A physiological explanation of drought effect on flag-leaf specific weight and chlorophyll content of barley
العناوين الأخرى
التفسير الفسلجي لتأثير الجفاف على وزن ورقة العلم و محتوى كلوروفيل الشعير
المؤلفون المشاركون
Mahmud, Yadgar Ali
Muhammad, Masud Sabir
Hasan, Halgurd Nasr al-Din
المصدر
العدد
المجلد 60، العدد 12 (31 ديسمبر/كانون الأول 2019)، ص ص. 2531-2539، 9ص.
الناشر
تاريخ النشر
2019-12-31
دولة النشر
العراق
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
This study was carried out in Kalar technical institute, Sulaimani Polytechnic University in Garmian region, Iraq during 2016-17 and 2017-18 seasons.
Five hybrid genotypes of barley were tested under drought and irrigated conditions to detect the flag-leaf specific weight, chlorophyll content index (SPAD; The Soil Plant Analysis Development chlorophyll meter) and the period from anthesis to physiological maturity.
Across both years 2016-17 and 2017-18, there was no effect of drought on flag-leaf specific weight, however, SPAD was reduced by 4.77 and the period between anthesis and maturity was shortened by almost two days.
Genotype 3//14 scored the highest values of flag-leaf specific weight (7.765 mg cm-2)and SPAD (25.56), and stayed green for the longest period (28.69 days) (P=0.05), showing its ability to be more tolerant to moisture reductionas compared to the other tested genotypes.
In order to explain the physiological mechanisms among the assessed traits under both irrigated and drought conditions, linear regression analysis was applied for both seasons and averaged over seasons.
A positive linear relationship was shownbetween flag-leaf specific weight and SPAD under both irrigated (R2=0.83; P=0.03) and drought (R2=0.76; P=0.05) conditions, explaining the high flag-leaf chlorophyll content resulting from high specific weight of leaves.
The high flag-leaf specific weight was also associated with longer periods for leaves to stay-green after anthesis, under both irrigated (R2=0.91; P=0.01) and drought (R2=0.79; P=0.04) conditions, which provides a great chance to accumulate more resources of carbohydrates and protein in the grain and, consequently,a higher throughput of yield.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahmud, Yadgar Ali& Muhammad, Masud Sabir& Hasan, Halgurd Nasr al-Din. 2019. A physiological explanation of drought effect on flag-leaf specific weight and chlorophyll content of barley. Iraqi Journal of Science،Vol. 60, no. 12, pp.2531-2539.
https://search.emarefa.net/detail/BIM-969534
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahmud, Yadgar Ali…[et al.]. A physiological explanation of drought effect on flag-leaf specific weight and chlorophyll content of barley. Iraqi Journal of Science Vol. 60, no. 12 (2019), pp.2531-2539.
https://search.emarefa.net/detail/BIM-969534
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahmud, Yadgar Ali& Muhammad, Masud Sabir& Hasan, Halgurd Nasr al-Din. A physiological explanation of drought effect on flag-leaf specific weight and chlorophyll content of barley. Iraqi Journal of Science. 2019. Vol. 60, no. 12, pp.2531-2539.
https://search.emarefa.net/detail/BIM-969534
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Text in English ; abstracts in English and Arabic.
رقم السجل
BIM-969534
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