摘要： 为LED光源在园艺栽培中的应用积累经验,用自制LED光源,研究了不同光质及组合对番茄幼苗生长及生理特性的影响。结果表明:单色、双色和三色光质处理番茄幼苗,单色光质的蓝光、绿光处理更有利于提高番茄幼苗株高;除红光、黄光处理外均有利于番茄幼苗茎粗、鲜质量、干质量和壮苗指数的提高;处理红蓝光比1:1、红蓝紫光比5:3:2处理壮苗指数最优,可作为番茄培育壮苗的首选光源。所有光质处理均未提高番茄幼苗的CAT活性。黄光、红蓝光比3:2、红蓝紫光比5:3:2和5:4:1、红蓝绿光比5:3:2和5:4:1这6种处理有利于提高番茄幼苗POD活性,并以红蓝绿光比5:3:2最优。红蓝光比4:1、红蓝黄光比5:3:2和5:4:1、红蓝紫光比5:3:2这4种处理有利于提高番茄幼苗SOD活性。隶属函数法综合评价来看,红蓝紫光比5:3:2处理位列第一,可作为促进番茄幼苗生长的最优光质组合。

关键词: 光质, 番茄幼苗, 生长, 生理特性

Abstract: Using self-made LED light source the experiment study the effect of different light quality and light quality combination on morphogenesis and physiological and biochemical characteristics of tomato.The experiment accumulates data for application of LED light source in horticulture planting.The results showed that,the Blue and Green treats were all beneficial of improving the plant height of tomato seedling except the light quality treats were all beneficial of improving the stem diameter and fresh weight and dry weight and of tomato seedling except Red and Yellow treat and the healthy index of RB3 and RBP2 were the highest.They can be looked as the best light for growing tomato healthy seedling.All treats didn't improve the activity of CAT.The light quality treats RBG2 and Y and RB4 and RBP1 and RBG1 and RBP2 were all beneficial of improving the activity of POD.The light quality treats RBY1 and RB5 and RBY2 and RBP2 were all beneficial of improving the activity of SOD.Comprehensive evaluation,RBP2 can be looked as the best light for improving the activity of enzyme.

Key words: Light qualities, Tomato seedling, Growth, Physiological characteristics

中图分类号: 

• S641.01