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Reference Report for IND81085282
Title:Damage and reproductive potentials of Pratylenchus brachyurus and Pratylenchus penetrans on soybean.
Authors:Schmitt, D.P., Barker, K.R.
Source:J. Nematol. 1981, 13(3):327-332
Abstract:Damage and reproductive potentials of P. brachyurus and P. penetrans on soybean, G. max 'Essex', 'Forrest' and 'Lee 68', were determined in microplot tests. 'Essex' was generally tolerant to P. brachyurus. Yield of 'Forrest' was suppressed linearly with increasing Pi [population (inoculum) density] in the sandy soil (r = -0.92) and loamy sand soil (r = -0.99). Low to moderate Pi in the sandy loam gave an increase in yields, compared to plants without nematodes. Yield was not affected by this nematode in muck. 'Lee 68' was very sensitive to P. penetrans in microplots. Yield vs. Pi was fitted by a quadratic model (r = 0.82) with yield decreasing sharply as Pi were increased. The reproduction of both species decreased with increases in Pi. 'Lee 68' was a good host for P. penetrans, whereas 'Essex' and 'Forrest' were fair to poor hosts for P. brachyurus.






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