绵阳11系统品种抗条锈性研究

Studies on the Resistance of Mianyang 11 Wheat Cultivars to Stripe Rust of Wheat

绵阳11系统品种在生产上推广应用已11年,种植面积超过3000万亩,是我国当前种植面积最大的品种。通过调查与试验,查明该系统品种尚未发现有抗性丧失现象,并具有一定程度的苗期慢锈性和较强的成株期抗性,同时在高温下可以增强。因此,建议可继续推广应用,但应避免在高海拔山区种植,以利其苗期慢锈性和成株期抗性的充分发挥。

Mianyang 11 wheat cultivars have been used in wheat production for 11 years, and their sown acreage has been over two million hoctares. and at present, these cultivars are the cultivars with the largest sown areas in China. Through a series of surveys and experiments, it has been clarifiec that mianyang 11 cultivars have not lost their disease rasistance, but possessed to a certain extent, slow rust in the seedling stage and strong resistance of low infection type to stripe rust in adult stage and their rust resistance may be strengthened; under the high temperature conditions. Therefore, it is recommended that Mianyang 11 wheat eultivars be continually used in wheat production, but must be avoided being grown in mountain areas with a high altitude above sea level in order to maintain slow rusting in the seedling stage and the resistance in the adult stage.