ارزیابی ارقام و هیبریدهای آفتابگردان از نظر عملکرد دانه و روغن در شرایط دیم گرمسیر

This study was performed to evaluation grain yield, oil percent and important traits that identify high yielding and adaptable varieties for dry land areas. This experiment was conducted in Gachsaran agricultural rain fed research station in 2005-2006 growing season. In this study 8 cultivars received from SPII (Karaj). The cultivars planted in RCBD design with 4 replications each genotype was planted in 8 rows with 6 meters length and 50 cm row spacing. During growing season data were collected from some agronomical morphrphophysiological traits Simple analysis of varieties based on mathematical model design, was performed on the grain yield based on least significant difference (LS.D) method at 1&5% probability levels in comparing with check(Armaviresky). The result showed that 5 cultivars had more seed yield than check so that three cultivars in B class, the rest of cultivars in C-class. Megasun hybrid with 3.432 T/ha grain yield and 37.4% more than check recognized as the highest yield.