Some physiological aspects of seed set in sunflower (Helianthus annuus L.) var. Damazien 1-3
مقدم أطروحة جامعية
Bakhit, Baha al-Din Muhammad Idris
مشرف أطروحة جامعية
الجامعة
جامعة أم درمان الإسلامية
الكلية
كلية الزراعة
القسم الأكاديمي
قسم علوم المحاصيل
دولة الجامعة
السودان
الدرجة العلمية
دكتوراه
تاريخ الدرجة العلمية
2008
الملخص الإنجليزي
Three field experiments were conducted during 2005-2006 and 2006-2007 seasons in the demonstration Farm of Shambat Research Station.
The objective was to study some physiological aspects of seed set in an open-pollinated sunflower cultivar-Damazien 1-3.
The aim of the first experiment was to study vegetative growth till ripening, the second was to study different pollination methods, and the third was to study source-sink relationship of the plant.
Experiment (1) contain one plot whereas experiment (2) and three contain (4) replications. Parameters studied included : growth attribute (plant height, number of leaves / plant, leaf area / plant, leaf area index, leaf dry weight, stem dry weight, disc dry weight, plant dry weight, and leaf duration (days)), reproductive attribute (days of flowering, daily-opening rows / disc, number of rows / disc, daily opening flowers / disc, number of flowers / disc, disc diameter, number of seeds/disc, empty seed percentage, filled seed percentage, 100 seed weight and yield / plant. Results showed that bee pollination had positive effects on seed set of sunflower compared to hand and self-pollination.
It significantly increased filled seed percentage,100-seed weight and yield / plant; and significantly decreased empty seed percentage and days to maturity.
Results also revealed that, decreasing sinks affected seed set, in contrast, it significantly increased filled seed percentage and days to maturity; and insignificantly 100-seed weight.
Whereas significantly decreased seed number / disc, empty seed Percentage and yield / plant.
On the other hand, decreasing sources negatively affected seed set of sunflower.
It significantly decreased filled seed percentage and 100-seed weight; and insignificantly yield / plant.
Moreover, it significantly increased empty seed percentage.
التخصصات الرئيسية
الموضوعات
عدد الصفحات
67
قائمة المحتويات
Table of contents.
Abstract.
Chapter One : Introduction.
Chapter Two : Literature review.
Chapter Three : Materials and methods.
Chapter Four : Results.
Chapter Five : Discussion, Conclusions.
References.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Bakhit, Baha al-Din Muhammad Idris. (2008). Some physiological aspects of seed set in sunflower (Helianthus annuus L.) var. Damazien 1-3. (Doctoral dissertations Theses and Dissertations Master). Omdurman Islamic University, Sudan
https://search.emarefa.net/detail/BIM-364193
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Bakhit, Baha al-Din Muhammad Idris. Some physiological aspects of seed set in sunflower (Helianthus annuus L.) var. Damazien 1-3. (Doctoral dissertations Theses and Dissertations Master). Omdurman Islamic University. (2008).
https://search.emarefa.net/detail/BIM-364193
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Bakhit, Baha al-Din Muhammad Idris. (2008). Some physiological aspects of seed set in sunflower (Helianthus annuus L.) var. Damazien 1-3. (Doctoral dissertations Theses and Dissertations Master). Omdurman Islamic University, Sudan
https://search.emarefa.net/detail/BIM-364193
لغة النص
الإنجليزية
نوع البيانات
رسائل جامعية
رقم السجل
BIM-364193
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
