Genotypic variation for yield and morphological traits in

ABSTRACT Genetic variability is the main basis of improvement in crops. An experiment comprising fifteen old and new wheat varieties was planted in randomized complete block design with three replications at the Agricultural Research Farm of NWFP Agricultural University, Peshawar during crop season, 2003-2004. Data were recorded on yield and some other morphological traits. Statistical analysis of the data was carried out and means were separated using the least significance difference test. Correlation coefficients were also determined. Analysis of variance revealed that the varieties differed significantly for days to 50% heading, days to 50% anthesis, plant height and grain yield ha -1 . However, differences were non-significant for physiological maturity, biological yield and harvest index. Days to 50% anthesis showed significantly positive correlations with days to 50% heading, days to maturity and grain yield. Grain yield also exhibited significantly positive correlation with biological yield

GENOTYPIC VARIATION FOR YIELD AND YIELD RELATED TRAITS AND THEIR CORRELATION STUDIES IN WHEAT

ABSTRACT The main basis of improvement in crops is the development of desirable genotypes. An experiment consisting of fifteen wheat genotypes was planted in Randomized Complete Block Design (RCBD) with three replications at the Agricultural Research Farm, Malakandher, NWFP Agricultural University Peshawar during 2003-04. Data were recorded on some important yield related traits. Statistical analysis was carried out and the means were separated by the Least Significant Difference (LSD) test. Significant differences were observed among the genotypes for the number of productive tillers m -2 and grain yield. However, the differences were not significant for the characters of grains spike -1 , spikelets spike -