Abstract
+prolonging vase life and decreasing post-harvest losses are considered a basic strategy towards sustainable development of agriculture, and the application of growth regulators, e.g. benzyl adenine(BA) and 1-metylcylcopropane(1-MCP), is one of the practical methods for them. The effects of benzyl adenine(BA) and 1-metylcylcopropene(1-MCP) on some biochemical characteristics and vase life of rose cv. ‘Royal Baccara’ (Rosa hybrida L. cv. ‘Royal Baccara’), were explored in a factorial experiment based on a randomized complete block design with three replications in 2017. The factors included BA at three levels of 0 (control), 75 and 150 ppm and 1-MCP in three levels of 0 (control), 1 and 2 µl/L-1. The results showed that the maximum soluble protein content was observed in 150 (ppm) BA+ 2 (µl.L-1) 1-MCP treatments on the second, fourth, sixth, and eighth days. The results of this research revealed that BA at the rates of 75 and 150 ppm and 1-MCP at the rates of 1 and 2 (µl.L-1) enhanced soluble protein content by 10.49, 13.37, 15.18, and 18.18 percent as compared to the control, respectively. The results showed that the maximum proline content was related to the control and the minimum content was observed in the plants treated with 150 (ppm) BA+ 2 (µl.L-1) 1-MCP. The endoproteases enzyme content was slightly decreased on the eighth day, indicating the efficacy of BA and 1-MCP in inhibiting the senescence process and prolonging vase life of rose flowers. The results showed that the application of 1 or 2 μl.L-1 1-MCP and 150 mg L-1 BA can improve the vase life of cut roses
Highlights
Rose,( Rosa hybrida L.), belongs to the important family of Rosaceae and is one of the most important cut flowers in the world so that, it presently has the first rank in terms of cultivation and trade in most countries of the world (Anonymous, 2016)
The variance analysis table suggested that the soluble protein content, solution uptake, proline content, endoprotease enzymes, stem and petal carbohydrates and vase life were affected by the simple and interactive effects of Benzyl adenine (BA) and 1-MCP on different days, and the observed differences were statistically significant at one and five percent levels (Tables 1, 3, 5, 7 and 9)
The results revealed that BA at the rates of 75 and 150 ppm and 1-MCP at the rates of 1 and 2 enhanced soluble protein content by 10.49, 13.37, 15.18, and 18.18 percent, respectively, as compared to the control
Summary
Rose,( Rosa hybrida L.), belongs to the important family of Rosaceae and is one of the most important cut flowers in the world so that, it presently has the first rank in terms of cultivation and trade in most countries of the world (Anonymous, 2016) In spite of their high economic value, cut flowers are highly prone to putrefaction. Petal wilting is accompanied by a decrease in water absorption, flower senescence, abscission and discoloration of petals. It is important to use methods that can prolong flowers vase life (Wagstaff et al, 2002)
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