2021/07/21 by Zerhun Ganewo, Ganewo, Zerhun, Tefera Tewodros +3
Agricultural and Biological Sciences · #Agricultural Innovations and Practices #Agricultural pest management studies #Haricot bean #Logit #Meher #Seed and Plant Biochemistry #Varietal replacement
paper · doi:10.20372/173trp57
openalex publication_date 2021/07/21 · openalex created_date 2025/12/23 · openalex updated_date 2026/07/01
Seed is a fundamental input in crop production, which plays a significant role in enhancing productivity. Associated with seed, the choice and the decision to replace crop varieties in use are critical to increase productivity. This study examined determinants of varietal replacement among farmers producing Haricot bean varieties in Boricha district. Four kebele administrations and 162 sample respondents were selected using a multi-stage sampling procedure and data were collected by using a structured questionnaire. The findings show that improved haricot bean varieties promoted by the extension system were released during the last 6 to 12 years. Farmers mainly grow old varieties and hence varietal replacement is low. From total sample respondents, 77% had grown varieties that were released from research centers in the past 6 to 12 years whereas the remaining 23% had grown Red Wolaita, which was released four and half decades ago and now considered as a local variety. Out of 162 farmers, 72% of sampled farmers replaced the old variety by Hawassa Dume, which was released in 2008 and is the most recent variety available in the district. The Logistic regression model showed that age of household head, size of landholding, market price of varieties used for replacement, livestock ownership measured in Tropical Livestock Unit (TLU), availability of recently released varieties, participation on extension demonstration, and perception about yield of varieties used for replacement significantly affected varietal replacement decisions. Hence, it is important to enhance resource endowment of households, improve access for recently released varieties, integrate growers with high value market and organize extension demonstration of improved varieties to facilitate varietal replacement.