Speculations have it that phthalonitrile imparts flame retardancy on substrates. This study aimed to investigate the activities of phthalonitrile as flame retardant on 100% cotton fabric. The fabric samples tested were cut into 25:4 x 7 cm pieces, scoured, dried, and weighed. They were then impregnated with different concentrations of phthalonitrile in different solvents (benzene and acetone) and emulsion alongside alum dissolved in water. At the same time, the untreated fabric was used as a control. All the impregnated pieces of fabric were dried at room temperature and reweighed. The fabrics were subjected to add-on%, after flame time, after-glow time, and % char formation tests. The results showed that cotton-tested flame retardant properties increase with the increase in the concentration of phthalonitrile. Phthalonitrile has flame retardant properties on 100% cotton fabric.

Phenotypic variation among 15 accessions of Glycine max was assessed in this study. The experiment was laid out in a randomized complete block design with three replications. Thirteen quantitative morphological traits were measured using standard methods. Estimates of phenotypic and genotypic coefficients of variation, broad-sense heritability, genetic advance, correlations, and cluster analysis were performed on the quantitatively measured morphological traits. Moderate GCVs and PCVs were experienced in traits like plant height, peduncle length, stem girth and the number of leaves per plant, showing the presence of moderate variability among the studied accessions for selection. Hierarchical cluster analysis revealed that there is a relationship among the studied Glycine max accessions. Two-main clusters of TGm 275, and 14 other accessions were identified. Four accessions from Kashere clustered together. The closeness observed between KSH005 and TGm607, TGm767 and TGm1005 which were obtained from IITA showed that KSH005 could have been introduced as an improved variety to Kashere. The results from this research have shown that enough variability and genetic heritability exist in the studied traits among the tested Glycine max accessions.