maryam habibi; faeze zaefarian; farhad rejali; nadali bagheri
Abstract
In order to investigate the effect of Arbuscular mycorrhizal fungi in Saffron rhizosphere on yield and nutrient uptake, a study has been conducted as split plot factorial based on a completely randomized design with three replications in the institute of Soil and Water research in Karaj, during 2017-2020. ...
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In order to investigate the effect of Arbuscular mycorrhizal fungi in Saffron rhizosphere on yield and nutrient uptake, a study has been conducted as split plot factorial based on a completely randomized design with three replications in the institute of Soil and Water research in Karaj, during 2017-2020. The treatment is consisted of irrigation regime as the main factor in three levels (complete irrigation as control, water interruption at the beginning of the growing season (mild restriction water), and water interruption at the beginning and in the middle of the growing season (severe restriction water)), sowing media in three levels (no organic fertilizer, vermicompost (20 ton ha-1), and biochar (10 ton ha-1) and Arbuscular mycorrhizal fungal in three levels (no application, isolate a, and isolate b) as the subfactor. Based on the molecular findings, both isolates, isolated from saffron rhizosphere, belong to Rhizophagus irregularis. Results from this study show that the highest fresh yield of flowers, i.e. phosphorus and potassium in the leaves of 7.76 g per pot, 1032.4.4 and 24876.8 mg kg-1, respectively, belongs to the complete irrigation× biochar× strain b treatment. Complete irrigation× vermicompost× strain b treatment has had the highest percentage of nitrogen (1.757) in the leaves. The highest fresh and dried yield of stigma (0.358 and 0.062 gr per pot, respectively) has been observed in complete irrigation × biochar treatment. Identification of native mycorrhizal fungi and its production as well as the use of organic fertilizers can play an important role in sustainable production of this plant.
Faezeh Zaefarian; Vahid Akbarpour; Maryam Habibi; Mohammad Kaveh
Abstract
In order to investigate the effect of biochar and biological fertilizer on photosynthetic pigments, yield and nutrient content of peppermint (Mentha piperita L.), an experiment was conducted as factorial based on a randomized complete block design in three replications at Sari Agricultural Sciences and ...
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In order to investigate the effect of biochar and biological fertilizer on photosynthetic pigments, yield and nutrient content of peppermint (Mentha piperita L.), an experiment was conducted as factorial based on a randomized complete block design in three replications at Sari Agricultural Sciences and Natural Resources University in 2017. Treatment consisted biochar on two level (0 and 10 ton ha-1) and organic and biological fertilizers on five level (no fertilizer (F0), vermicompost (10 ton ha-1) (F1), Pseudomonas fluorescens (F2), Azotobacter (F3) and Arbuscular mycorrhizal (Glomus mosseae, G. intradicces and G. etunicatum) (F4)). The results of this study showed that the main effect of biochar and bio-fertilizer had a significant effect on leaf, stem and total fresh weight of the plant. In addition, the use of biochar and also mycorrhiza treatment increased average of leaf fresh weight (294.73 and 306.8 g.m-2), stem fresh weight (366.73 and 361.15 g.m-2) and total fresh weight (661.46 and 667.95 g.m-2). The interaction effect of treatments had a significant effect on leaf, stem and total dry weight. The highest rate of these traits was observed in biochar treatment with mycorrhiza, which had no significant effect with by a combination of vermicompost + biochar. Therefore, with respect to the production of medicinal plants in the low-input cropping systems, environmental protection, and achievement of sustainable agricultural to improve plant growth and photosynthesis of peppermint application of biochar + mycorrhiz and biochar + vermicompost treatment is recommended.