بررسی و مقایسه مقدماتی عملکرد هیبریدهای جدید آفتابگردان در زرقان

‭Seventy eight sunflower hybrids derived from crosses between new CMS and : restorers in 2002 plus Azargol hybrid, Armaviresky and Zaria O.P.cultivars as : control varieties, 81 treatments, were evaluated in Zarghan station in 2003. ‬ص ‭Experimental design was a Simpel Lattice with two replications. Each plot consisted of four rows with 5.5 m lenght. Rows spacing was 60 cm and plants were 2Scm apart on rows. Morphological and agronomical traits were recorded during growing season. Yield and 1000 kernel weight measuerd after harvesting. Seed ~ sampels for detennination of oil perecentage were sent to chemical laboratory in Seed and. Plant Improvement Institue. Harvest area was 6 m2 from two middle lines of each plot. Data analyses and mean comparisons were made. The most suitable hybrids were selected for future experiments. Result showed that CMS 19*R-28-N CMS130*R-23-N , CMSI052/1'" R-22-N and CMSI052* R-28-N, hybrids had the h~ighest yield with 4875,4770,4729 and 4667 kglha ,respectivly. Key words:Sunflower, Hybrid, Yield‬