http://hdl.handle.net/10568/68616 2017-07-12T02:54:07Z 2017-07-12T02:54:07Z Clottey, V. Wairegi, L. Bationo, A Mando, A. Kanton, R. http://hdl.handle.net/10568/82694 2017-07-11T03:02:00Z 2015-01-01T00:00:00Z

Sorghum-and millet-legume cropping systems Clottey, V.; Wairegi, L.; Bationo, A; Mando, A.; Kanton, R.

2015-01-01T00:00:00Z Aighewi, B. Maroya, N. Mignouna, D. http://hdl.handle.net/10568/82693 2017-07-11T03:00:28Z 2017-01-01T00:00:00Z

Key for a profitable and sustainable seed yam business enterprise: business plan and market development with record keeping for seed yam farmers Aighewi, B.; Maroya, N.; Mignouna, D.

2017-01-01T00:00:00Z Tripathi, L. http://hdl.handle.net/10568/82692 2017-07-07T15:34:59Z 2011-01-01T00:00:00Z

Biotechnology in Musa Improvement Tripathi, L.

2011-01-01T00:00:00Z Pillay, M. Cullis, C.A. Talengera, D. Tripathi, L. http://hdl.handle.net/10568/82691 2017-07-07T15:14:24Z 2011-01-01T00:00:00Z

Propagation methods in Musa Pillay, M.; Cullis, C.A.; Talengera, D.; Tripathi, L.

2011-01-01T00:00:00Z Mignouna, D.B. Akinola, A.A. Abdoulaye, T. Alene, A. Maroya, N. Aighewi, B. Wobill, T. Asiedu, R. http://hdl.handle.net/10568/82690 2017-07-08T03:00:33Z 2016-01-01T00:00:00Z

Impact evaluation protocols for agricultural projects: the case of yam improvement for income and food security in West Africa Mignouna, D.B.; Akinola, A.A.; Abdoulaye, T.; Alene, A.; Maroya, N.; Aighewi, B.; Wobill, T.; Asiedu, R.

2016-01-01T00:00:00Z Neuenschwander, P. Madojemu, E. http://hdl.handle.net/10568/82688 2017-07-07T14:12:07Z 1986-01-01T00:00:00Z

Mortality of the cassava mealybug Phenacoccus manihoti Mat.-Ferr.(Hom., Pseudococcidea) associated with an attack by Epidinocarsis lopezi (Hym., Encyrtidae) Neuenschwander, P.; Madojemu, E. Cassava mealybugs (CM) of different stages, which had been stung by an E. lopezi female, were inspected after 6 and 20 days. The killing power of the parasitoid was several times higher than the production of parasitoid off-spring. Host-feeding and mutilation were responsible for 6-22% and 11-34% mortality respectively. Both were significantly more important on the younger hosts. 11-33% of the stung CM yielded live parasitoids. Reproduction was significantly more successful on older CM. 30-56% of all CM survived a single oviposition attempt by the wasp. By contrast, mortality of the unstung control was 4-8%. In choice experiments, 3rd instar CM were slightly but not significantly prefered.

1986-01-01T00:00:00Z Mohamed, N.A. Terry, E.R. http://hdl.handle.net/10568/82686 2017-07-07T09:00:09Z 1979-04-01T00:00:00Z

Virus-like particles and cytoplasmic inclusions associated with diseased Dioscorea rotundata poir from Nigeria Mohamed, N.A.; Terry, E.R. Dioscorea rotundata plants from Nigeria showing green vein banding and shoe-string symptoms were found to be infected with a flexuous rod-shaped virus, about 805nm long. Infected leaves contained masses of filamentous virus-like particles and cytoplasmic inclusions usually associated with infection by potyviruses; however, no true pinwheels were present. This virus may differ from that infecting yams in the West Indies on the basis of the different inclusions found in infected tissues.

1979-04-01T00:00:00Z Debela, M. Dejene, M. Mengesha, A. http://hdl.handle.net/10568/82679 2017-07-07T03:00:20Z 2017-01-01T00:00:00Z

Management of Turcicum leaf blight [Exserohilum turcicum (Pass.) Leonard & Suggs] of maize (Zea mays L.) through integration of host resistance and fungicide at Bako, western Ethiopia Debela, M.; Dejene, M.; Mengesha, A. Turcicum leaf blight (TLB) (Exserohilum turcicum) is a major disease affecting maize production in western Ethiopia. The objectives of this study were to determine the effect of maize varieties integrated with fungicides on epidemics of turcicum leaf blight; to determine the effect of turcicum leaf blight severity on yield and yield components of maize; and to assess the cost and benefit of using fungicides. The field experiment was conducted at Bako Agricultural Research Center in 2014 main cropping season using six maize varieties (BH-540, BH-543, BH-546, BH-660, BH-661 and AMHQ-760) integrated with foliar sprays of the systemic fungicide propiconazole (Tilt) at the rate of 350 ml ha-1 and the contact fungicide mancozeb (Dithane M-45) at 2.6 kg ha-1. The experiment was arranged in 3 × 6 factorial combinations in split plot design with three replications. A pinch of ground maize leaf infected by E. turcicum was inoculated at third-fifth leaves. Unsprayed plots were left as control or check for each variety. Disease severity was scored using 1 to 5 scale on 12 randomly-tagged plants in the central rows. Integration effects of varieties with fungicides significantly affected the grain yield and thousand kernel weight (TKW) of maize varieties. The highest (11383 kg ha-1) grain yield was obtained from propiconazole-treated hybrid maize variety BH-546. Turcicum leaf blight resulted in grain yield losses of up to 40.7% on the unsprayed plots of the susceptible variety BH-543. Percent severity index, AUDPC, incidence and disease progress rates were negatively correlated with yield components regardless of grain yield loss. The highest marginal benefit (ETB 48,801.28 ha-1) and marginal rate of return (ETB 6.33) were obtained from propiconazole-treated varieties BH-543 and BH-546, respectively. This study contributes to integrated TLB management options, and to make a valid recommendation for TLB management strategy, the study should be repeated over years and locations where TLB of maize is of major economic importance. Open Access Journal

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