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Resistance to a Necrotic Strain of Soybean Mosaic Virus in Soybean 1
Author(s) -
Kwon Shin Han,
Oh Jeung Haing
Publication year - 1980
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/cropsci1980.0011183x002000030032x
Subject(s) - soybean mosaic virus , biology , cultivar , germplasm , strain (injury) , horticulture , potyvirus , plant virus , mosaic virus , resistance (ecology) , virus , botany , veterinary medicine , agronomy , virology , medicine , anatomy
Eighty‐nine entries from soybean [ Glyclne max (L.) Merr.] germplasm collection and 47 cultivars were evaluated for resistance to necrotic infection by a strain of soybean mosaic virus (SMV‐N) in the field. Necrotic symptoms developed on 18 of the 136 entries with severity ranging from 4 to 86%. Many of the soybean cultivars evaluated were susceptible. Five resistant lines or cultivars previously identified as resistant to SMV‐N in field test, ‘KEX‐2,’ ‘Kumgangdaerip,’ ‘# 31926,’ ‘KAS 390‐10,’ and ‘KAS 150‐5,’ were crossed with either susceptible cultlvars ‘Kwangkyo’ or ‘Tachisuzunari’ to study the inheritance of resistance. All the F 2 progenies of these crosses segregated in a 3:1 ratio of susceptible to resistant plants, indicating that resistance was conferred by a single recessive gene.