The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 887
... plants , such as Abutilon and Rembrandt tulips , owe their horticultural uniqueness and desirability to being inherently virus infected . Virus transmission . Some viruses are quite infectious and spread easily from diseased plants by ...
... plants , such as Abutilon and Rembrandt tulips , owe their horticultural uniqueness and desirability to being inherently virus infected . Virus transmission . Some viruses are quite infectious and spread easily from diseased plants by ...
Page 888
... plants , tobacco mosaic virus ( TMV ) is best known and has great economic importance . Besides affecting many members of the nightshade family ( Solanaceae ) , which includes tobacco , tomato , potato , pepper , egg- plant , and ...
... plants , tobacco mosaic virus ( TMV ) is best known and has great economic importance . Besides affecting many members of the nightshade family ( Solanaceae ) , which includes tobacco , tomato , potato , pepper , egg- plant , and ...
Page 938
... plants , Vavilov investigated the geo- graphical locales of wild ancestors of modern cultivated plants . He called these locales " genecentres " and distin- guished between primary genecentres , regions where the ancestors of modern ...
... plants , Vavilov investigated the geo- graphical locales of wild ancestors of modern cultivated plants . He called these locales " genecentres " and distin- guished between primary genecentres , regions where the ancestors of modern ...
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