不同光照条件对几种类型蔬菜呼吸强度变化的影响

为探明光照条件对番茄、西兰花、花椰菜和芦笋4种类型蔬菜呼吸代谢的影响,采用近室温（15℃）、亚低温（8℃）和适宜贮温（0～2℃）3种温度,分别对该4种蔬菜在黑暗和光照条件下的呼吸强度进行了对比研究。结果表明,光照对采后离体蔬菜的呼吸代谢作用有较大影响。在同一贮藏温度下,番茄、西兰花和芦笋置于光照条件下比黑暗条件下的呼吸强度低,光照降低呼吸代谢的效果明显;而花椰菜则受光照的影响较小,光照抑制呼吸强度的效果不显著;同时,光照对呼吸代谢的影响还与温度有关,一般情况下,贮藏温度越低,光照对呼吸强度的影响越小。

Effect of Different Illumination Condition on Respiration Rate of Vegetables

In order to verify whether the light has the influence on the respiration of tomatoes,broccoli,cauliflower,asparagus in vitro,adopt the following temperatures to each testing material respectively,near room temperature: 15 ℃,mild hypothermia: 8 ℃,appropriate storage temperature: storage temperature of 0 ℃,measure the respiration of vegetables at the same temperature in the light and dark,and respectively do the comparative study to the respiration rate of tomatoes,broccoli,cauliflower,asparagus in the dark and light.The results show that the light has greater influence on the respiration of vegetables,under the set temperature gradient,and compared to the dark,the illumination can reduce the respiration rate of tomatoes,asparagus and broccoli,but the influence on cauliflower is not significant,lightness control breathing intensity no significant,while the influence of illumination on respiration rate of isolated vegetables is also related with the storage temperature,normally,the lower the storage temperature is,the smaller influence of illumination on the vegetable respiration rate is.