Ziba Mohammadi; Seyyed Najmodin Mortazavi
Abstract
Alstroemeria flower is one of the most important cut flowers in the world. Some materials can increase longevity of cut flowers. The aim of this research was evaluating the effect of some chemical solutions on postharvest Alstroemeria (cv. Stratus) cut flowers. This experiment was conducted with two ...
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Alstroemeria flower is one of the most important cut flowers in the world. Some materials can increase longevity of cut flowers. The aim of this research was evaluating the effect of some chemical solutions on postharvest Alstroemeria (cv. Stratus) cut flowers. This experiment was conducted with two factors of sucrose at four concentrations, 0, 5, 10 and 15 g/l and salicylic acid (SA) at four concentrations, 0, 100, 200 and 400 mg/l with three replication and arranged in a completely randomized design. During experiment, longevity, chlorophyll content, solution uptake, relative water content (RWC), electrolyte leakage (EL) and leaf yellowing were evaluated. Analysis of variance showed that different levels of sucrose had significant effect only on electrolyte leakage of petal and chlorophyll content. The salicylic acid effect was significant at the one percent level on all traits except for electrolyte leakage of petal. The interactions between sucrose and SA on all traits at the five percent level had a significant effect. The results showed that treatment of 15 g/l sucrose had the highest chlorophyll content and the lowest electrolyte leakage of petal. The highest longevity, relative water content of leaf and petal, chlorophyll, solution uptake and the lowest electrolyte leakage of leaf and leaf yellowing were obtained from treatment with 400 mg/l of salicylic acid. Treated with15 g/l sucrose plus 400 mg/l SA had highest longevity, solution uptake and the lowest electrolyte leakage of petal in compared to the control. Thus, using 400 mg/l SA to increase the longevity and quality of Alstroemeria (cv. Stratus) cut flowers is recommended.
S. jozghsemi; S. N. Mortazavi; Mohsen Khodadadi
Abstract
The Tuberose cut flower is much less longevity in postharvest. The less vase life due to stress of deficit carbohydrate and quick respiration on inflorescence. In this study, effectiveness factors, sucrose, CaCl2, Al2So4 and re-cut the stems. In current research two separate experiments were arranged ...
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The Tuberose cut flower is much less longevity in postharvest. The less vase life due to stress of deficit carbohydrate and quick respiration on inflorescence. In this study, effectiveness factors, sucrose, CaCl2, Al2So4 and re-cut the stems. In current research two separate experiments were arranged as a factorial based on compeletly randomized design. The first experiment were added to all experimental units have 100 ppm Al2So4 and investigation the effect of sucrose and CaCl2 factors. In the other experiment was added in all treatments of suitable sulation that obtain from first experiment (3.5 percent Sucrose and 200 ppm CaCl2) and investigation the effect of Al2So4 and re-cut stems factors. The vase life of cut flower, relative water content(RWC), a, b and total chlorophyll content were evaluated. The results of first experiment indicated the effect of reciprocal treatment with sucrose (3.5 %) and CaCl2 (200 ppm) increased significantly on the protection of a, b and total chlorophyll content and RWC, and increased the longevity at the time 16 days about 88 percent. The result of secondry experiment showed that the third important cause of reduced longevity of tuberose cut flower high susceptibility to blockage xylem, and treatment with protection sulation containing 3.5 % sucrose and 200 ppm Al2So4 and spray 200 ppm CaCl2 and Re-cut every 48 hourse were recommended for using to dissolve problems of post harvest the Tuberose cut flower.
