Abdolshakoor Raissi; Fatemeh Nosrati; Hossein piri
Abstract
This study aims at investigating the effect of organic, biological, and chemical fertilizers on some quantitative and qualitative traits of local mass of Iranshahr Isabgol, as a medicinal plant during 2018-2019 crop year in a randomized complete block design with 6 treatments and 4 replications in Iranshahr. ...
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This study aims at investigating the effect of organic, biological, and chemical fertilizers on some quantitative and qualitative traits of local mass of Iranshahr Isabgol, as a medicinal plant during 2018-2019 crop year in a randomized complete block design with 6 treatments and 4 replications in Iranshahr. Fertilizer treatments are no fertilizer application (control), Phosphate Barvar 2 biofertilizer, Phosphate Barvar 3 biofertilizer, Cow manure, Superphosphate triple, and Vermicompost. The results show that fertilizers’ effect on most traits have been significant at the 1% probabilify level. The effect of fertilizer treatments on plant Height and Carbohydrates has not been significant but it has been considerable on Inflation index and Greenness index at 5% probability level. Maximum number of tillers per plant, number of spikes, spike length, fresh weight of plant, swelling index, Carbohydrate, Seed Nitrogen, Seed Potassium, and Greenness index aree obtained under the influence of manure, and traits including root length, plant height, number of seeds per spike, dry weight Plant, 1000-seed weight, plant yield, yield per hectare, Mucilage, Protein, Chlorophyll a, Chlorophyll b, and Total chlorophyll are obtained under the influence of vermicompost. Vermicompost treatment increases grain yield and total chlorophyll by 46.56% and 32.76%, respectively, compared to the control. Also, control and Phosphate Barvar 2 biofertilizer have had the highest swelling and the highest percentage of Seed Phosphorus, respectively. In general, it is concluded that vermicompost has a greater effect on most quantitative and qualitative traits of Isabgol, and its use is recommended.
Fazileh Dahie-Zehi; Mahmood Ramroudi; Abdolshakor Raissi
Abstract
In order to investigate the effect of drought stress on some morphological traits, yield, yield components, and oil percentage of sesame genotypes, an experiment has been conducted in form of split plots in a randomized complete block design with three replications during 2018 at the Research Farm of ...
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In order to investigate the effect of drought stress on some morphological traits, yield, yield components, and oil percentage of sesame genotypes, an experiment has been conducted in form of split plots in a randomized complete block design with three replications during 2018 at the Research Farm of Velayat University, Iranshahr. Drought stress factor includes normal irrigation (based on 100 mm evaporation from Class A evaporation pan) and drought stress (based on 200 mm evaporation from Class A evaporation pan) as the main factor, while sesame cultivars, including Dashtestan 2 and 5, Yelovait, Jiroft13, Iandraces of Dom Siah, and Darab1 have been the subfactor. Results show that drought stress significantly reduces plant height, number of branch and capsule per plant, number of seed per capsule and seed, biological yield, and oil yield and percentage. The increase in seed yield under normal irrigation conditions has been 28.67%, compared to drought stress conditions. Among all cultivars, Darab-1 has had the highest seed and oil yield in comparison with other cultivars under both irrigation conditions; therefore, this cultivar will be suitable for cultivation in Iranshahr. The correlation results show that seed yield has had a positive and significant correlation with the number of capsules per plant, number of seed per capsule, biological yield, and 1000-seed weight, with the highest correlation being related to seed and oil yield.