发光二极管(LED)光质对金秋砂糖橘幼苗生长发育和光合特性的影响

doi:10.3969/j.issn.1004-1524.2022.01.11

浙江农业学报 ›› 2022, Vol. 34 ›› Issue (1): 89-97.DOI: 10.3969/j.issn.1004-1524.2022.01.11

发光二极管(LED)光质对金秋砂糖橘幼苗生长发育和光合特性的影响

杨超¹(), 刘敏竹¹, 李强², 韩涛², 彭良志¹, 凌丽俐¹^,^*(), 付行政¹, 淳长品¹, 曹立¹, 何义仲¹

1.西南大学柑橘研究所/国家柑橘工程技术研究中心,重庆 400712
2.重庆文理学院化学与环境工程学院/环境材料与修复技术重庆市重点实验室,重庆 402160

收稿日期:2021-01-28 出版日期:2022-01-25 发布日期:2022-02-05
通讯作者: 凌丽俐
作者简介:* 凌丽俐,E-mail: linglili@cric.cn
杨超(1996—),男,重庆长寿人,硕士,主要从事柑橘栽培与生理的研究。E-mail: 1005309602@qq.com
基金资助:
重庆市技术创新与应用发展专项(cstc2019jscx-gksbX0102);财政部和农业农村部:国家现代农业产业技术体系;中央高校基本业务费专项资金(XDJK2019B041)

Effects of different light-emitting diode (LED) light quality on growth, development and photosynthetic characteristics of Jinqiu Shatangju seedlings

YANG Chao¹(), LIU Minzhu¹, LI Qiang², HAN Tao², PENG Liangzhi¹, LING Lili¹^,^*(), FU Xingzheng¹, CHUN Changpin¹, CAO Li¹, HE Yizhong¹

1. National Citrus Engineering Reseach Center/Citrus Research Insititute, Southweast University, Chongqing 400712, China
2. Chongqing Key Laboratory of Environmental Materials & Remediation Technologies/College of Chemical and Environmental Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China

Received:2021-01-28 Online:2022-01-25 Published:2022-02-05
Contact: LING Lili

摘要/Abstract

摘要：

为阐明不同发光二极管(LED)光质对金秋砂糖橘生长发育和光合特性的影响,以金秋砂糖橘容器苗为试验材料,设置LED红光(R)、蓝光(B)、红蓝复合光(RB11、RB21、RB41、RB81)共6种光质处理,并以LED白光(W)为对照组。处理2个月后研究新梢茎叶形态、生物量、光合色素含量和光合特征参数变化,并对相关指标进行主成分分析。结果表明:红光显著促进新梢茎长、叶片数、叶面积和生物量,抑制茎粗和叶厚,而蓝光的作用与红光相反;低比例红光显著促进新梢茎长、茎粗、叶片数、叶面积和生物量,但随着红光比例的增加呈显著降低趋势,其中,RB11处理的茎长、茎粗、叶片数和叶面积分别是对照组的1.97倍(P<0.05)、1.14倍(P>0.05)、2.05倍(P<0.05)、1.84倍(P<0.05),新梢鲜重和干重,以及叶鲜重、茎鲜重、叶干重和茎干重分别是对照组的1.68倍(P<0.05)、1.88倍(P<0.05)、1.46倍(P>0.05)、3.00倍(P<0.05)、1.68倍(P<0.05)、3.06倍(P<0.05);红、蓝单色光均导致光合色素含量和净光合速率(net photosynthetic rate,P_n)显著降低,而红蓝复合光促进叶绿素b(chlb)、类胡萝卜素(car)含量和P_n的增加,并且随着红光比例的增加,叶绿素含量、car含量、chla/chlb、P_n呈显著降低趋势;红蓝单色光和复合光导致气孔导度(stomatal conductance, G_s)(除RB41处理外)和蒸腾速率(transpiration rate,T_r)(除RB21和RB41处理外)呈降低趋势。主成分分析结果显示,红蓝1:1复合光(RB11)更利于金秋砂糖橘新梢生长发育、物质积累和光合作用。综上,该研究为建立金秋砂糖橘苗木快速繁育的LED补光技术提供了理论依据。

关键词: 金秋砂糖橘, 光质, 生长发育, 光合特性

Abstract:

In order to clarify the influence of different light-emitting diode (LED) light quality on growth, development and photosynthetic characteristics of Jinqiu Shatangju, Jinqiu shatangju container seedlings with trifoliate orange as the rootstock were used as the experimental materials, six light quality treatments [red light (R), blue light (B), red and blue composite light (RB11, RB21, RB41, RB81)] were set up in this study with white light (W) as the control. Phenotypic index, biomass, photosynthetic pigment content and photosynthetic characteristic parameters of the newly grown stems and leaves were measured after two months treatment, and the principal component analysis was performed on the relevant indicators. The results showed that red light significantly promoted elongation of new shoots, increased the number of leaves, leaf area and biomass, and inhibited thickening of stems and leaves, while effect of blue light was opposite to that of red light. Low proportion of red light also significantly promoted the elongation of new shoots, made stem thicker, increased number of leaves, leaf area and biomass, however, as the proportion of red light increased, growth trend was significantly reduced. Stem length, stem thickness, number of leaves and leaf area of compound light RB11 were 1.97 times (P<0.05), 1.14 times (P>0.05), 2.05 times (P<0.05), 1.84 times (P<0.05) of the control, respectively. Fresh weight and dry weight of new shoots were 1.68 times (P<0.05), 1.88 times (P<0.05) of the control. Fresh weight of leaves and stems, dry weight of leaves and stems were 1.46 times (P>0.05), 3.00 times (P<0.05), 1.68 times (P<0.05), 3.06 times (P<0.05) of the control. Red light and blue light all lead to a significant decrease in photosynthetic pigment content and net photosynthetic rate (P_n), while red-blue composite light promoted increase of chlorophyll b (chlb), carotenoid (car) content and P_n. In addition, increasing the proportion of red light, content of chlorophyll and car, as well as chla/chlb and P_n showed significant decreasing trend. All treatment light led to a decreasing trend in stomatal conductance (G_s) (except RB41 treatment) and transpiration rate (T_r) (except RB21 and RB41 treatments). Through principal component analysis, it could be found that the red-blue 1:1 compound light (RB11) was more conducive to growth and development, material accumulation and photosynthesis of new shoots of Jinqiu Shatangju. This study provided a theoretical basis for establishment of LED light supplement technology for rapid propagation of Jinqiu Shatangju seedlings.

Key words: Jinqiu Shatangju, light quality, growth and development, photosynthetic characteristics

中图分类号:

S628

杨超, 刘敏竹, 李强, 韩涛, 彭良志, 凌丽俐, 付行政, 淳长品, 曹立, 何义仲. 发光二极管(LED)光质对金秋砂糖橘幼苗生长发育和光合特性的影响[J]. 浙江农业学报, 2022, 34(1): 89-97.

YANG Chao, LIU Minzhu, LI Qiang, HAN Tao, PENG Liangzhi, LING Lili, FU Xingzheng, CHUN Changpin, CAO Li, HE Yizhong. Effects of different light-emitting diode (LED) light quality on growth, development and photosynthetic characteristics of Jinqiu Shatangju seedlings[J]. Acta Agriculturae Zhejiangensis, 2022, 34(1): 89-97.

图/表 8

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处理 Treatment	峰值 Peak value/nm	峰宽 Peak width/nm
CK	450,590	400-500,500-800
B	450	400-500
R	660	600-700
RB11	450,660	400-500,580-800
RB21	450,660	400-500,580-800
RB41	450,660	400-500,580-800
RB81	450,660	400-500,580-800

处理 Treatment	峰值 Peak value/nm	峰宽 Peak width/nm
CK	450,590	400-500,500-800
B	450	400-500
R	660	600-700
RB11	450,660	400-500,580-800
RB21	450,660	400-500,580-800
RB41	450,660	400-500,580-800
RB81	450,660	400-500,580-800

处理 Treatment	茎长 Stem length/cm	茎粗 Stem diameter/cm	叶片数 Leaf number	叶厚 Leaf thick/cm	叶面积 Leaf area/cm²
CK	11.93±3.30 b	2.81±0.33 ab	8.3±1.5 bc	0.23±0.01 a	11 698.8±2 620.0 c
B	10.57±1.31 b	2.87±0.47 ab	6.3±1.2 c	0.23±0.07 a	8 050.3±990.7 d
R	21.13±0.40 a	2.64±0.46 ab	14.3±0.6 a	0.17±0.02 b	23 782.6±1 807.5 a
RB11	23.53±2.66 a	3.20±0.21 a	17.0±2.0 a	0.23±0.02 a	21 571.1±4 189.5 ab
RB21	19.83±2.42 a	3.00±0.14 ab	10.3±2.5 b	0.24±0.01 a	16 457.8±4 684.4 bc
RB41	7.47±2.42 b	2.23±0.10 b	6.0±1.0 c	0.23±0.01 a	11 020.5±2 076.8 cd
RB81	6.97±1.67 b	2.21±0.12 b	5.3±1.2 c	0.21±0.03 ab	10 713.6±2 297.2 cd

处理 Treatment	茎长 Stem length/cm	茎粗 Stem diameter/cm	叶片数 Leaf number	叶厚 Leaf thick/cm	叶面积 Leaf area/cm²
CK	11.93±3.30 b	2.81±0.33 ab	8.3±1.5 bc	0.23±0.01 a	11 698.8±2 620.0 c
B	10.57±1.31 b	2.87±0.47 ab	6.3±1.2 c	0.23±0.07 a	8 050.3±990.7 d
R	21.13±0.40 a	2.64±0.46 ab	14.3±0.6 a	0.17±0.02 b	23 782.6±1 807.5 a
RB11	23.53±2.66 a	3.20±0.21 a	17.0±2.0 a	0.23±0.02 a	21 571.1±4 189.5 ab
RB21	19.83±2.42 a	3.00±0.14 ab	10.3±2.5 b	0.24±0.01 a	16 457.8±4 684.4 bc
RB41	7.47±2.42 b	2.23±0.10 b	6.0±1.0 c	0.23±0.01 a	11 020.5±2 076.8 cd
RB81	6.97±1.67 b	2.21±0.12 b	5.3±1.2 c	0.21±0.03 ab	10 713.6±2 297.2 cd

处理 Treatment	新梢鲜重 New shoot fresh mass/g	新梢干重 New shoot dry mass/g	干鲜重比 Ratio of dry mass to fresh mass	叶鲜重 Leaf fresh mass/g	茎鲜重 Stem fresh mass/g	叶干重 Leaf dry mass/g	茎干重 Stem dry mass/g
CK	3.99±1.42 c	1.12±0.43 c	0.28±0.01 bc	3.45±1.22 bc	0.55±0.19 c	0.96±0.37 b	0.16±0.06 c
B	3.70±0.43 c	1.27±0.15 c	0.34±0.01 a	3.19±0.30 c	0.51±0.14 c	1.11±0.09 ab	0.16±0.06 c
R	7.53±1.43 a	2.05±0.41 ab	0.27±0.01 bc	5.84±1.14 a	1.69±0.33 a	1.58±0.39 a	0.47±0.02 a
RB11	6.69±0.82 ab	2.10±0.40 a	0.31±0.03 ab	5.04±0.71 ab	1.65±0.12 a	1.61±0.40 a	0.49±0.01 a
RB21	5.49±1.40 bc	1.47±0.30 bc	0.27±0.03 c	4.43±1.29 abc	1.06±0.11 b	1.13±0.26 ab	0.34±0.04 b
RB41	4.22±0.97 c	1.36±0.33 c	0.32±0.03 a	3.75±0.75 bc	0.47±0.24 c	1.23±0.29 a	0.13±0.06 c
RB81	3.72±1.14 c	0.91±0.20 c	0.25±0.03 c	3.31±0.99 c	0.40±0.16 c	0.80±0.17 b	0.11±0.03 c

发光二极管(LED)光质对金秋砂糖橘幼苗生长发育和光合特性的影响

Effects of different light-emitting diode (LED) light quality on growth, development and photosynthetic characteristics of Jinqiu Shatangju seedlings

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处理Treatment	chla/(mg·g^-1)	chlb/(mg·g^-1)	chl(a+b)/(mg·g^-1)	chla/chlb	car/(mg·g^-1)
CK	2.45±0.28 a	0.70±0.07 ab	3.15±0.34 a	3.52±0.24 ab	0.42±0.09 abc
B	1.86±0.42 ab	0.50±0.13 c	2.36±0.54 b	3.73±0.42 a	0.35±0.09 c
R	1.65±0.51 b	0.47±0.12 c	2.12±0.63 c	3.49±0.28 ab	0.36±0.12 bc
RB11	2.41±0.22 a	0.80±0.09 a	3.21±0.30 a	3.01±0.17 c	0.52±0.05 a
RB21	2.26±0.13 ab	0.71±0.02ab	2.97±0.14 ab	3.20±0.16 bc	0.51±0.04 ab
RB41	2.17±0.20 ab	0.71±0.08 ab	2.88±0.28 ab	3.06±0.17 bc	0.50±0.05 ab
RB81	1.72±0.41 b	0.55±0.16 bc	2.27±0.57 b	3.17±0.25 bc	0.39±0.08 abc

处理Treatment groups	P_n/(μmol·m^-2·s^-1)	G_s/(mmol·m^-2·s^-1)	C_i/(μmol·mol^-1)	T_r/(μmol·m^-2·s^-1)
CK	2.20±0.48 c	0.13±0.05 a	354.1±20.6 ab	2.89±1.00 a
B	1.54±0.01 d	0.11±0.02 ab	363.3±7.1 a	2.69±0.42 ab
R	1.32±0.31 d	0.06±0.03 c	350.3±20.6 ab	0.79±0.31 d
RB11	3.82±1.06 a	0.09±0.05 bc	301.5±29.4 c	1.49±0.78 c
RB21	3.26±0.26 a	0.12±0.04 ab	349.9±12.6 b	3.26±0.67 ab
RB41	2.84±0.90 b	0.15±0.03 a	353.5±17.4 ab	3.02±0.40 a
RB81	2.86±0.54 b	0.11±0.03 ab	344.7±21.7 ab	2.18±0.38 b

处理Treatment	成分Component			综合得分Comprehensive score	排序Ranking
CK	-0.615 1	0.375 8	0.623 1	-0.138 7	4
B	-0.781 9	-0.731 2	1.609 2	-0.461 0	6
R	1.331 0	-1.633 3	-0.135 4	0.168 4	3
RB11	1.450 2	1.138 9	0.072 2	1.075 1	1
RB21	0.104 0	0.833 0	-0.005 0	0.300 4	2
RB41	-0.650 8	0.585 3	-0.508 8	-0.199 6	5
RB81	-0.837 5	-0.568 5	-1.655 3	-0.744 6	7

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