Univrsity of Tehran Press Iranian Journal of Field Crop Science 2008-4811 52 4 2021 12 22 Effect of irrigation regimes and arbuscular mycorrhizal fungus on some agronomic traits of saffron (Crocus sativus L.) in different planting media Effect of irrigation regimes and arbuscular mycorrhizal fungus on some agronomic traits of saffron (Crocus sativus L.) in different planting media 115 126 84702 10.22059/ijfcs.2020.307534.654743 FA Maryam Habibi Faculty of Crop Sciences, Sari University of Agriculture and Natural Resources. Iran Faezeh Zaefarian Department of Agronomy, Sari Agricultural sciences and Natural Resourses, Iran. 0000-0002-2601-8909 Farhad Rejali Soil and Water Research Institute, Agricultural, Research, Education and Extension Organization, Karaj, Iran. Nadali Bagheri Department of Plant Breeding and Biotechnology, Sari University of Agricultural Sciences and Natural Resources, Iran. Journal Article 2020 09 06 In order to evaluate the effect of two isolates of arbuscular mycorrhizal fungus in saffron rhizosphere on some of saffron agronomic traits under different irrigation regimes, an experiment was conducted as split plots factorial in a randomized completely design with three replications at the Institute of Soil and Water Research, Karaj, Iran. The treatments consisted of three irrigation regimes (normal irrigation (control), irrigation cut off at the beginning of the growing season and at the beginning and middle of the growing season) as the main factors, three organic planting media (no organic fertilizer, vermicompost (20 t.ha-1) and biochar (10 t.ha-1) and arbuscular mycorrhizal fungal in three levels (no application, isolate a and isolate b) as a sub factors. Molecular findings indicated that, both strains isolated from saffron rhizosphere belonged to Rhizophagus irregularis. The results showed that the interaction effect of water stress and planting media on economic yield and also, the interaction effect of water stress, planting media and R. irregularis fungus on leaf number, fresh and dry weights and corm weight and diameter per pot were significant. The highest yield (0.062 g/pot) belonged to the full irrigation with biochar. Meanwhile, the highest leaves number (180), fresh and dry weights (90.2 and 23.96 g, respectively) and corm weight (7.67 g) and diameter (2.38 cm) per pot were obtained at full irrigation with biochar and Rhizophagus irregularis isolate b. In general, the use of biochar fertilizer with Rhizophagus irregularis isolate b had the greatest effect on the measured traits of saffron in different irrigation regimes. In order to evaluate the effect of two isolates of arbuscular mycorrhizal fungus in saffron rhizosphere on some of saffron agronomic traits under different irrigation regimes, an experiment was conducted as split plots factorial in a randomized completely design with three replications at the Institute of Soil and Water Research, Karaj, Iran. The treatments consisted of three irrigation regimes (normal irrigation (control), irrigation cut off at the beginning of the growing season and at the beginning and middle of the growing season) as the main factors, three organic planting media (no organic fertilizer, vermicompost (20 t.ha-1) and biochar (10 t.ha-1) and arbuscular mycorrhizal fungal in three levels (no application, isolate a and isolate b) as a sub factors. Molecular findings indicated that, both strains isolated from saffron rhizosphere belonged to Rhizophagus irregularis. The results showed that the interaction effect of water stress and planting media on economic yield and also, the interaction effect of water stress, planting media and R. irregularis fungus on leaf number, fresh and dry weights and corm weight and diameter per pot were significant. The highest yield (0.062 g/pot) belonged to the full irrigation with biochar. Meanwhile, the highest leaves number (180), fresh and dry weights (90.2 and 23.96 g, respectively) and corm weight (7.67 g) and diameter (2.38 cm) per pot were obtained at full irrigation with biochar and Rhizophagus irregularis isolate b. In general, the use of biochar fertilizer with Rhizophagus irregularis isolate b had the greatest effect on the measured traits of saffron in different irrigation regimes.

https://ijfcs.ut.ac.ir/article_84702_59b7237df7a09f847c5348517940b3fd.pdf