Effects of gibberellin and ethrel treatment on the root growth of tobacco seedlings
1981
Bae, G.K. (Chungbuk National Univ., Cheongju (Korea R.). Agricultural Coll., Tobacco Research Inst.)
This study was conducted to study the effects of gibberellin and ethrel treatment on the root growth of Hicks tobacco seedlings. The number of secondary root emerged in 15 days after gibberellin treatment decreased in the gibberellin 50, 100 and 200 ppm plots, and the higher gibberellin content was, the greater the decrease was. Elongation of secondary root was effected by gibberellin treatment with the same tendency as the number of secondary roots. The number of secondary root decreased also in 500 dilution of ethrel plot, but increased slightly in 2000-4000 dilution of ethrel plots. Elongation of secondary root was inhibited markedly in each ethrel treatment plot, and the higher ethrel content was, the more elongation of the root inhibited extremely
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