Articles
GROWTH, YIELD, AND FRUIT QUALITY OF VIRUS-INFECTED AND VIRUS-FREE GOLDEN DELICIOUS APPLE TREES
Article number
44_33
Pages
209 – 212
Language
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’.
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’.
Authors
C.A.R. Meijneke, H.J. van Oosten, H. Peerboom
Keywords
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