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向日葵是黑龙江省主要的经济作物,近年来由于种植结构调整和向日葵种植区域自然灾害频繁,导致向日葵播种面积有所下降。黑龙江省向日葵种植地区主要分布在齐齐哈尔市和绥化市,一方面在向日葵开花期、成熟期降雨集中,菌核病发生严重,导致产量下降,另一方面在向日葵收获期由于降雨量较大、温度低,使向日葵收获、晾晒困难,影响了向日葵籽实的品质和质量。因此,急需尽快选育出早熟、抗病、高产、适宜收获的向日葵杂交种。
Sunflower is the main cash crop in Heilongjiang Province. In recent years, due to the adjustment of planting structure and the frequent natural disasters in the sunflower planting area, the sunflower sown area has declined. Heilongjiang Province sunflower planting areas are mainly distributed in Qiqihar and Suihua City, on the one hand in the flowering sunflower, mature rainfall, sclerotinia serious, leading to decline in yield, on the other hand in the sunflower harvest due to rainfall, temperature Low, sunflower harvest, drying difficulties, affecting the quality and quality of sunflower seeds. Therefore, the urgent need to bred early, disease-resistant, high yield, suitable for harvest sunflower hybrids.