ARTICLES

Genotype Seeding Rate Interaction among TSWV-Resistant, Runner-Type Peanut Cultivars¹

Authors: W. D. Branch , J. A. Baldwin , A. K. Culbreath

  • Genotype  Seeding Rate Interaction among TSWV-Resistant, Runner-Type Peanut Cultivars¹

    ARTICLES

    Genotype Seeding Rate Interaction among TSWV-Resistant, Runner-Type Peanut Cultivars¹

    Authors: , ,

Abstract

Tomato spotted wilt virus (TSWV) resistant, runner-type peanut (Arachis hypogaea L.) cultivars are the most important defense to control spotted wilt disease in southeast U.S. peanut production. The objective of this 3-yr (199901) study was to evaluate six TSWV-resistant, runner-type cultivars (Southern Runner, Florida MDR 98, C-99R, ViruGard, Georgia Green, and Georgia-OIR) at three different seeding rates (3, 5, and 7 seed30.5 cm) in single conventional row patterns for possible genotype (GE) seeding rate (SR) interaction at the Univ. of Georgia, Coastal Plain Experiment Station. The combined split-plot analyses of variance resulted in highly significant (P 0.01) GE SR interaction, which indicates that not all six runner-type cultivars performed the same at each of these three seeding rates. A good example was the TSWV-resistant, runner-type peanut cultivar Georgia Green. It performed subpar at the below normal or lowest seeding rate; whereas at the highest seeding rate, Georgia Green and Georgia-OIR produced the highest pod yields and dollar value returns per hectare among all of these runner-type cultivars. TSWV disease incidence was also significantly lower for the TSWV-resistant Georgia Green cultivar at each of the two higher seeding rates compared to the lowest seeding rate.

Available as PDF only - Use Download Feature

Keywords: Arachis hypogaea L, Groundnut, tomato spotted wilt virus, disease incidence, pod yield, dollar value

How to Cite:

Branch, W. & Baldwin, J. & Culbreath, A., (2003) “Genotype Seeding Rate Interaction among TSWV-Resistant, Runner-Type Peanut Cultivars¹”, Peanut Science 30(2), p.108-111. doi: https://doi.org/10.3146/pnut.30.2.0009

5 Views

1 Downloads

Published on
01 Jul 2003
Peer Reviewed

Author Notes

1Contribution from the Univ. of Georgia, College of Agricultural and Environmental Sciences.