Breeding of A New Sesame Variety Jihangzhi 1 and Its Cultivation Technique

XU Gui-zhen et al(Institute of Cereal and Oil Crops,Hebei Academy of Agricultural and Forestry Sciences,Shijiazhuang,Hebei 050031)

Jihangzhi 1;Sesame variety;Breeding;Cultivation techniques

[Objective]The study aimed to introduce the breeding of a new sesame variety Jihangzhi 1 and its cultivation technique.[Method]Jihangzhi 1 was bred and selected by using the space breeding technology and through the ground systematic selection and breeding for many years by Institute of Cereal and Oil Crops,Hebei Academy of Agricultural and Forestry Sciences.The yield performance and the variety characteristic of Jihangzhi 1 were described and its main cultural technique was introduced.[Result]Production tests in 9 experimental sites located in 6 provinces indicated that Jihangzhi 1 showed the average yield of 1 118.1 kg/hm2 which was 10.71% higher than Jizhi 1.In continuous participation of national sesame variety area trial from 2008 to 2009,Jihangzhi 1 had the average yield of 951.15 kg/hm2,ranking the second among the varieties tested and it was 15.14% higher than CK variety Jizhi 1,with its yield increase accounting for 78% of the experimental sites.Jihangzhi 1 had the mean seed oil content of 55.21% and the mean protein content of 20.93%.The variety was resistant to charcoal rot with the incidence of 14.16% which was the lowest in the varieties tested.[Conclusion]The new variety characterized with high plant height,strong growth potential,large seed size,white seed coat and good commodity property and it was a new sesame variety integrated with high yield,good quality,disease resistance and wide adaptability,which is suitable to be planted in the main sesame-producing areas such as Hebei,Shanxi,northwest Henan and mid west of Liaoning provinces.