Genotypic correlation

Ten accessions of sunflower were evaluated for achene yield and its related traits. The experiment was laid out following a randomized complete block design with three replications. Observations were recorded on quantitative traits i.e. plant height, leaf area, head diameter, 100 achene weight, achene weight per plant, stem girth, internodal distance and descriptive traits (Leaf shape, head angle, achene colour, achene stripes and seed sizes). The data were subjected to analysis of variance, correlation and path coefficient analysis to evaluate the genetic variability in the breeding material and to estimate association among various traits. Correlation analyses indicated that seed weight per plant and 100 seed weight was found to be positively correlated with all the traits studied except for internodal distance. Direct and indirect effects of various quantitative traits on achene yield per plant was observed. Plant height, leaf area, head diameter and internodal distance had direc...

This experiment was performed to evaluate the correlation between grain yield and other characteristics of 20 cultivars and advanced breeding lines of barley in the Research Station, Agricultural collage, Shiraz University, Shiraz, Iran. The experimental design was a randomized complete block with four replications. Biological and grain yields and yield component were measured. Genotypic and phenotypic variation, mean comparison, correlation coefficient, regression and Path analysis were used for analysis of data. The Path analysis showed that the effects of spikes per square meter, kernel weight on grain yield were significantly different (p . Also
the results showed spikes per square meter had a negative correlation with kernels per spike and kernel weight. Regression analysis confirmed that kernel per spike is the most important yield component and increasing it can be improved the grain yield.

Ten accessions of sunflower were evaluated for achene yield and its related traits. The experiment was laid out following a randomized complete block design with three replications. Observations were recorded on quantitative traits i.e. plant height, leaf area, head diameter, 100 achene weight, achene weight per plant, stem girth, internodal distance and descriptive traits (Leaf shape, head angle, achene colour, achene stripes and seed sizes). The data were subjected to analysis of variance, correlation and path coefficient analysis to evaluate the genetic variability in the breeding material and to estimate association among various traits. Correlation analyses indicated that seed weight per plant and 100 seed weight was found to be positively correlated with all the traits studied except for internodal distance. Direct and indirect effects of various quantitative traits on achene yield per plant was observed. Plant height, leaf area, head diameter and internodal distance had direc...

Ten accessions of sunflower were evaluated for achene yield and its related traits. The experiment was laid out following a randomized complete block design with three replications. Observations were recorded on quantitative traits i.e. plant height, leaf area, head diameter, 100 achene weight, achene weight per plant, stem girth, internodal distance and descriptive traits (Leaf shape, head angle, achene colour, achene stripes and seed sizes). The data were subjected to analysis of variance, correlation and path coefficient analysis to evaluate the genetic variability in the breeding material and to estimate association among various traits. Correlation analyses indicated that seed weight per plant and 100 seed weight was found to be positively correlated with all the traits studied except for internodal distance. Direct and indirect effects of various quantitative traits on achene yield per plant was observed. Plant height, leaf area, head diameter and internodal distance had direct positive effect on achene weight per plant while stem girth and 100 achene weight had negative direct effect on achene weight per plant. It is suggested that achene yield may be improved by improving the head diameter, leaf area, internodal distance and 100 achene weight. These characters may be used as a selection criterion for future breeding programme.

Ten accessions of sunflower were evaluated for achene yield and its related traits. The experiment was laid out following a randomized complete block design with three replications. Observations were recorded on quantitative traits i.e. plant height, leaf area, head diameter, 100 achene weight, achene weight per plant, stem girth, internodal distance and descriptive traits (Leaf shape, head angle, achene colour, achene stripes and seed sizes). The data were subjected to analysis of variance, correlation and path coefficient analysis to evaluate the genetic variability in the breeding material and to estimate association among various traits. Correlation analyses indicated that seed weight per plant and 100 seed weight was found to be positively correlated with all the traits studied except for internodal distance. Direct and indirect effects of various quantitative traits on achene yield per plant was observed. Plant height, leaf area, head diameter and internodal distance had direc...

This experiment was performed to evaluate the correlation between grain yield and other characteristics of 20 cultivars and advanced breeding lines of barley in the Research Station, Agricultural collage, Shiraz University, Shiraz, Iran. The experimental design was a randomized complete block with four replications. Biological and grain yields and yield component were measured. Genotypic and phenotypic variation, mean comparison, correlation coefficient, regression and Path analysis were used for analysis of data. The Path analysis showed that the effects of spikes per square meter, kernel weight on grain yield were significantly different (p . Also the results showed spikes per square meter had a negative correlation with kernels per spike and kernel weight. Regression analysis confirmed that kernel per spike is the most important yield component and increasing it can be improved the grain yield.