| 맥류의 토양 전염성 Bymovirus의 감염이 국내 육성 맥주보리의 생육 및 수량에 미치는 영향 |
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박종철, 김미정, 이은숙, 박철수, 강천식, 현종내, 이정준, 김태수, 김기종 |
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| Effects on Growth and Yield of Korean Malting Barley Cultivars by Soil-borne Bymovirus Infection |
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Jong Chul Park, Mi Jung Kim, Eun Sook Lee, Chul Soo Park, Chun Sik Kang, Jong Nae Hyun, Jung Joon Lee, Tae Soo Kim, Ki Jong Kim |
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| Abstract |
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Viral diseases, especially Barley yellow mosaic virus (BaYMV) and Barley mild 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 malting barley. In diagnosis of virus infection, BaYMV and BaMMV were detected in ``Doosan 29`` (susceptible), however, ``Jinyangbori`` (moderate susceptible) and ``Hopumbori`` (moderate) was infected by only BaYMV. Plant height was restrained about 8~29% in overwintered plant regeneration stage depending on the resistant of each cultivar. The culm length damaged also to 9~12% by BaYMV infection. The tiller numbers reduced to 10~14% in overwintering season, however, the head numbers in harvest season more decreased to 26~33%. Heading date was delayed to 1~3 days by the infection. In examination of yield components, 1,000 kernel weight and l weight reduced according to culrivar`s resistant degrees to 4.0~6.4% and 1.0~4.2%, respectively. The yield of abortive grain was doubled in BaYMV infection comparing to non-infested field. Three varieties tested in the non-infected field over two years were not significantly different for yield potential with ranges of 509 kg~632 kg/10a. However, significant yield reduction was observed in ``Saessalbori`` and ``Baegdong`` with ranges of 77~177 kg/ 10a as compared to ``Hopumbori`` (467 kg/10a) when tested in the virus-infected field. Yield potentials of these cultivars reduced by 26~43%, respectively, in the virus-infected field as compared to those in the non-infected field. |
| Key Words:
Barley, BaMMV, BaYMV, Resistance, Yield |
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