Abdollah BeykKhormizi; Siavash Hosseini Sarghein; Mohammad Reza Sarafraz Ardakani; Seyed Mohammad Moshtaghioun; Seyed Mousa Mousavi Kouhi
Abstract
In order to investigate the effects of interaction between sodium chloride-induced salinity and organic fertilizer, vermicompost, on the vegetative growth and some mineral nutrieants in fennel (Foeniculum vulgare), a factorial experiment as a randomized complete block design with three replicates was ...
Read More
In order to investigate the effects of interaction between sodium chloride-induced salinity and organic fertilizer, vermicompost, on the vegetative growth and some mineral nutrieants in fennel (Foeniculum vulgare), a factorial experiment as a randomized complete block design with three replicates was conducted in the research greenhouse of Yazd University. Experimental treatments consisted of salinity levels of control (non-salty), 40, 80, and 120 mM NaCl, vermicompost levels of 0 and 5 volume/volume percent (two volumetric mixtures of vermicompost and soil including 0:100% and 5:95%), and fennel landraces of Urmia, Mashhad, Shiraz, Boushehr, and Isfahan. Sampling of plants was carried out 5 weeks after planting. Results showed that salinity stress significantly decreased dry weight and the length of shoot, leaf area, dry weight of root, concentration of potassium, calcium, zinc, and molybdenum of shoot, and concentration of potassium and calcium in root. Under both stress and non-stress conditions, all of these traits were significanly increased with application of vermicompost. Concentration of sodium in root and shoot was also significantly increased under salinity stress, while it sharply decreased in the presence of vermicompost. Based on the results, among the investigated fennel landraces, Mashhad landrace was the most sensitive to salinity stress. Shiraz landrace is recommended for cultivation in non-stress, and salt-affected conditions, and also under vermicompost application. It seems that the use of vermicompost can reduce the adverse effects of salinity on fennel growth.
Majid Alihouri; A T; H D
Abstract
Growing salinity tolerant plants is a suitable way for usage of saline water resources. This research was carried out for identification of salinity tolerant ber rootstocks. The experiment was conducted using factorial arrangement based on randomized complete design in three replications. The ...
Read More
Growing salinity tolerant plants is a suitable way for usage of saline water resources. This research was carried out for identification of salinity tolerant ber rootstocks. The experiment was conducted using factorial arrangement based on randomized complete design in three replications. The treatments were four irrigation water salinities of 0.3, 3, 6, and 9 dS/m and three ber (Ziziphus spp.) species including Ziziphus mauritiana, Ziziphus nummularia, and Ziziphus spina-christi. The results showed that water salinity treatments had significant effect (P< 5%) on plant height, leaf number, leaf chlorophyll, stem diameter and leaf N, Na+ and Ca2+concentrations. There was significant (P< 5%) difference between ber species on plant vegetative attributes and leaf N and Na contents. Futhermore, interaction of water salinity and ber species had significant effect (P< 5%) on plant vegetative characters and leaf N, Na and Ca content. With increasing irrigation water salinity to 9 dS/m, the leaf number and stem diameter had significant decrease, while leaf Na+ concentration increased significantly. When irrigation water salinity increased from 3 dS/m to 6 and 9 dS/m, the plant leaf number decreased by 3.8-8.4% and 25.1-41.3 percent, respectively, while stem diameter was reduced by 1.7-28.1% and 30.0-77.9 percent, respectively. Leaf Na+ concentration increased by 1.67-2.73 and 1.64-3.36 times with increasing irrigation water salinity from 3 dS/m to 6 and 9 dS/m, respectively. Therefore, saline water resources could be used in irrigation of ber seedlings.
s r; a s
Abstract
The technology of magnetic water has been widely studied and adopted in the field of agriculture in many countries. The objective of the present study was to investigate the effect of magnetic water on germination and vegetative growth of two varieties of tomato (lycopercicum esculentum) seeds. A factorial ...
Read More
The technology of magnetic water has been widely studied and adopted in the field of agriculture in many countries. The objective of the present study was to investigate the effect of magnetic water on germination and vegetative growth of two varieties of tomato (lycopercicum esculentum) seeds. A factorial experiment in completely randomized design was carried out using three replications, in 2014. Based on the results, seeds irrigated with magnetic water exhibited marked increases in rate of germination, vegetative growth, vigor index, root length, seedling length, seedling fresh weight and chemical constituents i.e. photosynthetic pigments (chlorophyll a and b and carotenoids), over the control. Percentage of germination for seeds irrigated with magnetized water was 94.6 for the two varieties, while for the control it was 90 and 93 in Sunseed and Sudin, respectively. Results indicated that irrigation with magnetized water induced positive significant effect on all studied parameters. It appears that utilization of magnetized water may lead to improved quantity and quality of tomato production.
a yadollahi; n teymouri; v abdousi; s sarikhani
Abstract
Considering the arid and semi-arid conditions in Iran, with average rainfall of less than 247mm, development of rainfed orchards has an important role in sustainable development of agriculture. To establish rainfed orchards in Iran in spite of deficiency in water resources, it is necessary to select ...
Read More
Considering the arid and semi-arid conditions in Iran, with average rainfall of less than 247mm, development of rainfed orchards has an important role in sustainable development of agriculture. To establish rainfed orchards in Iran in spite of deficiency in water resources, it is necessary to select suitable plant species and methods of establishing new orchards. Therefore, this study was conducted to evaluate some almond cultivars (Shahrood 7, 10, and 12) and integration of microcatchments and Stockosorb Superabsorbent for establishing rainfed orchards during 2008-2010. The use of Superabsorbent with microcatchment increased relative moisture content of soil in both years. But, in the first year, there was no significant difference between microcatchment treatments with and without Superabsorbent, while both of them showed significant difference with the treatment of Superabsorbent without microcatchment. In the second year, the highest relative moisture content of soil was in microcatchment treatment with Superabsorbent, because of higher seasonal rainfall that caused more vegetative growth in the young almond trees in that treatment compared to the other treatments. Among the almond cultivars studied, Shahrood 7 and 12 seemed more resistant and adaptable to dry conditions than Shahrood 10 cultivar, because of their better vegetative characteristics.