Potential of Cowpea Variety Mixtures to Increase Yield Stability in Subsistence Agriculture : Preliminary Results
المؤلفون المشاركون
Maass, Brigitte L.
Okonya, Joshua S.
المصدر
International Journal of Agronomy
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-01-23
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
Cowpea Vigna unguiculata (L.) Walp.
is an important leafy vegetable and grain legume in Uganda.
Unlike in commercial agriculture, where variety mixtures are known to give higher and more stable yields, the performance of cowpea variety mixtures in subsistence agriculture is little known.
Mixtures containing up to four cowpea varieties were subjected to all possible 2-way, 3-way, and 4-way combinations.
These cowpea varieties and mixtures were grown at three locations in Soroti and Kumi districts in order to assess the relative mixture effect, defined as: Mixture effect (%) = (mixture yield − pure line component average)/pure line component average × 100.
Yield data was subjected to one-way ANOVA using the GLM procedure of SYSTAT.
PLABSTAT was used to generate ecovalence (Wi) values as a measure of stability with low ecovalence values indicating higher stability.
The total cowpea dry matter (DM) yield was in the range of 3.7–6.7 g/m2 (leaf) and 12.1–36.7 g/m2 (grain), respectively.
Mixture effects were between −9.3–14.0% (leaf) and −30.3–21.9% (grain).
Yield stability spanned Wi = 0.06–5.30 (leaf) and Wi = 4.45–894.84 (grain).
The results suggested that yields of cowpea variety mixtures grown in marginal environments were more stable than of single varieties but not all mixtures yielded more than single varieties.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Okonya, Joshua S.& Maass, Brigitte L.. 2014. Potential of Cowpea Variety Mixtures to Increase Yield Stability in Subsistence Agriculture : Preliminary Results. International Journal of Agronomy،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-477797
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Okonya, Joshua S.& Maass, Brigitte L.. Potential of Cowpea Variety Mixtures to Increase Yield Stability in Subsistence Agriculture : Preliminary Results. International Journal of Agronomy No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-477797
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Okonya, Joshua S.& Maass, Brigitte L.. Potential of Cowpea Variety Mixtures to Increase Yield Stability in Subsistence Agriculture : Preliminary Results. International Journal of Agronomy. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-477797
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-477797
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