FACTORS AFFECTING THE PRODUCTION OF LOCAL LESIONS BY PLANT VIRUSES |
| |
| Authors: | R E F MATTHEWS |
| |
| Institution: | Plant Diseases Division, Department of Scientific and Industrial Research, Auckland, New Zealand |
| |
| Abstract: | Under uncontrolled glasshouse conditions the number of local lesions produced by a tobacco necrosis virus in beans depended on time of day at which plants were inoculated. Inoculations in the afternoon produced most lesions and inoculations near the end of the night produced least. Tobacco mosaic virus in Nicotiana glutinosa , and lucerne mosaic and turnip mosaic viruses in tobacco showed similar but smaller effects. The variations could affect the results of quantitative experiments with local-lesion counts. |
| |
| Keywords: | |
|
|
