Naser Baghestani Meybodi; Hosein Arzani; Mohammad Taghi Zare; Jalal Abdollahi
Volume 11, Issue 2 , August 2019, , Pages 137-162
daryoush Ghorbanian
Volume 12, Issue 4 , August 2019, , Pages 484-497
Mehdi Najafi Ghiri; Alireza Mahmoudi; Shahrokh Askari; Esmaeil Farokhnejad
Volume 25, Issue 1 , April 2018, , Pages 170-182
Abstract
Halophytes may change different soil properties and nutrients availability by organic materials addition to soil and soil conservation against erosion agents. Destroying these lands and halophytes may have an undesirable effect on environment. To study the effects of physiographic position, plant variety ...
Read More
Halophytes may change different soil properties and nutrients availability by organic materials addition to soil and soil conservation against erosion agents. Destroying these lands and halophytes may have an undesirable effect on environment. To study the effects of physiographic position, plant variety and plant growth position (sole or under another plant) on soil properties of salt marshes, an investigation was carried out in Korsia region, Darab (Fars province). Soil samples were collected from the beneath of Tamarix aphylla and Salsola rigida (sole and under Tamarix) and between plants with triplicates in two different salt marshes with lowland and piedmont plain positions. Soil properties including particle size distribution, organic matter, pH, EC and equivalent calcium carbonates and nutrients availability including P, K, Fe, Mn, Cu and Zn were determined. Results indicated that lowland had more saline and heavier textured soil and shorter Tamarix aphylla as compared with piedmont plain. Tamarix aphylla increased organic matter, EC, P, K, Fe, Mn, Cu and Zn; however, it had no effect on soil texture and equivalent calcium carbonates. Salsola rigida increased organic matter and its effect on available Mn and Zn was more than other nutrients. Salsola rigida under short Tamarix aphylla did not change soil salinity; while Salsola rigida under long Tamarix aphylla decreased soil salinity. Generally, it seems that organic matter is the most important factor on different plant nutrients availability and soil fertility status of the soils studied. Organic matter affects mobility, precipitation or nutrient uptake by the effect on pH, chelating agent production, nutrient adsorption, and nutrient release due to decomposition and soil physical properties improvement.
Daryoush Ghorbanian; Mansour Ghodrati; Heidar Sharafieh; Moslem Mozafari; Amir Moslem
Volume 19, Issue 3 , December 2012, , Pages 443-456
Abstract
In this study, species of Salsola rigida, Seidlitzia rosmarinus, Atriplex canescens andAnabasis setifera were investigated to identify appropriate species for planting together withHaloxylon ammodendron. This research was aimed to use spaces among shrub species and toenhance the ecosystems in which H. ...
Read More
In this study, species of Salsola rigida, Seidlitzia rosmarinus, Atriplex canescens andAnabasis setifera were investigated to identify appropriate species for planting together withHaloxylon ammodendron. This research was aimed to use spaces among shrub species and toenhance the ecosystems in which H. Ammodendron species are distributed. The study wasperformed in a randomized complete blocks design with three replications and six treatments atresearch station of natural resources of Semnan. The measured traits were included annualgrowth (measuring the thickest branch, flowering branch and the length of horizontal branches),forage yield and seedling establishment. Results of analysis of variance showed that there wereno significant differences among blocks. A significant difference was observed for seedlingestablishment at 1% level of probability. High growth and canopy cover of H. ammodendronsignificantly differed with other species. A. setifera, S. rosmarinus and A.canescens wererespectively in the best position in term of number of sub-branches. This feature is important incontrolling erosion and resistance to grazing. H. ammodendron, S. rigida and S. rosmarinusshowed suitable condition in terms of forage yield. No significant differences were observed forseedling establishment. Maximum number of the established species were recorded forA.canescens ,S.rigida, N.schoberi, A.setifera, S.rosmarinus and H.ammodendron, respectively.
Ali Tavili; Mojtaba Janat rostami; Khadejeh Ebrahimi Dorcheh
Volume 16, Issue 3 , December 2009, , Pages 409-418
Abstract
According to importance of Salsola rigida in arid and semi arid regions, also due to Artemisia sieberi allelopathic property, this research was carried out to find whether or not Sa. rigida is sensitive against Ar. sieberi allelochemicals in germination stage when they are planting with together. For ...
Read More
According to importance of Salsola rigida in arid and semi arid regions, also due to Artemisia sieberi allelopathic property, this research was carried out to find whether or not Sa. rigida is sensitive against Ar. sieberi allelochemicals in germination stage when they are planting with together. For this purpose, Sa. rigida seeds were taken from Pakan Bazr Cooperation in Isfahan. Aerial parts of Ar. sieberi were gathered from Jafarieh region in Qom province, dried and powdered. They were mixed with distilled water in a ratio of 1:3 (one part Sa. rigida powder, 3 parts distilled water). Based on standard methods, extracts with different concentrations were prepared. Sa. rigida seeds were put in Petri dishes and watered with different concentrations of the prepared extracts. Experiment was done in a completely randomized design with 4 treatments (0, 25, 50 and 100 percent extractions) and 4 replications. Understudy germination properties were Final Germination percentage (FG), Rate of Germination (RG), Mean period of Final Germination (MPFG) and Percentage of Inhibition (PI). Duration of experiment was 13 days. Results based on statistical analysis revealed that there was significant difference between FG, MPFG, and PI under different extract concentrations effects (P<1%) while for RG difference was significant at 5% probability. Totally, it is concluded that Sa. rigida could be affected by Ar. sieberi allelopathic property in germination stage.
Daruosh Ghorbanian; Mohammad Jafari
Volume 14, Issue 1 , January 2007, , Pages 1-7
Abstract
In this study one site with good coverage of Salsola rigida species selected in desert region of Shahrood area. Four plots of 100 m2 were chosen in this site and two soil profiles were digged in each plot; one profile under Salsola rigida plants and another in the space between this species. Soil samples ...
Read More
In this study one site with good coverage of Salsola rigida species selected in desert region of Shahrood area. Four plots of 100 m2 were chosen in this site and two soil profiles were digged in each plot; one profile under Salsola rigida plants and another in the space between this species. Soil samples were collected from three depth of 10-25 cm, 10-25 cm and>25cm. For asessing elements of biomass and their effects on the soil, plant sample were analysed in laboratory. Results indicated that organic matter percentage as well as N, K and HCO3 increased significantly. An increase of Ec, Caco3 and Na are the main detrimental factors for expanding Salsola rigida species.