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The Glasshouse Crops Research Institute
CROP GROUPS REPORTS
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acid activity Agaricus bisporus Agricultural Research Annual Report aphids applied B.Sc Bacillus thuringiensis bacteria biological control brassicae breeding bromide bulbs carnation cells chrysanthemums commercial compost concentration Crop Science Crops Research Institute cucumber cultivars disease effect Encarsia formosa enzyme ethylene experiments flower fungi Fusarium genes gibberellin glasshouse Glasshouse Crops Research growers grown growth H. D. Burges Horticultural increased infected inoculated isolates larvae leaf leaves lettuce levels light litre-1 M.I.Biol method methyl bromide mushroom nitrogen nutrient nutrient-film culture Nutrition pathogens peat pests Ph.D photosynthesis phytochrome Plant Physiology Plant Physiology Department potassium predators production programme Report for 1979 resistance ripening root samples sciarid shoots soil solution species spores spray stage stem strains studies substrate sucrose symptoms technique temperature tests thuringiensis tion tissue tomato tomato fruit tomato plants treatments trials truss uptake Verticillium Verticillium lecanii virus virus-free viruses weeks whitefly wilt Winsor yield