کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4510824 | 1321876 | 2011 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Stability analysis of farmer participatory trials for conservation agriculture using mixed models
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
⺠Alternative resource conserving technologies were compared with the currents farmers practice of rice and wheat for grain yield on farmer's field in the Indo-Gangetic Plains of South Asia. ⺠The data generated from these farmers' participatory trials were highly unbalanced. ⺠Assessing the relative performances of technologies over a range of environments, stability analysis for grain yield was carried out using SAS mixed model procedures. ⺠Stability models were compared allowing for (i) heterogeneity of error variances and (ii) heterogeneity of variances between environments for farmers-within-environment effects. ⺠Based on best fitting model, Reduced-till (non-puddled) transplanted rice (RT-TPR) and reduced-till/zero-till drill-seeded wheat were found best in terms of grain yield and stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 121, Issue 3, 3 April 2011, Pages 450-459
Journal: Field Crops Research - Volume 121, Issue 3, 3 April 2011, Pages 450-459
نویسندگان
Anitha Raman, Jagdish K. Ladha, Virender Kumar, Sheetal Sharma, H.P. Piepho,