ECOLOGICAL AND THERAPEUTICAL STUDIES ON THE DWARF DISEASE OF RICE PLANTS (5) EFFECT OF GIBBERELLIN ON THE GROWTH AND YIELD OF DWARF DISEASED AND HEALTHY RICE PLANTS
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Healthy rice plants and those infected with stunt virus were sprayed with an aqueous gibberellin.<BR>The growth rate of plants was increased by 5 time's application of 10-200 ppm of gibberellin at 9-10 day's intervals, but ripened grain weights per ear were reduced. The spray was done from 12 days after planting to about 20 days before heading time.<BR>Plants treated with 200 ppm of gibberellin on the maximum tillering stage were greater in heights and weights of ripened grain per ear than the untreated plants.
- 九州病害虫研究会の論文
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