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| Publication Type:
| Refereed |
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| Author(s): | Catherall, P. L.;
Parry, Anne L. |
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| Author Affiliation: | Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed, UK. |
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| Title: | Effects of barley yellow dwarf virus on some varieties of Italian, hybrid and perennial ryegrasses and their implication for grass breeders. |
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| Source: | Plant Pathology. Vol. 36, No. 2, June 1987, p. 148-153. |
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| Publishing Information: | Oxford : Blackwell Scientific Publications |
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| Keywords: | TIC Keywords: Lolium multiflorum; Lolium perenne; Barley yellow dwarf virus; Rhopalosiphum padi; Disease control
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| Abstract/Contents: | "With the exception of chlorotic streaks in a few plants, a severe strain of barley yellow dwarf virus (BYDV) transmitted by Rhopalosiphum padi caused no obvious foliar symptoms in 54 varieties of ryegrass when they were defoliated monthly. When defoliation ceased and yellow or red discoloration of the leaf tips was allowed to develop, it was a poor indicator of the severity of disease effect on yield. Thus, some varieties which developed marked discoloration were less severely damaged than some with little or none. While BYDV reduced yield significantly in some varieties of ryegrass, it increased it significantly in others. In some varieties these BYDV-induced yield increases occurred throughout the year, but in others they occurred in 1 month and were offset by a yield decrease in another. BYDV infection caused a greater yield reduction in roots than in shoots. Even varieties giving increased shoot yield gave decreased root yield. The possible disadvantages of the resulting increase in shoot to root ratio are discussed. It is concluded that breeding ryegrass for BYDV-induced yield increases may be easier and more rewarding than breeding for resistance or tolerance." |
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| Language: | English |
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| References: | 19 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Catherall, P. L., and A. L. Parry. 1987. Effects of barley yellow dwarf virus on some varieties of Italian, hybrid and perennial ryegrasses and their implication for grass breeders.. Plant Pathol. 36(2):p. 148-153. |
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MSU catalog number: SB 599 .P96 |
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