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在控制环境因子和遗传因子的条件下,以白花泡桐、毛泡桐、毛泡桐×白花泡桐和白花泡桐×毛泡桐的无性系为材料,运用物候学观察、杂交试验、树木逆境生理学试验、引种试验和反证法证明的方法研究了泡桐假二叉分枝机理。结果表明:冬季的低温胁迫和水分胁迫单独或共同的作用导致泡桐顶芽死亡。初步提出“低温—水分胁迫假说”(The hypothesis of low-temperature stress and water stress)作为泡桐假二叉分枝机理的理论解释。
In the control of environmental factors and genetic factors, Paulownia tomentosa, Paulownia tomentosa, Paulownia Paulownia × Paulownia and Paulownia Paulownia Paulownia clones as the material, the use of phenology observation, hybridization, tree stress physiological test, the introduction of the test And proof of the method of proof Paulownia bifurcation mechanism. The results showed that cold stress and water stress in winter, alone or in combination, led to the death of the top bud of Paulownia. The hypothesis of low-temperature stress and water stress was initially proposed as a theoretical explanation for the bifidal branching mechanism of Paulownia.