مقایسه ژنوتیپ های خاردار و بدون خار گلرنگ تحت شرایط دیم در مزارع کشاورزان خراسان شمالی

Due to importance of safflower and its role as an important oilseed crop in drylands of country and in order to study its situation in dryland farming of province, this study carried out during 2012-2013 with 8 safflower promising genotypes regarding adaptability trials in cold drylands, in spring planting of two locations of Northern Khorasan province viz. Bojnord and Shirvan in farmer fields under dryland conditions. Combine analysis of variances showed that there is a significant difference between genotypes in terms of thousand kernel weight and grain yield. Mean comparison of experimental genotypes showed that like separated analysis for two regions of Bojnord and Shirvan, also in combine analysis three genotypes (line with temporary number 47 with 445.65 Kg/ha, Faraman with 441.75 Kg/ha and Syrian with 427.3 Kg/ha compare with other genotypes had higher grain yields and relative efficiency which would be released for cold drylands after demonstration and seed multiplication. These three genotypes are belonging to spineless safflower genotypes.