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在陕西关中的杨陵及陕北的榆林两地建立试验地,对不同产地苗木进行带菌诱发试验和区域性栽植,研究了北京杨、陕林4号杨、毛白杨、69杨和新疆杨等杨树在不同区域性气候中的生长状况和对杨树溃疡病的抗性变化。研究结果表明,苗木来源不同,其带菌量不同,栽植后发病率也就不同;造林地区溃疡病菌存在量不同,即使苗木带菌量相同,其造林后发病率亦不同;不同树种在同一环境条件下发病情况不同,同一树种在不同环境条件下感病程度也不相同,为选择适生的杨树品种造林提供了理论依据
Yangling in Shaanxi Guanzhong and Yulin in Shaanxi Province to establish experimental sites for different regions of seedling induction test carried out and regional culture of Beijing Yang, Shanyan 4 Poplar, Populus, 69 poplar and Xinjiang Poplar Tree growth in different regional climates and resistance to poplar canker disease. The results showed that the seedlings of different sources, its different amount of bacteria, the incidence of planting is also different; afforestation areas exist in different amounts of ulcer bacteria, even with the same amount of seedlings, afforestation rate is also different; different tree species in the same environmental conditions The incidence of different conditions, the same tree species in different environmental conditions are not the same level of susceptibility, selection of suitable poplar species afforestation provides a theoretical basis