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Growth and Yield Comparisons among Barley Varieties with Different Resistance to Barley Mosaic Virus  

Park Jong-Chul (Honan Agricultural Research Institute, NICS, RDA)
Lee Mi-Ja (Honan Agricultural Research Institute, NICS, RDA)
Choi In-Bae (Breeding & Genetics Division, NICS, RDA)
Kim Mi-Jung (Honan Agricultural Research Institute, NICS, RDA)
Park Chul-Soo (Honan Agricultural Research Institute, NICS, RDA)
Kim Jung-Gon (Honan Agricultural Research Institute, NICS, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.51, no.5, 2006 , pp. 477-482 More about this Journal
Abstract
Viral diseases, especially Barley yellow mosaic virus (BaYMV) and Barley mud mosaic virus (BaMMV), have been most serious in barley fields. In this study, we investigated the effect of different level of resistance to viral diseases on the plant growth and yield in barley. Various viral disease symptoms on leaves of overwintered plants were similar between medial-resistant and susceptible varieties of Saessalbori and Baegdong. In diagnosis of virus infection, BaYMV and BaMMV were detected in Saessalbori and Baegdong, but not in the resistant variety, Naehanssalbori. Plant height was restrained about $11{\sim}12cm$ prior to heading in Saessalbori and Baegdong comparing to Naehanssalbori. Even if both varieties were medial resistant to virus diseases, Saessalbori was different from Baegdong in heading date and culm length due to its recovery from viral damages prior to heading. Both medial-resistant and susceptible varieties were quite different from the resistant variety in yield components such as heading date, number of spikes and culm length when evaluated in the virus-infected or non-infected field. Baegdong delayed 7 days in heading date and reduced by more than 50% in culm length and spike numbers as compared to Naehanssalbori. On the other hand, Saessalbori showed similar heading date, but was shorter by 20% in culm length than Naehanssalbori. Three varieties tested in the non-infected field over two years were not significantly different for yield potential with ranges of $340{\sim}405kg/10a$. However, significant yield reduction (P<0.01) was observed in Saessalbori and Baegdong with ranges of $108{\sim}288kg/10a$ as compared to Naehanssalbori (391 kg/10a) when tested in the virus-infected field. Yield potentials of Saessalbori and Baegdong reduced by 35 and 63%, respectively in the virus-infected field as compared to those in the non-infected field. Our results showed that damages from virus diseases were significant on the early plant growth to yield and its components in barley.
Keywords
barley; BaYMV; BaMMV; resistance; yield;
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