种子在贮藏期间,时刻都受外界环境条件的影响,超过一定的贮藏期限,终将丧失其生活力。种子生活力的降低首先反映在发芽率降低,从而降低其种用价值。这一系列生理过程,势必引起种子及发芽后体内酶系统发生变化。曾有报道,随着种子生活力的丧失,与呼吸有关的酶类,如过氧化氢酶、 During the storage of seeds, the moment is affected by the external environmental conditions, beyond a certain shelf life, will eventually lose its viability. The reduction of seed viability is first reflected in the decrease of germination rate, thus reducing its seed value. This series of physiological processes will inevitably lead to changes in the seed and after in vivo enzyme system. It has been reported that with the loss of viability of seeds, respiratory-related enzymes such as catalase,