Articles
INVESTIGATIONS ON THE EFFECTS OF REVERSION DISEASE ON CROP AND GROWTH OF BLACK CURRANT
Article number
66_12
Pages
91 – 98
Language
Abstract
During a five-year-experiment the effects of reversion disease on the crop and growth of two varieties of black currant frequently cultivated in Germany, namely ‘Rosenthals Langtraubige Schwarze’ and ‘Silvergieters Schwarze’, were investigated.
After grafting them with a virulent strain of the causal agent, the disease spread rapidly over the grafted plants.
Already in the second vegetation period after the transmission the crop of the diseased bushes remained under the break-even-point.
Effects of reversion on the length of the main shoots were not observed, but there was a strong tendency towards apical branching at the diseased plants.
Of the two varieties examined in the experiment ‘Silvergieters Schwarze’ reacted especially sensible to the infection by reversion disease.
After grafting them with a virulent strain of the causal agent, the disease spread rapidly over the grafted plants.
Already in the second vegetation period after the transmission the crop of the diseased bushes remained under the break-even-point.
Effects of reversion on the length of the main shoots were not observed, but there was a strong tendency towards apical branching at the diseased plants.
Of the two varieties examined in the experiment ‘Silvergieters Schwarze’ reacted especially sensible to the infection by reversion disease.
Authors
H. Krczal
Keywords
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