بررسی اثر تاریخ کاشت بر عملکرد و اجزا عملکرد ارقام گلرنگ در کشت پاییزه

In order to date planting effect study on grain yield and oil of cultivars of corthamus and determinig of suit date planting in sistan area. This study with 3 cultivars ( LRK.l, local miandoab, IL.l11) and four planting date ( 15, 30 Mehr and 15, 30 Aban) was conducted as split plot in base of (RCBD) with 4 replication in during two year. Main plot is planting date and subplot is cultivars and toaits .include: germination date, flowreing date, final date flowering, harvest date, number boll, number seed in boll, 1000 seed weight, pest and diseases evaluated. Foa determine of oil percent 40 gr seed sent to seed and plant inistitute improvement. Results showed no signification difference there are among cultivars. The most yield grain belongto first planting date with 1750/083 kg. Among cultwars local miandoab. Rather than IL.lll in first planting date ( 15 Mehr) with mean 2521 kg/ha eas after and LRK.l in fowrth planting date (30 Aban) with 2328 kg/ha had the least yield. Key words: carthamus, planting date, yield