不同光质对番茄幼苗生长和生理特性的影响  

Effects of Different Light Qualities on Growth and Physiological Characteristics of Tomato Seedlings

作　　者：蒲高斌[1] 刘世琦[1] 刘磊[1] 任丽华[2] 

机构地区：[1]山东农业大学园艺学院,泰安271018 [2]济宁市农业科学研究院,济宁272400

出　　处：《园艺学报》2005年第3期420-425,共6页Acta Horticulturae Sinica

摘　　要：就不同光质(蓝光、绿光、黄光、红光及白光)对番茄幼苗生长和生理特性的影响做了探究。结果表明,红光处理的幼苗干物质积累多,叶面积扩展快,叶绿素含量、光合速率、可溶性糖及总糖含量均最高,叶绿素a/b比值及总氮含量最低。蓝光处理幼苗的茎粗、叶面积、根系活力、光合速率均显著高于对照(白光)。壮苗指数以蓝光或红光处理的较好,说明在苗期照射红光或蓝光可促进番茄幼苗的生长,有利于培育壮苗。蓝光处理幼苗花期提早,产量显著提高。Effects of different light qualities (blue light, green light, yellow light, red light and white light) on the growth and physiological characteristics of tomato seedlings were studied. The results showed that under red light the dry matter accumulation, leaf area, chlorophyll content, photosynthetic rate, soluble sugar content and total sugar content were all maximal while the chlorophyll a/b ratio and total nitrogen content were lowest compared with the other treatments. The stem diameter, leaf area, root activity and photosynthetic rate of tomato seedlings with blue light were higher than that of white light. The healthy index of the seedling treated by blue light was maximal, and the red light treatment was the second. It is concluded that blue light or red light treatment could accelerate the growth of tomato seedlings, and benefit the breeding of healthy seedling. The blooming was early and the yield was improved obviously by blue light treatment.

关 键 词：番茄 幼苗 光质 生长发育 生理特性 

分 类 号：S641.2[农业科学—蔬菜学]