Artificial cold treatment,gibberellin application and flowering response of kohlrabi (Brassica oleracea L. var. gongylodes L.) |
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| Authors: | NPA Van Marrewijk |
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| Institution: | Institute for Horticultural Plant Breeding (I.V.T.), Wageningen The Netherlands |
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| Abstract: | Juvenility, cold requirement and the effect of GA3-application on flowering have been studied for some cultivars. If present, the juvenile phase was very short. Cold treatment for 8–12 weeks at 4 °C followed by 2 weeks at 10 °C gave flowering in all cultivars. Gibberellin sprays (250 or 500 p.p.m., 3 times) after an incomplete cold treatment promoted bolting and flowering even in the slow-bolting ‘Trero’, having the highest cold requirement. |
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