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The effect of cereal break crops on barley mild mosaic virus
Author(s) -
ADAMS M J,
JONES D R,
O'NEILL T M,
HILL S A
Publication year - 1993
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.1744-7348.1993.tb04070.x
Subject(s) - biology , agronomy , cultivar , propagule , hordeum vulgare , take all , cropping , bioassay , barley yellow dwarf , poaceae , fungus , virus , plant virus , botany , agriculture , virology , ecology , genetics
Summary The effects of growing one, two or three years of resistant barley or winter wheat on barley mild mosaic virus were studied in experiments on two naturally‐infested sites in Gloucestershire and Cambridgeshire. Disease incidence and yield of the susceptible cultivars Igri and Maris Otter following a three year break were not significantly different from those of control plots that had grown continuous susceptible barley. The effects of cropping sequence treatment on soil populations of the fungus vector, Polymyxa graminis, were assessed by estimating most probable numbers of propagules following bioassays. Variability was large and neither total numbers of propagules, nor those carrying virus, was significantly affected by the cropping treatments.