Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.)
In order to study the effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean, an experiment was conducted at Experimental station, College of Agriculture, Ferdowsi University of Mashhad, Iran in years 2004-2005. The experimental treatments co...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | fas |
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Ferdowsi University of Mashhad
2009-06-01
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| Series: | پژوهشهای زراعی ایران |
| Online Access: | https://jcesc.um.ac.ir/index.php/arable/article/view/2437 |
| _version_ | 1818677160139816960 |
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| author | parviz rezvani moghadam ZINAT boromand reza zade ali asghar mohamad abadi ali sharif |
| author_facet | parviz rezvani moghadam ZINAT boromand reza zade ali asghar mohamad abadi ali sharif |
| author_sort | parviz rezvani moghadam |
| collection | DOAJ |
| description | In order to study the effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean, an experiment was conducted at Experimental station, College of Agriculture, Ferdowsi University of Mashhad, Iran in years 2004-2005. The experimental treatments comprised all combinations of four sowing dates (11 April, 25 April, 8 May and 22 May) and three different fertilizers (cow manure (30 tons/ha), compost (30 tons/ha), chemical fertilizers (100 kg/ha N and 250 kg/ha of super phosphate) and no fertilizer as control. Different characteristics such as plant height, main inflorescence height, number of inflorescence per plant, number of secondary stems per plant, number of capsules per plant, number of grain per plant, grain weight per plant, 100 seed weight, grain yield, oil percentage and oil yield were recorded. A factorial arrangement based on a randomized complete block design with three replications was used. The results showed by delaying sowing date grain yield, seed oil percentage and oil yield were decreased, but there was no significant differences between 25 April, 8 May and 22 May sowing dates. Harvest index and 100 seed weight did not affect by neither sowing dates nor fertilizer treatments. The highest number of branches per plant, number of fertile inflorescences per plant, number of fertile capsules per plant, number of grain per plant, grain weight per plant and biological yield were obtained at 8 May sowing date on chemical fertilizer. Percentage of seed oil, grain yield and oil yield was higher at the first sowing date (11 April) in compost and chemical fertilizer treatments.
Keywords: Castor bean, sowing date, fertilizer, grain yield, oil percentage. |
| first_indexed | 2024-12-17T08:54:57Z |
| format | Article |
| id | doaj.art-943ed71f8afb4695b201e1dc83cb334b |
| institution | Directory Open Access Journal |
| issn | 2008-1472 2423-3978 |
| language | fas |
| last_indexed | 2024-12-17T08:54:57Z |
| publishDate | 2009-06-01 |
| publisher | Ferdowsi University of Mashhad |
| record_format | Article |
| series | پژوهشهای زراعی ایران |
| spelling | doaj.art-943ed71f8afb4695b201e1dc83cb334b2022-12-21T21:55:59ZfasFerdowsi University of Mashhadپژوهشهای زراعی ایران2008-14722423-39782009-06-016230331410.22067/gsc.v6i2.24371205Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.)parviz rezvani moghadamZINAT boromand reza zadeali asghar mohamad abadiali sharifIn order to study the effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean, an experiment was conducted at Experimental station, College of Agriculture, Ferdowsi University of Mashhad, Iran in years 2004-2005. The experimental treatments comprised all combinations of four sowing dates (11 April, 25 April, 8 May and 22 May) and three different fertilizers (cow manure (30 tons/ha), compost (30 tons/ha), chemical fertilizers (100 kg/ha N and 250 kg/ha of super phosphate) and no fertilizer as control. Different characteristics such as plant height, main inflorescence height, number of inflorescence per plant, number of secondary stems per plant, number of capsules per plant, number of grain per plant, grain weight per plant, 100 seed weight, grain yield, oil percentage and oil yield were recorded. A factorial arrangement based on a randomized complete block design with three replications was used. The results showed by delaying sowing date grain yield, seed oil percentage and oil yield were decreased, but there was no significant differences between 25 April, 8 May and 22 May sowing dates. Harvest index and 100 seed weight did not affect by neither sowing dates nor fertilizer treatments. The highest number of branches per plant, number of fertile inflorescences per plant, number of fertile capsules per plant, number of grain per plant, grain weight per plant and biological yield were obtained at 8 May sowing date on chemical fertilizer. Percentage of seed oil, grain yield and oil yield was higher at the first sowing date (11 April) in compost and chemical fertilizer treatments. Keywords: Castor bean, sowing date, fertilizer, grain yield, oil percentage.https://jcesc.um.ac.ir/index.php/arable/article/view/2437 |
| spellingShingle | parviz rezvani moghadam ZINAT boromand reza zade ali asghar mohamad abadi ali sharif Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) پژوهشهای زراعی ایران |
| title | Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) |
| title_full | Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) |
| title_fullStr | Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) |
| title_full_unstemmed | Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) |
| title_short | Effects of sowing dates and different fertilizers on yield, yield components, and oil percentage of castor bean (Ricinus communis L.) |
| title_sort | effects of sowing dates and different fertilizers on yield yield components and oil percentage of castor bean ricinus communis l |
| url | https://jcesc.um.ac.ir/index.php/arable/article/view/2437 |
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