崔丹丹,张宇阳,董姚,肖铁琦,秦健,胡岳
CUI Dandan,ZHANG Yuyang,DONG Yao,XIAO Tieqi,QIN Jian,HU Yue

• 1:苏州纽克斯电源技术股份有限公司
• 2:上海交通大学电子信息与电气工程学院电气工程系

摘要(Abstract)：

为探究适宜辣椒育苗的高效光环境，本试验在全人工光育苗工厂内，设置了四种不同光质(S1、S2、S3、S4)和三种光强(HL、ML、LL)的组合进行樟树港辣椒育苗，并对比不同光环境下辣椒幼苗长势情况。试验设置的四种光质：S1(R∶G∶B=38%∶46%∶16%);S2(R∶G∶B∶Fr(远红光)=60%∶18%∶8%∶14%);S3(R∶G∶B=64%∶26%∶10%);S4(R∶B∶Fr=64%∶27%∶9%)。三种光强：HL(235μmol/m~2·s~(-1)),ML(160μmol/m~2·s~(-1)),LL(95μmol/m~2·s~(-1)),日光积累量DLI分别为13.5μmol/m~2·d~(-1)、9.3μmol/m~2·d~(-1)、5.5μmol/m~2·d~(-1)。十二种处理下进行辣椒育苗试验，比较不同处理对辣椒幼苗SPAD、株高、茎粗、壮苗指数等指标的影响。结果表明：(1)辣椒幼苗茎秆随光强降低变细，株高随光强降低增高。除S1光质外，辣椒幼苗壮苗指数与光强成正比，除S4光质外，中等强度光照(160μmol/m~2·s~(-1))辣椒叶片叶绿素含量最高。(2)红蓝光占比相近情况下，S2光质中添加远红光，辣椒幼苗株高显著高于其他光质，但茎秆细弱；S4光质蓝光比例高，植株最矮，叶色深，叶绿素相对含量高。HL处理下，S2光质辣椒幼苗干物质量显著高于其他，但在ML、LL光强下未表现此现象。
To explore an efficient light environment for pepper seedling cultivation, this experiment was conducted in a fully artificial light seedling factory, where different light spectra and intensities were applied for the cultivation of Zhang ShuGang pepper seedlings. The growth of pepper seedlings under various light environments was compared. The experiment included four light qualities: S1(R∶G∶B=38%∶46%∶16%); S2( R∶G∶B∶Fr(far red) = 60%∶18%∶8%∶14%); S3(R∶G∶B = 64%∶26%∶10%); and S4(R∶B∶Fr = 64% :27%∶9%). Three light intensities were used∶HL(235 μmol/m~2·s~(-1)), ML(160 μmol/m~2·s~(-1)), LL(95 μmol/m~2·s~(-1)), with the Daily Light Integral(DLI) of 13.5 μmol/m~2·d~(-1), 9.3 μmol/m~2·d~(-1), and 5.5 μmol/m~2·d~(-1), respectively. The pepper seedling experiment was carried out under 12 different treatments, and the effects of different treatments on seedling SPAD value, plant height, stem diameter and seedling vigor index were compared. The results showed that:(1) The stems of pepper seedlings became thinner with as light intensity decreased, while plant height increased as light intensity decreased. Except for the S1 light quality, the seedling vigor index of pepper seedlings was positively correlated with light intensity. Except for the S4 light quality, under moderate light intensity(160 μmol/m~2·s~(-1)), the chlorophyll content of the pepper leaves was the highest.(2) Under a similar red-to-blue light ratio, adding far-red light in the S2 light quality significantly increased the plant height of the pepper seedlings compared to other spectra, but the stems were weak. The S4 light quality, with a higher proportion of blue light, resulted in the shortest plants, with darker leaves and a higher relative chlorophyll content. Under HL treatment, the dry matter weight of pepper seedlings with the S2 light quality was significantly higher than that of the other treatments, but this phenomenon was not observed under ML and LL light intensities.

关键词(KeyWords)： 育苗;LED;辣椒;长势状况
seedling;LED;pepper;growth status

Abstract:

Keywords:

基金项目(Foundation): 上海市“科技创新行动计划”农业科技领域项目(23N21900200)

作者(Author): 崔丹丹,张宇阳,董姚,肖铁琦,秦健,胡岳
CUI Dandan,ZHANG Yuyang,DONG Yao,XIAO Tieqi,QIN Jian,HU Yue

参考文献(References)：

• [1] Clavijo-Herrera J,Santen V E,Gómez C.Growth,water-use efficiency,stomatal conductance,and nitrogen uptake of two lettuce cultivars grown under different percentages of blue and red light[J].Horticulturae,2018,4(3):16.
• [2] Dougher T A O,Bugbee B.Long-term blue light effects on the histology of lettuce and soybean leaves and stems[J].Journal of the American Society for Horticultural Science,2004,129,467-472.
• [3] Wang Y,Folta K M.Contributions of green light to plant growth and development[J].American Journal of Botany,2013,100(1):70-78.
• [4] 许亚楠，闫家榕，孙鑫，等.红光和远红光在调控植物生长发育及应答非生物胁迫中的作用[J].植物学报，2023,58(4):622-637.
• [5] Al-Rukabi,Maad N M,Leunov V I,Tarakanov I G,et al.The effect of led lighting on the growth of seedlings of hybrid tomato[J].IOP Conference Series:Earth and Environmental Science,2021,910(1):012127.
• [6] 杨新琴，何润云，徐媛媛，等.LED植物工厂数字化育苗方式对黄瓜生长的影响[J].浙江农业科学，2021,62(5):866-867.
• [7] 李凤华，介元芬，吴帼秀，等.红蓝绿LED不同光质对西瓜和甜瓜幼苗质量的影响[J].中国蔬菜，2022(8):49-56.
• [8] Liu X,Shi R,Gao M,et al.Effects of LED light quality on the growth of pepper (Capsicum spp.) seedlings and the development after transplanting[J].Agronomy,2022,12:2269.
• [9] 林坤明，刘文科，刘家源，等.LED红蓝光连续光照对辣椒苗生长和壮苗指数的影响[J].照明工程学报，2023,34(5):1-6.
• [10] 刘玉兵，陈海燕，王军伟，等.LED红蓝光质调控辣椒幼苗生长的光合机制研究[J].河南农业科学，2021,50(7):145-153.
• [11] Hwang H,An S,Lee B,et al.Improvement of growth and morphology of vegetable seedlings with supplemental Far-red enriched LED lights in a plant factory[J].Horticulturae,2020,6,109.
• [12] Wang S,Liu X,Liu X,et al.The red/blue light ratios from light-emitting diodes affect growth and flower quality of Hippeastrum hybridum ‘Red Lion’[J].Front in Plant Science,2022,13:1048770.
• [13] Paul K,Bruce B.On the contrasting morphological response to far-red at high and low photon fluxes[J].Frontiers in Plant Science,2023:141185622-1185622.