Globally, diseases constitute a major biotic constraint to soyabean production. Although, the list of diseases of soyabean in Ghana has been published, the incidence, severity, and distribution of listed diseases were not indicated. Secondly, the Savannah Agriculture Research Institute (SARI) has accumulated considerable number of soyabean genotypes most of which were sourced from the International Institute of Tropical Agriculture (IITA) and the United States Department of Agriculture (USDA). Efficient use of germplasm depends on knowledge of variation that exists among genotypes for traits of interest coupled with an understanding of genetic diversity. Therefore, it was imperative to morphologically and genetically characterise genotypes in SARI’s germplasm to guide breeding efforts. Lastly, it is important to consider the architecture of released varieties in relation to farming systems including commercial farming. Most of the released soyabean varieties in Ghana belong to the early and medium maturing groups with low pod clearance. Low pod clearance is not a problem with subsistence farming systems where harvesting is manually done, but in commercial farms that use combine harvesters, low pod clearance could be the source of considerable losses. Detailed assessment of soyabean disease situation at production centres and detailed characterisation of genotypes in SARI’s soyabean germplasm have been carried out to identify sources and loci of resistance to predominant diseases of soyabean in Ghana. The objective of this study were to: (1) carry out a survey of soyabean diseases across major production centres in Ghana and their incidence and severity, (2) evaluate SARI’s soyabean germplasm for resistance to bacterial leaf pustule, (3) evaluate SARI’s soyabean germplasm for resistance to soyabean seed decay, (4) assess diversity, population structure and identify lines with high pod clearance among genotypes in SARI’s germplasm, (5) identify Phomopsis seed decay (PSD) and bacterial leaf pustule (BLP) resistant loci through genome-wide association mapping, (6 ) identify loci associated with pod clearance.
BARNOR, M (2021). IDENTIFICATION OF SOURCES AND LOCI FOR DEVELOPMENT OF SOYABEAN [Glycine max (L.) Merrill] CULTIVARS THAT COMBINE BACTERIAL PUSTULE AND SEED DECAY RESISTANCE WITH HIGH POD CLEARANCE. Afribary. Retrieved from https://tracking.afribary.com/works/identification-of-sources-and-loci-for-development-of-soyabean-glycine-max-l-merrill-cultivars-that-combine-bacterial-pustule-and-seed-decay-resistance-with-high-pod-clearance
BARNOR, MICHAEL "IDENTIFICATION OF SOURCES AND LOCI FOR DEVELOPMENT OF SOYABEAN [Glycine max (L.) Merrill] CULTIVARS THAT COMBINE BACTERIAL PUSTULE AND SEED DECAY RESISTANCE WITH HIGH POD CLEARANCE" Afribary. Afribary, 15 Apr. 2021, https://tracking.afribary.com/works/identification-of-sources-and-loci-for-development-of-soyabean-glycine-max-l-merrill-cultivars-that-combine-bacterial-pustule-and-seed-decay-resistance-with-high-pod-clearance. Accessed 21 Nov. 2024.
BARNOR, MICHAEL . "IDENTIFICATION OF SOURCES AND LOCI FOR DEVELOPMENT OF SOYABEAN [Glycine max (L.) Merrill] CULTIVARS THAT COMBINE BACTERIAL PUSTULE AND SEED DECAY RESISTANCE WITH HIGH POD CLEARANCE". Afribary, Afribary, 15 Apr. 2021. Web. 21 Nov. 2024. < https://tracking.afribary.com/works/identification-of-sources-and-loci-for-development-of-soyabean-glycine-max-l-merrill-cultivars-that-combine-bacterial-pustule-and-seed-decay-resistance-with-high-pod-clearance >.
BARNOR, MICHAEL . "IDENTIFICATION OF SOURCES AND LOCI FOR DEVELOPMENT OF SOYABEAN [Glycine max (L.) Merrill] CULTIVARS THAT COMBINE BACTERIAL PUSTULE AND SEED DECAY RESISTANCE WITH HIGH POD CLEARANCE" Afribary (2021). Accessed November 21, 2024. https://tracking.afribary.com/works/identification-of-sources-and-loci-for-development-of-soyabean-glycine-max-l-merrill-cultivars-that-combine-bacterial-pustule-and-seed-decay-resistance-with-high-pod-clearance