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Meloidogyne incognita Resistance in Soybean under Midwest Conditions
Author(s) -
Kruger Greg R.,
Xing Lijuan,
LeRoy Allen R.,
Westphal Andreas
Publication year - 2008
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci2007.04.0196
Subject(s) - terra incognita , meloidogyne incognita , biology , loam , heterodera , agronomy , soybean cyst nematode , cultivar , horticulture , nematode , soil water , ecology
Soybean cultivars of maturity groups II to IV were tested in the greenhouse for resistance to Meloidogyne incognita (Kofoid and White) Chitwood. Selected cultivars were tested in a field of sandy loam soil naturally infested with M. incognita and Heterodera glycines Ichinohe (2004) or in a silt loam soil artificially infested with M. incognita (2005). In 2004, H444NRR was resistant to M. incognita , but not to H. glycines ; LS94‐3207 and LNX97164‐35‐5 were resistant to both nematodes; Gateway 427, H444NRR, LNX97164‐35‐5, and SB4399CT were moderately resistant to M. incognita in greenhouse tests; HF9665‐2‐15 was resistant to M. incognita but highly susceptible to H. glycines In 2005, LS94‐3207, H444NRR, LNX97164‐35‐5, and Manokin were resistant to M. incognita In microplots with two sandy loam soils, HF9665‐2‐15 exhibited tolerance to increasing inoculum levels of M. incognita High‐yielding soybean cultivars in maturity groups II to IV with resistance and tolerance to M. incognita were identified. Under field conditions, resistance to the more widespread nematode H. glycines , combined with resistance to M. incognita , is highly desirable to reduce the risk of yield reduction and to improve cropping sequences that include soybean.