Genetic variability among sorghum accessions from the Sahelian agroecological region of Burkina Faso

Abstract

The authors collected Sahelian sorghum landraces of Burkina Faso in 1984 and 74 of these accessions were characterized in 1985-1986 at Gampela in Burkina Faso (West Africa). The five races of cultivated sorghum were represented in this zone but 63.5% of the accessions were Guinea type. Great intra-and inter-accession variability was found. Plants were tall and had long panicles and small to intermediate seeds. There was a strong association between days-to-flowering, number of internodes, panicle length and height. The 100-kernel weight showed an antagonism with days to flowering and tillering. Multivariate analyses were made which enabled the accessions to be classified into four groups. The group most adapted to the sahelian zone, 'sahelian group', was semi-late, developed intermediate size of vegetative organs, had moderate tillering and had the best yield per plant.

Changes in the diversity and geographic distribution of cultivated millet (Pennisetum glaucum (L.) R. Br.) and sorghum (Sorghum bicolor (L.) Moench) varieties in Niger between 1976 and 2003

“…In 1976 as in 2003, four of the five basic races and four of the ten intermediate forms were significantly represented among the collected accessions. In other West African countries such as Senegal, Burkina Faso, Mali or Nigeria, this racial diversity is dominated by the guinea race (Viguier 1947;Scheuring et al 1980;Zongo 1991;Zongo et al 1993).…”

Genetic diversity assessment in Somali sorghum (Sorghum bicolor (L.) Moench) accessions using microsatellite markers

“…India and China are considered secondary centres of diffusion (Doggett 1988). Previous studies have detected a high level of phenotypic diversity in sorghum landraces coming from many developing countries, highlighting their central role in local subsistence agriculture (Damania and Rao 1980;Prasada Rao et al 1989;Zongo et al 1993;Appa Rao et al 1996Teshome et al 1997;Li and Li 1997;Ayana and Bekele 1998Chivasa et al 2000;Friis Hansen 2000;Grenier et al 2004;Geleta and Labuschagne 2005;Manzelli et al 2005).…”

Genetic diversity study of sorghum (Sorghum bicolor (L.) Moenc) genotypes, Ethiopia

“…These simple observable morphological characters are the useful tools for primary genetic diversity study as they provide a quick and useful approach for assessing the range of diversity in the crop species. Over the years, a number of studies have dealt with estimating genetic diversity in cultivated sorghum using morphological traits [16][17][18][19][20][21][22].…”