福建农业学报2026，Vol.41Issue(6)：682-689,8.DOI:10.19303/j.issn.1008-0384.2026.06.005
不同光质对辣椒幼苗生长发育、光合作用及碳代谢的影响
Effects of Artificial Lighting on Growth,Photosynthesis,and Carbon Metabolism of Chili Pepper Seedlings
摘要
Abstract
[Objective]Effects of artificial light exposure on growth,photosynthesis,and carbon metabolism of chili pepper seedlings were studied.[Method]'Shijichanglong 2'chili pepper plants were grown under the artificial lighting using red(R)and blue(B)lamps in combinations of 2∶1(T1),3∶2(T2)or 3∶1(T3),along with white light as control(CK).When the two leaves of pepper are in one center,add light from 8:00 to 18:00,effects of different light qualities on pepper seedlings,plant height,stem diameter,leaf length,leaf width,leaf area,number of leaves;chlorophyll content(chlorophyll a,chlorophyll b,chlorophyll a+b);net photosynthetic rate(Pn),intercellular carbon dioxide concentration(Ci),stomatal conductance(Gs)and transpiration rate(Tr);effects of sugar content(fructose,glucose,sucrose,starch content)and key enzyme activities of carbon metabolism(sucrose synthase(SS),sucrose phosphate synthase(SPS),neutral invertase(NI)and soluble acid invertase(AI))[Result]Comparing to CK,the lighting of various R+B lamp combinations grew taller seedlings in 20,30,and 40 d.The plants were 26.22%taller under T1,27.29%under T2,and 8.49%under T3.On the 30th day,those under T2 were 10.50%and those under T3,3.28%taller.The seedling leaves were significantly longer in 20-40 d under the combination lighting,and significantly wider,larger,and more numerous under T3.The chlorophyll a,chlorophyll b,and total chlorophyll of the seedlings increased by 14.52%,60.00%,and 52.17%,respectively,under T3,while the net photosynthetic rate,intercellular CO2 concentration,and stomatal conductance became significantly 44.65%,43.45%,and 60.00%,respectively,higher under T2.The contents of glucose,sucrose,and starch peaked with 50.14%,49.20%,and 34.17%,respectively,increases under T2.Meanwhile,the neutral invertase activity rose significantly 21.72%under T3,and the sucrose synthase activity 32.29%under T1.[Conclusion]Chili pepper seedlings grew robustly when exposed to the combined R and B lamps in 3:2 ratio(T2)that boosted photosynthetic rate and sugar content to significantly enhance the carbohydrate transformation and accumulation in the plants.关键词
辣椒/红光/蓝光/生长发育/光合作用/碳代谢Key words
chili pepper/red light/blue light/growth and development/photosynthesis/carbon metabolism分类
农业科技引用本文复制引用
王翠丽,张晓洋,李琦,汪亮芳,杨义荣..不同光质对辣椒幼苗生长发育、光合作用及碳代谢的影响[J].福建农业学报,2026,41(6):682-689,8.基金项目
甘肃省科技特派员(团)专项(25CXNA004) （团）
甘肃省自然科学基金项目(23JRRH0016) （23JRRH0016）
