Mohammad Ali Askari; Mesbah Babalar; Marjan Sadat Hosseini; Majid Amani Beni
Abstract
The current study was conducted in order to evaluate the effect of Mono and Di-potassium phosphate combination (MDKP) on some quantitative and qualitative characteristics of Iranian pomegranate (CV. Malas-e-Saveh) in Pomegranate Research Center of Saveh city, in 2012. To adjust the pH of the solution, ...
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The current study was conducted in order to evaluate the effect of Mono and Di-potassium phosphate combination (MDKP) on some quantitative and qualitative characteristics of Iranian pomegranate (CV. Malas-e-Saveh) in Pomegranate Research Center of Saveh city, in 2012. To adjust the pH of the solution, the Mono Potassium Phosphate and Di-Potassium Phosphate combined with each other in the ratio of 1:3, and their combined effects (Mono and Di-potassium phosphate) were studied. This experiment was carried out based on randomized complete block design (RCBD) with four concentrations of MDKP (0, 0.05, 0.1 and 0.2%) at two stages (Full bloom stage and one month after full bloom) and three replications per treatment. The results showed that foliar spray at concentrations of 0.1% and 0.2% resulted in significant increase in yield per tree, fruit number, Titrable Acidity (TA) compared to control treatment, so that 0.1% spraying caused 12/16% increase in yield per tree and 9/17% enhancement in fruit number in comparison to control treatment. Furthermore, foliar spray brought about significant enhancement in aril juice and color intensity of extract in which the highest amount of aril juice and color intensity of extract was obtained in 0.2 % and 0.1 % treatments, respectively. Foliar spray at 0.2 % concentration resulted in the reduction of Total Soluble Solids/Titrable Acidity ratio by 10% compared to control treatment. In conclusion, the results of this study show that MDKP spray at 0.1 % concentration was more effective than other concentrations.
Majid Amani Beni; Abdollah Hatamzadeh; Ali Nikbakht; Mahmood Ghasemnejad; Sara Nikkhah Bahrami; Sohrab Davarpanah
Abstract
Tuberose flower (Polianthes tuberosa L.) is an important commercial cut flower in the world, however the short vase life is one of its major problems. So, an experiment was carried out by using five different levels of humic acid (HA) mixed with sucrose and seven different levels of silver nanoparticles ...
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Tuberose flower (Polianthes tuberosa L.) is an important commercial cut flower in the world, however the short vase life is one of its major problems. So, an experiment was carried out by using five different levels of humic acid (HA) mixed with sucrose and seven different levels of silver nanoparticles (SNP) mixed with sucrose in vase solution on tuberose cut flowers cv." Single". The results indicated that there were significant differences between treatments. The decline of fresh weight in flowers treated with 25, 50 and 75 mg L-1 HA was fewer compared to other levels. Also, the effect of HA on vase life and water uptake index was significantly higher in 25 mg L-1 HA (2.25 days more than control). SNP treatments increased the water uptake, fresh weight, total protein and declined lipid peroxidation amount compared to the control flowers. The results also showed that flowers which were treated with 1 mg L-1 SNP had 2.87 days vase life more than the control flowers. To sum up it can be demonstrated that suitable levels of HA and SNP improved better morphological and physiological properties and eventually increases the vase life of cut tuberose flowers.
