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Effects of Ryzup®(Ga3) on the Growth and Development of Early Season Cotton

J. Hansen, C. Black-Schaefer, W. Shafer, L. Larson, M. Adair


Abbott Laboratories registered RyzUp_ plant growth regulator in 1995 for use in early season cotton management. The active ingredient in RyzUp_, 4% gibberellic acid (GA3), has been known for many years to increase growth of plants by promoting cell expansion and division. Greenhouse studies showed that growth parameters such as leaf area and height, and physiological parameters such as photosynthesis, could be increased by 20 to 30% with a 2 gram GA3 per acre application. These same basic trends were also observed in field trials conducted in major cotton production areas.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 38 - 40
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998