| 单词 | reversion disease |
| 释义 | > as lemmasreversion disease 9. More fully reversion disease, reversion virus. An incurable viral disease of the blackcurrant which causes a reduction in the yield of fruit, and is characterized by a decrease in the number of leaf lobes.The disease is transmitted by the blackcurrant gall mite Cecidophyopsis ribis. ΘΚΠ the world > plants > disease or injury > [noun] > type of disease > viral diseases > associated with food or crop plants yellow rust1808 leaf curl1850 peach yellows1880 tobacco mosaic virus1914 cucumber mosaic1916 reversion1918 plum pox1933 bushy stunt1936 swollen shoot1936 tobacco streak1936 sharka1961 1918 A. H. Lees in Ann. Rep. Agric. & Hort. Res. Station (Univ. Bristol) 25 Reversion in black currants is..nearly always gradual in its appearance. 1937 K. M. Smith Textbk. Plant Virus Dis. ii. 99 Fruits of black currant plants suffering from reversion either do not form at all..or the fruits may begin to form, in which case development is soon arrested. 1983 Philos. Trans. (Royal Soc.) B. 302 519 The incidence of blackcurrant reversion disease. 2009 Western Mail (Cardiff) (Nexis) 30 May 25 Inspect the buds in late winter, or count the lobes of the leaves. There should be five. If there are only three, then it's most likely reversion virus. < as lemmas |
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