K. Mojtabavi; M.T Darzi
Abstract
In order to study the effects of organic and bio-fertilizers application on flower yield, yield components and essential oil quality of marigold (Calendula officinalis L.), an experiment was conducted as randomized complete blocks design with six treatments and three replications at Sohanak in Tehran ...
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In order to study the effects of organic and bio-fertilizers application on flower yield, yield components and essential oil quality of marigold (Calendula officinalis L.), an experiment was conducted as randomized complete blocks design with six treatments and three replications at Sohanak in Tehran of Iran in 2014. The treatments were 6 t/ha vermicompost, 12 t/ha vermicompost, 18 t/ha vermicompost, 6 t/ha vermicompost + nitroxin, 12 t/ha vermicompost + nitroxin and 18 t/ha vermicompost + nitroxin. The results showed that treatments had significant effects on studied traits (except essential oil content), as the highest flower no./plant, dry weight of flower, dried yield of flower, essential oil yield and α-cadinol percent in essential oil in treatment of application of 6 t/ha vermicompost and the highest gamma cadinene percent and muurolene in essential oil in treatment of integrated application of 6 t/ha vermicompost and nitroxin were obtained. Also, the highest dry weight of plant and viridiflorene percent in essential oil in treatment of application of 12 t/ha vermicompost and the highest cadinene percent in essential oil in treatment of application of 18 t/ha vermicompost were obtained. Generally, the highest flower and essential oil yields and α-cadinol percent in essential oil with application of 6 t/ha vermicompost were obtained.
A. Kheiry; M. Arghavani; M. Khastoo
Abstract
The present study aimed to investigate the effect of application of organic fertilizers on the yield of medicinal plant, calendula (Calendula officinalis L.). The experiment was conducted in a randomized complete block design with 10 treatments and 3 replications in the research farm of Zanjan University. ...
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The present study aimed to investigate the effect of application of organic fertilizers on the yield of medicinal plant, calendula (Calendula officinalis L.). The experiment was conducted in a randomized complete block design with 10 treatments and 3 replications in the research farm of Zanjan University. Treatments included cattle manure, poultry manure, and vermicompost, each at three levels (5, 10, and 15 tons per hectare) and control (without fertilizer). The measured traits were the thousand seed weight, number of capitules per plant, leaf area, plant height, petal dry weight, capitule diameter, chlorophyll content index, flavonoids, carotenoids, and essential oil percentage. Data were analyzed by SAS software, and mean comparisons was performed by Duncan's test. The results showed significant effects of fertilizer on thousand seed weight, capitule number per plant, leaf area, carotenoids, and essential oil percentage at p≤0.01, and plant height, petal dry weight, and flavonoid at p≤0.05. The type of fertilizer had no significant effect on capitule diameter and leaf chlorophyll content. Overall, the results showed that using organic fertilizers had favorable impact on yield, growth characteristics, and active ingredients content of Calendula.
F. Eslami Khalili; H. Pirdashti; M.A. Bahmanyar; F. Taghavi Ghsemkheili
Abstract
In order to evaluate the effects of enriched and non-enriched organic and chemical fertilizers on chemical properties of soil and some nutrient concentrations in pot marigold (Calendula officinalis L.), a pot experiment was conducted based on randomized complete block design with 11 treatments and 3 ...
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In order to evaluate the effects of enriched and non-enriched organic and chemical fertilizers on chemical properties of soil and some nutrient concentrations in pot marigold (Calendula officinalis L.), a pot experiment was conducted based on randomized complete block design with 11 treatments and 3 replications in 2010. Treatments were included control (without organic or chemical fertilizer), chemical fertilizer (CF) as the rate of 80 kg urea ha-1, 100 kg ha-1 super phosphate triple and 80 kg potassium sulfate ha-1, compost, pasteurized compost (bagas + perlit), sheep manure (10 ton ha-1 alone or plus ½ and ¼ CF). Results showed that fertilizer treatments had significant effect on all treatments except leaf potassium. Accordingly, leaf and flower dry weight were maximum in 10 ton ha-1 pasteurized compost and farmyard manures plus ½ and ¼ CF. The highest phosphorous concentration in flower and leaf (0.46 and 0.17 percent, respectively) was recorded when 10 ton ha-1 compost plus ¼ CF was applied. Furthermore, maximum Cu concentration in both flower and leaf (32.60 and 26.25 mg L-1, respectively) were belonged to either 10 ton ha-1 compost plus ½ CF or 10 ton ha-1 farmyard manure while 10 ton ha-1 farmyard manure plus ½ CF had not significant effect on Mn content in flower and leaf. The highest Zn in leaf of marigold was observed in 10 ton ha-1 compost up to 1.2 times compared to control.
