big vein disease
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Lettuce big-vein disease — causes leaf distortion and ruffling in affected lettuce plants.This disease was first associated in 1983 with a rod shaped virus Lettuce big vein associated virus , which is transmitted by the obligately parasitic soil inhabiting fungus, Olpidium … Wikipedia
big vein — noun or big vein disease : a soil borne virus disease of lettuce characterized by strikingly enlarged light yellow leaf veins and more or less stunting of the plants … Useful english dictionary
plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… … Universalium
nervous system disease — Introduction any of the diseases or disorders that affect the functioning of the human nervous system (nervous system, human). Everything that humans sense, consider, and effect and all the unlearned reflexes of the body depend on the… … Universalium
Classification Des Virus — La classification des virus ne peut être intégrée à celle réalisée pour les êtres vivants du fait que les virus ne sont pas considérés comme vivants, car ne pouvant se reproduire par leurs propres moyens. C est ainsi qu il a été nécessaire de… … Wikipédia en Français
Classification des virus — La classification des virus ne peut être intégrée à celle réalisée pour les êtres vivants du fait que les virus ne sont pas considérés comme vivants, car ne pouvant se reproduire par leurs propres moyens. C est ainsi qu il a été nécessaire de… … Wikipédia en Français
Bituminous coal — is a relatively soft coal containing a tarlike substance called bitumen. It is of higher quality than lignite coal but poorer quality than anthracite coal. Bituminous coal is an organic sedimentary rock formed by diagenetic and submetamorphic… … Wikipedia
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium
performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains … Universalium
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
