Dyakonov K., Kostin V., Trubitsin A.
Siberian herald of agricultural science 2005; (3): 35-40
A complex inspection of soybean sowings carried out in 2000 has shown that all Primorye zoned varieties were affected by viral diseases to a variable extent. The soybean varieties Venera and Primorskaya-529 were affected by virosises to the worst extent (at the average throughout the Krai 65,7% and 80%, respectively), the varieties Hodson and Vitiaz were the least affected varieties (11,1% and 13,8%, respectively). Virosises were more extended among long cultivated varieties and their symptoms were developed there more severely than among the varieties zoned in the last 15-18 years. The soybean mosaic virus was the most widespread virus. Its average contribution to all fixed virosises was about 86,7%. The soybean affection by virosises correlated directly with the plant louse colonization grade of the soybean plants. Plant louses are carriers of this virus infection. On plants of the Primorskaya-529 variety the plant louses made trial pricks 2-3 times more often and the density of their colonies was twice higher than on plants of the varieties Hodson and Venera. It is shown that all soybean sorts were affected by virosises in weedy sowings.
