Performance of Snap Bean (Phaseolus vulgaris L.) Genotypes for Green Pod Yield and Quality in the Central Rift Valley of Ethiopia

Yosef Alemu,Melkamu Hinsermu,Getachew Tabor,Tesfa Binalfew,Gebeyehu Wendimu,Selamawit Ketema,Jibicho Geleto,Shimelis Aklilu

doi:10.15580/gjpbcs.2018.1.122017181

Abstract

Multi-location variety trials were conducted to evaluate snap bean genotypes for yield and quality in 2013 and 2014 at Melkassa and Debrezeit agricultural research centers and Wonji. The experiment was laid out in RCBD with three replications. Data on yield and yield contributing traits were collected and subjected to environment wise analysis of variance followed by pooled analysis. The pooled analysis of variance for marketable yield showed significant difference (p< 0.01); and ranged from 7.5 t ha-1 to 9.14 t ha-1. Total green pod yield was also significant (p < 0.05); and ranged from 9.72 t ha-1 to 11.73 t ha-1 for genotypes BC4.4 and Plati respectively. There was also significant difference (p< 0.01) among genotypes in days to 50% flowering, pod diameter and length. Genotype Plati had the largest pod diameter (7.02 mm) and length(119.3 mm). The rest pod characters such as pod shape, color, fiber content and curvature were also diverse among genotypes. On the basis of total yield (11.73 t ha-1) and pod characters such as pod diameter(7.02 mm) and length(119.3 mm), low fiber content, green pod color, smooth pod surface, straight pod curvature and round pod shape, genotype Plati was identified as potential variety and thus released for production in the Central Rift Valley and similar agro-ecologies of Ethiopia

Highlights

Common bean (Phaseolus vulgaris) is widely cultivated in the world due to its high market value and good nutritional composition; high protein content in dry seed, and good source of fiber in snap bean
On the basis of total yield (11.73 t ha-1) and pod characters such as pod diameter(7.02 mm) and length(119.3 mm), low fiber content, green pod color, smooth pod surface, straight pod curvature and round pod shape, genotype Plati was identified as potential variety and released for production in the Central Rift Valley and similar agroecologies of Ethiopia
In 2013, the highest marketable green pod yield was obtained at Wonji (9.53 t ha-1) followed by Debrezeit (8.73 t ha-1) and Melkassa (7.23 t ha-1); whereas in 2014, the highest marketable green pod yield was obtained at Melkassa (9.95 t ha-1) followed by Debrezeit (8.37 t ha-1) and Wonji (6.94 t ha-1)

Summary

Introduction

Common bean (Phaseolus vulgaris) is widely cultivated in the world due to its high market value and good nutritional composition; high protein content in dry seed, and good source of fiber in snap bean. It is consumed either as dry bean (grain) or snap bean (fresh vegetable) (Santalla et al, 1999). Different market classes of snap bean exist based on pod characteristics and plant type Pod characteristics such as sieve size, percent seed weight of total pod weight, pod fiber content, smoothness and straightness, color and flavor are among others determine the degree to which snap beans are accepted by consumers and processors. Among the three types of snap bean varieties bush, pole and half runners (USDA, 1995), the former two are the most important types available for different markets (Getachew, 2006; USDA, 1995)

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Results

Conclusion