Correlation and path coefficient analysis for yield and its components in Dragon’s head (Lallemantia iberica Fish. et Mey.)
Paper Details
Correlation and path coefficient analysis for yield and its components in Dragon’s head (Lallemantia iberica Fish. et Mey.)
Abstract
The associations of yield and its components offer important information in breeding plants. A study was conducted at the experimental field of the Research Farm of the Faculty of Agriculture, University of Tabriz, Iran in 2012, on Dragon’s head (Lallemantia iberica Fish. et Mey.), to determine the association of yield and its components. The association was analyzed by correlation coefficient, and further subjected by path coefficient analysis to estimate direct and indirect effects of each character on seed yield. Plant characters such as biological yield, harvest index, grain per plant, capsule number, number of grain per capsule, lateral stem and 1000 grain weight were main selected measurements for the data analysis. Positive and significant correlation were found between the biological yield and seed yield (0.985**). Stepwise multiple linear regression interpretation also indicated that maximum of variation in seed yield attributed to variation which arose from harvest index and biological yield. The results of path analysis strongly suggested that biological yield and harvest index contain positive direct effect on seed yield. Based on the results of this experiment, the importance of harvest index and biological yield can be seen for selection, in breeding programs, with the goal of improved Dragon’s head seed yield under the semiarid conditions.
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Parisa Aghaei-Gharachorlou, Safar Nasrollahzadeh, Jalil Shafag-Kolvanagh (2014), Correlation and path coefficient analysis for yield and its components in Dragon’s head (Lallemantia iberica Fish. et Mey.); JBES, V4, N4, April, P157-163
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