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Effect of 2,4-D on Leafy Spurge (Euphorbia esula) Viable Seed Production

Published online by Cambridge University Press:  12 June 2017

Jamal S. Al-Henaid ,
Mark A. Ferrell  and
Stephen D. Miller
Jamal S. Al-Henaid
Affiliation:
Everglades Res. & Ext. Cent., Belle Glade, FL 33430 Dep. Plant Soil Insect Sci., Univ. Wyo., Laramie, WY 82071
Mark A. Ferrell
Affiliation:
Dep. Plant Soil Insect Sci., Univ. Wyo., Laramie, WY 82071
Stephen D. Miller
Affiliation:
Dep. Plant Soil Insect Sci., Univ. Wyo., Laramie, WY 82071
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Abstract

Leafy spurge viable seed production and germination were reduced by 2,4-D applied during flower development and seed formation, in the field. Viable seed production was reduced when 2,4-D was applied at all growth stages after the start of flower bud development. The number of viable seed from untreated plants was 173, while, the number of viable seed from plants treated 0, 7, 14, 21, 28, or 35 d after the start of flower bud development was <1, 4, 7, 31, 53, and 62; respectively. Leafy spurge seed germination was higher in gibberellic acid than in water for seed collected from untreated plants and from plants treated with 2,4-D 7, 14, and 21 d after bud initiation. This research shows that 2,4-D must be applied prior to flower bud development to prevent seed production.

Keywords

2,4-D (2,4-dichlorophenoxy)acetic acidgibberellic acid, 2,4a,7-trihydroxy-1-methyl-8-methylenegibb-3-ene-1,10-carboxylic acid 1→4-lactoneleafy spurge, Euphorbia esula L. # EPHESGibberellic acidgermination
Type
Research
Information
Weed Technology , Volume 7 , Issue 1 , March 1993 , pp. 76 - 78
Copyright
Copyright © 1993 by the Weed Science Society of America 

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References

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