Zakiye Dastoori; Mohammad Farzam
Abstract
Ferula foetida is one of the important medicinal plants in the steppe rangelands of Iran. Applying effective methods for its establishment can be useful for reviving the ecosystems of arid areas and the economy of its indigenous people. Due to the fact that drought stress is one of the main limitations ...
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Ferula foetida is one of the important medicinal plants in the steppe rangelands of Iran. Applying effective methods for its establishment can be useful for reviving the ecosystems of arid areas and the economy of its indigenous people. Due to the fact that drought stress is one of the main limitations in the establishment of plants in arid and semi-arid regions, in this study the effects of various treatments were studied on seed germination and establishment of Ferula foetida seedlings, in the Kakhk Twin Watersheds, located in the south of Khorasan Razavi province, Gonabad city. Experiment included some soil moisture conservation treatments (stone shelter, superabsorbent, superabsorbent + stone shelter or control) and seed treatments (prechilling or control), with 30 replicates for each treatment. Superabsorbent + sand shelters and sand shelters alone, reduced temperature and increased soil moisture. Moisture conservation treatments led to higher number of seedling emergence and survival and higher seedling height than those of control. Among the moisture conservation treatments, superabsorbent + stone shelter performed better, especially for the prechilled seedlings. According to the our results, superabsorbents and stone shelters can improve the production and productivity of Ferula foetida, especially during the drought times. We also suggest prechilling treatments to overcome the dormancy of Ferula foetida seeds.
somaie dehdary; zohreh kuhansani; fatemeh shojaee; ruhangiz kazemi
Abstract
To evaluate the effect of zeolite on the growth of plants in drought conditions. Cymbopogonolivieri, Medicago sativa, Medicagoscutellata in three zeolite levels (2 g, 4 g and zero in a kilogram potting soil) with 15 repetitions was considered. After ensuring the germination of plants, 7-day irrigation ...
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To evaluate the effect of zeolite on the growth of plants in drought conditions. Cymbopogonolivieri, Medicago sativa, Medicagoscutellata in three zeolite levels (2 g, 4 g and zero in a kilogram potting soil) with 15 repetitions was considered. After ensuring the germination of plants, 7-day irrigation tension was applied to them. It was found out that following the first tension, the effect of zeolite in improving viability and mitigation of drought tension will appear and it is observed that in 20% and 40% Zeolite treatments, the percentage of viability and germination of plants is much more in comparison with control group. Gradually, following applying tensions, the average number of remaining saplings decreased in control treatments. The highest percentage of residual base, the whole plant length, stem fresh weight, and dry weight of zeolite was observed in Cymbopogonolivieri in the treatment of 40%. More traits such as stem length, fresh weight, dry weight and fresh weight roots in the treatment of 40% zeolite in Medicagoscutellata species improved. The highest root weight was observed in Medicago sativa using 40% zeolite. No significant difference was detected in terms of wet root length in three plant species.
