Resistance to the Reniform Nematode in Selected Soybean Cultivars and Germplasm Lines
Abstract
Reproduction indices from multiple tests were conducted to show the suitability of several soybean cultivars and germplasm lines as hosts of the reniform nematode Rotylenchulus reniformis. Sixteen soybean germplasm lines of 45 reported as resistant to soybean cyst nematode were also resistant to reinform nematode. Cultivars Peking and Pickett, and PI 90763, used as differentials in the standardized soybean cyst nematode race determination test, were resistant to reniform nematode. The differential PI 88788 and the soybean cyst nematode susceptible test standard cv. Lee were susceptible. The 16 soybean cultivars most commonly grown in Arkansas in 1992 were susceptible, whereas cv. Cordell, with PI 90763 in its parentage, and cv. Hartwig, with PI 437654 in its parentage, were resistant. Key words: breeding, germplasm, Glycines max, reniform nematode, reproductive index, resistance, Rotylenchulus reniformis, soybean, susceptibility.Downloads
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