【摘要】 本文运用耗散结构理论,根据菠萝寒害机理建立了寒害模型并对该模型作了动力理论分析。结果表明,菠萝寒害状态依赖于寒害期间光合作用、淀粉水解和呼吸作用这三个过程的反应速率系数。当它们满足某一特定条件时,反应中间产物出现振荡行为,寒害趋缓;否则,寒害加剧。这一特点类似于细胞生物膜寒害。最后我们还对菠萝寒害作了数值模拟。更多还原

【Abstract】 This paper proposes a model for PCI based on the mechanisms of it using dissipative structure theory, and the model is dynamically analysed. It is shown that the states of PCI depend on the rates of photosynthesis, amylum hydrolysis and respiration. When the rates satisfy certain conditions the oscillatory behaviour may occur, which will decrease PCI, otherwise PCI will be increased. This feature of PCI is similar to that of cold injury of biomembranes of a cell. Finnally, the numerical simulation for PCI is made.更多还原