Abstract
Haricot bean, often known as Boleqe in Ethiopia. It is a major legume crop produced widely all over the world. Depending on the variety, it may adapt to a wide range of environmental conditions, from sea level to almost 3000 meters above sea level. It thrives commonly in warm climates with temperatures ranging from 18 to 24°C. Despite its importance for nutrition and export, haricot bean production in Ethiopia is limited to small regions and small-scale growers, with little or no fertilizer or soil amendments being employed. The responses of the haricot bean varieties to each limitation varied, although they are mostly determined by the environmental conditions. The main bottle neck of haricot bean production is the lack of improved high producing cultivars that suit to each agroecology. The current experiment was carried out on six released haricot bean varieties with half diallel without reciprocal crosses on the field to make F1 hybrids in all possible combinations and with the objective of evaluation of agronomic traits of haricot bean varieties and performing their half diallel cross by using complete block design. An analysis of variance revealed a highly significant difference in yield contributing components among these released varieties at 5% probability level for most of the traits. This suggests that the released haricot bean varieties have a high genetic variation.
Highlights
Haricot bean (Phaseolus vulagris L), known as dry bean, common bean, kidney bean and field bean, known as boleqe locally in Ethiopia
The observable traits of variation existing in a population are phenotypic variability, which is a combined impact of genotypic value and environmental deviation
Six released haricot bean varieties were tested by randomized complete block design with three replications and half diallel mating design was used for crossing
Summary
Haricot bean (Phaseolus vulagris L), known as dry bean, common bean, kidney bean and field bean, known as boleqe locally in Ethiopia It is a major legume crop grown all over the world and belongs to Fabaceae family crop that grows annually. The lack of improved high producing cultivars, low soil fertility, and losses due to insect pests and disease are all factors that contribute to the low yield [9, 10, 4] Varieties differ in their responses to these restrictions, environmental factors have a big influence [2]. Haricot bean productivity in these locations could be improved by selecting cultivars that are well adapted to local agro-ecological conditions, soil fertility, and moisture levels. All of them are different from one other based on parents involved in crosses to generate hybrids in all conceivable pairings
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