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Fungicide Management of Faba Bean Gall (Olpidium viciae) in Ethiopia
2019
Wondwosen, Wulita | Dejene, Mashilla | Tadesse, Negussie | Kemal, Seid Ahmed
Various biotic, abiotic and socio-economic factors negatively affect the productivity of the crop. Among these, a new disease known as Faba bean galls (Olpidium viciae) has become a serious threat to faba bean production and productivity in highland areas of central and northern Ethiopia. Thus, field experiment was conducted in Lay Gorebela and Mush to assess the efficacies of fungicides for the management of faba bean gall under natural infection. Six fungicides were evaluated alongside control in randomized complete block design in three replications. Fungicides showed different levels of efficiency at both locations in both seasons. In 2014/15, the highest percent severity index and area under disease progress curve were calculated from control plots at both locations. At Lay Gorebela, higher grain yields were recorded from Metalaxyl 8% + Mancozeb 64% WP and Triadimefon 250 g/L sprayed plots whereas plots sprayed with Metalaxyl 8% + Mancozeb 64% WP gave higher yield at Mush. Similar trends in percent severity index and grain yield were observed with control treatment in 2015/16. Percent severity index and area under disease progress curve were negatively correlated with grain yield and positively correlated with each other at both locations and seasons. Partial budget analysis indicated as Triadimefon 250 g/L and Metalaxyl 8% + Mancozeb 64% WP were cost-effective. The chemical treatment could be used as a short-term control strategy, and a component in integrated management of faba bean galls
اظهر المزيد [+] اقل [-]What Are The Factors Affecting No-Till Adoption In The Farming System Of Sétif Province In Algeria?
2018
Rouabhi, Amar | Laouar, Abdelmalek | Mekhlouf, Abdelhamid | Dhehibi, Boubaker
Conservation agriculture is a concept which defines different farming systems. Its implementation depends on soil properties, climate and socio-economic considerations. Since two thousands, no-till technology; which is one facet of the conservation agriculture has begun to take place in the high plains of Sétif province-Algeria. Its adoption is facing several problems of socio-economic and technical issues. This work monitored the track of no-till adoption within a sample of 28 farmers during two years 2014 and 2016. During 2014 farmers were supported financially and technically through a subsidy program that aimed at the support of conservation agriculture via no-till technique. In 2016, the subsidy program has ended; hence, farmers have no longer incentives. Multivariate statistical analyses were performed to diagnose the evolution of no-till adoption and behavior’s farmers between the two periods. In 2016, results showed an increase of no-till area, even though, the drop of the number of adoptive farmers by 71%. The main reasons for adopting no-till according to the adoptive farmers were the minimization of farming operation costs and saving time. However, the major impediments facing no-till adoption; were the rise of weeding charges and the concern of weed infestation especially by bromus.sp, which is a vigorous prevalent weed, which locally developed some pesticide’s resistance. Also, the excessive use of pesticides may be considered as an environmental reason for no adopting no-till.
اظهر المزيد [+] اقل [-]Phenotypic Characterization for Identification, Conservation and Sustainable Utilization of Boset and Minjar Shenkora Goats of Ethiopia
2021
Ayele, Tesfalem | Assefa, Abraham | Hailu, Abebe | Getachew, Tesfaye | Misganaw, Manaye | Sinke, Seble | Getachew, Fasil | Guangul, Solomon
This study was conducted on a total of 776 goats (part of Central highland goat breeds of Ethiopia), 306 from Boset district of Oromia region and 470 were from Minjar Shenkora district of Amhara region. A format developed by using food and agriculture organization discerption list was used for recording of morphological traits, bodyweight and linear body measurements. Both qualitative and quantitative traits were recorded from randomly sampled mature goats and the data were analyzed using SAS software. The goat type in the study area was characterized by a higher proportion of plain coat color patterns (62.5). Ingeneral, the majority (98.4%) of the studied goats were horned and characterized by backward orientation (67%) with a straight shape (49.3%). They presented a concave facial profile (73.8%), slop up toward the rump back profile (66.2%), no wattle (99.6%), no toggle (90.7%), no ruff (85.9%) and no beard (57.3%). The location had a significant effect on body weight and some other linear body measurements. Traits like body length, rump length, horn length, head length, head width and shin circumference were significantly higher in Boset district. In contrast, rump width and cannon bone length were significantly lower. The mean body weight of male goats in Boset and Minjar Shenkora district were 30.5±1.05 kg with a range of 16 to 47 and 27.5±0.56 with a range of 13 to 57, respectively. While for female counterpart mean body weights (kg) were 28.4±0.35 with a range of 17 to 45 for Boset and 27.5±0.33 with a range 15 to 57 for Minjar Shenkora district. Heart girth had the highest correlation with body weight in both sexes and shoulder width in Boset male goats. The wider variation in most quantitative measurement traits would open an opportunity for further improvement, conservation and utilization work.
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