Correlations and Path Analysis for Agronomic and Productivity in Bread Wheat ( Triticum aestivum L. ) by Effect of Seeding Rates | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 15, Issue 4, December 2015, Pages 32-41 | ||
| Author | ||
| Wael M. Jassim | ||
| Abstract | ||
| This experiment was conducted in the Field Crops Dept., College of Agriculture , University of Tikrit , during 2012 – 2013 season . Using split plot design with six varieties ( Tamo Z 2 , Tamo Z 3 , IPA 95 , IPA 99 , Abu Ghraib 3 & Al-Rashed ) as subplots & three seeding rates (80 , 160 and 240) Kg / ha as main plots with three replicates were used to determine the most important characters which can be used as effective selection criteria for grain yield improvement . phenotypic , & other components characters were determined : flag leaf area , plant height , number of spikes / m2 , number of grains / spike & 1000 grain weight . Path coefficient analysis carried out to partition the phenotypic& genotypic correlation coefficients to direct& indirect effects . The results showed that number of spikes /m2height correlated with grain yield for all seeding rates . Path coefficient analysis indicated that number of spikes / m2 have the most positive direct effect on the yield for all seeding rates , so the number of spikes /m2 character can be used as a selection criteria for grain yield in bread wheat. | ||
| Keywords | ||
| wheat correlations; Path analysis; seeding rates | ||
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