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INTRODUCTION AND BRIEF HISTORY OF HOTWATER
HYGIENE AND LAYOUT OF HOTWATER TREATMENT
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30 minutes 60 minutes boiler buds CALADIUM calorifier carpels cent chrysanthemum circulating pump clean cold water containers control of stem cool corms crates cuttings damage eelworm Aphelenchoides eelworm Ditylenchus dipsaci effect efficiency five minutes flower formaldehyde four hours fungicide GALTONIA growers growth heat losses heat required heater Hot water treatment hot-water treated hot-water treatment plant hours at 45°C immersion initial insulation kill late-struck lb/hr lifted loose smut Meloidogyne methyl bromide mites Muller in litt narcissus bulbs narcissus fly nematicide Netherlands no°F obtained onion sets organomercury compounds perianth pests petals plant material potato tuber eelworm pre-soak for 24 PUSCHKINIA recommended reduce removed roots sack Saintpaulia Seale-Hayne agric seed shallots short treatments spathe stage stamens Stan1land steam injection stem eelworm Ditylenchus stocks strawberry runners tank temperature thermometer thermostat thermostatically controlled three hours treatment of narcissus treatment temperature varieties warm storage washed water temperature weeks wetter