Nematode densities associated with corn and sorghum cropping systems in Florida
1991
Gallaher, R.N. | McSorley, R. | Dickson, D.S.
Final densities (Pf) of Meloidogyne incognita nd Pratylenchus spp. increased more than ten-fold over initial densities (Pi) on corn (Zea mays) cultivars grown at three sites in north Florida. The Pf of M. incognita following sorghum (Sorghum bicolor) were much lower (P less than or equal to 0.001) than Pf following corn at the two sites in which sorghum was grown. At one of these sites, Pf of M. incognita was less than or equal to 5/100 cm3 soil, and at the other site Pf < Pi. At one site, population densities of Criconemella sphaerocephala increased to higher levels on sorghum than on corn, but Pf of Pratylenchus spp. were greater (P less than or equal to 0.01) on corn. Few differences in nematode densities were observed among the different corn cultivars tested.
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