摘要
Seed germination process has closely relation with material transformation and energy exchange within the seed. Study on its thermal effect is important for understanding the mechanism and the influencing factors of the seed germination. The thermogenetic curves of seed germination ofRobinia pseudoacacia was measured by a new-type conductive microcalorimeter made in Wuhan University. The relationship was analyzed between the germination thermogenetic regulation and seed germination physiology. The thermogentic curves were further analyzed by thermokinetic theory to obtain the dynamic parameters and the thermokinetic model on seed germination ofRobinia pseudoacacia. The relationship of the thermogenetic power (μ w) and the germination time(h) of the germination process of 20 grainsRobinia pseudocacia seeds at 25°C wasP=208.77/[0.1937+0.8063exp(?0.06563t)]
种子的萌发与物质转化和能量交换紧密相关,对种子萌发过程中的热效应进行研究,有助于认识种子的萌发机理及其影响因素。采用武汉大学研制的新型热导式微量量热计测定了刺槐种子的萌发生热曲线。分析了其萌发生热规律与种子萌发生理之间的关系。并根据动力学原理对其生长阶段的热谱进行分析,建立了刺槐萌发生长的动力学模型,25℃ P=208.77/[0.1937+0.8063exp(-0.06563t)]
基金
National Nature Science Foundation (30070200).
