Potential Loss in Soybean Yield Due to Root-Knot Nematode, Meloidogyne Arenaria in Sandy Soil
Journal Title: Egyptian Journal of Agronematology - Year 2018, Vol 17, Issue 1
Abstract
During 2015 summer season, relationship between the root-knot nematode damage (root galling) and growth and yield of soybean was studied in a field of sandy soil naturally infected with Meloidogyne arenaria for showing the effect of nematode infection on soybean yield. At soybean harvest, about 100 plants were randomly selected for assaying their root galling (damage) and yield. Top shoot weight and seed yield were negatively correlated with nematode damage with highly correlation coefficient (r) – 0.97 in case of shoot weight and-0.96 in case of seed yield. Observed loss in the top shoot weight was 36.47% and was 44.7% in seed yield at severely damage (GI-5). While the expected loss was 38.7% and 46.5% for shoot and seed yield, respectively.
Authors and Affiliations
A. Korayem, M. Mohamed
Keywords
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