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Studies on the use of dry heat to decontaminate niger seed guizotia abyssinica infested with dodder seed cuscuta sp

Studies on the use of dry heat to decontaminate niger seed guizotia abyssinica infested with dodder seed cuscuta sp

Seed Science & Technology 16(2): 501-506

Two species of dodder, Cuscuta campestris Yuncker and C. indecora Choisy were used to test methods of devitalisation. A temperature of C was found to be effective in attaining zero germination even at an exposure period of only a quarter of an hour. The use of heat to decontaminate niger seed (Guizotia abyssinica) infested with dodder seems to be a practical solution. The niger seed does not appear to be injured for use as bird feed (its primary use) and some 4% still germinated after four hours at C. Temperature probes were inserted throughout the load (including the centre of the bags). Treatment time started when all probes registered C or higher.

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Accession: 006522810

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