Effect of Cultivar Selection on Soil Population of <i>Verticillium dahliae</i> and Wilt Development in Cotton

Fig. 2. Effect of cultivar rotation on Verticillium dahliae inoculum density in soil over time. Data were analyzed using Proc MIXED (v. 9.2, 2008, SAS Institute Inc.) using mixed model analysis. Linear model was significant (P < 0.01) for cultivar rotation RRS, RSS, SSS, and SSR, whereas quadratic regression was significant only for RRS rotation. R = Partially resistant (AFD 5065B2F / Advanced breeding line), S = Susceptible (Stoneville 4554B2RF). RRR, RRS, RSS, SSS, SSR, and SRR represent three year rotations where the first letter refers to the cultivar grown in 2008, the second letter to the cultivar grown in 2009, and the third letter to the cultivar grown in 2010. LSD0.05 = 0.26.



Image from Plant Health Progress article:
Effect of Cultivar Selection on Soil Population of Verticillium dahliae and Wilt Development in Cotton