Investigate the relationship and path coefficient analysis between yield and yield components of canola cultivars
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 22
Abstract
In order to investigate the relationship between traits and analysis to causal relationships in canola, an experiment was conducted on 7 canola cultivars in a randomized complete block design with four replications in greenhouse in Islamic Azad University of Rasht in October, 2010. The statistical analysis of the survey included 20 important traits such as grain yield sodium, potassium and calcium percent, sodium / potassium,, ، ، ،height, root length, number of pods per plant, number of pods per main stem, pods length per main stem, number of seeds per main stem, pods weight per main stem, root weight, shoot organ weight, seed weight and biological yield. Simple correlations between traits measured in canola showed that the grain yield has positive and significant correlation with the percentage of shoot organ Ca, harvest index, shoots organ weight and hundred grain weights and it has negative and significant correlation with the pod length in the main stem. Grain yield had the highest correlation (0.96) with hundred grain weight between traits. Multiple regression analysis by stepwise for grain yield showed that the plant height and hundred grain weight entered the model and overall, explained 94.8 percent of yield variation. The effective of these two traits were significant on the yield at the 1% level. Also, the partial regression coefficients indicated hundred grain weight had direct relationship with the yield, however, the relationship between plant height with the grain yield was inverse. So the most important traits as selection criteria to improve the grain yield determined respectively hundred grain weight and plant height.
Authors and Affiliations
Ali Reza Asghari
Keywords
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