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Articles by Iftikhar Khalil
Total Records ( 2 ) for Iftikhar Khalil
  Masood Jan , Ghulam Hassan , Iftikhar Khalil and Raziuddin
  An 8x8 full diallel set of bread wheat (Triticum aestivum L.) was studied for heterosis and heterobeltiosis. The magnitudes of heterosis (mid-parent) and heterobeltiosis (better-parent) from F1 were calculated for days to heading, flag leaf area, plant height, spike length, days to maturity and harvest index. All the 56 F1 hybrids and their parents were planted in a randomized complete block design in three replicates. Out of the 56 F1 hybrids, 18 and 16 hybrids for days to heading; 11 and 2 for flag leaf area; 24 and 15 for spike length; 8 and 3 for days to maturity and in 3 and 1 for harvest index expressed significant heterosis and heterobeltiosis, respectively. Maximum limits of heterobeltiosis for flag leaf area, spike length, harvest index, plant height, days to heading and days to maturity were 22.3, 13.03, 11.23, 3.27, 2.60 and 1.82%, respectively. Among parent cultivars, Takbeer, Inqilab-91, Tatara and Idaho-458 proved to be superior combiners. Populations of Tatara x Khattakwal, Takbeer x Inqilab-91, Idaho-458 x Fakhre Sarhad, Fakhre Sarhad x Takbeer and Ghaznav-98 x Takbeer were the best for most of the traits and their use in breeding programmes is suggested.
  Masood Jan , Farhatullah , Ijaz Begum , Ghulam Hassan and Iftikhar Khalil
  The objective of this study was to determine magnitude of heterosis for yield and oil content in sunflower. For this purpose, a study was conducted during 2003-2004 at NWFP Agricultural University, Peshawar on a diallel cross of sunflower to find out the extent of heterosis for achene yield (kg ha-1) and oil content (g kg-1). Heterosis was observed for these both parameters. The magnitude of heterosis of F1 over mid-parent was 1.29 in direct crosses while 3.73% in reciprocal crosses for achene yield ha-1. Similarly the magnitude of heterosis for oil content was 31.19 in direct crosses while this magnitude was 5.71% in reciprocal crosses for oil content in sunflower. The study showed that the direct and reciprocal crosses showed totally different magnitude of heterosis for both traits studied. In cross combinations heterosis for both traits was more in those crosses where parents were phenotypically at distance.
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