Main Article Content
Sorghum [Sorghum bicolor (L.)Moench] is widely cultivated but the productivity is very low due to different factors such as Striga hermonthica. Field trails were carried out at Humera location to determine the management of striga to different rates of herbicide application to increase sorghum yield during 2017 cropping season. The trail consisted of eight treatments; 0 (control), 10, 15 and 20gha-1 rates of Chlorsulfron. The herbicide rates were assigned to the main plot while sorghum varieties were assigned to subplots, replicated three times in a split plot design. The data of days to 50%emergence, 50%flowering, plant height at maturity, Panicle length, panicle weight (g), yield per panicle (g), 1000 seed weight (g), grain yield (kg ha-1), above ground dry biomass (kg ha-1) and striga data days to first striga emergence, days to first flowering, number of striga count, branch number per striga plant, striga count per sorghum plant, striga height and biomass (kg/m2 respectively. Partial budget analysis was computed to assess the economic visibility of herbicide application where recorded. Result showed that application of herbicide rates and varieties increased plant height, panicle length, number of heads harvested per plot, panicle weight, yield per panicle, 1000 seed weight and grain yield over the control. Maximum grain yield (3725kg ha-1) was obtained from application of 15 g ha-1 Chlorsulfron with variety Deber. Days to first flowering, striga count per sorghum plant, stand counts of striga at 45DAP, 65 DAP and 85DAP M-2, branch number per plant, plant height and biomass of striga were significantly (P<0.01) affected with the application of herbicide rates and varieties. The partial budget showed that an investing of 1.0 birr on application of herbicide with varieties earn 2.34 birr. Generally, application of Chlorsulfuron75% WDG and use local variety with high yielder could be an advantage to obtain highest yield and profit for the farmers in striga infestation areas.
FAO, Database of agricultural production. FAO Statistical Databases (FAOSTAT).
Accessed date 2012; 23 Apr 2016. 9:15 am
Tesso T, Gutema Z, Deressa A, and Ejeta G. An integrated Striga management option offers effective control of Striga in Ethiopia. In Integrating New Technologies For Striga Control: Towards Ending the Witch-Hunt. 2007;199-212.
Fasil R. Striga hermonthica control in Tigray (Norhtern Ethiopia). Prospects for control and improvement of crop productivity through mixed croping. Doctorate Thesis of the institute of Ecological Science, Vrije Universiteit Amsterdam; 2003
Rebeka G, Shimelis H, Laing M D, Tongoona P, and Mandefro N.Evaluation of Sorghum Genotypes Compatibility with under Infestation. Crop Science. 2013;53 (2):385-393.
Parker C, Riches CR. Parasitic weeds of the World, Biology and Control. 1993;1-74. CAB International, Wallingford, UK.
Elzein A, Kroschel J. Host range studies of Fusarium oxysporum Foxy 2: An evidence for a new forma specialis and its implications for Striga Control. 2006;20: 875.
Kanampiu FK, Vkabame C, Massawe L, Jasi D, Friesen JK, Ransom and GresselJ. Multi-site, multi-season field tests demonstrate that herbicide seed- coating herbicide resistance maize controls striga spp, and increases yields in several African Countries Crop Prot. 2003;22:677-706.
CIMMYT (International Maize and Wheat Improvement Center). From Agronomic Data to Farmer Recommendations. An Economics Training Manual (completely revised edition) CIMMYT Economics Programme. Mexico, D.F: International Maize and Wheat Improvement Center (CIMMYT). 1998;79.
Illa AO, Odhiambo GD, Dida MM. Increasing imazapyr-resistance maize yield by increasing plant density under natural strga hermontica infestation.Agricultural and Bilogy Journal of North America; 2010.
Ayman AA, Dafalla DA, Hassan YR, Lubna EK. Effects of some formulations of chlorsulfyron On striga control and sorghum yield. International Journal of Life Science Research. 2014;2:185-188.
Kanampiu FK, Vkabame C, Massawe L, Jasi D, Friesen J.K, Ransom, and J. Gressel Multi-site, multi-season field tests demonstrate that herbicide seed-coating herbicide resistance maize controls striga spp, and increases yields in several African Countries Crop Prot. 2003;22:677-706.
Schaub B, Marley P, Elzein A, and Kroschel J. Field evaluation of an integrated Striga hermontica management in Sub-Saharan Africa: Synergy between Striga-mycoherbicides (biocontrol) and sorghum and Maize Resistant Varieties. 2006;20:691.27-144.