摘要:
In order to understand the difference of resistance to storage in different breeds of lettuce in Beijing region,sensory quality,weight loss rate,chlorophyll content,respiration intensity,relative conductivity,PPO activity were measured in 10 main varieties (Xiang Sheng 2 Hao,Nai You,Zi Luo,Zi Ye,Da SuSheng,Luo Ma,Hong JuJu,Jie Qiu,Luo ShaHong,Luo ShaLv).The result showed that during the storage period,according to the index analysis,in Beijing area,the order of storage property from weak to strong was Xiang Sheng 2 Hao,Zi Ye,Nai You,Da SuSheng,Zi Luo,Luo ShaHong,Luo ShaLv,Jie Qiu,Hong JuJu and Luo Ma,while loose leaf lettuce was the worst with a bad quality,globular lettuce was in the middle,erect lettuce had a best storage property.The thicker and shape structure of leaf was more favorable to weaken the respiration and transpiration and enhance the storage property.%为比较北京地区10种常见生菜品种(橡生2号、奶油、紫罗、紫叶、大速生、罗马、红菊苣、结球、罗莎红、罗莎绿)的耐藏性,通过感官评价,分析不同品种生菜在贮藏期间的外观品质变化,并对其失重率、叶绿素含量、呼吸强度、相对电导率、PPO酶进行了测定.研究表明:综合各项生理生化指标,10种生菜耐藏性由弱到强依次为:橡生2号<紫叶<奶油<大速生<紫罗<罗莎红<罗莎绿<结球<红菊苣<罗马,散叶生菜<球生菜<直立生菜;叶片较厚且成抱状的结构更有利于减弱其呼吸和蒸腾作用,增强耐藏性.