Effect of Nitrogen on Yield and Oil Quality of Sunflower (&amp;lt;i&amp;gt;Helianthus Annuus&amp;lt;/i&amp;gt; L.) Hybrids under Sub Humid Conditions of Pakistan

Nasim, Wajid; Ahmad, Ashfaq; Bano, Asghari; Olatinwo, Rabiu; Usman, Muhammad; Khaliq, Tasneem; Wajid, Aftab; Hammad, Hafiz Mohkum; Mubeen, Muhammad; Hussain, Muzzammil

doi:10.4236/ajps.2012.32029

Cited by 47 publications

(36 citation statements)

References 7 publications

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“…Results were similar in 2011. These results are consistent with those of Abdel-Sabour and Abo El-Seoud (1996), Nanjundappa et al (2001), Munir et al (2007), and Nasim et al (2012), who observed decreases in achene oil percentages with increased N application. Any two means not sharing a letter are significantly different at 5% level of probability (least significant difference LSD); NS: non significant.…”

Section: Achene Oil Contents (%)supporting

confidence: 92%

Effect of nitrogen on achene protein, oil, fatty acid profile, and yield of sunflower hybrids

Ali

Ullah

2012

Chilean J. Agric. Res.

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Seed yield and achene oil yield are the main determinants for N application rates rather than seed composition. Nitrogen plays a critical role in producing unsaturated fatty acids (oleic and linoleic acids), which are the main factors determining sunflower oil quality (Helianthus annuus L.). Studies were conducted on the effect of N fertilization on seed yield, achene oil yield, and quality parameters of sunflower hybrids for two successive years (2010 and 2011) in a split plot arrangement under a randomized complete block design. The hybrids and N levels (0, 75, 150, and 225 kg ha -1 ) were allotted in main and sub-plots, respectively. Increasing N levels resulted in steady increases in yield, protein contents and linoleic acid, whereas oil contents and percentage of oleic acid responded negatively during both years. At the same time, crop oil yield was positively related to increased N supply with higher achene yield (AY). Palmitic acid varied from 5.27 to 6.42 % and stearic acid ranged from 2.27 to 2.95%. Hybrid S-278 exhibited significantly (P < 0.05) higher AY (3380 kg ha -1 ), oil content (42.11%) than Hysun-33 (2968 kg ha -1 and 40.75%, respectively), while the opposite was true for protein content. Oil yield varied in response to N fertilizer, with a range of 34 to 37% providing the best quality traits in both seasons.

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Section: Achene Oil Contents (%)supporting

confidence: 92%

Effect of nitrogen on achene protein, oil, fatty acid profile, and yield of sunflower hybrids

Ali

Ullah

2012

Chilean J. Agric. Res.

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“…Singh and Quadri (1984) and Sharma and Gaur (1988) have also reported that decreases in oil content (%) in response to high levels of N was due to the presence of more impurities. Protein synthesis is wholly dependent on the amount of N fertilizer available for plant use (Nasim et al, 2012).The application of N fertilizer also increases protein concentration regardless of the irrigation regime used (Jalilian et al, 2012).…”

Section: Correlation Among Crude Fat Content Protein and Fatty Acidmentioning

confidence: 99%

The Quality of Sunflower Seed Oil Changes in Response to Nitrogen Fertilizer

Shi

Zhu

et al. 2017

Agronomy Journal

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Core Ideas Topdressing N increase the content of crude fat and linoleic acid in sunflower seeds. More topdressing N reduces the content of protein, oleic acid, and palmitic acid. Crude fat content significantly correlated with protein content in sunflower seeds. Sunflower (Helianthus annuus L.) has emerged as a very important crop in China due to the economic value of vegetable oil production. A 2‐yr field experiment was conducted in 2013 and 2014 to determine the effect of different N fertilizer application levels on the oil quality of a sunflower hybrid Kang Di T562 grown in the Hetao irrigation district, a sub‐arid region in China. The effects of N fertilizer were evaluated for three characteristics of oil from sunflower seeds: crude fat content (CFC), protein content, and fatty acid composition. The results showed that N fertilizer application had a significant effect on CFC, protein content, and fatty acid composition (oleic acid, linoleic acid, palmitic acid, stearic acid). When basic N fertilizer (68 kg ha−1) was used, subsequent topdressing N applications at the end of budding promoted the synthesis of protein, palmitic acid, and oleic acid in the oil of sunflower seeds, but decreased the CFC and linoleic acid content. There was a significant negative correlation between CFC and protein content (P ≤ 0.05) and between oleic acid and linoleic acid (P ≤ 0.01) in oil from sunflower seeds. There were positive and negative correlations among the main quality indices of sunflower seed. To increase the content of crude fat and linoleic acid in the oil of sunflower seeds, topdressing should not be used, or its use should be reduced, although this could reduce the content of protein, oleic acid, and palmitic acid.

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“…Application of organic fertilizer significantly (P 0.05) increased oil and protein contents in both early and late sown sunflower, except protein content of late sown sunflower. Nasim et al (2012a) also reported optimum oil content when nitrogen was applied at 60 kg/ha and a decline as N increased to 240 kgN/ha. A significant (P 0.05) high protein content of 29.71%) was reported when N was applied at the rate of 150 kg/ha in Moldova (Yasin et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Seed Yield and Quality of Sunflower (Helianthus annuus L.) as Influenced by Staggered Sowing and Organic Fertilizer Application in the Humid Tropics

Oshundiya

Olowe

Sowemimo

et al. 2014

Helia

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Two field experiments were conducted on the Teaching and Research Farm of the Federal University of Agriculture, Abeokuta (7°15′ N, 3°25′ E, altitude 140 m above sea level) in south western Nigeria between June and November, 2012 to evaluate the performance of two sunflower varieties (SAMSUN-3 and Funtua) as affected by different sowing dates and organic fertilizer application. The experiment was laid out in split-split plot design with sowing dates as main plot, organic fertilizer as sub-plot and variety as sub-sub-plot, and replicated three times. Sowing date significantly (P 0.05) increased and reduced number of phenological days to flowering of early and late sown sunflower, respectively. Funtua (a local adapted variety) matured 7 days later than SAMSUN-3 (recently released variety) when sown late. Application of organic fertilizer significantly (P 0.05) increased plant height of early and late sown sunflower. Delay in sowing till first week in September significantly (P 0.05) reduced head diameter, number of seeds per head and seed yield of late sown sunflower. Oil and protein contents of seeds from early and late sown sunflower plants were significantly (P 0.05) increased by organic fertilizer application, except protein content of late sown sunflower. However, it significantly (P 0.05) increased oil yield by 23% relative to the control in the late sown sunflower. Based on the comparatively high seed yield (850.45-1,525.78 kg/ha) recorded in our study, it is recommended that sunflower *Corresponding author: V.I.O. Olowe,

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Effect of Nitrogen on Yield and Oil Quality of Sunflower (<i>Helianthus Annuus</i> L.) Hybrids under Sub Humid Conditions of Pakistan

Cited by 47 publications

References 7 publications

Effect of nitrogen on achene protein, oil, fatty acid profile, and yield of sunflower hybrids

Effect of nitrogen on achene protein, oil, fatty acid profile, and yield of sunflower hybrids

The Quality of Sunflower Seed Oil Changes in Response to Nitrogen Fertilizer

Seed Yield and Quality of Sunflower (Helianthus annuus L.) as Influenced by Staggered Sowing and Organic Fertilizer Application in the Humid Tropics

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