Response of Peanut to PGR-IV Growth Regulator¹

Authors: Alan C. York , Roger B. Batts , A. Stanley Culpepper

  • Response of Peanut to PGR-IV Growth Regulator¹


    Response of Peanut to PGR-IV Growth Regulator¹

    Authors: , ,


Field experiments in North Carolina in 1994 and 1995 determined virginia-type peanut (Arachis hypogaea L.) response to PGR-IV, a commercial hormonal growth regulator consisting of 30 mg/L of gibberellic acid, 27 mg/L of indolebutyric acid, and a proprietary fermentation broth. Treatments included PGR-IV applied once at 438 mL/ha 21, 45, 60, or 75 DAE (days after peanut emergence) or twice at 219 mL/ha at 21 and 45 DAE or 45 and 60 DAE. PGR-IV had no effect on peanut main stem or cotyledonary lateral branch length, yield, maturity, percentage of fancy pods, extra large kernels, or total sound mature kernels, or net returns.

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Keywords: Arachis hypogaea L, gibberellic acid, indolebutyric acid, vegetative growth, yield, maturity, grade, Net returns

How to Cite:

York, A. & Batts, R. & Culpepper, A., (1996) “Response of Peanut to PGR-IV Growth Regulator¹”, Peanut Science 23(1), p.54-57. doi:



Published on
01 Jan 1996
Peer Reviewed

Author Notes

1 Use of trade names in this publication does not imply endorsement by the North Carolina Agric. Res. Serv, or the North Carolina Coop. Ext. Serv., nor criticism of similar ones not mentioned.