Agriculture
Elnaz Zamani; Hooman Salari; Mokhtar Ghobadi
Abstract
AbstractWe studied the effects of foliar application of iron chelate on relative leaf water content, electrolyte leakage, leaf chlorophyll content, carotenoids content, leaf soluble sugars content and proline for saffron in Kermanshah (Iran). A two-year trial (2013–2015) was conducted in the factorial ...
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AbstractWe studied the effects of foliar application of iron chelate on relative leaf water content, electrolyte leakage, leaf chlorophyll content, carotenoids content, leaf soluble sugars content and proline for saffron in Kermanshah (Iran). A two-year trial (2013–2015) was conducted in the factorial experiment based on complete randomized design (CRD) in triplicates at the research farm of Razi University; Iran. The traits were studied in the second year of experiment. The foliar iron chelated was applied at the three considered times namely early vegetative (November), mid-vegetative (January), and the end of vegetative growth (March). The seven concentrations of iron chelate were considered i.e. zero (control), 500, 1000, 1500, 2000, 2500 and 3000 ppm. The results showed that chlorophyll a, total chlorophyll and electrolyte leakage were not influenced by the time of foliar application. However, carotenoids have been affected significantly by the time (p≤0.05) and the other traits were affected very significantly (p≤0.01). The concentration of iron solution and the interaction between two factors affected all the traits highly significant (p≤0.01) apart from the electrolyte leakage which was significantly influenced (p≤0.05). The foliar application of iron chelate with the concentration of 2000 ppm leads to increase for chlorophyll a, total chlorophyll, and carotenoids in comparison with control for 45.4%, 42.4%, and 63.6% at the mid-vegetative, respectively. Soluble sugar content also has been raised for the foliar application at the end of vegetative growth for 2000 ppm for 63.5% compare with control. Also, generally can be claimed that the foliar application of iron chelate at the mid-vegetative was more effective than others.
Hassan Feizi; Ali Hosseini; Hossein Sahabi; Ramin Nazarian
Abstract
For evaluation of response of flower and corm yield of saffron to nanobiologic fertilizer application methods in comparison to cow manure and chemical fertilizer an experiment was conducted in Shadmehr region as randomized complete block design with 10 treatments with four replication during two years ...
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For evaluation of response of flower and corm yield of saffron to nanobiologic fertilizer application methods in comparison to cow manure and chemical fertilizer an experiment was conducted in Shadmehr region as randomized complete block design with 10 treatments with four replication during two years (2014-2015 and 1015-2016). The treatments were 1. Corm inoculation with nanobiofertilizer (Bioumik product of Biozar company), 2. Corm inoculation+use in irrigation water, 3. Corm inoculation+ foliar application 4. Corm inoculation+ foliar application+use in irrigation water, 5. In irrigation water, 6. Foliar application 7. Use of chemical fertilizer (Urea, Ammonium phosphate and Potassium sulphate) 8. Use of cow manure 9. Use of chemical fertilizer +Use of cow manure and 10. Control. Studied traits were corm dry yield, flower dry yield, stigma dry and fresh yield and flower number. Based on result from third year the highest stigma dry yield (about 14 kg/ha) and flower number were achieved in Corm inoculation+ foliar application+use in irrigation water treatment (by 176 % increase in comparison to control) and the highest corm yield was seen in corm inoculation treatment (by 41 more than control). Results showed that the best method for corm improvement was corm inoculation with nanobiofertilizer and for flower improvement it is recommend to use of Corm inoculation+ foliar application+use in irrigation water.
Agriculture
Hasan Rivandi; Hamid Marvi; Matin Jami Moeini
Abstract
In order to investigate the effect of effective microorganism application method on saffron growth characteristics in the presence of chemical and organic fertilizers, a field experiment was conducted at Sheshtamad County during the growing season of 2013-2014. The experiment was carried out as split ...
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In order to investigate the effect of effective microorganism application method on saffron growth characteristics in the presence of chemical and organic fertilizers, a field experiment was conducted at Sheshtamad County during the growing season of 2013-2014. The experiment was carried out as split plot based on a randomized complete block design with three replications. The experimental factors included effective microorganisms (EM) application method as main plots (no application, soil application and foliar application of EM) and chemical and organic fertilizers application as subplots (no application, soil application of humic acid, soil application of 20, 20, 20+TE and soil application of humic acid + 20, 20, 20+TE). The results showed that soil and foliar application of EM had no significant effect on plant height, but it significantly increased corm number, corm yield, shoot dry weight and number of buds per corm. The average corm weight was reduced in response to soil and foliar application of EM. The highest corm number (220.33), corm yield (1023.33 g m-2) and shoot dry weight (43.02 g m-2) were obtained in soil application of EM treatment. The maximum number of buds per corm (8.68) and average corm weight (5.10 g) were observed in foliar application and no application of EM conditions, respectively. Application of 20, 20, 20+TE and combined application of humic acid and 20, 20, 20+TE increased corm number, corm yield, shoot dry weight and number of bud per corm compared to control and soil application of humic acid. Soil application of humic acid produced the highest average corm weight. Soil and foliar application of EM improved the response of saffron growth characteristics to organic and chemical fertilizers. According to the results, soil applications of EM and 20, 20, 20+TE are recommended to produce maximum corm yield in saffron.
