Agriculture
Lorin ali ahmad; ali sorooshzadeh; ali mokhtassi
Abstract
In recent years many research studies have been carried out to use a vertical planting system for production of some plants. Although saffron is one of the most expensive spices in the word, there is no investigation about saffron production in a vertical planting system. Therefore, the growth and production ...
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In recent years many research studies have been carried out to use a vertical planting system for production of some plants. Although saffron is one of the most expensive spices in the word, there is no investigation about saffron production in a vertical planting system. Therefore, the growth and production of saffron plant in two different systems (vertical and horizontal) were studied in the agricultural research field of the Tarbiat Modares University during the 2013-2014 growing seasons. In the vertical system, saffron corms were planted in fabric bags containing potting soil. The fabric bags were hanged on a cube of metal with an area of each side of the cube being equal to 2.25 square meters. In the horizontal system, the corms were planted in three plots with the area of each plots being 2.25 square meters. The results showed that in the vertical planting system, the number of flowers, flower dry weight and dry weight of stigma per unit area of land (10 flower, 347.34 and 0.56 mg respectively) were significantly higher than those obtained in the horizontal culture (They were almost three times higher) .In contrast, the numbers and dry weight of lateral corms (2.4 corm and 0.36 g respectively) and the dry weight of apical corm (0.88 g) in the horizontal system were significantly greater than those obtained in the vertical system. Dry weight of leaf and root were significantly greater in the vertical system. The total number of buds and leaves were more in the horizontal culture. However, the maximum leaf length of the vertical planting system was higher than those of the horizontal system.
Agriculture
Fatemeh Nasirian; Ali Sorooshzadeh; Faezeh Ghanati; Hussein Oraki
Abstract
This research was conducted in a completely randomized design with three replications, to evaluate the effect of root-zone temperature on antioxidant activity in saffron corm in 2013. In this experiment, effect of two root-zone temperatures (23±1°C and 33±1°C ) in growth chamber ...
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This research was conducted in a completely randomized design with three replications, to evaluate the effect of root-zone temperature on antioxidant activity in saffron corm in 2013. In this experiment, effect of two root-zone temperatures (23±1°C and 33±1°C ) in growth chamber on the activity of antioxidant enzymes: peroxidase, polyphenol oxidase, superoxide dismutase, catalase and auxin oxidase in the apical of saffron corms during corm dormancy stage (July) and at beginning corm growing stage (October) were studied. The results showed that at both root-zone temperatures the activity of all enzymes were least in July. Moreover at the 33°C root-zone temperature no differences in enzyme activities were observed between the months of July to October. In addition measured soluble sugars in buds and corms of saffron showed the highest rate of glucose, mannose, and arabinose at a temperature of 23° C, respectively. Thus, treatment of 23° C as the best temperature for storage and maintenance of saffron corms was introduced.
Agriculture
Nasim Rezvani; Ali Sorooshzadeh
Abstract
Saffron (Crocus sativus L.) is cultivated as spices, medicinal and aromatic plant species. At autumn season, heavy rainfall can cause flooding stress and inhibits growth of saffron. Thus this research was conducted to study the effect of silver ion (as an ethylene inhibitor) on growth of saffron under ...
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Saffron (Crocus sativus L.) is cultivated as spices, medicinal and aromatic plant species. At autumn season, heavy rainfall can cause flooding stress and inhibits growth of saffron. Thus this research was conducted to study the effect of silver ion (as an ethylene inhibitor) on growth of saffron under flooding conditions. The corms of saffron were soaked with one concentration of nano silver (0, 40, 80 or 120 ppm) and then planting under flooding stress and non flooding stress conditions. Results showed that number of roots, root length, root fresh and dry weight, leaves fresh and dry weight were reduced by 10 day flooding stress. Soaking saffron corms with 40 or 80 ppm concentration of nano silver rewarded the effect of flooding stress on the root number, by increasing it. Furthermore, 40 ppm of nano silver increased root length in stress. Nano silver 80 ppm in flooding stress, increased leaves dry weight.
Biotechnology and genetics
Akbar Tavakkoli; Ali Sorooshzade; Majid Ghorbani Javid
Abstract
The objectives of this research were investigated the effects of removal of lateral and main buds in different corm size on vegetative traits and yield of saffron. The research was conducted as factorial based on a randomized complete block design with three replications at the Research field of Faculty ...
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The objectives of this research were investigated the effects of removal of lateral and main buds in different corm size on vegetative traits and yield of saffron. The research was conducted as factorial based on a randomized complete block design with three replications at the Research field of Faculty of Agriculture, Tarbiat Modares University in Tehran-Iran, during growing season of 2012-2013. The first factor was corm size with two levels of corm weight (2-4 and 6-8 g) and the second factor was buds removal with nine levels included without bud removal, remove all lateral buds, remove all buds except main buds and one lateral bud, remove all buds except main buds and two lateral buds, remove all buds except main buds and three lateral buds, remove all buds except one lateral bud, remove all buds except two lateral buds, remove all buds except three lateral buds, remove all buds except four lateral buds. In this research, vegetative traits in the first year and reproductive traits in the second year were investigated. The results showed that by removing main bud from corm leaf length and root length were decreased. Also, there was most root length by removing all lateral buds. Overall, the results showed that bud removal could be produce large corm but main bud should not eliminated. The most appropriate the number of buds that could be remaining is 4 large buds on saffron corm.
