Cold-resistant varieties 'Comet' and 'Amurskaya 41' were used as parental forms. They had been crossed with sensitive-to-low-temperature variety 'Gieso'. Germination analysis of parental components was carried out on plants taken at random, and germination of 50 seeds was established.
Sherepitko, V. V. and Sichkar, V. I.
"Research Notes : Reaction to low temperature of the F1 crosses and. their parental forms,"
Soybean Genetics Newsletter: Vol. 14
, Article 75.
Available at: https://lib.dr.iastate.edu/soybeangenetics/vol14/iss1/75