Cotton (Gossypium hirsutum ssp.) belongs to the genus Gossypium from the family Malvaceae. About 100 genera are in the family Malvaceae and about 1500 species. It is grown worldwide for oil, seed, and fiber. A major problem in cotton cultivation is a drought that’s why this experiment was planned to evaluate the cotton mutants for drought tolerance. A variety of cotton Cyto-155 was mutated with gamma rays at different intensities such that 20kR, 25kR, 30kR, and 35kR, to obtain some genetic variation. Mutated seed along with non-mutated of that cotton variety was sown in split plot layout under randomized complete block design with three replications, under the normal irrigated condition with six irrigations and water stress condition with two irrigations at maturity data was collected for plant height, number of monopodial branches, number of sympodial branches, bolls per plant, boll weight, seed index, GOT%, lint index, seed cotton yield, relative water content and excised leaf water loss.Results showed a highly significant effect of genotype and water regime on all observed traits. Water regime × genotype interaction was also highly significant for plant height, number of sympodial branches, seed index, boll weight, lint index, and excised leaf water loss. Water regime × genotype interaction was non-significant for number of monopodial branches, bolls per plant, GOT%, seed cotton yield, and relative water content. Mean comparison indicated that seed mutated at 30kR and 35kR performed well for all yield-related traits in both irrigated conditions.

Wheat is highly self-pollinated crop and main staple food of the world. Yield is one of the main breeding objectives in the wheat crop. Plant breeders are focusing on the development of new lines with increased yield, resistant against biotic and abiotic factors and having more nutritional values. The goal of the current research was to identify acceptable crossings for further investigation by determining the type of gene action (genetic effects) and combining ability of parental genotypes for morphological features. This approach was used to evaluate three lines, namely Ujala-2016, Johar-2016, Galaxy-2013 and four testers’ viz. XJ22, XJ23, XJ24 and XJ25. Collected data were subjected to line × tester analysis. Among parents as lines genotype Johar-2016 found good general combiner for studied traits. While among testers XJ25 proved to be the best general combiner for studied traits. Similarly, cross combinations hybrid XJ25 × Galaxy-2013 performed best as specific combiner. It was noticed that SCA variance was greater than GCA variance for all factors studied in wheat except for grains/spike. The superior genotypes and crosses can be further tested in yield for development of improved wheat varieties.