Effects of different rotation patterns on physiological characteristics, yield and quality of foxtail millet during grain filling stage

doi:10.3969/j.issn.1004-1524.20221110

Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (7): 1499-1510.DOI: 10.3969/j.issn.1004-1524.20221110

• Crop Science • Previous Articles Next Articles

Effects of different rotation patterns on physiological characteristics, yield and quality of foxtail millet during grain filling stage

LI Xiaoxia¹(), LI Dan¹, LI Wanxing¹, JIN Kunpeng¹, LIU Yongzhong¹, HAN Wenqing¹, HUANG Xuefang², LIU Xin¹, TIAN Gang¹, CAO Jinjun¹^,^*()

1. Institute of Millet, Shanxi Agricultural University, Changzhi 046011, Shanxi, China
2. Shanxi Institute of Organic Dryland Farming, Shanxi Agricultural University, Taiyuan 030801, China

Received:2022-07-29 Online:2023-07-25 Published:2023-08-17
Contact: CAO Jinjun

Abstract

Abstract:

To clarify the effects of different crop rotation patterns on physiological characteristics, yield and quality of foxtail millet (Setaria italica) during grain-filling stage, 7 treatments including continuous cropping of foxtail millet, corn-soybean-foxtail millet, corn-sorghum-foxtail millet, corn-peanut-foxtail millet, corn-sweet potato-foxtail millet, corn-potato-foxtail millet, and corn-glutinous corn-foxtail millet were set up from 2018 to 2020. Physiological characteristics, yield and quality changes of foxtail millet under different treatments were studied. The comprehensive evaluation of foxtail millet yield and quality was performed by principal component analysis. Results showed that except for corn-sorghum-foxtail millet and corn-glutinous corn-foxtail millet modes, chlorophyll content during grain filling stage of foxtail millet in other crop rotation treatments increased significantly by 2.17% to 8.40% compared with continuous cropping. The net photosynthetic rate of various crop rotation treatments during grain filling stage increased significantly by 5.31% to 24.40% compared with continuous cropping. Nitrate reductase activity in functional leaves of foxtail millet increased or significantly increased in all crop rotation treatments. Leaf area index of various crop rotation treatments in the jointing stage, tasseling stage, flowering stage, grain filling stage and maturity stage were greater than or significantly greater than continuous cropping. The grain filling initiation of various crop rotation treatments was earlier than continuous cropping. Except for corn-glutinous corn-foxtail millet pattern, foxtail millet yield in various crop rotation treatments was significantly higher than continuous cropping or not significantly different from continuous cropping. The corn-soybean-foxtail millet crop rotation pattern had significantly higher amino acid content, crude protein content and viscosity than continuous cropping. The principal component analysis of foxtail millet yield and quality showed that corn-soybean-foxtail millet was the best crop rotation pattern, which could effectively improve the phenomenon of yield decline and quality reduction caused by continuous cropping obstacles.

Key words: Setaria italica, rotation pattern, grain filling stage, chlorophyll, net photosynthetic rate

CLC Number:

S515

LI Xiaoxia, LI Dan, LI Wanxing, JIN Kunpeng, LIU Yongzhong, HAN Wenqing, HUANG Xuefang, LIU Xin, TIAN Gang, CAO Jinjun. Effects of different rotation patterns on physiological characteristics, yield and quality of foxtail millet during grain filling stage[J]. Acta Agriculturae Zhejiangensis, 2023, 35(7): 1499-1510.

Figures/Tables 13

References 29

[1]	习现民. 谷子产业化发展的现状与未来[J]. 农产品加工, 2008(3): 10-11.
	XI X M. Present situation and future of millet industrialization development[J]. Farm Products Processing, 2008(3): 10-11. (in Chinese)
[2]	薛月圆, 李鹏, 林勤保. 小米的化学成分及物理性质的研究进展[J]. 中国粮油学报, 2008, 23(3): 199-203.
	XUE Y Y, LI P, LIN Q B. Research evolution on chemical component and physical character of foxtail millet[J]. Journal of the Chinese Cereals and Oils Association, 2008, 23(3): 199-203. (in Chinese with English abstract)
[3]	刘敬科, 刁现民. 我国谷子产业现状与加工发展方向[J]. 农业工程技术(农产品加工业), 2013(12): 15-17.
	LIU J K, DIAO X M. Present situation and processing development direction of millet industry in China[J]. Agriculture Engineering Technology(Agricultural Product Processing Industry), 2013(12): 15-17. (in Chinese)
[4]	李六林, 季兰. 杂种榛子不同方位叶片光合作用的日变化[J]. 林业科学, 2006, 42(12): 47-53.
	LI L L, JI L. Diurnal variation in photosynthesis of differently directional leaves in hybrid hazels (Corylus heterophylla×Corylus avellana)[J]. Scientia Silvae Sinicae, 2006, 42(12): 47-53. (in Chinese with English abstract)
[5]	周艳敏, 张春庆. 玉米生育后期光合特性的遗传分析[J]. 中国农业科学, 2008, 41(7): 1900-1907.
	ZHOU Y M, ZHANG C Q. Genetic analysis of photosynthetic characteristics of maize during late growth stage[J]. Scientia Agricultura Sinica, 2008, 41(7): 1900-1907. (in Chinese with English abstract)
[6]	李青山, 张玉琴, 沈晗, 等. 基于叶绿素相对含量的烤烟叶色仿真[J]. 山西农业大学学报(自然科学版), 2020, 40(3): 110-117.
	LI Q S, ZHANG Y Q, SHEN H, et al. Visual simulation of tobacco leaf color based on the relative content of chlorophyll[J]. Journal of Shanxi Agricultural University(Natural Science Edition), 2020, 40(3): 110-117. (in Chinese with English abstract)
[7]	MAY L, VAN SANFORD D A, MACKOWN C T, et al. Genetic variation for nitrogen use in soft red×hard red winter wheat populations[J]. Crop Science, 1991, 31(3): 626-630.
[8]	王嘉文, 吴刚, 徐云敏. 谷氨酰胺合成酶在植物氮同化及再利用中的研究进展[J]. 分子植物育种, 2019, 17(4): 1373-1377.
	WANG J W, WU G, XU Y M. Research progress of glutamine synthetase in plant nitrogen assimilation and recycling[J]. Molecular Plant Breeding, 2019, 17(4): 1373-1377. (in Chinese with English abstract)
[9]	MARTIN A, LEE J, KICHEY T, et al. Two cytosolic glutamine synthetase isoforms of maize are specifically involved in the control of grain production[J]. The Plant Cell, 2006, 18(11): 3252-3274.
[10]	SALEH A S M, ZHANG Q, CHEN J, et al. Millet grains: nutritional quality, processing, and potential health benefits[J]. Comprehensive Reviews in Food Science and Food Safety, 2013, 12(3): 281-295.
[11]	王玉文, 李会霞, 田岗, 等. 我国小米品质研究进展及其改良设想[J]. 中国农学通报, 2001, 17(5): 49-51.
	WANG Y W, LI H X, TIAN G, et al. Research progress and improvement of millet quality in China[J]. Chinese Agricultural Science Bulletin, 2001, 17(5): 49-51. (in Chinese)
[12]	冯小磊, 史高雷, 张晓磊, 等. 不同小米品种氨基酸与脂肪酸营养含量分析[J]. 食品工业, 2020, 41(7): 340-344.
	FENG X L, SHI G L, ZHANG X L, et al. Analysis of amino acid and fatty acid contents in different varieties of millet[J]. The Food Industry, 2020, 41(7): 340-344. (in Chinese with English abstract)
[13]	妙佳源, 李夏, 周达, 等. 连作对谷子土壤酶活性及养分的影响[J]. 干旱地区农业研究, 2016, 34(3): 123-126.
	MIAO J Y, LI X, ZHOU D, et al. Effects of foxtail millet continuous cropping on soil enzyme activities and nutrients[J]. Agricultural Research in the Arid Areas, 2016, 34(3): 123-126. (in Chinese with English abstract)
[14]	郝晓芬, 王根全, 郭二虎, 等. 连作、轮作对谷子根际细菌群落结构的影响[J]. 农业环境科学学报, 2022, 41(3): 585-596.
	HAO X F, WANG G Q, GUO E H, et al. Effects of continuous cropping and rotation on rhizosphere bacterial community structure of millet[J]. Journal of Agro-Environment Science, 2022, 41(3): 585-596. (in Chinese with English abstract)
[15]	牛倩云, 韩彦莎, 徐丽霞, 等. 作物轮作对谷田土壤理化性质及谷子根际土壤细菌群落的影响[J]. 农业环境科学学报, 2018, 37(12): 2802-2809.
	NIU Q Y, HAN Y S, XU L X, et al. Effects of crop rotation on soil physicochemical properties and bacterial community of foxtail millet rhizosphere soil[J]. Journal of Agro-Environment Science, 2018, 37(12): 2802-2809. (in Chinese with English abstract)
[16]	许艳丽, 李兆林, 李春杰. 小麦连作、迎茬和轮作对麦田杂草群落的影响[J]. 植物保护, 2004, 30(3): 26-29.
	XU Y L, LI Z L, LI C J. Effects of wheat rotation and monocropping system on weed populations in wheat fields[J]. Plant Protection, 2004, 30(3): 26-29. (in Chinese with English abstract)
[17]	刘会芳, 韩宏伟, 王强, 等. 不同蔬菜与番茄轮作对设施土壤微生物多样性、酶活性及土壤理化性质的影响[J]. 微生物学报, 2021, 61(1): 167-182.
	LIU H F, HAN H W, WANG Q, et al. Effect of vegetables-tomato rotation on soil microbial diversity, enzyme activity and physicochemical properties of vegetables in greenhouse[J]. Acta Microbiologica Sinica, 2021, 61(1): 167-182. (in Chinese with English abstract)
[18]	宋丽萍, 罗珠珠, 李玲玲, 等. 陇中黄土高原半干旱区苜蓿-作物轮作对土壤物理性质的影响[J]. 草业学报, 2015, 24(7): 12-20.
	SONG L P, LUO Z Z, LI L L, et al. Effect of lucerne-crop rotations on soil physical properties in the semi-arid Loess Plateau of Central Gansu[J]. Acta Prataculturae Sinica, 2015, 24(7): 12-20. (in Chinese with English abstract)
[19]	郑孟静, 李岩, 贾秀领. 主要农作物多样化轮作制度研究进展及展望[J]. 华北农学报, 2021, 36(S1): 215-221.
	ZHENG M J, LI Y, JIA X L. Research progress and perspective of diversified crop rotation systems in main crops[J]. Acta Agriculturae Boreali-Sinica, 2021, 36(S1): 215-221. (in Chinese with English abstract)
[20]	阳显斌, 李廷轩, 张锡洲, 等. 烟蒜轮作与套作对土壤农化性状及烤烟产量的影响[J]. 核农学报, 2015, 29(5): 980-985.
	YANG X B, LI T X, ZHANG X Z, et al. Effects of tobacco garlic crop rotation and tobacco garlic crop intercropping on soil agrochemical characters and tobacco yield[J]. Journal of Nuclear Agricultural Sciences, 2015, 29(5): 980-985. (in Chinese with English abstract)
[21]	殷尧翥, 郭长春, 孙永健, 等. 稻油轮作下油菜秸秆还田与水氮管理对杂交稻群体质量和产量的影响[J]. 中国水稻科学, 2019, 33(3): 257-268.
	YIN Y Z, GUO C C, SUN Y J, et al. Effects of rape straw retention and water and nitrogen management on population quality and yield of hybrid rice under rice-rape rotation[J]. Chinese Journal of Rice Science, 2019, 33(3): 257-268. (in Chinese with English abstract)
[22]	林郸, 李郁, 孙永健, 等. 不同轮作模式下秸秆还田与氮肥运筹对杂交籼稻产量及米质的影响[J]. 中国生态农业学报(中英文), 2020, 28(10): 1581-1590.
	LIN D, LI Y, SUN Y J, et al. Effects of straw returning and nitrogen application on yield and quality of hybrid indica rice under different rotation patterns[J]. Chinese Journal of Eco-Agriculture, 2020, 28(10): 1581-1590. (in Chinese with English abstract)
[23]	田中伟, 王方瑞, 戴廷波, 等. 小麦品种改良过程中物质积累转运特性与产量的关系[J]. 中国农业科学, 2012, 45(4): 801-808.
	TIAN Z W, WANG F R, DAI T B, et al. Characteristics of dry matter accumulation and translocation during the wheat genetic improvement and their relationship to grain yield[J]. Scientia Agricultura Sinica, 2012, 45(4): 801-808. (in Chinese with English abstract)
[24]	张建福, 朱永生, 蔡秋华, 等. 再生稻净光合速率与产量及其构成因素的相关性分析[J]. 中国水稻科学, 2011, 25(1): 103-106.
	ZHANG J F, ZHU Y S, CAI Q H, et al. Analysis on correlationship of net photosynthetic rate with yield and its components of ratooning rice[J]. Chinese Journal of Rice Science, 2011, 25(1): 103-106. (in Chinese with English abstract)
[25]	王空军, 胡昌浩, 董树亭, 等. 我国不同年代玉米品种开花后叶片保护酶活性及膜脂过氧化作用的演进[J]. 作物学报, 1999, 25(6): 700-706.
	WANG K J, HU C H, DONG S T, et al. Changes of the protective enzyme activities and lipid peroxidation after anthesis among maize varieties planted in different years[J]. Acta Agronomica Sinica, 1999, 25(6): 700-706. (in Chinese with English abstract)
[26]	吴兴慧, 张余, 李振宙, 等. 不同耕作方式对苦荞衰老和籽粒灌浆特性的影响[J]. 浙江农业学报, 2019, 31(12): 1963-1970.
	WU X H, ZHANG Y, LI Z Z, et al. Effect of different tillage methods on senescence and grain filling characteristics of Tartary buckwheat[J]. Acta Agriculturae Zhejiangensis, 2019, 31(12): 1963-1970. (in Chinese with English abstract)
[27]	王仪明, 雷艳芳, 魏臻武, 等. 不同轮作模式对青贮玉米产量、品质及土壤肥力的影响[J]. 核农学报, 2017, 31(9): 1803-1810.
	WANG Y M, LEI Y F, WEI Z W, et al. Effects of different rotation modes on yield, quality of silage corn, and soil fertility[J]. Journal of Nuclear Agricultural Sciences, 2017, 31(9): 1803-1810. (in Chinese with English abstract)
[28]	王丹丹, 徐文俊, 王卓, 等. 50份谷子营养与食味品质的聚类和相关性分析[J]. 分子植物育种, 2017, 15(3): 1043-1052.
	WANG D D, XU W J, WANG Z, et al. Cluster and correlation analysis on nutrition and eating qualities in 50 foxtail millets[J]. Molecular Plant Breeding, 2017, 15(3): 1043-1052. (in Chinese with English abstract)
[29]	张艾英, 郭二虎, 刁现民, 等. 不同气候和土壤对小米品质的影响[J]. 中国农业科学, 2019, 52(18): 3218-3231.
	ZHANG A Y, GUO E H, DIAO X M, et al. Effects of different types of climate and soil on foxtail millet quality[J]. Scientia Agricultura Sinica, 2019, 52(18): 3218-3231. (in Chinese with English abstract)

处理 Treatment	P_n	T_r	C_i	G_s
SSSi	16.56±0.28 e	1.9±0.04 b	275±4.36 c	160±8.31 f
SZGm	17.44±0.44 d	1.8±0.04 c	214±2.92 d	177±3.54 d
SZSb	17.76±0.36 d	2.1±0.07 a	279±5.24 bc	194±3.54 c
SZAh	19.10±0.47 bc	1.7±0.02 d	283±4.06 b	227±4.90 a
SZLb	18.70±0.16 c	1.8±0.04 c	349±3.08 a	202±3.24 b
SZSt	20.60±0.26 a	1.8±0.03 c	349±2.92 a	172±3.54 d
SZZm	19.47±0.36 b	1.4±0.02 e	189±5.34 e	166±2.24 e

处理 Treatment	P_n	T_r	C_i	G_s
SSSi	16.56±0.28 e	1.9±0.04 b	275±4.36 c	160±8.31 f
SZGm	17.44±0.44 d	1.8±0.04 c	214±2.92 d	177±3.54 d
SZSb	17.76±0.36 d	2.1±0.07 a	279±5.24 bc	194±3.54 c
SZAh	19.10±0.47 bc	1.7±0.02 d	283±4.06 b	227±4.90 a
SZLb	18.70±0.16 c	1.8±0.04 c	349±3.08 a	202±3.24 b
SZSt	20.60±0.26 a	1.8±0.03 c	349±2.92 a	172±3.54 d
SZZm	19.47±0.36 b	1.4±0.02 e	189±5.34 e	166±2.24 e

处理 Treatment	R₀	V_mean/(g· d^-1·1000- kernel^-1)	R_max/(g· d^-1·1000 -kernel^-1)	T_max/d	P/d
SSSi(CK)	0.102	0.047	0.356	27.835	58.824
SZGm	0.113	0.046	0.347	25.775	53.097
SZSb	0.185	0.059	0.465	17.601	32.432
SZAh	0.155	0.056	0.410	17.507	38.710
SZLb	0.108	0.045	0.318	22.092	55.556
SZSt	0.133	0.051	0.383	21.661	45.113
SZZm	0.112	0.045	0.323	22.100	53.571

处理 Treatment	R₀	V_mean/(g· d^-1·1000- kernel^-1)	R_max/(g· d^-1·1000 -kernel^-1)	T_max/d	P/d
SSSi(CK)	0.102	0.047	0.356	27.835	58.824
SZGm	0.113	0.046	0.347	25.775	53.097
SZSb	0.185	0.059	0.465	17.601	32.432
SZAh	0.155	0.056	0.410	17.507	38.710
SZLb	0.108	0.045	0.318	22.092	55.556
SZSt	0.133	0.051	0.383	21.661	45.113
SZZm	0.112	0.045	0.323	22.100	53.571

处理 Treatment	Logistic方程 Logistics equation	R²
SSSi(CK)	Y=3.495/(1+17.102e^-0.102^t)	0.977
SZGm	Y=3.069/(1+18.405e^-0.113^t)	0.995
SZSb	Y=2.511/(1+25.948e^-0.185^t)	0.985
SZAh	Y=2.648/(1+18.084e^-0.155^t)	0.999
SZLb	Y=2.949/(1+10.869e^-0.108^t)	0.959
SZSt	Y=2.879/(1+17.831e^-0.133^t)	0.982
SZZm	Y=2.880/(1+11.884e^-0.112^t)	0.986

Effects of different rotation patterns on physiological characteristics, yield and quality of foxtail millet during grain filling stage

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 29

Related Articles 15

Recommended Articles

Metrics

Comments

处理 Treatment	穗粗 Panicle diameter/cm	穗长 Panicler length/cm	千粒重 1 000-grain weight/g	穗重 Panicle weight/g	产量 Yield/(kg·hm^-2)
SSSi(CK)	4.45±0.36 a	22.23±1.78 a	2.88±0.14 a	32.84±1.13 b	5 195.8±28.35 c
SZGm	4.65±0.17 a	23.23±0.89 a	3.16±0.21 a	35.03±0.55 a	5 355.4±46.89 b
SZSb	4.52±0.11 a	22.60±0.53 a	2.97±0.06 a	35.47±0.51 a	5 178.5±69.69 c
SZAh	4.56±0.18 a	22.80±0.92 a	2.89±0.19 a	31.57±0.50 c	5 399.9±76.31 b
SZLb	4.41±0.10 a	22.07±0.50 a	3.00±0.04 a	32.68±0.42 b	5 250.3±46.29 c
SZSt	4.50±0.12 a	23.18±0.61 a	2.89±0.17 a	32.12±0.20 bc	5 714.6±70.42 a
SZZm	4.17±0.60 a	20.87±3.00 a	3.16±0.16 a	34.78±0.45 a	5 059.8±48.11 d

年份 Year	氨基酸总量 Total amino acids /%	粗蛋白质含量 Crude protein content/(g·kg^-1)	粗脂肪含量 Crude fat content/(g·kg^-1)	直链淀粉含量 Amylose content/%	胶稠度 Gel consistency/mm	碱消值 Alkali spreading value
2018	11.25±0.01 a	113.00±1.00 b	39.00±1.00 a	15.04±0.33 c	123±2.00 a	4.3±0.10 a
2019	11.27±0.02 a	120.00±1.00 a	29.00±1.00 c	16.16±0.14 b	123±1.73 a	4.0±0.10 b
2020	10.59±0.02 b	107.00±0.01 c	35.00±1.00 b	18.84±0.17 a	118±1.73 b	3.5±0.10 c

处理 Treatment	氨基酸总量 Total amino acids/%	粗蛋白质含量 Crude protein content/(g·kg^-1)	粗脂肪含量 Crude fat content/(g·kg^-1)	直链淀粉含量 Amylose content/%	胶稠度 Gel consistency/mm	碱消值 Alkali spreading value
SSSi	10.59±0.07 e	107.00±2.00 bc	35.00±2.00 d	18.84±0.10 a	118±1.73 b	3.5±0.01 c
SZGm	11.19±0.02 a	112.00±1.70 a	34.00±2.00 d	16.77±0.17 e	125±1.00 a	4.0±0.10 b
SZSb	10.45±0.04 f	105.00±1.00 c	46.00±1.70 a	18.44±0.07 b	125±2.00 a	4.3±0.10 a
SZAh	10.96±0.44 b	110.00±1.00 ab	39.00±1.00 c	17.71±0.10 c	120±1.00 b	4.0±0.10 b
SZLb	10.68±0.35 d	107.00±2.70 bc	35.00±1.70 d	17.00±0.23 d	115±2.00 c	3.4±0.17 c
SZSt	10.79±0.02 c	108.00±2.00 bc	43.00±2.00 b	17.87±0.08 c	123±1.73 a	4.2±0.17 ab
SZZm	10.38±0.04 f	105.00±1.70 c	31.00±1.00 e	17.92±0.05 c	123±1.00 a	4.0±0.10 b

处理 Treatment	谷氨酸 Glu	精氨酸 Arg	丙氨酸 Ala	亮氨酸 Leu	苯丙氨酸 Phe	缬氨酸 Val	天门冬氨酸 Asp	丝氨酸 Ser
SSSi	2.23±0.03 bc	1.54±0.02 c	0.94±0.02 b	0.91±0.01 b	0.66±0.01 abc	0.67±0.03 abc	0.68±0.01 b	0.53±0.02 c
SZGm	2.34±0.01 a	1.58±0.01 b	1.00±0.02 a	0.92±0.02 ab	0.69±0.02 a	0.70±0.01 a	0.74±0.02 a	0.57±0.01 ab
SZSb	2.17±0.02 c	1.48±0.02 e	0.91±0.01 b	0.89±0.03 b	0.64±0.02 c	0.64±0.02 c	0.66±0.03 b	0.51±0.01 c
SZAh	2.21±0.01 bc	1.66±0.01 a	1.01±0.01 a	0.84±0.01 c	0.68±0.01 ab	0.68±0.02 ab	0.73±0.02 a	0.59±0.02 a
SZLb	2.26±0.03 b	1.58±0.02 b	0.98±0.03 a	0.85±0.02 c	0.65±0.02 bc	0.65±0.02 bc	0.68±0.01 b	0.57±0.01 ab
SZSt	2.08±0.03 d	1.55±0.01 c	0.98±0.01 a	0.95±0.02 a	0.66±0.02 abc	0.66±0.02 bc	0.69±0.03 b	0.56±0.01 b
SZZm	2.2±0.10 bc	1.51±0.01 d	0.93±0.03 b	0.90±0.01 b	0.68±0.03 ab	0.68±0.01 ab	0.66±0.02 b	0.51±0.01 c
平均值	2.21±0.84	1.56±0.06	0.96±0.04	0.89±0.04	0.67±0.02	0.67±0.03	0.66±0.16	0.55±0.03
Mean
处理 Treatment	蛋氨酸 Met	苏氨酸 Thr	脯氨酸 Pro	组氨酸 His	甘氨酸 Gly	赖氨酸 Lys	酪氨酸 Tyr
SSSi	0.43±0.03 ab	0.39±0.03 a	0.23±0.03 b	0.27±0.02 b	0.23±0.02 a	0.21±0.02 bc	0.15±0.01 c
SZGm	0.44±0.01 a	0.42±0.02 a	0.20±0.00 b	0.32±0.02 a	0.25±0.01 a	0.25±0.02 a	0.19±0.02 b
SZSb	0.42±0.01 ab	0.38±0.02 a	0.33±0.03 a	0.27±0.02 b	0.23±0.02 a	0.20±0.02 bc	0.19±0.01 b
SZAh	0.43±0.03 ab	0.41±0.01 a	0.20±0.02 b	0.32±0.02 a	0.13±0.02 b	0.22±0.02 ab	0.27±0.02 a
SZLb	0.40±0.01 b	0.39±0.03 a	0.20±0.01 b	0.27±0.02 b	0.23±0.02 a	0.18±0.02 c	0.25±0.02 a
SZSt	0.42±0.03 ab	0.40±0.02 a	0.30±0.02 a	0.31±0.02 a	0.25±0.02 a	0.22±0.02 ab	0.20±0.02 b
SZZm	0.42±0.01 ab	0.39±0.03 a	0.20±0.02 b	0.25±0.02 b	0.23±0.02 a	0.19±0.02 bc	0.14±0.01 c
平均值	0.42±0.20	0.40±0.02	0.24±0.06	0.29±0.03	0.22±0.04	0.21±0.03	0.20±0.05
Mean

主成分 Principal component	特征值 Eigenvalue	贡献率 Contribution rate/%	累计贡献率 Cumulative contribution rate/%
1	10.797	46.943	46.943
2	4.544	19.755	66.698
3	4.178	18.166	84.864
4	1.608	6.989	91.853
5	1.043	4.537	96.390

处理 Treatment	F₁	F₂	F₃	F₄	F₅	总分 Total score	得分排序 Score rank
SSSi	-0.260	-0.050	-0.138	-0.006	-0.070	-0.525	6
SZGm	0.687	0.133	-0.204	0.049	0.044	0.708	1
SZSb	-0.585	0.164	0.141	-0.044	0.059	-0.264	5
SZAh	0.598	-0.101	0.137	-0.120	-0.013	0.501	2
SZLb	-0.058	-0.355	0.135	0.086	0.022	-0.171	4
SZSt	0.041	0.257	0.180	0.067	-0.048	0.498	3
SZZm	-0.423	-0.049	-0.251	-0.032	0.007	-0.747	7

[1]	ZHANG Xuenan, WANG Lele, NIU Mingxuan, ZHAN Ni, REN Haojie, XU Haocong, YANG Kun, WU Liquan, KE Jian, YOU Cuicui, HE Haibing. Estimation of rice leaf water content based on leaf reflectance spectrum and chlorophyll fluorescence [J]. Acta Agriculturae Zhejiangensis, 2023, 35(6): 1265-1277.
[2]	XIONG Xingwei, WANG Yiqin, TIAN Huaizhi, ZHANG Suqin, GENG Guangdong. Molecular mechanisms of chlorophyll-reduced cotyledon based on transcriptome sequencing in pumpkin [J]. Acta Agriculturae Zhejiangensis, 2023, 35(1): 90-102.
[3]	DING Dongxia, LI Nenghui, LI Jing, TANG Chaonan, WANG Cheng, NIU Tianhang, YANG Yan, YANG Haitao, XIE Jianming. Effects of exogenous melatonin on chlorophyll fluorescence and antioxidant system of pepper (Capsicum annuum L.) under low temperature and low light stress [J]. Acta Agriculturae Zhejiangensis, 2022, 34(9): 1935-1944.
[4]	ZHANG Zhiguo, CONG Lin, ZHANG Shijie, LI Rongguang, ZOU Weina, CHI Fa'an, ZHANG Bao, JIANG Yuping. Effects of root-zone temperature on growth, development and flowering of Hemerocallis fulva [J]. Acta Agriculturae Zhejiangensis, 2022, 34(5): 1005-1014.
[5]	WANG Huiru, LI Jianshe, YAN Sihua, GAO Yanming. Effect of prunning patterns on canopy light interception characteristics and chlorophyll fluorescence parameters in cherry tomato [J]. Acta Agriculturae Zhejiangensis, 2022, 34(3): 525-533.
[6]	CAI Yao, MIAO Yuxuan, WU Hao, WANG Dan. Hyperspectral characteristics and leaf area index (LAI) and SPAD value inversion of winter wheat under elevated CO₂ concentration [J]. Acta Agriculturae Zhejiangensis, 2022, 34(3): 582-589.
[7]	SUN Shouxia, CHEN Hong, LYU Wei, PIAO Hanqi, ZHOU Guanghui, WANG Hesong, ZHANG Shubin, HAO Jinlian. Effects of dustfall on photosynthetic characteristics and chlorophyll fluorescence characteristics of major fruit trees in Aksu Region, China [J]. Acta Agriculturae Zhejiangensis, 2022, 34(12): 2659-2668.
[8]	WANG Jia, MU Ruirui, YANG Qiaoqiao, LIU Wei, ZHANG Yuehe, KANG Jianhong. Effects of potassium application rate on chlorophyll fluorescence characteristics and yield of spring maize in Ningxia under integrated drip irrigation [J]. Acta Agriculturae Zhejiangensis, 2021, 33(8): 1347-1357.
[9]	ZHOU Beining, MAO Lian, HUA Zhuangzhuang, LU Jianguo. Effects on photochemical fluorescence properties under salt-alkaline stresses about Sinocalycanthus chinensis [J]. Acta Agriculturae Zhejiangensis, 2021, 33(8): 1416-1425.
[10]	XIAO Zhiyun, WANG Yining. Hyperspectral retrieval for chlorophyll contents of Syringa oblata leaves based on RF-VR [J]. Acta Agriculturae Zhejiangensis, 2021, 33(11): 2164-2173.
[11]	LIU Han, DAI Yuanxing, LYU Mingfang, YUAN Zhengjie, LI Jing, YAN Chengqi, ZHANG Hengmu. Effects of exogenous salicylic acid on growth and defense-related genes of rice seedlings [J]. Acta Agriculturae Zhejiangensis, 2021, 33(10): 1789-1796.
[12]	SONG Xindan, CHEN Binbin, MA Zengling, XU Lili, LIN Lidong, WU Mingjiang. Effects of salinity level on photosynthetic characteristics of Sargassum fusiforme seedlings [J]. , 2020, 32(9): 1634-1644.
[13]	LIU Yiping, SU Shaowen, ZHANG Lin, LIU Ying, HUANG Zhiyuan, HE Dan, KONG Dezheng. Effect of exogenous calcium on lotus adaptation to salt stress [J]. , 2020, 32(2): 243-252.
[14]	SHI Zhaoyong, LI Ke, WANG Fayuan, WANG Xugang, XU Xiaofeng. Effects of nano-silver and exotic arbuscular mycorrhizal fungi on chlorophyll fluorescence kinetics of sweet sorghum [J]. , 2020, 32(2): 283-290.
[15]	WANG Nianyi, YU Fenghua, XU Tongyu, DU Wen, GUO Zhonghui, ZHANG Guosheng. Hyperspectral retrieval modelling for chlorophyll contents of japonica-rice leaves based on machine learning [J]. , 2020, 32(2): 359-366.