关键词: 结实率, 结实率

Abstract: Herbicides, Shima especial, often cause phytotoxicity to wheat in the process of chemical weeds control in wheat field before winter; therefore it is extremely necessary to find ways to recover wheat harmed by herbicide. Recovery effect of Qishanbao, a biologic of marine oligosaccharide, on wheat harmed by Shima was studied through foliar spraying Qishanbao on Shima harmed wheat plants. The wheat harmed by Shima began to show difference from untreated control in many ways 7 days after treatment. The height, the number of green leaves and the secondary roots of treated wheat plants were significantly higher than that of untreated control wheat plants 25 days after treatment. The yield in treated wheat field increased by 549.30 kg/hm2 compared with untreated wheat field. Meanwhile, the grain quality of treated wheat was improved to a certain extent, stable time increased by 15.7% , water absorption decreased by 1.4% compared with untreated control. However, there was no obvious differences in hardness, sedimentation value, flour yield and extensograph parameter. Using Qishanbao on herbicide harmed wheat could extremely release the degree of harm and increase wheat yield. It could also improve grain quality to a certain extent.