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Decline and other effects of five virus infections on three varieties of plum ( Prunus domestica L.)
Author(s) -
POSNETTE A. F.,
CROPLEY R.
Publication year - 1970
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1970.tb04568.x
Subject(s) - biology , prunus , seedling , rootstock , bark (sound) , horticulture , botany , ecology
SUMMARY The effects of five different virus inocula on three varieties of plum ( Prunus domestica L.) were studied in a field trial of 10 years duration. The viruses causing line pattern, ringspot, prune dwarf and bark split had no effect on the growth of Marjorie's Seedling and Cambridge Gage, and only that causing prune dwarf stunted Oullins Gage trees. However, these viruses diminished the fruit yield of one or more varieties, and prune dwarf virus seriously decreased the yield of all three. Decline disease, probably caused by a strain of Prunus necrotic ringspot virus, developed in Marjorie's Seedling but not in the other varieties. The symptoms first appeared after 5 years and then the trees declined progressively with necrotic ‘incompatibility’ between rootstock and scion.