【摘要】 种子这一生命材料的传热传质，已从宏观迈向微观，从整体迈向细胞、原生质、细胞器、分子膜的水平发展，并研究了种子的生理生化特性与规律，文中用透射电镜对未干与干燥的白菜种子进行了９６个切片观察表明，仅在细胞壁发现有皱褶．对初含水率为１３％，经２小时、４５℃干燥的白菜种子其α淀粉酶相对活性下降了５．８％，研究表明酶的活性不仅与温度有关，还是初含水率与干燥时间的函数。更多还原

【Abstract】 The research on heat and mass transfer of seed, which was the life material, was developed from macroscopic to microcosmic, from the whole to cells, protoplasm, cell implement, molecule membrane and the biochemistry characteristics and laws of seed has been investigated. The observation on the 96 slice of wet and dry Chinese cabbage seed by transmit electron microscope demonstrated that the fold was found only on the cell cliff for the water concentration of beginning at 13% the α amylase relative viability of Chinese cabbage seed will be decreased by 5.8% after 2 hours 45℃ dry cause. The studies demonstrated that the enzyme viability was related not only with the temperature, but also with the water concentration of beginning and the dry time.更多还原