• List of Articles Onion

      • Open Access Article

        1 - Sequential Solvent Extraction of Red-Onion (Allium cepa L) Skin: Influence of Solvent Polarity on Antioxidant and Radical Scavenging Activity
        S. Mahdian Kouchaksarayi S.M. Vahdat M. Hejazi M. Khavarpour Z. Salimi
      • Open Access Article

        2 - Ability of Callus Induction and Plant Regeneration in White Kashan and Red Rey Onions Cultivars (Allium cepa L.) Using Root - tip Culture under Invitro Conditions
        A. Goravanchi S.A. Mousavi zade A.R. Motallebi Azar V. Rashidi
        This present study has been carried out in order to evaluate the effect of culture medium and genotype on callus induction and regeneration of two onion varieties through root tip culture. For callus induction, micro samples from 1-3 mm root tip of 2 day old in vitro ge More
        This present study has been carried out in order to evaluate the effect of culture medium and genotype on callus induction and regeneration of two onion varieties through root tip culture. For callus induction, micro samples from 1-3 mm root tip of 2 day old in vitro germinated plants laied on four culture media (1mg/l 2, 4-D, 0/5mg/l 2, 4-D, 0/5mg/l 2, 4-D with 0/5mg/l kinetin, 1mg/l 2,4-D with 1mg/l kinetin) in darkness conditions. Subculture of samples was done after four weeks. The  produced calluses were laied in embryogenic culture medium for 4 weeks and after formation of embryoes, they were put in plant regeneration culture medium for eight weeks. Result showed that callus induction percentage is affected significantly by cultivar and culture medium, but reciprocal effect of both factors was not meaningful on callus induction percentage. Plant regeneration percentage and number of embryo per callus is affected meaningfully by cultivar, but type of culture medium and reciprocal effect of both factors was not meaningful on plant regeneration percentage and number of embryoes per callus. Embryogenic callus percentage is affected meaningfully by cultivar, but type of culture medium had not meaningful effect on embryogenic callus percentage. Callus induction percentage, plant regeneration percentage, number of embryo per callus and embryogenic callus percentage, are higher in white Kashan cultivar in relation to red Rey one and in culture medium involving hormonal combination of 2,4-D and kinetin, application of 0/5mg/l 2, 4-D can be usful. Considering the callus induction percentage, embryogenic and plant regeneration percentage, white Kashan cultivar and  culture medium containing 0/5mg/l 2, 4-D is appropriate as compared with other cultures.                       Manuscript profile
      • Open Access Article

        3 - Effect of Osmo-air drying on quality of dried onion
        منصوره Mozaffary جابر Solaimani نارملا Asefi پریسا Jafarian
        Osmotic dehydration is a process of partial removing of water from food by immersion of the product in a hypertonic aqueous solution. This study aimed to investigate  the effect of osmotic dehydration on quality of hot- air- dried onion. Azarshahr red onion variety More
        Osmotic dehydration is a process of partial removing of water from food by immersion of the product in a hypertonic aqueous solution. This study aimed to investigate  the effect of osmotic dehydration on quality of hot- air- dried onion. Azarshahr red onion variety was used for the experiments. In order to define an optimum condition for osmo-drying process, some parameters including temperature, time and concentration of dehydration solution was evaluated. Based on water loss(WL) and solid gained (SG), the best treatment of temperature, time and concentration of dehydration solution were determined as 40˚C, 1 h and %5 respectively. One series of samples were prepared and dried in oven at 65˚C for 12 h. These samples were packed in two different ways including aluminium foil under the pressure of inert gas and in polyethylene packs. The samples were kept in ambient temperature. Every 2 months during storage period, parameters  such as rehydration and organoleptic properties were performed on the samples.The results organoleptic test revealed that, the quality of samples decreases after 4 months of storage.Moreover, the samples that were packed by polyethylene showed the most desirable properties. Among osmotic samples, the degree of rehydration of the sample prepared with concentration of % 5 in 40˚C in 1 hour and packed in foil under inert gas, was greater than the other osmotic samples. Rehydration parameters had direct relation with temperature and the time of rehydration. Therefore, the amount of rehydration improves with increasing time and temperature. Manuscript profile
      • Open Access Article

        4 - Effect of direct seeding and transplanting methods on yield and yield components of different onion cultivars in short-day condition
        H. Kh M. Kh A. ابوطالبی
        In order to evaluate the effect of direct seeding and transplanting methods on yield and yield components of seven onion cultivars, an experiment was conducted as factorial arrangement in randomized complete block design with four replications in Agricultural Research S More
        In order to evaluate the effect of direct seeding and transplanting methods on yield and yield components of seven onion cultivars, an experiment was conducted as factorial arrangement in randomized complete block design with four replications in Agricultural Research Station of Minab at 2011. The factors were consisted of culture methods (direct seeding and transplanting) and onion cultivars (602, 611, Mars, Mega, Primavera, Stratus and early White). Sowing in nursery was done in the middle of September and transplants were transferred to main field in the middle of November. Direct seeding was done at October, 22. In the direct seeding method, the transplants were thinned 50 days after sowing and plants distances were regulated 10 cm. Results showed that bolting percent, plant height and bulb shape index in the transplanting method were more than direct seeding method. Regarding, days to bulbing and harvest, transplanting onions were earlier ripening than direct seeding onions. Bulb yield in transplanting method was more than direct seeding method in all cultivars but this difference only was significant in 602, Mega and Stratus cultivars. The 611 and Primavera cultivars were earlier ripening than other cultivars. The lowest bulb yield was recorded in the 611 and Mars cultivars and there was no significant difference between other cultivars. Generally, in the condition of this experiment, transplanting method led to increasing of yield and early ripening of onion. Manuscript profile
      • Open Access Article

        5 - Antibacterial and Antioxidant Properties of Colorant Extracted from Red Onion Skin
        Sara Moosazad Peyman Ghajarbeigi Razzagh Mahmoudi Saeed Shahsavari Roghayeh Vahidi Ali Soltani
      • Open Access Article

        6 - Study of biochemical diversity between landraces of Allium sativum in different regions of Hamadan province
        Leila Akbari Mehdi Kakaei
        This research aimed to determine the diversity and identify some biochemical parameters among different garlic cultivars. A factorial experiment with a completely randomized design and three replications was carried out in the central laboratory of Razi University in 20 More
        This research aimed to determine the diversity and identify some biochemical parameters among different garlic cultivars. A factorial experiment with a completely randomized design and three replications was carried out in the central laboratory of Razi University in 2024 to group six ecotypes from different parts of Hamedan province based on their place of growth and determine their biochemical traits. The results of variance analysis of the studied traits showed a significant difference between the ecotypes in the traits of total chlorophyll, chlorophyll a, chlorophyll b, soluble sugar, flavonoid, and the two leaf and seed samples. The results of examining the interaction effect of ecotype in the samples indicated the significance of the total phenol content index among ecotypes. The ecotypes were grouped based on the cluster diagram and decomposition into main components, and they were placed in similar groups in terms of their biochemical traits. Considering the geographical conditions of the samples and their presence in the same geographic latitudes, the difference between the samples may be attributed to the difference between the genotypes of the ecotypes. There was a positive and significant correlation between chlorophyll a, chlorophyll b, and total chlorophyll. There was also a positive and significant correlation between phenol and flavonoid content. Based on the traits studied, Asad-abad and then Bahar-2 ecotypes can be introduced as desirable examples in clinical studies and can also be used for breeding programs. Manuscript profile