ISHS Acta Horticulturae 44: IX International Symposium on Fruit Tree Virus Diseases
GROWTH, YIELD, AND FRUIT QUALITY OF VIRUS-INFECTED AND VIRUS-FREE GOLDEN DELICIOUS APPLE TREES |
| Authors: | C.A.R. Meijneke, H.J. van Oosten, H. Peerboom |
| Abstract:
Several sources of 'Golden Delicious' with a different virus status were compared with respect to pomological properties. Some of these sources were free from viruses, others were infected with the so-called latent apple viruses and some with rubbery wood as well. The virus-free sources showed the strongest growth in the first years, but this resulted mainly in a larger number of laterals. The first crop was produced by all sources in the second year after planting, the largest yield occurring in the virus-free group. After four years of production the virus-free sources had the highest yield per unit of growth (kg/cm stem circumference), and also produced the smoothest fruits. Two of these virus-free sources usually produced smoother fruits than the others. This may be an example of genetic variation within the variety 'Golden Delicious'. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
