics of the raspberry plant. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
