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Role of ethylene in distribution of assimilates in cut carnations
1Centre for Agrobiological Research, P.O. Box 14, NL-6700 AA Wageningen, The Netherlands.
Abstract:
Distribution patterns of assimilates were studied during senescence in cut carnation flowers pretreated with water or with the flower preservative and anti-ethylene agent, silver thiosulphate. Within the first 5 days after harvest a substantial translocation of assimilates to petals was observed, which ended simultaneously with wilting of the petals. Silver thiosulphate pretreatment prevented wilting and caused a continuous translocation towards the petals. Such a pretreatment caused a decrease in the translocation of assimilates to the pistil, which in water controls continued to accumulate radioactive assimilates during post-harvest life. The interaction between ethylene and assimilate translocation in cut carnation flowers is discussed.
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