International Journal of Sustainable Agricultural Research

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No. 1

GGE and Ammi Biplot Analysis for Field PEA Yield Stability in Snnpr State, Ethiopia

Pages: 28-38
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GGE and Ammi Biplot Analysis for Field PEA Yield Stability in Snnpr State, Ethiopia

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Citation: 17

Yayis Rezene , Agdew Bekele , Yasin Goa

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Yayis Rezene , Agdew Bekele , Yasin Goa (2014). GGE and Ammi Biplot Analysis for Field PEA Yield Stability in Snnpr State, Ethiopia. International Journal of Sustainable Agricultural Research, 1(1): 28-38. DOI:
The experiment was conducted for two consecutive years across four locations using 16 field pea genotypes. The objective of this paper is to determine the magnitude of genotype by environment interactionand performance stability of genotypes. Analysis of variance (ANOVA), regression of genotype on the environmental mean, AMMI analysis, ASV estimation and GGE biplot analysis were carried out following their respective procedures. Pooled analysis of variance for grain yield showed significance differences among genotypes, environments and G xE interaction. This implied genotypes differently responded to change in environments. Both ASV and AMMI biplot analysis showed the same result in identifying the widely adapted genotypes. Genotypes IG-51700 and SAR-FB-61 were the best adapted ones in this experiment for wide scale recommendation in field pea growing areas while Genotype FP-Milky was better adapted variety in the high potential areas, like Angecha, which is already under production. Based on the GGE biplot analysis, Angecha o4 environment is more discriminating environment than others for the superior genotype selection. Location-wise Waka provided little or no information about the genotypic differences, therefore, should not be considered as test environments for field pea yield trials. Angecha, Hosanna and Bule can be efficiently used for filed pea multi-environment yield trials provided that they are further confirmed by multi-year experimental data. 
Contribution/ Originality

Farmer’s Decision To Practice Crop Rotation in Arsi Negelle, Ethiopia: What are the Determinants?

Pages: 19-27
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Farmer’s Decision To Practice Crop Rotation in Arsi Negelle, Ethiopia: What are the Determinants?

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Citation: 1

Musa H. Ahmed

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Musa H. Ahmed (2014). Farmer’s Decision To Practice Crop Rotation in Arsi Negelle, Ethiopia: What are the Determinants?. International Journal of Sustainable Agricultural Research, 1(1): 19-27. DOI:
Though Ethiopia is an agrarian country, imbalance between the population growth and the agricultural production growth rate is one of the pronounced national problems that the country is facing. In addition, the agricultural sector in the country is characterized by inadequate resource endowment, traditional methods of cultivation and husbandary practices, limited access to land, credit and agricultural innovation. Crop rotation is one of the responses to enhance productivity and improve soil fertility. However, the adoption of this practice by smallholder farmers is limited. Therefore, the major concern of this study is to empirically examine factors influencing adoption of crop rotation by smallholder farmers in Arsi Negelle district of Ethiopia. In the process of the study both primary and secondary data were used. In this study, stratified sampling procedure was used to select 160 sample households from three kebeles  (74 household who are practicing crop rotation and 86 non-adopters). The required data were collected using interview through structured questionnaire. Logistic regression analysis was used to identify factors influencing adoption of crop rotation and results of the regression analysis indicate that educational level of the household, farming experience and extension contact were the most important factors influencing decision of the farmer to practice crop rotation.  Hence, emphasis should be given to improve the human capital through education and providing extension service to bring the non adopter into the board.

Contribution/ Originality

Agricultural Dualism, Wage Inequality and Development Policies

Pages: 1-18
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Agricultural Dualism, Wage Inequality and Development Policies

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Ranjanendra Narayan Nag , Rakhi Banerjee

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Ranjanendra Narayan Nag , Rakhi Banerjee (2014). Agricultural Dualism, Wage Inequality and Development Policies. International Journal of Sustainable Agricultural Research, 1(1): 1-18. DOI:
The main purpose of this paper is to explore how globalization affects  wage inequality and welfare in a small open economy characterized by agricultural dualism . By using a three- sector general equilibrium model we establish the possibility of a decline in welfare in the trail of  different liberalization measures.In particular, we examine effects of agricultural trade liberalization and capital market liberalization. We demonstrate that  implicatins of these liberalization measures  for welfare and wage gap are critically sensitive to agricultural dualism, factor specificity and  factor intensity ranking.

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