Caractérisation de la diversité phénotypique et génotypique du Sorgho pluvial dans la zone soudano sahélienne du Cameroun

Abstract

Assessment of genotypic and phenotypic diversity of the rain-fed Sorghum in the sahelian zone of Cameroon. Objectives: This study was conducted to determine the genotypic and phenotypic diversity in the accession of the rain-fed Sorghum in the sahelian zone of Cameroon and to estimate the genetic parameters, which can be used to create new varieties of Sorghum in Cameroon. Methodology and results: Forty-four (44) accessions were grown in a randomized complete bloc design with three replications. The results showed there was a large morphological diversity among the Sorghum accessions. Furthermore, these diversities were organized around vegetative and yield characters, which divided the accessions into three groups. The individual in group three (3) showed interesting performance in term of plant height and grain yield parameters. The analysis of genotypic and phenotypic parameters showed that there was low influence of the environmental factors on the performances of the accessions. Conclusions applications of findings : There was a the low difference between the phenotypic and genotypic variances for all characters. High broad sense heritability estimates recorded for all characters and the expected genetic advance were variables. The high expected genetic advance observed in the vegetative characters are better in the yield characters. The results from this study provide useful information in selection of parents that breeders could exploit in sorghum improvement program in Cameroon.

Characterization of cultivated pumpkin (Cucurbita moschata Duchesne) landraces for genotypic variance, heritability and agro-morphological traits

“…These results are consistent with Abdein et al (2017) on pumpkin, Dar and Sharma (2011) on tomato and Ibrahim (2012) on melon. The difference between phenotypic and genotypic variance for all traits was due to the environmental factors on the gene expression controlling these traits ( Danbe et al, 2018 ). The coefficient of variation simply indicates the extent of total variability present in a trait ( Béninga, 2007 ).…”

“…In this study, broad heritability ranged from 0 to 99.44%. High heritability of traits reflects the poor influence of environmental factors on their expression ( Danbe et al, 2018 ). In this case, the phenotype truly expresses the varieties genotype ( Visscher et al, 2008 ).…”

Assessment of interspecific hybridization between wild beet Beta vulgaris L. subsp. maritima and cultivated sugar beet under Moroccan conditions

“…Resultant PCA indicated a large variation in interspecific hybrid groups. This analysis is commonly used as an efficient tool to identify genetic diversity among the populations and genotypes in beet (Viard et al, 2004;Galewski and McGrath, 2020) as well as in several other species (Danbe, et al, 2018;Karagoz et al, 2020). Obtained hybrid characterizations revealed a broad phenotypic variation.…”

Development of sorghum‐based shortbread biscuits from “muskwari” flour

“…The Far North region of Cameroon is the first nationwide in cereal production (Guei, Barra, & Silue, 2011). This is due to its high production of sorghum, which averages 778,112 tons, 26.92% of national grain production (Danbe et al, 2018; Weltzien, Rattunde, Mourik, & Ajeigbe, 2018). Despite this, the use of this cereal lack diversification (Anglani, 1998; Miafo, Koubala, Kansci, Saha, & Fokou, 2016; Vunyingah & Kaya, 2016).…”