Zahra Afifipour; Morteza Khosh-Khui
Abstract
Tuberose (Polianthes tuberosa L.) is one of the most important cut flowers in Iran. This research was conducted to investigate the effects of spraying a mixture of amino acids on the physiological and morphological characteristics of tuberose. The experiment was carried out in two successive years (2009 ...
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Tuberose (Polianthes tuberosa L.) is one of the most important cut flowers in Iran. This research was conducted to investigate the effects of spraying a mixture of amino acids on the physiological and morphological characteristics of tuberose. The experiment was carried out in two successive years (2009 and 2010) using two tuberose cultivars ‘Dezfuli’ and ‘Mahallati’. The experiment was arranged as a factorial on a completely randomized design with 4 replications. Treatments were 0, 0.25, 0.5, and 0.75 mg L-1 of amino acids. The results showed that applying amino acids improved all growth and flowering characteristics of tuberose cultivars. Concentration of 0.75 mg L-1 amino acids enhanced the floral stem, inflorescence, and stem diameters. The fresh weight of floral stem increased about 22% as a result of spraying with 0.25 mg L-1 amino acid mixture. Total protein and nitrogen contents of the ‘Dezfuli’ cultivar showed about 60% enhancement when using a 0.5 mg L-1 mixture of amino acid. In general, the effects of amino acids on ‘Dezfuli’ were greater than the ‘Mahallati’ cultivar.
Sonia Bahremand; Jamshid Razmjoo; Homaun Farahmand
Abstract
Tuberose (Polianthus tuberosa) is a commercially important cut flower; but its longevity and quality characteristics are compromised by stress during storage and transportation. Thus, it is important to determine the most appropriate preservative solution to best maintained cut flowers. Tests were done ...
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Tuberose (Polianthus tuberosa) is a commercially important cut flower; but its longevity and quality characteristics are compromised by stress during storage and transportation. Thus, it is important to determine the most appropriate preservative solution to best maintained cut flowers. Tests were done to examine the effects on of nano-silver (NS) (0, 15, 30 and 45 mg L-1) and sucrose (0, 4 and 8%) on the quality properties of fresh weight, relative water content, water uptake, total soluble solids, wilting percentage, flower opening and flower longevity. Results showed that averages of evaluations for flower longevity, open flower and stem diameter, fresh weight and relative water content increased under sucrose application and that those for while flower longevity, open flower and stem diameter, water uptake, fresh weight and relative water uptake were increased by NS application. However, applications of 4% sucrose or 45 mg L-1 NS treatments enhanced all measured parameters, with only a few exceptions. These parameters were further increased under the treatment of sucrose at 4% combined with 45 mg L-1 NS, suggesting that the quality of tuberose cut flowers can be improved by treatment with a combination of sucrose and NS.
