Photo credit: ICRISAT
Photo: A Habtamu, ILRI
Coping with Striga and drought in sorghum
Field visits of crop research work in Ethiopia (ICRISAT)
Striga and drought are the two major constraints that sorghum farmers are struggling to cope with. While there are several farmer-preferred improved varieties and hybrids, their adoption by farmers is low due to lack of resistance to these constraints. In contrast, there are many landraces and wild sorghum varieties which are resistant to Striga and also moisture stress.
The trials in Ethiopia are an attempt to introduce Striga and drought tolerant traits into high-yielding varieties and hybrids through introgression of wild sorghum and landraces with resistance/tolerance genes. The trial involves four varieties and four hybrids with farmer-preferred traits and 40 wild sorghum varieties selected from a collection of 5,100 accessions and 16 landraces from Ethiopia and Sudan. Other trials include selection for dual purpose sweet sorghum and high lysine sorghum with non-shriveling property. Available sweet sorghum varieties are not good for grain and high lysine sorghum varieties suffer from shriveling when dry and hence have low marketability.