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以葎草(Humulus scandens)、五叶地锦(Parthenocissus quinquefolia)、地锦(Parthenocissus inserta)、凌霄(Campsis grandiflora)等植物一年生功能叶片为试材,采用电导法配合Logistic方程对4种藤本植物的耐热性进行研究,以探明不同种类藤本植物对高温的耐受性,为藤本植物在北方城市以及山体的立体绿化提供参考依据。结果表明:4种藤本植物叶片细胞伤害率随着处理温度的升高,呈现“慢-快-慢”的增长趋势,呈典型“S”型,并且4种藤本植物细胞伤害率经显著性检验均符合Logistic方程。4种藤本植物的高温半致死温度介于59.50~64.54℃,其中凌霄的半致死温度最高,达到64.54℃,而葎草的半致死温度最低,为59.50℃,4种植物均具备较好的耐热性。4种植物耐热性由强至弱依次为凌霄、地锦、五叶地锦、葎草。
The annual leaves of Humulus scandens, Parthenocissus quinquefolia, Parthenocissus inserta, Campsis grandiflora and other plant annual leaves were used as test materials. Four kinds of vines Heat-resistant study to determine the different types of vines to high temperature tolerance for the liana in the northern city and the mountains provide the basis for three-dimensional greening. The results showed that the cell injury rate of four vines increased with the increase of the treatment temperature, showing a “slow - fast - slow” trend, showing a typical “S” shape, and the damage rate of four vines After significant test are in line with Logistic equation. Four kinds of vines at a high temperature lethal temperature ranged from 59.50 to 64.54 ℃, of which Peak had the highest lethal temperature of 64.54 ℃, while the lowest lethal temperature of Ephedra was 59.50 ℃, all of the four plants had good Heat resistance. Four kinds of plant heat resistance from strong to weak, followed by Peak, to Kam, five leaves to Kam, Humulus.