Articles
VERY SIMILAR EFFECTS OF A MIXTURE OF GA3 AND BA (6-BENZYLAMINOPURINE) AND OF GA4+7 AND BA ON BRANCHING OF SOME APPLE CULTIVARS IN NURSERY
Article number
329_4
Pages
35 – 42
Language
Abstract
Results show that cv.
Cortland and cv.
Gloster develop considerably fewer feathers than cv.
Jonagold and cv.
Melrose by nature, in most cases trees on M 26 or MM 106 branched better than on M 9. In all three nurseries pinching or spraying with growth substances before the end of June gave better results than at the beginning of July.
The best effect of a mixture of GA3 and BA and GA4+7 and BA at a concentration of 500 mg · l-1 on branching of cv.
Cortland trees was obtained in 1988, when the number of lateral shoots on M 26 was 4.2 and 4.8, on MM 106 -2.9 and 3.2 respectively, in comparison with 0 on control trees.
In the case of cv.
Gloster, in 1990 trees on M 26 treated with GA3 and BA produced 6.9 and on M 9 – 4.7 feathers, and after the application of GA4+7 and BA – 7.5 and 4.9 respectively and control trees 1.0 and 0.5 feathers.
The influence of a mixture of GA3 and BA on branching of cv.
Jonagold and cv.
Melrose trees grafted on M 26 or M 9 was similar (9.7–10.3 and 5.4–6.4) to that of a mixture of GA4+7 and BA (10.7–13.5 and 8.4–7.2) compared with 2.9–2.6 and 1.2–0.6 in control.
Cortland and cv.
Gloster develop considerably fewer feathers than cv.
Jonagold and cv.
Melrose by nature, in most cases trees on M 26 or MM 106 branched better than on M 9. In all three nurseries pinching or spraying with growth substances before the end of June gave better results than at the beginning of July.
The best effect of a mixture of GA3 and BA and GA4+7 and BA at a concentration of 500 mg · l-1 on branching of cv.
Cortland trees was obtained in 1988, when the number of lateral shoots on M 26 was 4.2 and 4.8, on MM 106 -2.9 and 3.2 respectively, in comparison with 0 on control trees.
In the case of cv.
Gloster, in 1990 trees on M 26 treated with GA3 and BA produced 6.9 and on M 9 – 4.7 feathers, and after the application of GA4+7 and BA – 7.5 and 4.9 respectively and control trees 1.0 and 0.5 feathers.
The influence of a mixture of GA3 and BA on branching of cv.
Jonagold and cv.
Melrose trees grafted on M 26 or M 9 was similar (9.7–10.3 and 5.4–6.4) to that of a mixture of GA4+7 and BA (10.7–13.5 and 8.4–7.2) compared with 2.9–2.6 and 1.2–0.6 in control.
Authors
Fr. Jaumien, B. Czarnecki, W. Poniedzialek, T. Mitrut
Keywords
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