保鲜剂对肾蕨叶瓶插的生理影响

肾蕨叶在瓶插期中，体内水分，溶性糖和脯氨酸含量均呈下降趋势，而过氧化物酶活性不断上升。保鲜剂ＡｇＮＯ３５０ｍｇ／１＋蔗糖２０ｇ／１＋抗坏血酸１５０ｍｇ／１和ＡｇＮＯ３５０ｍｇ／１＋蔗糖２０Ｇ／１＋抗坏血酸１５０ｍｇ／１＋赤霉素５０ｍｇ／１处理，能提高切叶体内水分和可溶性糖含量，后者处理的效果更佳。水分，可溶性糖，脯氨酸含量和过氧化物酶活性间的变化具一定相关性。

PHYSIOLOGICAL EFFECTS OF PRESERVATIVES ON CUT FERN (NEPHROLEPIS CORDIFOLIA)DURING ITS VASE-HOLDING LIFE

Water, soluble sugars and proline content in cut ferm (Nephrolepis cordifolia) normally declined and peroxidase activity increased during its vase-holding life. AgNO_350 mg/l+sucrose 20g/l +vitamin C 150 mg/l (treatment A) and AgNO_350 mg/l + sucrose 20 g/l+vitamin C 150 mg/l+gibbrellin 50 mg/l (treatment B) enhanced water and soluble sugar contents and maintained them at a plateau before a final decline. The preservative treatments also inhibited the rise of peroxidase ativity of the cut fern foliage. Treatment B had a more pronounced effect than treatment A. Some correlation was observed among water, soluble sugars, proline and the activity of peroxidase in their variation.