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. 1977 Jan;135(2):143-7.
doi: 10.1007/BF00387163.

The biological activities of some new gibberellins (GAs) in six plant bioassays

V M Sponsel  1 , G V Hoad, L J Beeley
Affiliations

The biological activities of some new gibberellins (GAs) in six plant bioassays

V M Sponsel et al. Planta. 1977 Jan.

Abstract

The biological activities of GA40, GA43, GA46, GA47, GA51 and GA4 20,4-lactone were tested over a wide range of concentrations in six plant bioassays. GA4 20,4-lactone showed the highest activity. Of the two 2α-hydroxylated compounds GA47 showed moderately high activity, and GA40 was slightly active. The 2β-hydroxylated compunds GA43, GA46 and GA51 were virtually inactive.

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