| Titles |
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English :
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Effct of nitrogen fertilization level on growth, yield, seed and oil quality of three canola cultivars
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Arabic :
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تأثير التسميد النيتروجيني على النمو، المحصول وصفات الجودة للبذرة والزيت لثلاث أصناف من الكانولا
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| Abstract |
Field and laboratory studies were conducted in the two successive seasons of 2001/2002 and 2002/2003 in a dessert soil at the Assiut Research Station From ( A.R.C.) and Food Sci. Dept., Fac Agric., Minia University . The aim of this study was to evaluate the effect of N-levels ( 30 and 45 kg N/fed) on growth, yield and quality parameters of 3 canola cultivars, being Serw4. Serw6 and line 46. Chemical composition of the seeds, physico-chemical characteristics and fatty acids composition of oil were also evaluated to Know its nutritional and technological properties.
The obtained results showed significant cultivar differences regarding plant height, of first primary branch and pod number/plant in the first season, as well as days to 50% flowering, number of seeds/pod and seed yield ( kg/fed) in the two growing season, in favor of line 46 compared with both Serw4 and Serw6 cultivars. Also, the application of 45 kg N/fed increased markedly all the studied characters in both growing seasons except the height of 1st primary branch in the second and the seed yield/plant in the two seasons. The variety line 46 exceeded the other varieties in almost all the studied characteristics.
Chemical composition of canola seed showed significant variations for moisture, carbohydrate and ash content as well as oil yield ( kg/fed.) by the different varieties and nitrogen levels, while the crude protein, fibers and oil contents were affected significantly by the nitrogen ferilizer levels only. Crude protein% was ranged from 24.88 to 27.19 and crude oil % from 42.05 to 43.51% . The highest oil kg/fed ( 571.9) was found for the variety line 46 at 45 kg. nitrogen/fed.
The date revealed that there were no significant variations concerning some physical and chemical characteristics i.e. refractive index, specific gravity and saponification value for all studied oil samples. On the contrary the iodine value, peroxide value, T.BA-value and free fatty acids% showed significant variations between the different canola varieties. The fatty acids profile of studied canola oils illustrated that the oleic acid represented about 57.43%, the essential fatty acids ( linoleci & linolenic ) were about 30.0% and total saturated fatty acids still under 9.0%. It means that the studied low erucic (about 0.4%) canola oils could be considered as a good edible vegetable oils
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| Publication year |
2003
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| Pages |
298-315
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| Availability location |
معهد بحوث المحاصيل الحقلية
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| Availability number |
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| Organization Name |
Field Crops Research Institute (FCRI)
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| City |
القاهرة
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| serial title |
المجلة المصرية للعلوم التطبيقية
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| ISSN |
1110-1571
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| Department |
Oil Crops Research
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| Author(s) from ARC |
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| External authors (outside ARC) |
حمدي محمد عباس
قسم علوم الأغذية - جامعة المنيا
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AGROVOC
TERMS |
Nitrogen fertilizers.
Quality.
Rapeseed.
Yield components.
Yields.
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| Publication Type |
Journal
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