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Paper Information

Journal:   IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH   winter 2019 , Volume 25 , Number 4 (73)#l00544; Page(s) 761 To 769.

Investigating the possibility of the establishment of the two species of the genus Atriplex (Atriplex canescens and Atriplex verrocifera( and comparing their forage production in saline and low yield soils

* Forests and Rangelands Research Department, Semnan Agricultural and Natural Resources, Research and Education Center (AREEO), Semnan, Iran
Use of saline and low yield soils for forage production is an important step towards optimal efficacy of low-quality water and soil resources from agricultural point of view. Atriplex canescens and Atriplex verrocifera as drought and salinity tolerent species, are able to produce forage in saline and low yield soils. To investigate the possibility of establishing and measuring the amount of forage production in saline and low yield soils, and determining the appropriate planting method, two salinity areas (salinity up to 20 ds / m and salinity up to 40 ds/m) were first selected through soil testing. Then in each region, 45 seedlings of each mentioned species were planted in three replications. The results of the present study showed that the use of Atriplex canescens and Atriplex verrocifera for establishment and forage production is possible in in areas with high salinity (up to 40 ds/m). Analysis of variance of canopy growth and annual production of the mentioned species showed that in saline lands with a maximum of 40 ds/m, the growth rate of the first year of At. verrosifera was more than At. canescens. But in the region with low salinity, At. canescens growth was more than the other species. The production amount of established species shows that the production of At. canescens is more than At. verrusifera. But this difference in salt area is minimized. Therefore, the effect of salinity on the production of At. canescens is tangible and effective. But the production rate of At. verrucifera is more in areas with low salinity. So, this species has more resistance and tolerance.
Keyword(s): Atriplex,forage production,drylands,saline soils,Semnan province
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