Year 2022, Volume 68 Issue 4 (15.12.2022)

Year : 2022
Volume : 68
Issue : 4 (15.12.2022)
   
Authors : Lidiya MISHCHENKO, Alina DUNICH, Ivan MISHCHENKO, Anna DASHCHENKO, Klaudiya KANDAUROVA
Title : SEED-BORNE AND SEED-TRANSMITTED VIRAL DISEASES AND THEIR EFFECT ON YIELD OF DIFFERENT SOYBEAN GENOTYPES
Abstract : In 21st century soybean is a strategic legume for world agriculture. The key factor in increasing soybean production is the average yield growth, which in 2018 and 2021 in Ukraine was 3 t/ha as in the EU. From 2007 to 2017 the soybean yield in Ukraine was 2 t/ha; from 1997 to 2006 it was only 1 t/ha. Unlike, in the EU since 1999 the yield was 3 t/ha, and only in 2003, 2007 and 2012 it was 2 t/ha. For Ukraine not the least role in this situation is played by the reduction of quality of soybean sowing material due to seed infections. It is known that the quality of soybean seeds is significantly deteriorating due to infection by soybean mosaic virus (SMV), which circulates in all soybean growing regions worldwide. The aim of the study was to investigate SMV seed infection in sowing material and its effect on the yield of different soybean genotypes. DAS-ELISA showed SMV presence in a small seeds fraction of several soybean genotypes in both seedlings (embryos and cotyledons) and plants grown from this seeds. The weight of virus-infected seeds was 137 mg compared to healthy (204 mg). It was found that the percentage of seed-transmitted SMV infection is from 2 to 10% in some of investigated genotypes. It has been proven that seed spotting does not always indicate the presence of virus. Phylogenetic analysis of the SMV CP gene fragment was performed. Percent of nucleotide and amino acid sequence identity of Ukrainian SMV isolate with isolates from other countries was established.
For citation : Mishchenko, L., Dunich, A., Mishchenko, I., Dashchenko, A., Kandaurova, K. (2022). Seed-borne and seed-transmitted viral diseases and their effect on yield of different soybean genotypes. Agriculture and Forestry, 68 (4): 165-175. doi:10.17707/AgricultForest.68.4.13
Keywords : soybean, genotypes, soybean mosaic virus, seed infection
   
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