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《不同比例红蓝光对生菜种子萌发及幼苗生长的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、浙江农业学报ActaAgricuhuraeZhejiangensis,2014,26(3):603·608http://www.zjnyxb.cn孙洪助,王虹,沈建华,等.不比例红蓝光对生菜种子萌发及幼苗生长的影响[J].浙江农业学报,2014,26(3):603-608.DOI:10.3969/j.issn.1004—1524.2014.03.12不同比例红蓝光对生菜种子萌发及幼苗生长的影响孙洪助,王虹,沈建华,郭世荣,朱为民一,许爽(南京农业大学园艺学院,农业部南方蔬菜遗传改良重点开放实验室,江苏南京210095;上海市农业科学院设施
2、园艺研究所,上海市设施园艺技术重点实验室,上海201403;3上海星辉蔬菜有限公司,上海201419)摘要:以罗马生菜种子为材料,研究了6种不同比例的红(R)蓝(B)光质(2R/1B,4R/1B,8R/1B,1R/2B,1R/4B,1R/8B)对生菜种子萌发及幼苗生长的影响。结果表明:与对照的白光相比,以红光为主的复合光处理(2R/1B,4R/1B,8R/IB)促进种子萌发效果明显,其发芽势、发芽指数和活力指数均显著高于对照。红蓝复合光对生菜幼苗的形态建成、根系活力、叶片色素含量和叶绿素荧光均有促进作用,以红光为主的复合光处理促进效果优于
3、以蓝光为主的复合光处理。在以红光为主的复合光处理中,2R/1B,4R/IB处理对生菜种子萌发及幼苗生长的促进效果优于8R/1B。总之,不同红蓝光比例显著影响了生菜种子萌发及幼苗生长,其中以2R/1B和4R/1B处理最优。关键词:生菜;光质;种子萌发;生长中图分类号:S636.2文献标志码:A文章编号:1004—1524(2014)03-0603-06EfectsofdiferentproportionsofredandbluelightonseedgerminationandseedlinggrowthoflettuceSUNHong—z
4、hu,,WANGHong,SHENJian—hua,GUOShi—rong,ZHUWei.min',XUShuang(CollegeofHorticulture,NanjingAgricultureUniversity,KeyLaboratoryofSouthernVegetableCropGeneticImprovement,MinistryofAgriculture,Nanjing210095,China;ProtectedHorticulturalResearchInstitute,ShanghaiAcademyofAgricult
5、uralSciences,ShanghaiKeyLaboratoryofProtectedHorticulturalTechnology,Shanghai201403,China;ShanghaiXinghaiVegetableCo.,Ltd.Shanghai201419,China)Abstract:Thestudyinvestigatedtheeffectsoflightqualitiesonseedgerminationandseedlinggrowthoflettuce.Plantsweregrownundersixdiffere
6、ntcombinationsofredandbluelight(2R/1B,4R/1B,8R/1B,1R/2B,1R/4B,,1R/8B).Theresultsshowedthatdifferentlightqualitieshaddifferentinfluencesonseedgerminationandseedlinggrowthoflettuce.Thec‘~mbinationofred(R)andblue(B)lightsbasedonredpromotedseedgerminationobviously,andthegermi
7、nationpotential,germinationindexandvigorindexunderthesetreatmentsweresignificantlyhigherthanthoseofcontro1.Comparedwithseedlingsgrownunderwhitelight,themixtureofblueandredlightpromotedthemorphogenesis,rootactivity,contentofleafpigmentandchlorophyllfluorescenceoflettucesee
8、dlings.Furthermore,thepromotingeffectsundertheRBlightsbasedonredwerebetterthanthoseoftreatmentsb
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