1. Characteristics of urban geologic hazard are that mans activity plays an important role in bourgeon, development and form process of geologic hazard. 城市地质灾害的特点在于，地质灾害的萌发、发展和形成过程中人类活动起了非常重要的作用。
2. There were remarkable variations in the shape, volume, location and number of bourgeon-hole channels and veins on surface of pollen among pollens of TRP. 四倍体刺槐自身花粉粒的形状结构之间表现出丰富的变异：体积与形状多样，萌发孔沟的数量及位置不固定，外壁表面的纹饰特征彼此不同等等；
3. JA content in the leaves and the flower buds in male-sterile line was lower than its normal variety, as endogenous pollen bourgeon regulator, JA might restrain the bourgeon of pollen. 无论是叶片还是花蕾，JA含量不育系低于可育系，JA可能作为内源的花粉萌发调节剂抑制花粉的萌发，可以认为，JA含量在不育系的降低可能与亚麻雄性不育的发生有某种联系。
