不同袋型、光照强度和温度对苹果果实表皮细胞膜特性的影响

本试验以红富士苹果为试材，采用6种果袋和2种光照强度及温度的组合处理，研究果实所处微域环境及其表皮组织生理指标的变化。研究结果表明：自然条件下，黑色袋内光照条件较弱，但袋内温度最高；双层袋光照强度几乎为0，但温度维持相对稳定。而在不同光照强度和温度处理下，全日照与1/3光照相比，会诱导大量O2-产生，同时也会提高5'-核苷酸酶、SOD、POD活性，但最终维持较高MDA含量，致使细胞膜系统受到伤害，对果实表皮组织不利。结果说明，果实摘袋前后的环境变化与果实抗性相关，摘袋时间与方式对可降低摘袋后果实日烧的发生。

Effect of Fruit Bags, Illumination Intensity and Temperature on Membrane Integrity in Apple Peel Tissues

The present test was undertaken with Fuji apple fruit to find out the micro environmental changes of six kinds of fruit bags and the effect of light intensity and temperature on fruit peel tissue. It was proved that under natural conditions,it was the weak light intensity and the highest temperature in black bag;it was dark and the stable temperature in double bag. The treatment of full light could raise the 5＇-Nucleotidase,SOD and POD activities,but it could also raise the O2-· and MDA contents. It was bad effect on the fruit peel tissue. It was suggested that the fruit resistant was related to the change of environment that the bags were removed or not,and the time and way of removed bags could reduce the fruit sunburn.