不同LED光照处理对拟南芥种子萌发的影响  

Effects of different LED light treatments on the germination of Arabidopsis

作　　者：吴冰[1] 徐永[1] 

机构地区：[1]福建农林大学光电子农业工程与技术研究中心,350002

出　　处：《福建农业科技》2016年第6期1-4,共4页Fujian Agricultural Science and Technology

基　　金：福建省科技重大专项(2014NZ0002-2)

摘　　要：通过调节不同的红光(λ=660 nm)、绿光(λ=525 nm)、蓝光(λ=445 nm)比值而设定一系列不同的光谱结构对拟南芥种子进行萌发试验,结果表明:红光可显著提高种子发芽率、促进胚根及胚轴的生长;蓝光则完全相反,显著降低种子发芽率、抑制胚根及胚轴的生长;绿光与红光混合辐射可减弱红光对种子发芽、胚根及胚轴生长的促进作用;当绿光与蓝光混合辐射时可显著减弱蓝光对种子发芽及胚根生长的抑制作用,对胚轴的生长则没有显著影响。建议在拟南芥种子萌发过程中使用红、绿两种光质混合辐射种子。Effects of different lights with different spectral structures, which include red light （ λ = 660 nm）, green light （λ =525 nm） and blue light （λ =445 nm）, on seed germination of Arabidopsis were studied. The results showed that the red light could significantly improve the seed germination rate of Arabidopsis, and promote the growth of radicle and hypoto- cyl; completely contrary results were observed when treated by blue light. The significant improvement of the seed germination rate of Arabidopsis, and its growth of radicle and hypotocyl by red light could be weakened by mixed green and red light illumination treatment. The treatment by mixed green and blue light could weaken the depression of seed germination and growth of radicle by blue light illumination, but not on growth of hypotocyl. Therefore, mixed red and green light treatment was recommended for seed germination of Arabidopsis.

关 键 词：拟南芥 种子萌发 LED光源 光谱结构 

分 类 号：Q945.34[生物学—植物学]