Abstract
Afield experiment was conducted from 2017 to 2018 to evaluate herbicides which can best perform against Striga in sorghum fields of Jeldu district West Shoa Zone. The experiment was carried out in randomized complete block design with three replications. Data was collected on crop and weed related parameters. Result obtained indicted that, Sorghum plant height, stock biomass, grain yield and thousand seed weight showed significant (P<0.05) difference due to treatments. The highest mean plant height (240.92 cm), Stock biomass (13967 kg/ha), grain yield (886.2 kg/ha) and thousand seed weight (24.3 gram) were recorded from the sequential application of Dual gold+ 2, 4-D as compared to weedy check. The lowest Striga height (31.917 cm) was recorded from sequential application of Dual gold+ 2, 4-D. Similarly, the lowest Striga biomass was recorded from farmers practice followed by Kerosene (for seed dressing) and sequential application of Dual gold+ 2, 4-D. Therefore, sequential application of Dual gold+ 2, 4-D was found effective against Striga weed in sorghum. hence, sequential application of Dual gold+ 2, 4-D can be recommended as one component of integrated Striga management in sorghum field. Keywords: Dual gold, Sorghum bicolor, Striga hermonthica management, 2, 4-D DOI: 10.7176/JBAH/11-19-03 Publication date: October 31 st 2021
Highlights
Ethiopia is the center of origin for sorghum varieties cultivated worldwide
The highest mean plant height, Stock biomass and grain yield were recorded from the sequential application of Dual gold+ 2, 4-D as compared to weedy check
The highest thousand seed weight was recorded from sequential application of Dual gold+ 2, 4-D and 2, 4-D
Summary
Ethiopia is the center of origin for sorghum varieties cultivated worldwide. Sorghum is one the most important cereal crops in the world, only exceeded by wheat and rice as staple food in the tropics and is a source of raw materials for many industrial products in Ethiopia.Striga hermonthica which belongs to Scrophulariaceae family is one of the cereal crops root parasite often causing 30-100% crop losses on farmers’ fields throughout the world (Ouedraogo, 1992). Ethiopia is the center of origin for sorghum varieties cultivated worldwide. Sorghum is one the most important cereal crops in the world, only exceeded by wheat and rice as staple food in the tropics and is a source of raw materials for many industrial products in Ethiopia. Striga hermonthica which belongs to Scrophulariaceae family is one of the cereal crops root parasite often causing 30-100% crop losses on farmers’ fields throughout the world (Ouedraogo, 1992). It is an important biotic constraint to sorghum and maize crop production, and the weed that the farmers fear most (Ramaiah, 1985). According to (Baguma and Bigirwa, 1996) report the weed can cause an economic loss of US$ 8 million a year. Worldwide striga causes yield losses that range between 20% and 100% ( Kim, 1991)
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