Peanut (Arachis hypogaea L.) Response to Imazethapyr as Affected by Timing of Application¹

W. James Grichar; P. R. Nester; D. C. Sestak; W. James Grichar; P. R. Nester; D. C. Sestak

doi:10.3146/i0095-3679-24-1-3

ARTICLES

Peanut (Arachis hypogaea L.) Response to Imazethapyr as Affected by Timing of Application¹

Authors: W. James Grichar , P. R. Nester , D. C. Sestak

Abstract

Field studies were conducted in 1994 and 1995 to evaluate the effect of imazethapyr on peanut growth and yield under weed-free conditions as influenced by timing of application. Imazethapyr applied preemergence (PRE) and 7, 21, 35, 49, and 63 d after planting (DAP) had no effect on peanut pod weight. In 1 of 2 yr, imazethapyr applied PRE, 21 DAP, or 35 DAP increased yield over the untreated check. In 1 of 2 yr, peanut grade was reduced with imazethapyr applied 49 DAP.

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Keywords: Groundnut, herbicides, peanut injury, preemergence, pod yield, postemergence, total sound mature kernels

How to Cite: Grichar, W. , Nester, P. & Sestak, D. (1997) “Peanut (Arachis hypogaea L.) Response to Imazethapyr as Affected by Timing of Application¹”, Peanut Science. 24(1). doi: https://doi.org/10.3146/i0095-3679-24-1-3

Author Notes

¹ This research was supported in part by grants from the Texas Peanut Producers Board.