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Virginia Market-Type Peanut (Arachis hypogaea) Cultivar Tolerance and Yield Response to Flumioxazin Preemergence

Published online by Cambridge University Press:  20 January 2017

John W. Wilcut*
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
Shawn D. Askew
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
William A. Bailey
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
Janet F. Spears
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
Thomas G. Isleib
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
*
Corresponding author's E-mail: john_wilcut@ncsu.edu.

Abstract

Field studies were conducted in 1996 and 1997 to evaluate response of eight peanut cultivars to flumioxazin applied preemergence (PRE) at 71 g ai/ha. Peanut cultivars evaluated include ‘NC 12C’, ‘NC 7’, ‘VAC 92R’, ‘NC-V 11’, ‘NC 10C’, ‘AT VC 1’, ‘NC 9’, and the experimental breeding line ‘N9001OE’. Visible injury 3 wk after planting in 1996 was 3% or less regardless of cultivar. In 1997, all cultivars were injured 15 to 28% with flumioxazin PRE, except VC 1, which was injured 45%. No visible injury was observed at 5 and 9 wk after planting. Flumioxazin did not influence the incidence of early leaf spot, late leaf spot, southern stem rot, cylindrocladium black rot, or tomato spotted wilt virus. Flumioxazin did not affect percentage of extra-large kernels, sound mature kernels, other kernels, and total yield.

Type
Research
Copyright
Copyright © Weed Science Society of America 

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