Abstract:

To select new varieties of oil sunflower suitable for different ecological regions in Hebei Province, multi-site comparative tests of oil sunflower varieties were carried out in Zhangjiakou, the high cold region of northern Hebei, Shijiazhuang, the Taihang mountain shallow hilly area in central and southern Hebei, and Raoyang county of Hengshui city, the Taihang mountain piedmont plain of southern Hebei, to analyze the main agronomic traits and yields of 9 oil sunflower varieties for the yielding ability and stability. The results showed that: (1) the growth periods of ‘F60’, ‘T562’ and ‘Precocious Dwarf Head’ were shorter than that of the control, while the others were longer than that of the control; (2) the plants of ‘Xinkui No.23’ and ‘Xinkui No.7’ were tall, and that of ‘Precocious Dwarf Head’ was relatively short; (3) grains of ‘T562’ were good, its 100-grain weight was the heaviest and seeds of ‘HZ001’ were small and light; (4) in terms of production, the yield of all tested varieties increased, among them, the fertility effects of ‘T562’ and ‘F60’ were the highest, the yield of ‘T562’ was the highest in Zhangjiakou and Shijiazhuang, and ‘F60’ had the highest yield in Raoyang; (5) ‘Xinkui No.7’ and ‘F60’ had the lowest variability and the strongest stability; ‘T562’, ‘F60’, ‘Xinkui No.7’ and ‘Gailiang No.7’ and ‘S667’ were suitable for Zhajiakou, and ‘F60’, ‘Precocious Dwarf Head’, ‘Xinkui No.7’, ‘HZ001’and ‘Xinkui No.23’ were suitable for Shijiazhuang and Raoyang; (6) the comprehensive evaluations of ‘T562’ and ‘F60’ were good, while those of ‘Precocious Dwarf Head’, ‘Xinkui No.7’, ‘HZ001’ and ‘Xinkui No.23’ were average, and the comprehensive evaluation of ‘Gailiang No.7’ and ‘S667’ were poor.

Key words: Oil Sunflower, Hebei Province, Multi-point Comparative Test, Yield, Comprehensive Evaluation