The soybean cyst nematode, Heterodera glycines, is of major economic importance and widely distributed throughout the world. The effect of H. glycines HG Type 0 on seed yield of susceptible and resistant soybean cultivars was assessed with and without nematicide application in two naturally infested fields in Iran. Soybean cvs BP (susceptible) and DPX (resistant) were arranged in a randomised complete block design and fenamiphos 10G was used in-furrow as a treatment. The population levels of eggs and second-stage juveniles of H. glycines were determined in soil samples collected at planting and harvesting time. Although no above-ground symptoms of nematode infection were visible, mean yield was 48% greater for the resistant cultivar compared with the susceptible cultivar. The yield of cv. BP increased by 16% in plots treated with fenamiphos compared with untreated plots. The resistant cultivar suppressed the reproduction rate of H. glycines. Seed composition, including protein and oil, did not show significant differences between resistant and susceptible cultivars. This is the first demonstration of the yield loss caused by the soybean cyst nematode in Iran.
Soybean cyst nematode population development and associated soybean yields of resistant and susceptible cultivars in Minnesota.
HeydariR.PourjamE.Tanha MaafiZ.SafaieN. (2008).
Evaluation of some common soybean cultivars to the major type of soybean cyst nematode of Iran, Heterodera glycines HG Type 0.
Iranian Journal of Plant Pathology44,
Effect of a low rate of aldicarb on soybean and associated pest interactions in fields infested with Heterodera glycines.
Crop loss assessment methods: current situation and needs. In:
An advanced treatise on Meloidogyne, Vol. II: methodology
Raleigh, NC, USA,
North Carolina State University Graphics, pp.
Effect of soybean cyst nematode (Heterodera glycines) on yield of resistant and susceptible soybean cultivars grown in Ohio.
Supplement to the Journal of Nematology29,
Soybean disease loss estimates for the top 10 soybean producing countries in 1998.
Canadian Journal of Plant Pathology23,