Water Use Efficiency and Physiological Response of Rice Cultivars under Alternate Wetting and Drying Conditions
المؤلفون المشاركون
Laza, Rebecca C.
Qin, Jianquan
Tang, Qiyuan
Zhang, Yunbo
Xing, Danying
Punzalan, Bermenito R.
Peng, Shaobing
المصدر
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-12-18
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
العلوم الطبيعية والحياتية (متداخلة التخصصات)
الطب البشري
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
One of the technology options that can help farmers cope with water scarcity at the field level is alternate wetting and drying (AWD).
Limited information is available on the varietal responses to nitrogen, AWD, and their interactions.
Field experiments were conducted at the International Rice Research Institute (IRRI) farm in 2009 dry season (DS), 2009 wet season (WS), and 2010 DS to determine genotypic responses and water use efficiency of rice under two N rates and two water management treatments.
Grain yield was not significantly different between AWD and continuous flooding (CF) across the three seasons.
Interactive effects among variety, water management, and N rate were not significant.
The high yield was attributed to the significantly higher grain weight, which in turn was due to slower grain filling and high leaf N at the later stage of grain filling of CF.
AWD treatments accelerated the grain filling rate, shortened grain filling period, and enhanced whole plant senescence.
Under normal dry-season conditions, such as 2010 DS, AWD reduced water input by 24.5% than CF; however, it decreased grain yield by 6.9% due to accelerated leaf senescence.
The study indicates that proper water management greatly contributes to grain yield in the late stage of grain filling, and it is critical for safe AWD technology.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhang, Yunbo& Tang, Qiyuan& Peng, Shaobing& Xing, Danying& Qin, Jianquan& Laza, Rebecca C.…[et al.]. 2012. Water Use Efficiency and Physiological Response of Rice Cultivars under Alternate Wetting and Drying Conditions. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-460607
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhang, Yunbo…[et al.]. Water Use Efficiency and Physiological Response of Rice Cultivars under Alternate Wetting and Drying Conditions. The Scientific World Journal No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-460607
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhang, Yunbo& Tang, Qiyuan& Peng, Shaobing& Xing, Danying& Qin, Jianquan& Laza, Rebecca C.…[et al.]. Water Use Efficiency and Physiological Response of Rice Cultivars under Alternate Wetting and Drying Conditions. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-460607
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-460607
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