伊犁河谷不同藜麦品种对盐胁迫的生理响应及耐盐评价

doi:10.13304/j.nykjdb.2020.1074

摘要/Abstract

摘要：

为了研究伊犁河谷不同藜麦品种对盐胁迫的生理响应、评价藜麦品种耐盐性，以NXSG56、NXSG85、HP9、GY3、QA13-9共5个藜麦品种为材料，分别用50、100、150、200、250、300、350、400 mmol·L^-1 NaCl溶液处理种子及幼苗，研究不同NaCl浓度对种子萌发、幼苗生长及生理指标的影响。结果表明，随NaCl浓度升高，藜麦种子发芽率、发芽势及幼苗地下部分干鲜重、叶片叶绿素含量、超氧化物歧化酶活性、胁迫初期叶片可溶性糖含量均呈先上升后下降趋势；幼苗叶片相对电导率、脯氨酸、丙二醛、Na⁺及后期叶片可溶性糖含量持续上升；地上部分干鲜重、纤维素及K⁺含量持续下降。说明各藜麦品种幼苗在受到NaCl胁迫时会通过提高渗透物质含量、增加根系吸收面积、增强超氧化物歧化酶活性等自我保护机制对抗盐胁迫。以上结果表明，NXSG85、NXSG56较其他品种耐盐，QA13-9对NaCl胁迫较敏感。

关键词: 藜麦, NaCl胁迫, 萌发, 幼苗, 生理指标, 耐盐评价

Abstract:

In order to study the physiological responses of quinoa plants to salt stress and to evaluate salt tolerance among different quinoa varieties in Yili Valley， seeds and seedlings of different quinoa varieties were treated with NaCl solution of 50， 100， 150， 200， 250， 300， 350， 400 mmol·L^-1 respectively. The results showed that as the concentration of NaCl increased， the germination rate， germination energy of seeds， dry and fresh weight of the underground part， chlorophyll content， SOD activity， soluble sugar content of the seedlings， all first increased and then decreased. The relative electrical conductivity， proline， MDA， Na⁺ and soluble sugar content in leaves of seedling were continuously increased， but the content of cellulose， K⁺， dry and fresh weight of the aboveground parts decreased. It indicated that quinoa seedlings could resist salt stress by increasing osmotic substance content and root absorption area， enhancing SOD activity and other self-protective mechanisms under NaCl stress. Quinoa varieties of NXSG85 and NXSG56 were more salt-tolerant than others but QA13-9 more sensitive to NaCl stress.

Key words: quinoa, NaCl stress, germinate, seedling, physiological index, salt tolerance evaluation

中图分类号:

S512.9

崔宏亮, 宋晓晓, 姚庆, 安万刚, 邢宝, 秦培友. 伊犁河谷不同藜麦品种对盐胁迫的生理响应及耐盐评价[J]. 中国农业科技导报, 2022, 24(5): 32-45.

Hongliang CUI, Xiaoxiao SONG, Qing YAO, Wangang AN, Bao XING, Peiyou QIN. Physiological Responses of Different Quinoa Varieties to Salt Stress and Evaluation of Salt Tolerance in Yili Valley[J]. Journal of Agricultural Science and Technology, 2022, 24(5): 32-45.

图/表 11

参考文献 25

1	杨少辉, 季静, 王罡,等. 盐胁迫对植物影响的研究进展[J]. 分子植物育种, 2006,4(3):139-142.
	YANG S H, JI J, WANG G,et al.. Effect of salt stress on the plant [J]. Mol. Plant Breeding, 2006,4(3):139-142.
2	周海涛, 刘浩, 么杨,等. 藜麦在张家口地区试种的表现与评价[J]. 植物遗传资源学报, 2014,15(1):222-227.
	ZHOU H T, LIU H, YAO Y, et al.. Evaluation of agronomic and quality characters of quinoa cultivated in Zhangjiakou [J]. J. Plant Genet. Resour., 2014,15(1):222-227.
3	PRADO F E, BOERO C, GALLARDO M, et al.. Effect of NaCl on germination, growth, and soluble sugar content in Chenopodium quinoa Willd. seeds [J]. Bot. Bull. Academia Sin., 2000,41(1):27-34.
4	刘凤岐, 刘杰琳, 朱瑞芬, 等. 4种燕麦对NaCl胁迫的生理响应及耐盐性评价[J]. 草业学报, 2015, 24(1):183-189.
	LIU F Q, LIU J L, ZHU R F, et al.. Physiological responses and tolerance of four varieties to salt stress [J]. Acta Pratac. Sin., 2015, 24(1):183-189.
5	张利霞, 常青山, 侯小改, 等. 不同钠盐胁迫对夏枯草种子萌发特性的影响[J]. 草业学报, 2015,24(3):177-185.
	ZHANG L X, CHANG Q S, HOU X G, et al.. Effects of sodium salt stress on seed germination of Prunella vulgares [J].Acta Pratac. Sin., 2015,24(3):177-185.
6	李合生. 植物生理生化实验原理与技术[M].北京:高等教育出版社, 2000:169-184.
7	侯建华, 于海峰, 安玉麟. 盐分胁迫对向日葵 K⁺ 、Na⁺吸收与分配的影响[J].华北农学报, 2013, 28(2): 139-143.
	HOU J H, YU H F, AN Y L. Research on changing of K⁺, Na⁺of sunflower under salinity stress [J]. Acta Agric. Boreali-Sin., 2013, 28(2): 139-143.
8	遆晋松, 童文杰, 周媛媛,等. 河套灌区向日葵耐盐指标评价[J]. 中国生态农业学报, 2014, 22(2): 177-184.
	TI J S, TONG W J, ZHOU Y Y, et al.. Evaluation of salinity tolerance index of sunflower in Hetao irrigation district [J]. Chin. J. Eco-Agric., 2014, 22(2): 177-184.
9	谢英赞,何平,王朝英,等. 外源 Ca²⁺,SA, NO对盐胁迫下决明幼苗生理特性的影响[J]. 西南大学学报(自然科学版), 2013,35(3):36-43.
	XIE Y Z, HE P, WANG C Y, et al.. Effects of Ca²⁺,SA, NO on physical signs of cassiae seedlings [J]. J. Southwest Univ. (Nat. Sci.), 2013,35(3):36-43.
10	马红媛, 梁正伟, 孔祥军, 等. 盐分、温度及其互作对羊草种子发芽率和幼苗生长的影响[J]. 生态学报, 2008, 28(10): 4710-4717.
	MA H Y, LIANG Z W, KONG X J, et al.. Effects of salinity, temperature and their interaction on the germination percentage and seedling growth of Leymus chinensis (Trin.) Tzvel. (Poaceae)[J]. Acta Ecol. Sin., 2008, 28(10):4710-4717.
11	MACKE A J, UNGER I A. The effect of salinity on germination and early growth of Puccinella nuttallinana [J]. Canadian J. Bot., 1971,49:515-520.
12	王飞, 刘世增, 刘有军. 沙地云杉和青海云杉种子萌发和幼苗生长对干旱盐碱胁迫的响应[J]. 西北植物学报, 2014,34(11):2309-2316.
	WANG F, LIU S Z, LIU Y J. Response of Picea mongolica and Picea crassiflia seed germination and seedling growth to drought and salt stress [J]. Acta Bot. Bor-Occid. Sin., 2014,34(11):2309-2316.
13	杨发荣, 刘文瑜, 黄杰, 等. 不同藜麦品种对盐胁迫的生理响应及耐盐评价[J]. 草业学报, 2017, 26(12):77-88.
	YANG F R, LIU W Y, HUANG J,et al.. Physiological responses of different quinoa varieties to salt stress and evaluation of salt tolerance [J]. Acta Pratac. Sin., 2017, 26(12):77-88.
14	宋旭丽, 侯喜林, 胡春梅, 等. NaCl胁迫对超大甜椒种子萌发和幼苗生长的影响[J]. 西北植物学报, 2011, 31(3):569-575.
	SONG X L, HOU X L, HU C M, et al.. Seed germination and seedling growth of sweet pepper under NaCl stress [J]. Acta Bot. Bor-Occid. Sin., 2011, 31(3):569-575.
15	马琳. NaCl胁迫对牧草种子萌发与幼苗生理生化的影响及耐盐性评价[D]. 山东泰安: 山东农业大学, 2010.
	MA L. Effects of NaCl stress on seed germination and seedling physiology and biochemistry and evaluation of salt tolerance [D]. Shandong Taian: Shandong Agricultural University, 2010.
16	翁锦周, 林江波, 林加耕, 等. 盐胁迫对桉树幼苗的生长及叶绿素含量的影响[J].热带作物学报, 2007, 28(4):15-20.
	WENG J Z, LIN J B, LIN J G, et al.. Effects of salt stress on the growth and chlorophyll content of eucalyptus robusta Smith seedlings [J]. Chin. J. Trop. Crops, 2007, 28(4):15-20.
17	刘晓青. NaCl胁迫对藜麦种子萌发和幼苗生理生化特性的影响[D].合肥:安徽农业大学,2016.
	LIU X Q. Effects of NaCl stress on seed germination and physiological and biochemical characteristics of quinoa seedlings [D]. Hefei: Anhui Agricultural University,2016.
18	柯玉琴, 潘廷国. NaCl胁迫对甘薯叶片叶绿体超微结构及一些酶活性的影响[J]. 植物生理学报, 1999, 25(3):229-233,315-316.
	KE Y Q, PAN T G. Effects of NaCl stress on chlorophyll ultrastructure and enzyme activities of sweet potato leaves [J]. Acta Phytophysiol. Sin., 1999, 25(3):229-233,315-316.
19	LI M, ZHANG J, LI Y J. Effects of salt stress on physiological indexes of Osier variety L0911 [J]. Acta Agric. Jiangxi, 2012,24(8):56-58.
20	刘雅辉, 王秀萍, 张国新, 等. 棉花苗期耐盐生理指标的筛选及综合评价[J].中国农学通报, 2012, 28(6):73-78.
	LIU Y H, WANG X P, ZHANG G X, et al.. Study on selection of physiological indices for salt tolerance and comprehensive evaluation of cotton during seedling stage [J]. Chin. Agric. Sci. Bull., 2012, 28(6):73-78.
21	KIM S W, JEONG H J, JUNG K H. Integrating omics analysis of salt stress - responsive genes in rice [J]. Genes Genomics,2015,37(8):645-655.
22	刘自刚, 王志江, 方圆, 等. NaCl胁迫对白菜型冬油菜种子萌发和幼苗生理的影响[J]. 中国油料作物学报, 2017,39(3) :351-359.
	LIU Z G, WANG Z J, FANG Y, et al.. Effect of salt stress on seed germination and seedling physiology of winter rapeseed (Brassica rapa L.) [J]. Chin. J. Oil Crop Sci.,2017,39(3) :351-359.
23	高俊凤. 植物生理学实验技术[M]. 北京:高等教育出版社, 2010:101-103.
24	朱红霞, 郭晖, 张家洋. NaCl 胁迫对龟背竹生理生化特性的影响[J]. 河南农业科学, 2016, 45(9): 98-101, 106.
	ZHU H X, GUO H, ZHANG J Y. Effect of NaCl stress on physiological and biochemical characteristics of M. deliciosa Liebm [J]. J. Henan Agric. Sci., 2016,45(9):98-101, 106.
25	周丽, 郎多勇, 张文晋, 等. NaCl 胁迫对银柴胡生长及生理生化特性的影响[J]. 中草药, 2014,45(19):2829-2833.
	ZHOU L, LANG D Y, ZHANG W J,et al.. Effect of NaCl stress on growth and physiological-biochemical characteristics of Stellaria dichotoma [J]. Chin. Traditional Herbal Drugs, 2014, 45(19):2829-2833.

指标 Index	品种 Variety	NaCl浓度 NaCl concentration/（mmol·L^-1）
指标 Index	品种 Variety	0（CK）	50	100	150	200	250	300	350	400
发芽率 Germination percentage/%	NXSG56	100.00 a	99.33 a	100.00 a	97.33 a	93.33 a	87.33 ab	78.00 a	74.00 a	57.33 b
	NXSG85	98.67 a	99.33 a	100.00 a	98.00 a	94.67 a	92.67 a	81.33 a	78.67 a	67.33 a
	HP9	95.33 ab	96.67 ab	99.33 ab	90.67 b	85.33 b	82.67 bc	67.33 b	42.00 b	30.67 c
	GY3	84.67 c	90.67 c	94.00 c	89.33 b	81.33 b	70.67 d	29.33 c	21.33 c	18.67 d
	QA13-9	93.33 b	94.00 bc	94.67 bc	86.67 b	85.33 b	77.33 c	18.67 d	14.67 c	11.33 d
发芽势 Germination energy/%	NXSG56	97.67 a	98.00 a	99.33 a	94.33 a	84.33 b	50.67 c	31.00 b	17.00 b	6.67 b
	NXSG85	98.00 a	98.00 a	99.00 a	94.33 a	89.67 a	88.33 a	55.33 a	47.00 a	20.00 a
	HP9	85.33 b	79.33 c	94.00 b	79.33 b	50.00 d	40.67 d	2.00 e	0.00 d	0.00 d
	GY3	81.33 c	82.33 c	83.00 c	75.67 bc	70.67 c	68.00 b	11.00 c	8.33 c	0.00 d
	QA13-9	94.67 a	89.33 b	93.33 b	75.00 c	46.33 e	50.33 c	4.67 d	0.00 d	3.67 c
相对盐害率 Relative salt injury indexes/%	NXSG56	0.00 a	0.67 a	0.00 a	2.67 ab	6.67 a	12.67 ab	22.00 cd	26.00 d	42.67 d
	NXSG85	0.00 a	-0.69 a	-1.36 a	0.68 ab	4.07 a	6.10 b	17.55 d	20.24 d	31.71 e
	HP9	0.00 a	-1.48 a	-4.26 ab	4.88 a	10.41 a	13.30 ab	29.30 c	55.96 c	67.78 c
	GY3	0.00 a	-7.22 a	-11.05 b	-5.64 b	3.82 a	16.33 ab	65.22 b	74.75 b	77.98 b
	QA13-9	0.00 a	-0.88 a	-1.64 a	6.94 a	8.46 a	16.92 a	79.86 a	84.22 a	87.88 a
相对发芽率 Relative germination ercentage/%	NXSG56	100.00 a	99.33 a	100.00 b	97.33 ab	93.33 a	87.33 ab	78.00 ab	74.00 a	57.33 b
	NXSG85	100.00 a	100.69 a	101.36 b	99.32 ab	95.93 a	93.90 a	82.45 a	79.76 a	68.29 a
	HP9	100.00 a	101.48 a	104.26 ab	95.12 b	89.59 a	86.70 ab	70.70 b	44.04 b	32.22 c
	GY3	100.00 a	107.22 a	111.05 a	105.64 a	96.18 a	83.67 ab	34.78 c	25.25 c	22.02 d
	QA13-9	100.00 a	100.88 a	101.64 b	93.06 b	91.54 a	83.08 b	20.14 d	15.78 d	12.12 e
胚根长 Radicle length/mm	NXSG56	41.20 a	40.08 a	35.19 b	33.23 b	31.17 b	25.09 b	12.40 b	8.23 a	5.01 b
	NXSG85	43.19 a	40.31 a	38.04 a	37.07 a	34.08 a	29.54 a	14.42 a	9.13 a	7.10 a
	HP9	38.09 b	35.02 b	30.17 c	24.96 c	19.94 c	14.05 c	11.98 b	9.14 a	6.20 a
	GY3	34.10 c	31.14 c	25.03 d	21.04 d	17.18 d	12.08 c	9.07 c	5.08 b	4.97 b
	QA13-9	33.45 c	29.65 c	26.93 d	19.46 d	14.64 e	12.18 c	8.04 c	6.06 b	4.10 b
根长抑制率 Inhibition rate of root length/%	NXSG56	0.00 a	2.53 a	14.51 bc	19.13 b	24.17 b	39.14 b	69.93 bc	80.03 bc	87.84 a
	NXSG85	0.00 a	6.68 a	11.88 c	14.11 b	20.99 b	31.62 c	66.56 c	78.83 c	83.57 b
	HP9	0.00 a	8.09 a	20.77 ab	34.40 a	47.58 a	63.09 a	68.50 bc	76.02 d	83.72 b
	GY3	0.00 a	8.61 a	26.68 a	38.30 a	49.55 a	64.61 a	73.38 ab	85.10 a	85.44 b
	QA13-9	0.00 a	11.25 a	19.34 abc	41.79 a	56.21 a	63.57 a	76.02 a	81.88 b	87.73 a

指标 Index	品种 Variety	NaCl浓度 NaCl concentration/（mmol·L^-1）
指标 Index	品种 Variety	0（CK）	50	100	150	200	250	300	350	400
发芽率 Germination percentage/%	NXSG56	100.00 a	99.33 a	100.00 a	97.33 a	93.33 a	87.33 ab	78.00 a	74.00 a	57.33 b
	NXSG85	98.67 a	99.33 a	100.00 a	98.00 a	94.67 a	92.67 a	81.33 a	78.67 a	67.33 a
	HP9	95.33 ab	96.67 ab	99.33 ab	90.67 b	85.33 b	82.67 bc	67.33 b	42.00 b	30.67 c
	GY3	84.67 c	90.67 c	94.00 c	89.33 b	81.33 b	70.67 d	29.33 c	21.33 c	18.67 d
	QA13-9	93.33 b	94.00 bc	94.67 bc	86.67 b	85.33 b	77.33 c	18.67 d	14.67 c	11.33 d
发芽势 Germination energy/%	NXSG56	97.67 a	98.00 a	99.33 a	94.33 a	84.33 b	50.67 c	31.00 b	17.00 b	6.67 b
	NXSG85	98.00 a	98.00 a	99.00 a	94.33 a	89.67 a	88.33 a	55.33 a	47.00 a	20.00 a
	HP9	85.33 b	79.33 c	94.00 b	79.33 b	50.00 d	40.67 d	2.00 e	0.00 d	0.00 d
	GY3	81.33 c	82.33 c	83.00 c	75.67 bc	70.67 c	68.00 b	11.00 c	8.33 c	0.00 d
	QA13-9	94.67 a	89.33 b	93.33 b	75.00 c	46.33 e	50.33 c	4.67 d	0.00 d	3.67 c
相对盐害率 Relative salt injury indexes/%	NXSG56	0.00 a	0.67 a	0.00 a	2.67 ab	6.67 a	12.67 ab	22.00 cd	26.00 d	42.67 d
	NXSG85	0.00 a	-0.69 a	-1.36 a	0.68 ab	4.07 a	6.10 b	17.55 d	20.24 d	31.71 e
	HP9	0.00 a	-1.48 a	-4.26 ab	4.88 a	10.41 a	13.30 ab	29.30 c	55.96 c	67.78 c
	GY3	0.00 a	-7.22 a	-11.05 b	-5.64 b	3.82 a	16.33 ab	65.22 b	74.75 b	77.98 b
	QA13-9	0.00 a	-0.88 a	-1.64 a	6.94 a	8.46 a	16.92 a	79.86 a	84.22 a	87.88 a
相对发芽率 Relative germination ercentage/%	NXSG56	100.00 a	99.33 a	100.00 b	97.33 ab	93.33 a	87.33 ab	78.00 ab	74.00 a	57.33 b
	NXSG85	100.00 a	100.69 a	101.36 b	99.32 ab	95.93 a	93.90 a	82.45 a	79.76 a	68.29 a
	HP9	100.00 a	101.48 a	104.26 ab	95.12 b	89.59 a	86.70 ab	70.70 b	44.04 b	32.22 c
	GY3	100.00 a	107.22 a	111.05 a	105.64 a	96.18 a	83.67 ab	34.78 c	25.25 c	22.02 d
	QA13-9	100.00 a	100.88 a	101.64 b	93.06 b	91.54 a	83.08 b	20.14 d	15.78 d	12.12 e
胚根长 Radicle length/mm	NXSG56	41.20 a	40.08 a	35.19 b	33.23 b	31.17 b	25.09 b	12.40 b	8.23 a	5.01 b
	NXSG85	43.19 a	40.31 a	38.04 a	37.07 a	34.08 a	29.54 a	14.42 a	9.13 a	7.10 a
	HP9	38.09 b	35.02 b	30.17 c	24.96 c	19.94 c	14.05 c	11.98 b	9.14 a	6.20 a
	GY3	34.10 c	31.14 c	25.03 d	21.04 d	17.18 d	12.08 c	9.07 c	5.08 b	4.97 b
	QA13-9	33.45 c	29.65 c	26.93 d	19.46 d	14.64 e	12.18 c	8.04 c	6.06 b	4.10 b
根长抑制率 Inhibition rate of root length/%	NXSG56	0.00 a	2.53 a	14.51 bc	19.13 b	24.17 b	39.14 b	69.93 bc	80.03 bc	87.84 a
	NXSG85	0.00 a	6.68 a	11.88 c	14.11 b	20.99 b	31.62 c	66.56 c	78.83 c	83.57 b
	HP9	0.00 a	8.09 a	20.77 ab	34.40 a	47.58 a	63.09 a	68.50 bc	76.02 d	83.72 b
	GY3	0.00 a	8.61 a	26.68 a	38.30 a	49.55 a	64.61 a	73.38 ab	85.10 a	85.44 b
	QA13-9	0.00 a	11.25 a	19.34 abc	41.79 a	56.21 a	63.57 a	76.02 a	81.88 b	87.73 a

指标 Index	取样时间 Sampling time/d	品种 Variety	NaCl浓度 NaCl concentration/（mmol·L^-1）
指标 Index	取样时间 Sampling time/d	品种 Variety	0（CK）	50	100	150	200	250	300	350	400
地下部分鲜重 Fresh weight of under-ground part/g	10	NXSG56	0.057 9 c	0.062 3 c	0.070 3 b	0.079 2 b	0.087 5 b	0.061 4 b	0.050 1 b	0.041 1 b	0.035 0 b
		NXSG85	0.066 9 a	0.080 3 a	0.087 0 a	0.096 3 a	0.099 5 a	0.072 8 a	0.061 1 a	0.049 2 a	0.041 3 a
		HP9	0.061 1 b	0.068 3 b	0.069 1 c	0.070 7 c	0.074 1 c	0.0607 b	0.048 5 c	0.040 2 c	0.033 6 c
		GY3	0.057 6 c	0.046 1 d	0.058 7 d	0.062 5 d	0.068 8 d	0.057 3 c	0.040 5 d	0.037 2 d	0.030 8 d
		QA13-9	0.048 6 d	0.040 0 e	0.044 6 e	0.052 6 e	0.055 8 e	0.050 3 d	0.037 5 e	0.030 2 e	0.028 8 e
	15	NXSG56	0.096 9 a	0.095 4 b	0.113 9 b	0.145 9 b	0.153 6 b	0.123 9 b	0.098 1 b	0.081 8 b	0.067 7 b
		NXSG85	0.098 4 a	0.099 3 a	0.125 8 a	0.150 2 a	0.159 7 a	0.135 1 a	0.110 2 a	0.089 3 a	0.075 7 a
		HP9	0.086 0 b	0.090 7 c	0.105 4 c	0.135 3 c	0.139 8 c	0.115 2 c	0.100 3 b	0.075 3 c	0.055 8 d
		GY3	0.082 4 c	0.089 7 c	0.106 4 c	0.121 2 d	0.129 9 d	0.108 5 d	0.101 3 b	0.065 3 d	0.060 8 c
		QA13-9	0.080 2 c	0.091 2 c	0.098 2 d	0.117 4 e	0.129 9 d	0.108 3 d	0.101 3 b	0.059 8 e	0.054 8 d
地下部分干重 Dry weight of under-ground part/g	5	NXSG56	0.003 2 bc	0.004 1 b	0.004 9 a	0.006 1 b	0.007 8 b	0.008 6 b	0.006 8 a	0.005 1 b	0.004 2 b
		NXSG85	0.004 3 a	0.006 1 a	0.005 7 a	0.008 4 a	0.008 9 a	0.009 7 a	0.007 1 a	0.006 6 a	0.005 1 a
		HP9	0.003 5 b	0.004 1 b	0.005 2 a	0.005 9 b	0.008 1 ab	0.008 4 b	0.006 4 a	0.005 3 b	0.004 9 ab
		GY3	0.002 5 cd	0.003 7 b	0.004 0 b	0.005 5 b	0.006 3 c	0.007 8 b	0.005 4 b	0.004 8 b	0.003 4 c
		QA13-9	0.001 8 d	0.002 6 c	0.003 4 b	0.004 1 c	0.005 7 c	0.006 2 c	0.004 8 b	0.003 6 c	0.002 1 d
	10	NXSG56	0.007 2 b	0.007 8 b	0.009 3 ab	0.010 8 b	0.012 7 b	0.011 3 b	0.009 5 ab	0.007 6 b	0.007 1 b
		NXSG85	0.008 6 a	0.009 3 a	0.010 1 a	0.014 5 a	0.013 7 a	0.012 4 a	0.010 3 a	0.009 3 a	0.008 1 a
		HP9	0.006 9 b	0.0070 bc	0.008 5 bc	0.009 4 c	0.010 9 c	0.009 1 b	0.008 0 c	0.006 7 c	0.005 8 c
		GY3	0.006 5 bc	0.006 1 d	0.007 8 cd	0.009 5 c	0.011 6 c	0.011 1 b	0.009 7 a	0.008 5 a	0.007 3 ab
		QA13-9	0.005 8 c	0.006 8 cd	0.007 1 d	0.008 4 d	0.009 8 d	0.010 7 c	0.008 6 ab	0.007 2 bc	0.005 8 c
	15	NXSG56	0.014 8 b	0.016 5 b	0.016 8 b	0.018 5 b	0.020 5 b	0.017 9 b	0.015 9 b	0.012 0 b	0.010 2 b
		NXSG85	0.018 8 a	0.019 5 a	0.019 7 a	0.021 8 a	0.027 5 a	0.018 8 a	0.017 9 a	0.014 2 a	0.012 2 a
		HP9	0.013 7 c	0.014 5 c	0.014 8 c	0.017 5 c	0.019 4 c	0.017 1 c	0.014 4 c	0.011 8 c	0.009 2 c
		GY3	0.009 7 d	0.012 5 d	0.014 8 c	0.016 5 d	0.017 0 d	0.014 1 d	0.010 4 d	0.007 8 d	0.005 5 d
		QA13-9	0.006 7 e	0.008 5 e	0.009 4 d	0.010 5 e	0.012 7 e	0.008 7 e	0.054 0 e	0.004 8 e	0.003 2 e

指标 Index	取样时间 Sampling time/d	品种 Variety	NaCl浓度 NaCl concentration/（mmol·L^-1）
指标 Index	取样时间 Sampling time/d	品种 Variety	0（CK）	50	100	150	200	250	300	350	400
地下部分鲜重 Fresh weight of under-ground part/g	10	NXSG56	0.057 9 c	0.062 3 c	0.070 3 b	0.079 2 b	0.087 5 b	0.061 4 b	0.050 1 b	0.041 1 b	0.035 0 b
		NXSG85	0.066 9 a	0.080 3 a	0.087 0 a	0.096 3 a	0.099 5 a	0.072 8 a	0.061 1 a	0.049 2 a	0.041 3 a
		HP9	0.061 1 b	0.068 3 b	0.069 1 c	0.070 7 c	0.074 1 c	0.0607 b	0.048 5 c	0.040 2 c	0.033 6 c
		GY3	0.057 6 c	0.046 1 d	0.058 7 d	0.062 5 d	0.068 8 d	0.057 3 c	0.040 5 d	0.037 2 d	0.030 8 d
		QA13-9	0.048 6 d	0.040 0 e	0.044 6 e	0.052 6 e	0.055 8 e	0.050 3 d	0.037 5 e	0.030 2 e	0.028 8 e
	15	NXSG56	0.096 9 a	0.095 4 b	0.113 9 b	0.145 9 b	0.153 6 b	0.123 9 b	0.098 1 b	0.081 8 b	0.067 7 b
		NXSG85	0.098 4 a	0.099 3 a	0.125 8 a	0.150 2 a	0.159 7 a	0.135 1 a	0.110 2 a	0.089 3 a	0.075 7 a
		HP9	0.086 0 b	0.090 7 c	0.105 4 c	0.135 3 c	0.139 8 c	0.115 2 c	0.100 3 b	0.075 3 c	0.055 8 d
		GY3	0.082 4 c	0.089 7 c	0.106 4 c	0.121 2 d	0.129 9 d	0.108 5 d	0.101 3 b	0.065 3 d	0.060 8 c
		QA13-9	0.080 2 c	0.091 2 c	0.098 2 d	0.117 4 e	0.129 9 d	0.108 3 d	0.101 3 b	0.059 8 e	0.054 8 d
地下部分干重 Dry weight of under-ground part/g	5	NXSG56	0.003 2 bc	0.004 1 b	0.004 9 a	0.006 1 b	0.007 8 b	0.008 6 b	0.006 8 a	0.005 1 b	0.004 2 b
		NXSG85	0.004 3 a	0.006 1 a	0.005 7 a	0.008 4 a	0.008 9 a	0.009 7 a	0.007 1 a	0.006 6 a	0.005 1 a
		HP9	0.003 5 b	0.004 1 b	0.005 2 a	0.005 9 b	0.008 1 ab	0.008 4 b	0.006 4 a	0.005 3 b	0.004 9 ab
		GY3	0.002 5 cd	0.003 7 b	0.004 0 b	0.005 5 b	0.006 3 c	0.007 8 b	0.005 4 b	0.004 8 b	0.003 4 c
		QA13-9	0.001 8 d	0.002 6 c	0.003 4 b	0.004 1 c	0.005 7 c	0.006 2 c	0.004 8 b	0.003 6 c	0.002 1 d
	10	NXSG56	0.007 2 b	0.007 8 b	0.009 3 ab	0.010 8 b	0.012 7 b	0.011 3 b	0.009 5 ab	0.007 6 b	0.007 1 b
		NXSG85	0.008 6 a	0.009 3 a	0.010 1 a	0.014 5 a	0.013 7 a	0.012 4 a	0.010 3 a	0.009 3 a	0.008 1 a
		HP9	0.006 9 b	0.0070 bc	0.008 5 bc	0.009 4 c	0.010 9 c	0.009 1 b	0.008 0 c	0.006 7 c	0.005 8 c
		GY3	0.006 5 bc	0.006 1 d	0.007 8 cd	0.009 5 c	0.011 6 c	0.011 1 b	0.009 7 a	0.008 5 a	0.007 3 ab
		QA13-9	0.005 8 c	0.006 8 cd	0.007 1 d	0.008 4 d	0.009 8 d	0.010 7 c	0.008 6 ab	0.007 2 bc	0.005 8 c
	15	NXSG56	0.014 8 b	0.016 5 b	0.016 8 b	0.018 5 b	0.020 5 b	0.017 9 b	0.015 9 b	0.012 0 b	0.010 2 b
		NXSG85	0.018 8 a	0.019 5 a	0.019 7 a	0.021 8 a	0.027 5 a	0.018 8 a	0.017 9 a	0.014 2 a	0.012 2 a
		HP9	0.013 7 c	0.014 5 c	0.014 8 c	0.017 5 c	0.019 4 c	0.017 1 c	0.014 4 c	0.011 8 c	0.009 2 c
		GY3	0.009 7 d	0.012 5 d	0.014 8 c	0.016 5 d	0.017 0 d	0.014 1 d	0.010 4 d	0.007 8 d	0.005 5 d
		QA13-9	0.006 7 e	0.008 5 e	0.009 4 d	0.010 5 e	0.012 7 e	0.008 7 e	0.054 0 e	0.004 8 e	0.003 2 e

指标 Index	品种 Variety	NaCl浓度 NaCl concentration /（mmol·L^-1）
指标 Index	品种 Variety	0（CK）	50	100	150	200	250	300	350	400
叶片K⁺含量 K⁺content in leaf/ （mmol·g^-1）	NXSG56	0.90 c	0.83 b	0.80 b	0.79 bc	0.71 b	0.58 c	0.53 b	0.51 b	0.42 b
	NXSG85	1.04 a	0.93 a	0.89 a	0.82 b	0.79 a	0.72 a	0.69 a	0.61 a	0.47 a
	HP9	0.88 c	0.80 c	0.79 b	0.78 c	0.76 a	0.64 b	0.51 c	0.43 c	0.38 c
	GY3	0.97 b	0.94 a	0.90 a	0.89 a	0.78 a	0.66 b	0.53 c	0.41 c	0.35 d
	QA13-9	0.88 c	0.72 d	0.69 c	0.57 d	0.60 c	0.46 d	0.44 d	0.37 d	0.33 d
叶片Na⁺含量 Na⁺content in leaf/（mmol·g^-1）	NXSG56	0.11 b	0.15 b	0.20 b	0.28 b	0.36 b	0.47 b	0.59 b	0.66 b	0.79 b
	NXSG85	0.16 a	0.23 a	0.29 a	0.35 a	0.46 a	0.55 a	0.71 a	0.77 a	0.88 a
	HP9	0.09 bc	0.10 c	0.14 c	0.19 d	0.26 d	0.38 c	0.47 d	0.53 d	0.67 d
	GY3	0.07 cd	0.09 c	0.12 c	0.23 c	0.30 c	0.43 bc	0.54 c	0.59 c	0.62 e
	QA13-9	0.06 d	0.07 d	0.09 d	0.10 e	0.13 e	0.15 d	0.34 e	0.58 c	0.72 b
叶片K⁺/Na⁺ K⁺/Na⁺in leaf	NXSG56	8.54 bc	5.71 c	4.03 c	2.88 c	2.00 d	1.25 b	0.90 c	0.78 c	0.53 c
	NXSG85	7.64 c	9.15 ab	7.62 a	7.34 a	6.07 a	6.38 a	2.61 a	1.61 a	1.44 a
	HP9	10.15 b	7.79 b	5.85 b	4.05 b	2.94 b	1.66 b	1.10 b	0.80 c	0.57 c
	GY3	14.07 a	10.49 a	7.57 a	3.87 b	2.61 c	1.55 b	0.98 c	0.70 d	0.56 c
	QA13-9	2.10 d	1.64 d	1.51 d	1.31 d	1.31 c	1.04 b	0.98 c	0.94 b	1.00 b