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Effect of STS, calcium nitrate and cold on the vase life of two rose cultivars Royal Red and Cocktail.

Effet du STS, du nitrate de calcium et du froid sur la durée de conservation de deux variétés de roses, "Royal Red" et "Cocktail".

Author(s) : SEDDIQI M., MOKHTARI M., AIT-OUBAHOU A.

Summary

Exogenous ethylene at low rates induces an inhibition of acceleration of flower bud opening, as well as leaf/flower abscission, depending on cultivar. These effects were overcome by pretreatment with 0.5 milliM silver thiosulfate which delivered 0.5 mol silver ion to each stem. The incorporation of calcium nitrate in the preservative solution lengthened the vase life of flowers by 1.5-3 days. Bud opening was equally improved in the 2 cultivars by given calcium nitrate concentrations. Cold storage of roses at 4 deg C in polystyrene boxes (standard storage) gave better results than storage under plastic film at the same temperature. Royal Red stored better than Cocktail. Roses cold-stored normally for 7 days are of acceptable quality and vase life if fed with preservative solution. Cold storage for a longer period reduced vase life and flower opening, and led to leaf/flower abscission.

Details

  • Original title: Effet du STS, du nitrate de calcium et du froid sur la durée de conservation de deux variétés de roses, "Royal Red" et "Cocktail".
  • Record ID : 1997-3401
  • Languages: French
  • Publication date: 1995
  • Source: Source: Proc. Int. Symp. postharvest Physiol. Pathol. Technol. hortic. Commod., Agadir
    470-479; 18 ref.

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