植物生长调节剂对优质粳稻产量、品质与光合特性的影响

doi:10.3969/j.issn.1004-1524.20230798

浙江农业学报 ›› 2024, Vol. 36 ›› Issue (5): 1003-1014.DOI: 10.3969/j.issn.1004-1524.20230798

植物生长调节剂对优质粳稻产量、品质与光合特性的影响

赵黎明(), 王亚新, 蒋文鑫, 段绍彪, 沈雪峰, 郑殿峰, 冯乃杰^*()

广东海洋大学滨海农业学院,广东湛江 524088

收稿日期:2023-06-27 出版日期:2024-05-25 发布日期:2024-05-29
作者简介:赵黎明(1980—),男,黑龙江海伦人,博士,副研究员,主要从事作物高效生产与智控抗逆研究。E-mail:nxyzlm@gdou.edu.cn
通讯作者: * 冯乃杰,E-mail:DAQINGfnj@163.com
基金资助:
广东海洋大学科研启动经费(060302052010);湛江市创新创业团队引育领航计划(2020LHJH01);“十三五”国家重点研发计划(2016YFD0300504);国家“十二五”科技支撑计划(2012BAD20B0402)

Effects of plant growth regulators on yield, quality and photosynthetic characteristics of high-quality japonica rice

ZHAO Liming(), WANG Yaxin, JIANG Wenxin, DUAN Shaobiao, SHEN Xuefeng, ZHENG Dianfeng, FENG Naijie^*()

College of Coastal Agronomy, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China

Received:2023-06-27 Online:2024-05-25 Published:2024-05-29

摘要/Abstract

摘要：

为探究植物生长调节剂对优质粳稻光合特性、产量与品质的影响,以绥粳18、垦稻12和三江6为试验材料,研究剑叶展开期喷施脱落酸(ABA)、6-苄氨基腺嘌呤(6-BA)、己酸二乙氨基乙醇酯(DA-6)、亚精胺(Spd)、3-吲哚丁酸(IBA)、3,5-二硝基水杨酸(SA)、油菜素内酯(BL)、玉米素(ZT)、三十烷醇(TRIA)、茉莉酸甲酯(MeJA)和N6-呋喃甲基腺嘌呤(KT)对水稻产量、品质和光合特性的影响。结果表明:与对照(CK)相比,喷施BL提高了抽穗后水稻干物质积累和茎鞘物质转运能力,增加了每穗粒重、千粒重、结实率和粒叶比,两年平均增产7.61%;喷施6-BA有利于延长抽穗期至蜡熟期绿叶面积持续期,改善抽穗后光合特性,增加每穗粒数、每穗粒重、千粒重和粒叶比,两年平均增产6.40%;而喷施DA-6、ZT、ABA、Spd、IBA、SA和KT的增产效果存在品种和年份间稳定性差异。在品质上,喷施DA-6和ZT提高了精米率和整精米率,改善了稻米外观品质。综上,剑叶展开期喷施BL和6-BA有利于供试品种增产,而喷施DA-6和ZT则更有利于稳产或增产前提下提质。

关键词: 植物生长调节剂, 优质粳稻, 产量, 品质, 光合特性

Abstract:

In order to explore the effects of plant growth regulator on photosynthetic characteristics, yield and quality of high-quality japonica rice, the experimental materials were selected as the Suijing 18, Kendao 12, and Sanjiang 6, and eleven plant growth regulators including abscisic acid (ABA), 6-benzylaminoadenine (6-BA), diethyl aminoethyl caproate (DA-6), spermidine (Spd), 3-indolebutyric acid (IBA), 3,5-dinitrosalicylic acid (SA), brassinolide (BL), zeatin (ZT), triacontanol (TRIA), methyl jasmonate (MeJA), and N6-furan methyl adenine (KT) were sprayed at the flag leaf expansion stage, in order to analyze the effects of plant growth regulator on yield, quality and photosynthetic characteristics of rice. The results showed spraying BL increased dry matter accumulation and stem-sheath matter transport after heading, increased grain weight per panicle, 1 000-grain weight, seed setting rate, and grain-grass ratio, with an average increase of 7.61% in two years, compared with control (CK). Spraying 6-BA could improve the photosynthetic characteristics after heading, prolong the duration of green leaf area from heading stage to waxy stage, increase the number of grains per panicle, grain weight per panicle, 1 000-grain weight, and grain-grass ratio, with an average increase of 6.40% in two years. However, the yield increase effect of DA-6, ZT, ABA, Spd, IBA, SA, and KT were different between years and varieties. In terms of quality, spraying DA-6 and ZT increased milled rice rate and head rice rate, and improved rice appearance quality. According to the comprehensive analysis, the application of BL and 6-BA in the development period of sword leaf is suitable for increasing the yield of test varieties, while the application of DA-6 and ZT is more suitable for improving the quality under the premise of stable yield or increasing the yield.

Key words: plant growth regulator, high-quality japonica rice, yield, quality, photosynthesis characteristic

中图分类号:

S511

赵黎明, 王亚新, 蒋文鑫, 段绍彪, 沈雪峰, 郑殿峰, 冯乃杰. 植物生长调节剂对优质粳稻产量、品质与光合特性的影响[J]. 浙江农业学报, 2024, 36(5): 1003-1014.

ZHAO Liming, WANG Yaxin, JIANG Wenxin, DUAN Shaobiao, SHEN Xuefeng, ZHENG Dianfeng, FENG Naijie. Effects of plant growth regulators on yield, quality and photosynthetic characteristics of high-quality japonica rice[J]. Acta Agriculturae Zhejiangensis, 2024, 36(5): 1003-1014.

图/表 8

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植物生长调节剂Plant growth regulator		化学式 Chemical formula	分子量 Molecular weight	品牌 Brand	CAS号 Number of CAS	最佳施用浓度 Optimum concentration	溶解试剂 Reagent dissolution
简写 Abbreviation	名称 Name	化学式 Chemical formula	分子量 Molecular weight	品牌 Brand	CAS号 Number of CAS	最佳施用浓度 Optimum concentration	溶解试剂 Reagent dissolution
ABA	脱落酸Abscisic acid	C₁₅H₂₀O₄	264.32	Sigma-Aldrich^®	21293-29-8	20 mg·L^-1★	C₂H₅OH
6-BA	6-苄氨基腺嘌呤	C₁₂H₁₁N₅	225.26	Phygene^®	162714-86-5	30 mg·L^-1▲	H₂O
	6-Benzylaminopurine
DA-6	己酸二乙氨基乙醇酯	C₁₂H₂₅NO₂	215.33	YH^®	10369-83-2	50 mg·L^-1▲	H₂O
	Diethyl aminoethyl hexanoate
Spd	亚精胺Spermidine	C₇H₁₉N₃	145.20	Aladdin^®	124-20-9	1 mmol·L^-1▲	H₂O
IBA	3-吲哚丁酸	C₁₂H₁₃NO₂	203.24	OKR^®	133-32-4	30 mg·L^-1★	C₂H₅OH
	Indole-3-butyric acid
SA	3,5二硝基水杨酸	C₇H₄N₂O₇	228.12	Aladdin^®	609-99-4	0.5 mmol·L^-1★	C₂H₅OH
	3,5-Dinitrosalicylic acid
BL	油菜素内酯Brassinolide	C₂₈H₄₈O₆	480.68	Aladdin^®	72962-43-7	0.1 mg·L^-1▲	H₂O
ZT	玉米素Zeatin	C₁₀H₁₃N₅O	219.24	Tyuhk^®	1637-39-4	0.05 mmol·L^-1▲	C₂H₅OH
TRIA	三十烷醇Triacontanol	C₃₀H₆₂O	438.82	J&K^®	593-50-0	1.5 mg·L^-1▲	CHCl₃
MeJA	茉莉酸甲酯Methyl jasmonate	C₁₃H₂₀O₃	224.30	OKR^®	1211-29-6	0.15 mmol·L^-1▲	C₂H₅OH
KT	N6-呋喃甲基腺嘌呤	C₁₀H₉N₅O	215.21	Aladdin^®	525-79-1	0.15 mmol·L^-1★	CH₃COOH
	N6-Furfuryladenine
CK	水Water	H₂O	18.02		7732-18-5	225 L·hm^-2

植物生长调节剂Plant growth regulator		化学式 Chemical formula	分子量 Molecular weight	品牌 Brand	CAS号 Number of CAS	最佳施用浓度 Optimum concentration	溶解试剂 Reagent dissolution
简写 Abbreviation	名称 Name	化学式 Chemical formula	分子量 Molecular weight	品牌 Brand	CAS号 Number of CAS	最佳施用浓度 Optimum concentration	溶解试剂 Reagent dissolution
ABA	脱落酸Abscisic acid	C₁₅H₂₀O₄	264.32	Sigma-Aldrich^®	21293-29-8	20 mg·L^-1★	C₂H₅OH
6-BA	6-苄氨基腺嘌呤	C₁₂H₁₁N₅	225.26	Phygene^®	162714-86-5	30 mg·L^-1▲	H₂O
	6-Benzylaminopurine
DA-6	己酸二乙氨基乙醇酯	C₁₂H₂₅NO₂	215.33	YH^®	10369-83-2	50 mg·L^-1▲	H₂O
	Diethyl aminoethyl hexanoate
Spd	亚精胺Spermidine	C₇H₁₉N₃	145.20	Aladdin^®	124-20-9	1 mmol·L^-1▲	H₂O
IBA	3-吲哚丁酸	C₁₂H₁₃NO₂	203.24	OKR^®	133-32-4	30 mg·L^-1★	C₂H₅OH
	Indole-3-butyric acid
SA	3,5二硝基水杨酸	C₇H₄N₂O₇	228.12	Aladdin^®	609-99-4	0.5 mmol·L^-1★	C₂H₅OH
	3,5-Dinitrosalicylic acid
BL	油菜素内酯Brassinolide	C₂₈H₄₈O₆	480.68	Aladdin^®	72962-43-7	0.1 mg·L^-1▲	H₂O
ZT	玉米素Zeatin	C₁₀H₁₃N₅O	219.24	Tyuhk^®	1637-39-4	0.05 mmol·L^-1▲	C₂H₅OH
TRIA	三十烷醇Triacontanol	C₃₀H₆₂O	438.82	J&K^®	593-50-0	1.5 mg·L^-1▲	CHCl₃
MeJA	茉莉酸甲酯Methyl jasmonate	C₁₃H₂₀O₃	224.30	OKR^®	1211-29-6	0.15 mmol·L^-1▲	C₂H₅OH
KT	N6-呋喃甲基腺嘌呤	C₁₀H₉N₅O	215.21	Aladdin^®	525-79-1	0.15 mmol·L^-1★	CH₃COOH
	N6-Furfuryladenine
CK	水Water	H₂O	18.02		7732-18-5	225 L·hm^-2

处理 Treatment	每穗粒数 Grain number per panicle		每穗粒重 Grain weight per panicle/g		千粒重 1 000-grain weight/g		结实率 Seed-setting rate/%		产量 Yield/(kg·hm^-2)
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	102.07 a	97.46 a	1.98 bc	2.07 d	25.42 ef	25.91 e	76.59 d	82.41 c	8 387.06 cd	8 884.92 d
6-BA	97.98 b	96.19 a	2.08 a	2.19 b	25.94 cd	26.43 b	81.79 c	89.38 a	8 789.03 b	9 722.27 a
DA-6	95.59 c	96.52 a	2.00 b	2.19 b	25.82 cde	26.33 bc	82.47 c	87.47 a	8 538.12 c	9 414.09 b
Spd	93.00 de	93.49 b	1.98 bc	2.06 d	25.81 cde	26.30 bc	82.71 c	84.23 bc	8 400.96 cd	8 840.68 d
IBA	92.64 de	96.37 a	1.96 bc	2.11 cd	25.53 def	26.02 de	83.11 c	84.53 bc	8 347.94 cd	9 052.15 cd
SA	91.81 e	95.68 ab	1.96 bc	2.10 cd	25.18 f	25.67 f	85.89 b	86.50 ab	8 347.17 cd	9 025.43 cd
BL	92.77 de	96.06 a	2.12 a	2.25 a	26.64 a	26.30 bc	86.67 b	89.32 a	9 029.52 a	9 675.90 a
ZT	83.54 g	91.57 c	2.00 b	2.15 bc	26.28 ab	26.77 a	92.01 a	89.14 a	8 520.66 c	9 262.55 bc
TRIA	84.51 fg	88.30 d	1.95 c	2.09 d	26.35 ab	26.67 a	88.04 b	89.21 a	8 278.93 d	8 947.96 d
MeJA	85.98 f	91.17 c	1.94 c	2.10 cd	25.95 bcd	26.17 cd	88.29 b	88.57 a	8 282.01 d	9 016.15 cd
KT	94.52 cd	95.97 a	1.97 bc	2.21 ab	25.88 bcd	26.37 bc	80.76 c	87.63 a	8 323.11 cd	9 498.82 ab
CK	94.81 cd	96.20 a	1.99 bc	2.11 cd	25.78 cde	26.20 cd	82.39 c	84.40 bc	8 311.27 cd	9 081.09 cd
SJ18	96.16 b	97.95 b	2.12 a	2.25 b	26.04 b	26.46 b	85.11 a	86.94 b	8 504.36 b	8 999.30 a
KD12	75.27 c	78.19 c	1.72 b	1.90 c	27.06 a	27.29 a	84.75 a	89.15 a	8 752.17 a	9 239.89 a
SJ6	105.88 a	107.61 a	2.15 a	2.28 a	24.54 c	25.03 c	82.81b	84.61c	8 177.41 c	8 415.56 b
显著性分析Significance analysis
Y	223.87^**	25.03^*	74.53^**	420.25^**	307.66^**
P	6.35^*	4.13^*	8.79^**	13.51^**	4.73^*	20.11^**	4.28^**	6.60^**	11.39^**	13.66^**
V	906.78^**	691.07^**	76.80^**	543.72^**	5.21^*	381.46^**	140.26^**	33.11^**	74.82^**	72.72^**
P×V	10.97^**	3.53^**	7.33^**	3.43^*	8.40^*	4.53^*	12.59^**	5.34^*	11.55^**	3.16^*

处理 Treatment	每穗粒数 Grain number per panicle		每穗粒重 Grain weight per panicle/g		千粒重 1 000-grain weight/g		结实率 Seed-setting rate/%		产量 Yield/(kg·hm^-2)
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	102.07 a	97.46 a	1.98 bc	2.07 d	25.42 ef	25.91 e	76.59 d	82.41 c	8 387.06 cd	8 884.92 d
6-BA	97.98 b	96.19 a	2.08 a	2.19 b	25.94 cd	26.43 b	81.79 c	89.38 a	8 789.03 b	9 722.27 a
DA-6	95.59 c	96.52 a	2.00 b	2.19 b	25.82 cde	26.33 bc	82.47 c	87.47 a	8 538.12 c	9 414.09 b
Spd	93.00 de	93.49 b	1.98 bc	2.06 d	25.81 cde	26.30 bc	82.71 c	84.23 bc	8 400.96 cd	8 840.68 d
IBA	92.64 de	96.37 a	1.96 bc	2.11 cd	25.53 def	26.02 de	83.11 c	84.53 bc	8 347.94 cd	9 052.15 cd
SA	91.81 e	95.68 ab	1.96 bc	2.10 cd	25.18 f	25.67 f	85.89 b	86.50 ab	8 347.17 cd	9 025.43 cd
BL	92.77 de	96.06 a	2.12 a	2.25 a	26.64 a	26.30 bc	86.67 b	89.32 a	9 029.52 a	9 675.90 a
ZT	83.54 g	91.57 c	2.00 b	2.15 bc	26.28 ab	26.77 a	92.01 a	89.14 a	8 520.66 c	9 262.55 bc
TRIA	84.51 fg	88.30 d	1.95 c	2.09 d	26.35 ab	26.67 a	88.04 b	89.21 a	8 278.93 d	8 947.96 d
MeJA	85.98 f	91.17 c	1.94 c	2.10 cd	25.95 bcd	26.17 cd	88.29 b	88.57 a	8 282.01 d	9 016.15 cd
KT	94.52 cd	95.97 a	1.97 bc	2.21 ab	25.88 bcd	26.37 bc	80.76 c	87.63 a	8 323.11 cd	9 498.82 ab
CK	94.81 cd	96.20 a	1.99 bc	2.11 cd	25.78 cde	26.20 cd	82.39 c	84.40 bc	8 311.27 cd	9 081.09 cd
SJ18	96.16 b	97.95 b	2.12 a	2.25 b	26.04 b	26.46 b	85.11 a	86.94 b	8 504.36 b	8 999.30 a
KD12	75.27 c	78.19 c	1.72 b	1.90 c	27.06 a	27.29 a	84.75 a	89.15 a	8 752.17 a	9 239.89 a
SJ6	105.88 a	107.61 a	2.15 a	2.28 a	24.54 c	25.03 c	82.81b	84.61c	8 177.41 c	8 415.56 b
显著性分析Significance analysis
Y	223.87^**	25.03^*	74.53^**	420.25^**	307.66^**
P	6.35^*	4.13^*	8.79^**	13.51^**	4.73^*	20.11^**	4.28^**	6.60^**	11.39^**	13.66^**
V	906.78^**	691.07^**	76.80^**	543.72^**	5.21^*	381.46^**	140.26^**	33.11^**	74.82^**	72.72^**
P×V	10.97^**	3.53^**	7.33^**	3.43^*	8.40^*	4.53^*	12.59^**	5.34^*	11.55^**	3.16^*

处理 Treatment	糙米率 Brown rice rate		精米率 Milled rice rate		整精米率 Head rice rate		垩白粒率 Chalky grain rate		垩百度 Chalkiness degree
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	81.74 a	81.53 d	70.84 f	70.98 f	66.04 c	66.16 bc	8.65 b	10.63 a	3.54 de	4.43 c
6-BA	81.97 a	81.31 de	71.25 de	71.55 d	67.29 ab	66.06 bc	7.27 c	8.82 b	2.95 ef	3.88 d
DA-6	82.00 a	82.22 a	71.91 ab	72.23 b	67.77 a	67.22 a	6.71 d	5.64 d	2.04 g	2.58 e
Spd	81.83 a	81.03 e	71.65 bc	71.36 e	66.78 b	65.63 cd	11.66 a	10.23 a	8.27 a	5.35 b
IBA	81.83 a	81.83 c	71.79 bc	72.00 c	66.04 c	65.85 bc	8.69 b	4.35 e	3.97 d	5.10 bc
SA	81.81 a	81.53 d	71.55 bc	71.90 c	64.40 e	64.83 de	9.28 b	6.77 cd	6.52 b	6.59 a
BL	81.20 a	81.79 c	71.40 cd	71.78 c	64.08 e	65.58 cd	9.49 b	9.76 b	5.68 c	5.65 b
ZT	81.47 a	82.13 ab	72.43 a	72.50 a	65.81 c	67.30 a	6.37 cd	3.24 f	2.16 g	2.19 e
TRIA	81.30 a	81.72 cd	72.03 ab	71.98 c	65.42 cd	65.90 bc	5.97 d	4.94 e	2.40 fg	3.78 d
MeJA	81.33 a	81.61 d	71.27 de	71.65 d	62.13 f	64.41 e	6.54 d	5.41 de	3.10 ef	3.79 d
KT	81.88 a	82.08 b	72.09 ab	72.31 b	65.09 d	66.65 ab	7.25 c	7.80 c	3.85 d	4.13 cd
CK	81.89 a	81.83 c	71.14 e	71.82 c	62.31 f	65.95 bc	6.77 d	5.91 d	2.94 ef	4.72 c
SJ18	82.14 a	81.84 a	72.26 a	72.31 a	66.12 a	66.18 b	2.93 c	5.15 b	1.18 b	5.05 a
KD12	82.03 a	82.01 a	71.49 b	71.79 b	64.43 c	67.05 a	15.94 a	9.52 a	9.34 a	4.53 a
SJ6	80.81 b	80.75 b	71.08 c	71.23 c	65.24 b	65.32 c	4.87 b	6.22 b	1.33 b	4.46 a
显著性分析Significance analysis
Y	0.05^ns	10.23^*	2.79^ns	3.04^ns	1.35^ns
P	2.41^ns	5.93^*	6.97^*	18.18*	60.64^**	10.18^**	25.71^**	30.14^**	59.71^**	13.70^**
V	104.21^**	414.52^**	47.31^**	214.83^**	54.25^**	379.06^**	1 823.22^**	28.49^**	1 415.24^**	2.83^ns
P×V	1.16^ns	2.35^ns	1.27^ns	4.96^*	41.32^**	7.21^*	25.17^**	10.27^**	49.04^**	1.97^ns

植物生长调节剂对优质粳稻产量、品质与光合特性的影响

Effects of plant growth regulators on yield, quality and photosynthetic characteristics of high-quality japonica rice

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处理 Treatment	SPAD值 SPAD value				净光合速率Net photosynthetic rate/(μmol·m^-2·s^-1 )
	抽穗期Heading stage		蜡熟期Waxy stage		抽穗期Heading stage		蜡熟期Waxy stage
	2019	2020	2019	2020	2019	2020	2020
ABA	44.27 de	43.63 d	34.18 ef	34.50 f	22.80 d	23.60 cd	15.18 de
6-BA	46.73 a	46.53 a	37.99 a	38.26 a	25.61 a	25.75 a	17.61 a
DA-6	45.58 b	45.77 b	37.17 b	37.26 b	24.90 ab	25.22 a	16.84 ab
Spd	44.09 e	43.44 de	33.57 f	33.99 f	22.30 d	22.78 d	14.68 e
IBA	43.97 e	43.60 d	35.34 d	35.10 e	22.83 d	23.56 cd	15.35 de
SA	42.94 f	42.68 ef	36.72 bc	35.89 d	22.24 d	22.64 d	15.88 cd
BL	44.71 cd	44.78 c	36.19 c	37.17 b	24.20 bc	24.68 ab	16.93 ab
ZT	44.66 cd	45.65 b	37.33 ab	38.58 a	24.16 bc	25.53 a	17.14 ab
TRIA	41.56 f	42.47 f	33.99 f	34.06 f	20.86 e	22.52 d	14.75 e
MeJA	42.91 f	42.69 ef	31.93 g	32.65 g	23.32 cd	23.05 cd	14.71 e
KT	44.92 c	45.59 b	34.90 de	36.51 c	24.33 bc	24.67 ab	16.63 bc
CK	44.23 de	43.64 d	33.51 f	34.51 f	23.18 cd	23.89 bc	15.20 de
SJ18	44.25 b	44.74 b	35.42 b	36.02 b	23.14 b	24.50 b	16.38 b
KD12	42.20 c	41.55 c	33.25 c	33.49 c	21.08 c	21.75 c	14.04 c
SJ6	46.20 a	46.33 a	37.04 a	37.62 a	24.19 a	25.72 a	17.30 a
显著性分析Significance analysis
Y	0.22^ns	1.42^ns	2.75^ns
P	66.56^**	46.81^**	32.25^**	94.82^**	12.76^**	12.10^**	15.95^**
V	619.23^**	195.12^**	369.54^**	407.73^**	157.50^**	263.83^**	133.60^**
P×V	9.69^*	1.96^ns	6.12^**	5.34^*	1.29^ns	7.22^**	3.34^*

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[14]	雷联. 膜下滴灌调亏对制种玉米植株生长、产量和水分利用的影响[J]. 浙江农业学报, 2023, 35(7): 1542-1549.
[15]	卜远鹏, 刘娜, 张古文, 冯志娟, 王斌, 龚亚明, 许林英. 菜用大豆种质资源的农艺性状多样性评价及核心种质与食味品质评价体系的构建[J]. 浙江农业学报, 2023, 35(6): 1307-1314.

处理 Treatment	抽穗期生物量 Biomass of heading stage/(g·m^-2)		成熟期生物量 Biomass of maturity stage/(g·m^-2)		输出量 Exportation/ (g·m^-2)		输出率 Export rate/%		转化率 Translocation rate/%
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	826.98 ab	835.62 b	1 451.33 b	1 477.52 de	178.50 e	188.56 de	28.95 de	30.61e	24.50 b	23.08 bcd
6-BA	843.40 ab	875.26 a	1 433.55 bcd	1 675.34 a	216.25 b	244.19 a	33.69 b	37.10 a	26.34 a	27.63 a
DA-6	832.42 ab	866.35 a	1 420.98 cdef	1 576.48 c	213.05 b	236.25 a	35.65 a	36.51 ab	23.14 bc	26.75 a
Spd	836.44 ab	825.55 b	1 405.22 ef	1 446.58 e	185.51 de	195.68 d	27.90 f	29.75 f	21.55 d	21.20 e
IBA	830.05 ab	829.63 b	1 350.07 g	1 409.27 f	104.91 h	175.36 e	18.58 i	25.64 i	11.86 h	17.90 f
SA	831.00 ab	839.67 b	1 401.26 f	1 485.69 d	145.29 g	188.96 d	22.15 h	26.83 h	17.21 g	21.66 de
BL	838.42 ab	859.76 ab	1 673.90 a	1 627.59 ab	228.30 a	248.01 a	33.37 b	36.34 b	26.63 a	27.53 a
ZT	849.20 a	880.25 a	1 449.25 bc	1 609.38 bc	216.08 b	239.66 a	32.68 c	35.48 c	23.97 b	26.54 a
TRIA	827.28 b	841.11 ab	1 413.67 def	1 466.63 e	162.68 f	185.63 de	25.04 g	28.09 g	19.10 f	22.52 cde
MeJA	833.82 ab	840.05 b	1 438.76 bcd	1 500.01 d	182.89 e	210.35 c	28.62 e	33.26 d	20.15 e	24.40 b
KT	830.51 ab	866.25 ab	1 404.04 ef	1 635.28 ab	188.33 d	228.76 b	29.30 d	35.45 c	21.47 d	26.65 a
CK	835.09 ab	849.76 b	1 398.07 f	1 499.86 d	208.72 c	215.18 bc	32.51 c	33.43 d	22.92 c	23.95 bc
SJ18	845.98 b	870.19 a	1 478.73 a	1 558.76 a	161.06 b	210.08b	24.96 b	31.60 b	18.66 b	25.13 b
KD12	864.66 a	842.53 b	1 416.82 b	1 475.86 b	256.78 a	247.75 a	34.09 a	34.24 a	26.31 a	26.63 a
SJ6	791.24 c	839.42 b	1 414.48 b	1 567.64 a	137.30 c	181.25c	23.48 c	28.18 c	16.35 c	19.28 c
显著性分析Significance analysis
Y	11.25^*	23.53^*	28.51^**	37.81^**	11.72^*
P	2.55^ns	4.39^*	70.95^**	6.85^*	660.05^**	32.55^**	657.22^**	330.97^**	167.79^**	30.89^**
V	355.92^**	101.25^**	59.44^**	1014.11^**	88.06^**	855.26^**	570.04^**	66.83^**	1182.75^**	1289.11^**
P×V	0.48^ns	1.98^ns	47.53^**	22.19^**	365.27^**	14.85^**	35.18^**	11.85^*	10.87^**	5.76^*

处理 Treatment	抽穗期生物量 Biomass of heading stage/(g·m^-2)		成熟期生物量 Biomass of maturity stage/(g·m^-2)		输出量 Exportation/ (g·m^-2)		输出率 Export rate/%		转化率 Translocation rate/%
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	826.98 ab	835.62 b	1 451.33 b	1 477.52 de	178.50 e	188.56 de	28.95 de	30.61e	24.50 b	23.08 bcd
6-BA	843.40 ab	875.26 a	1 433.55 bcd	1 675.34 a	216.25 b	244.19 a	33.69 b	37.10 a	26.34 a	27.63 a
DA-6	832.42 ab	866.35 a	1 420.98 cdef	1 576.48 c	213.05 b	236.25 a	35.65 a	36.51 ab	23.14 bc	26.75 a
Spd	836.44 ab	825.55 b	1 405.22 ef	1 446.58 e	185.51 de	195.68 d	27.90 f	29.75 f	21.55 d	21.20 e
IBA	830.05 ab	829.63 b	1 350.07 g	1 409.27 f	104.91 h	175.36 e	18.58 i	25.64 i	11.86 h	17.90 f
SA	831.00 ab	839.67 b	1 401.26 f	1 485.69 d	145.29 g	188.96 d	22.15 h	26.83 h	17.21 g	21.66 de
BL	838.42 ab	859.76 ab	1 673.90 a	1 627.59 ab	228.30 a	248.01 a	33.37 b	36.34 b	26.63 a	27.53 a
ZT	849.20 a	880.25 a	1 449.25 bc	1 609.38 bc	216.08 b	239.66 a	32.68 c	35.48 c	23.97 b	26.54 a
TRIA	827.28 b	841.11 ab	1 413.67 def	1 466.63 e	162.68 f	185.63 de	25.04 g	28.09 g	19.10 f	22.52 cde
MeJA	833.82 ab	840.05 b	1 438.76 bcd	1 500.01 d	182.89 e	210.35 c	28.62 e	33.26 d	20.15 e	24.40 b
KT	830.51 ab	866.25 ab	1 404.04 ef	1 635.28 ab	188.33 d	228.76 b	29.30 d	35.45 c	21.47 d	26.65 a
CK	835.09 ab	849.76 b	1 398.07 f	1 499.86 d	208.72 c	215.18 bc	32.51 c	33.43 d	22.92 c	23.95 bc
SJ18	845.98 b	870.19 a	1 478.73 a	1 558.76 a	161.06 b	210.08b	24.96 b	31.60 b	18.66 b	25.13 b
KD12	864.66 a	842.53 b	1 416.82 b	1 475.86 b	256.78 a	247.75 a	34.09 a	34.24 a	26.31 a	26.63 a
SJ6	791.24 c	839.42 b	1 414.48 b	1 567.64 a	137.30 c	181.25c	23.48 c	28.18 c	16.35 c	19.28 c
显著性分析Significance analysis
Y	11.25^*	23.53^*	28.51^**	37.81^**	11.72^*
P	2.55^ns	4.39^*	70.95^**	6.85^*	660.05^**	32.55^**	657.22^**	330.97^**	167.79^**	30.89^**
V	355.92^**	101.25^**	59.44^**	1014.11^**	88.06^**	855.26^**	570.04^**	66.83^**	1182.75^**	1289.11^**
P×V	0.48^ns	1.98^ns	47.53^**	22.19^**	365.27^**	14.85^**	35.18^**	11.85^*	10.87^**	5.76^*

处理 Treatment	抽穗期叶面积指数 LAI of heading stage		成熟期叶面积指数 LAI of maturity stage		粒叶比 Grain-leaf ratio/ (mg·cm^-2)		群体生长速率 Population growth rate/(g·m^-2·d^-1)		净同化率 Net assimilation rate/ (g·m^-2·d^-1)
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	4.85 ab	4.93 ab	2.57 a	2.11 c	17.35 d	18.05 d	12.92 e	13.55 d	3.62 f	4.35 b
6-BA	4.90 a	5.05 a	2.08 de	2.35 b	17.98 b	19.65 a	13.7 bc	15.47 a	4.27 b	5.10 a
DA-6	4.85 ab	4.99 a	2.60 a	2.49 ab	17.55 bc	18.63 bc	13.51 cd	15.01 b	4.16 bc	4.85 ab
Spd	4.80 ab	4.86 bc	2.36 bc	1.98 d	17.76 b	18.17 d	13.03 de	13.85 d	3.91 de	3.99 c
IBA	4.88 a	4.79 c	2.16 cde	2.41 ab	17.16 de	18.09 d	11.82 f	12.89 e	3.64 f	4.27 b
SA	4.86 a	4.83 bc	2.35 bc	2.58 a	17.72 bc	18.33 cd	13.19 de	13.45 d	3.82 e	4.05 c
BL	4.83 ab	4.96 a	2.45 ab	2.22 bc	19.76 a	19.28 ab	19.31 a	15.66 a	5.54 a	4.88 ab
ZT	4.91 a	5.03 a	2.02 de	2.19 c	17.59 c	19.34 ab	14.35 b	15.57 a	4.30 b	5.07 a
TRIA	4.79 ab	4.75 c	2.19 cd	2.46 ab	17.01 e	17.99 d	13.08 de	13.19 de	4.07 cd	4.01 c
MeJA	4.84 ab	4.88 b	1.97 e	2.08 d	17.66 c	18.37 cd	13.87 bc	13.66 d	4.00 cd	4.38 b
KT	4.70 b	4.95 ab	2.30 bc	2.33 b	17.08 e	19.55 a	13.27 de	14.58 bc	3.79 e	4.95 ab
CK	4.81 ab	4.86 b	2.07 de	2.27 bc	17.48 cd	18.62 bc	12.87 e	14.33 c	3.93 de	4.33 b
SJ18	4.92 a	5.01 a	2.46 b	2.41 b	17.41 b	19.68 a	14.59 a	15.24 a	4.14 b	4.65 a
KD12	4.76 b	4.80 b	1.62 c	1.79 c	18.89 a	18.55 b	12.48 c	13.34 c	4.27 a	4.75 a
SJ6	4.90 a	5.06 a	2.70 a	2.68 a	16.78 c	17.83 c	14.23 b	14.27 b	3.85 c	4.01 b
显著性分析Significance analysis
Y	11.46^*	0.24^ns	22.01^**	4.45^*	13.95^**
P	1.53^ns	4.89^*	10.01^**	6.37^*	26.95^**	17.58^**	107.09^**	5.83^*	93.83^**	12.98^**
V	32.48^**	75.36^**	285.56^**	199.65^**	212.14^**	185.15^**	157.29^**	221.48^**	67.54^**	6.01^*
P×V	0.57^ns	2.39^ns	5.16^*	4.98^*	19.98^**	9.66^**	62.82^**	17.85^**	56.02^**	4.25^*

处理 Treatment	抽穗期叶面积指数 LAI of heading stage		成熟期叶面积指数 LAI of maturity stage		粒叶比 Grain-leaf ratio/ (mg·cm^-2)		群体生长速率 Population growth rate/(g·m^-2·d^-1)		净同化率 Net assimilation rate/ (g·m^-2·d^-1)
处理 Treatment	2019	2020	2019	2020	2019	2020	2019	2020	2019	2020
ABA	4.85 ab	4.93 ab	2.57 a	2.11 c	17.35 d	18.05 d	12.92 e	13.55 d	3.62 f	4.35 b
6-BA	4.90 a	5.05 a	2.08 de	2.35 b	17.98 b	19.65 a	13.7 bc	15.47 a	4.27 b	5.10 a
DA-6	4.85 ab	4.99 a	2.60 a	2.49 ab	17.55 bc	18.63 bc	13.51 cd	15.01 b	4.16 bc	4.85 ab
Spd	4.80 ab	4.86 bc	2.36 bc	1.98 d	17.76 b	18.17 d	13.03 de	13.85 d	3.91 de	3.99 c
IBA	4.88 a	4.79 c	2.16 cde	2.41 ab	17.16 de	18.09 d	11.82 f	12.89 e	3.64 f	4.27 b
SA	4.86 a	4.83 bc	2.35 bc	2.58 a	17.72 bc	18.33 cd	13.19 de	13.45 d	3.82 e	4.05 c
BL	4.83 ab	4.96 a	2.45 ab	2.22 bc	19.76 a	19.28 ab	19.31 a	15.66 a	5.54 a	4.88 ab
ZT	4.91 a	5.03 a	2.02 de	2.19 c	17.59 c	19.34 ab	14.35 b	15.57 a	4.30 b	5.07 a
TRIA	4.79 ab	4.75 c	2.19 cd	2.46 ab	17.01 e	17.99 d	13.08 de	13.19 de	4.07 cd	4.01 c
MeJA	4.84 ab	4.88 b	1.97 e	2.08 d	17.66 c	18.37 cd	13.87 bc	13.66 d	4.00 cd	4.38 b
KT	4.70 b	4.95 ab	2.30 bc	2.33 b	17.08 e	19.55 a	13.27 de	14.58 bc	3.79 e	4.95 ab
CK	4.81 ab	4.86 b	2.07 de	2.27 bc	17.48 cd	18.62 bc	12.87 e	14.33 c	3.93 de	4.33 b
SJ18	4.92 a	5.01 a	2.46 b	2.41 b	17.41 b	19.68 a	14.59 a	15.24 a	4.14 b	4.65 a
KD12	4.76 b	4.80 b	1.62 c	1.79 c	18.89 a	18.55 b	12.48 c	13.34 c	4.27 a	4.75 a
SJ6	4.90 a	5.06 a	2.70 a	2.68 a	16.78 c	17.83 c	14.23 b	14.27 b	3.85 c	4.01 b
显著性分析Significance analysis
Y	11.46^*	0.24^ns	22.01^**	4.45^*	13.95^**
P	1.53^ns	4.89^*	10.01^**	6.37^*	26.95^**	17.58^**	107.09^**	5.83^*	93.83^**	12.98^**
V	32.48^**	75.36^**	285.56^**	199.65^**	212.14^**	185.15^**	157.29^**	221.48^**	67.54^**	6.01^*
P×V	0.57^ns	2.39^ns	5.16^*	4.98^*	19.98^**	9.66^**	62.82^**	17.85^**	56.02^**	4.25^*