Firs t Report of Yellow Dwarf Viruses (YDVs) in the Rice Fields in the Trakya Region of Turkey

Authors : Havva İLBAĞI, Önder AYDIN

Pages : 96-101

View : 19 | Download : 7

Publication Date : 2020-07-30

Article Type : Research Paper

Abstract :Yellow dwarf viruses insert ignore into journalissuearticles values(YDVs); are responsible for the economically significant disease that affects cereal crops worldwide, reducing harves ted yield and quality of grains. These virus diseases on cereals have been prevailed and caused yellowing, dwarfing, reddening, and the reduction of grain yield on cultivated cereals since 1999 in the Trakya region of Turkey. This s tudy was conducted to inves tigate the presence of YDVs on rice and competitive weeds as barnyard grass Echinochloa crusgalli insert ignore into journalissuearticles values(L.); P. Beauv, Johnson grass Sorghum halepense insert ignore into journalissuearticles values(L.); Pers. and common reed Phragmites aus trialis insert ignore into journalissuearticles values(Cav.); Trin ex. S teudel in the Trakya region of Turkey. For this purpose, 120 symptomatic rice leaves and 18 weed leaf samples were collected from the rice fields in Trakya. A total of 138 symptomatic leaf samples were tes ted by DAS-ELISA and RT-PCR methods for the diagnoses of Barley yellow dwarf virus-PAV insert ignore into journalissuearticles values(BYDV-PAV);, Barley yellow dwarf virus-MAV insert ignore into journalissuearticles values(BYDV-MAV); and Cereal yellow dwarf virus-RPV insert ignore into journalissuearticles values(CYDV-RPV);. The screening tes t results revealed that 26 out of 138 leaf samples had CYDV-RPV, 5 of them infected with BYDV-PAV, and 10 leaf samples were found infected with a mixture of CYDV-RPV+BYDV-PAV. Thus, 41 out of 138 leaf samples at the rate, 30% were found infected with BYDV-PAV and CYDV-RPV. None of the samples had BYDV-MAV. To our knowledge, this is the firs t report of BYDV-PAV and CYDV-RPV in the mos t important rice-growing areas of Turkey
Keywords : Rice, weed, YDVs, CYDV RPV, BYDV PAV