Effect of Nitrogen Levels and Time of Application on Growth Seed Yield and Oil Content of Sunflower (Helianthus annuus L.) Gezira State Sudan

الموضوعات

زراعة

الملخص

Nitrogen is one of the major nutrients that enhances the metabolic processes that leads to increases in growth and yield of crops. Also, the time of nitrogen application affects seed yield of sunflower and reduces N losses. The objective of the current study was to investigate the effects of nitrogen levels and time of application on growth, seed yield, yield components and oil content (%) of sunflower. Field trials were carried out at the experimental farm of the Faculty of Agricultural Sciences, University of Gezira, during summer and winter seasons of 2017/18. A total of 12 treatments, namely, four nitrogen levels (0, 43, 86, 129 Kg N/ha)) and three times of nitrogen application, namely at early and at budding, at early and at flowering and at budding and at flowering were used. A randomized complete block design with three replicates was used. The cultivar used during the two seasons was Hysun-33. Results indicated that nitrogen treatments had significant effects on plant height ,LAI, total fresh and dry weights of plants , number of seeds/plant, 1000 seed weight, empty seeds (%),seed yield/ha and oil content (%) in both seasons. Time of N application had significant (P≤0.05) effects on plant height, fresh and dry weights, number of seeds/plant and oil content (%) in both seasons and on 1000 seed weight and seed yield/ha in summer season only. The highest seed yield (2852.43kg/ha) was obtained when 86 kg N /ha was applied at early and at flowering in summer season and (2373.64 kg/ha) when 129 kg/ha was applied at budding and at flowering in winter season. However, the control treatment produced significantly (P ≤ 05) the highest oil content in summer season and zero or 129kg N ̸ ha at budding and flowering in winter season. It is recommended to apply 43 kg N /ha at early and at flowering or at budding and at flowering in summer and winter seasons, respectively, for the highest seed yield. In order to produce the highest oil content, it is not recommended to apply N under Gezira conditions, Sudan.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0c165b4d-9a40-4ba0-83c9-c8408a452321

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf image

أسماء الملفات

0c165b4d-9a40-4ba0-83c9-c8408a452321_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":" Ibrahim Elbashir Mohammed Ibrahim ","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Abdullah Abdulstar Abdullah Hammadi","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Ahmed Eltayeb Daffalla Eltayeb","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Effect of Nitrogen Levels and Time of Application on Growth Seed Yield and Oil Content of Sunflower (Helianthus annuus L.) Gezira State Sudan

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Ibrahim Elbashir Mohammed Ibrahim , Ahmed Eltayeb Daffalla Eltayeb

الإعداد

Abdullah Abdulstar Abdullah Hammadi

الاقتباسات الببليوغرافية