CONSTANCY INVESTIGATION IN ADVANCED LINES OF COTTON (GOSSYPIUM HIRSUTUM L.) FOR YIELD UNDER VARIANT ENVIRONMENTS

Working group session: 
Germplasm and Genetic Stocks
Presentation type: 
poster
Authors: 
Iqbal, Muhammad Shahid; Riaz, Muhmmad; Mahmood, Khalid; Mahmood, Abid
Presenter: 
Iqbal, Muhammad Shahid
Correspondent: 
Abstract: 
The present study was carried out to investigate the stability performance in yield, adaptability and genotype × environment interactions of four promising advanced lines viz.; Cyto-124, BH-177, RH-650 and FH-326 along with one commercial cultivar FH-942. Seed cotton yield performance of five genotypes was evaluated over six locations (environments) in Punjab, Pakistan during 2013-14, using randomized complete block design with three replications. Data obtained were subjected to analysis of variance and stability analysis of Eberhart and Russell regression and evaluated on the basis of mean performance, linear regression (b), deviation from regression (S2d) and coefficient of variation (CV%). Genotype × environment interactions revealed that advance line FH-326 produced highest seed cotton yield, significant b value along with above stability performance (b<1). Results showed that FH-326 not only performed best under variant environments but also remained stable genotype in all tested locations. Furthermore FH-942 (standard cultivar) had general adaptability in all the tested locations for seed cotton yield.