Authors : Qaisar Mahmood , Wu Dong Lei , Afsari Sharif Qureshi , Muhammad Rashid Khan , Yousaf Hayat , Ghulam Jilani , Imran Haider Shamsi , Muhammad Ashraf Tajammal and Muhammad Daud Khan
Abstract: Genetic studies were conducted on six marketable cultivars of wheat (Triticum aestivum L. emp. Thell) viz; Inqilab, Khyber 87, Soghat, Sarsabz, Rohtas 90 and Pak 81 and their three F1 hybrids; Khyber 87 X Inqilab, Rohtas 90 X Pak 81, and Soghat X Sarsabz in Pakistan. Data for various morphological and biochemical traits were taken and analyzed for heterosis, correlation and path co-efficient. Significant heterosis for grain yield, biomass, plant height, flag leaf area, spike length, spikelets per spike and 1000-seed weight, protein content, gluten, reducing sugars, fats and minerals was recorded in F1 for all the three crosses. Analysis of variance revealed significant sum of genetic variability for all the characters. Positive and significant correlation of grain yield was recorded with plant height, spike length and biological yield at the genotypic level. There was a positive and significant association between protein content and number of spikelets per spike and protein and gluten content at genotypic level. However, correlation between grain yield and 1000-seed weight was negative and highly significant. In general, more correlation coefficient was recorded at the genetic level as compared to phenotypic level. While improving the yield potential of wheat varieties under investigation, direct simultaneous selection based on plant height, spikelets per spike, biological yield, harvest index and protein content of kernel would be advantageous. This information will ultimately lead to the determination of suitable plant types in wheat (Triticum aestivum L. emp. Thell)
Qaisar Mahmood , Wu Dong Lei , Afsari Sharif Qureshi , Muhammad Rashid Khan , Yousaf Hayat , Ghulam Jilani , Imran Haider Shamsi , Muhammad Ashraf Tajammal and Muhammad Daud Khan , 2006. Heterosis, Correlation and Path Analysis of Morphological and Biochemical Characters in Wheat (Triticum aestivum L. Emp. Thell). Agricultural Journal, 1: 180-185.