Effects of combined saline-alkali stress on physiological and biochemical characteristics of OT hybrid lily

doi:10.12302/j.issn.1000-2006.202105041

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (4): 117-126.doi: 10.12302/j.issn.1000-2006.202105041

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Effects of combined saline-alkali stress on physiological and biochemical characteristics of OT hybrid lily

YANG Yuhua(), JIAN Jingjing, QIU Xiaodie, WANG Guijiao, ZONG Jianwei()

College of Art,Henan University of Animal Husbandry and Economy,Zhengzhou 450046,China

Received:2021-05-24 Revised:2021-07-28 Online:2022-07-30 Published:2022-08-01
Contact: ZONG Jianwei E-mail:yyzdx2003@163.com;acbczjw@163.com

Abstract

Abstract:

【Objective】 In this study, we aimed to investigate the physiological response of lily (Lilium) to combined saline-alkali stress in the seedling growth stage. 【Method】 The bulbs of Lilium ‘Red Palace’ were treated with single salt (NaCl), neutral mixed salt [m(NaCl):m(Na₂SO₄)=1:2], and alkali mixed salt [m(NaCl):m(Na₂SO₄):m(Na₂CO₃):m(NaHCO₃) = 5:23:9:3)]to study the morphological indicators, biomass, root-to-shoot ratios, relative conductivity, malondialdehyde content, soluble protein, root vigor, relative water content and Na⁺ and K⁺ contents in lily leaves and rhizomes. 【Result】 (1)Compared with CK, the underground and total biomass and the root-shoot ratio of lily decreased under the three saline-alkali treatments. The above-ground biomass and morphology indexes increased initially and then decreased. (2) Malondial dehyde(MDA) content and relative conductivity were enhanced by saline-alkali. Moreover, root activity and soluble protein content increased in a low-salt environment, but decreased when the saline-alkali concentration exceeded a certain value. (3) Although the K⁺/Na⁺ ratios in the aboveground and underground seedlings decreased after all treatments, the ratio was lower for the alkaline mixed salt treatment than for the neutral mixed salt or single salt treatment. (4) The Two-way analysis of variances showed that the salt concentration had a greater effect on various indexes than salt combination; salt concentration and combination and their interaction effects had significant effects on the bulb diameter, total fresh and dry weight, root-shoot ratios, root activity and relative water content. 【Conclusion】 The results indicated that the three saline-alkali treatments groups on lily decreased in the following order: alkali mixed salt> neutral mixed salt > single salt. These results can provide a theoretical basis for the selection of suitable soil for lily cultivation.

Key words: saline-alkali stress, OT hybrid lily, Lilium ‘Red Palace’, morphology index, relative conductivity, root activity

CLC Number:

S718

YANG Yuhua, JIAN Jingjing, QIU Xiaodie, WANG Guijiao, ZONG Jianwei. Effects of combined saline-alkali stress on physiological and biochemical characteristics of OT hybrid lily[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2022, 46(4): 117-126.

Figures/Tables 8

Fig.1

Table 1

Responses of lily biomass and root-shoot ratios to saline-alkali stress"

处理 treatment	浓度/ (mmol·L^-1) concentration	地上部分生物量/g aboveground biomass		地下部分生物量/g underground biomass		总生物量/g total biomass		根冠比 ratio of root to shoot
处理 treatment	浓度/ (mmol·L^-1) concentration	鲜质量 fresh weight	干质量 dry weight	鲜质量 fresh weight	干质量 dry weight	鲜质量 fresh weight	干质量 dry weight	根冠比 ratio of root to shoot
单盐(Ⅰ) single salt	CK	45±1.54 b	6.09±0.10 b	80±2.65 a	26.93±0.41 a	125±1.21 a	33.01±0.48 a	4.42±0.06 a
	50	50±1.83 a	6.63±0.29 a	75±1.00 b	22.34±0.59 c	125±1.73 a	28.97±0.72 c	3.38±0.15 c
	100	48±1.67 ab	6.26±0.29 b	75±1.53 b	21.62±0.45 c	123±1.11 ab	27.88±0.20 d	3.46±0.22 c
	150	45±2.36 b	6.01±0.10 b	75±1.00 b	24.86±0.33 b	120±3.17 ab	30.87±0.43 b	4.14±0.01 b
	200	40±2.76 c	5.46±0.23 c	60±2.65 c	16.47±0.17 d	100±3.59 c	21.93±0.09 e	3.02±0.15 d
中性混合盐(Ⅱ) neutral mixed salt	CK	45±1.54 c	6.09±0.98 d	80±2.65 a	26.93±0.41 a	125±1.21 c	33.01±0.48 c	4.42±0.15 b
	50	55±1.37 b	9.56±0.21 b	72±1.73 b	26.37±1.39 b	127±1.84 bc	33.93±1.20 bc	2.55±0.28 b
	100	59±0.41 a	9.82±0.29 b	67±1.53 bc	24.80±0.16 b	128±1.54 b	34.62±0.26 b	2.53±0.50 b
	150	59±1.40 a	10.99±0.78 a	79±1.53 ac	27.95±0.53 a	139±0.36 a	38.95±0.38 a	2.55±0.50 ab
	200	42±0.65 d	7.78±0.21 c	58±0.58 c	16.02±0.91 c	101±0.54 d	23.79±0.70 d	2.06±0.58 a
碱性混合盐(Ⅲ) alkali mixed salt	CK	45±1.54 b	6.09±0.10 c	80±2.65 a	26.93±0.41 b	125±1.21 b	33.01±0.48 b	4.42±0.06 a
	50	65±2.17 a	8.75±0.22 a	85±3.61 a	31.85±0.73 a	150±1.46 a	40.60±0.81 a	3.64±0.10 b
	100	45±1.05 b	6.53±0.24 b	60±2.65 b	19.54±0.52 c	105±1.60 c	26.07±0.70 c	3.00±0.08 c
	150	45±1.23 b	6.35±0.17 bc	57±2.65 bc	18.60±0.07 cd	102±1.44 c	24.95±0.24 cd	2.93±0.07 c
	200	42±1.61 b	6.18±0.15 c	53±3.61 c	17.82±0.98 d	95±5.13 d	23.99±1.09 d	2.88±0.11 c

Table 1

Fig.2

Table 2

Fig.3

Table 3

Table 4

Table 5

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处理 treatment	浓度/ (mmol·L^-1) concentration	地上部分 aboveground section			地下部分 underground section
处理 treatment	浓度/ (mmol·L^-1) concentration	c(Na⁺) / (mmol·g^-1)	c(K⁺)/ (mmol·g^-1)	K⁺/Na⁺值 ratio of K⁺ to Na⁺	c(Na⁺) / (mmol·g^-1)	c(K⁺)/ (mmol·g^-1)	K⁺/Na⁺值 ratio of K⁺ to Na⁺
	0	1.69±0.13 e	14.19±0.25 ab	8.39±0.56 a	14.43±0.15 c	6.89±0.19 a	0.48±0.02 a
	50	1.98±0.09 d	14.28±0.24 a	7.21±0.13 b	14.66±0.14 bc	6.94±0.13 a	0.47±0.04 a
Ⅰ	100	2.26±0.12 c	14.30±0.28 a	6.33±0.21 c	15.57±0.35 b	6.95±0.07 a	0.45±0.03 a
	150	3.09±0.06 b	13.47±0.53 bc	4.36±0.12 d	16.69±0.92 a	6.60±0.33 a	0.40±0.04 b
	200	3.71±0.21 a	13.12±0.47 c	3.54±0.07 d	17.30±0.34 a	5.47±0.15 b	0.32±0.03 c
	0	1.69±0.13 d	14.19±0.25 a	8.39±0.56 a	14.43±0.15 d	6.89±0.19 a	0.48±0.02 a
	50	2.00±0.07 d	14.26±0.24 a	7.14±0.35 b	14.60±0.30 d	6.92±0.29 a	0.47±0.02 a
Ⅱ	100	2.35±0.20 c	13.90±0.14 a	5.92±0.45 c	15.16±0.27 c	6.55±0.17 ab	0.43±0.02 b
	150	3.19±0.24 b	13.12±0.30 b	4.12±0.28 d	16.30±0.32 b	6.13±0.42 bc	0.38±0.03 c
	200	3.86±0.12 a	11.89±0.24 c	3.08±0.12 e	20.19±0.30 a	5.68±0.17 c	0.28±0.01 d
	0	1.69±0.13 e	14.19±0.25 a	8.39±0.26 a	14.43±0.15 d	6.89±0.19 a	0.48±0.02 a
	50	2.67±0.08 d	14.20±0.22 a	5.32±0.11 b	16.60±0.50 c	6.90±0.24 a	0.42±0.05 b
Ⅲ	100	3.42±0.13 c	13.12±0.35 b	3.84±0.11 c	20.20±0.24 b	6.24±0.29 b	0.31±0.03 bc
	150	4.31±0.04 b	12.08±0.14 c	2.80±0.06 cd	20.70±0.50 b	5.93±0.26 b	0.29±0.03 bc
	200	4.99±0.09 a	10.90±0.38 d	2.18±0.17 d	21.77±0.71 a	4.89±0.47 c	0.22±0.03 c

胁变指标 strain index	盐浓度 salinity		盐处理 salt treatment		盐浓度×盐处理 salinity×salt treatment
胁变指标 strain index	F	P	F	P	F	P
相对电导率relative conductivity	7.216	0.001^**	0.960	0.527	1.970	0.138
丙二醛含量MDA content	0.816	0.530	0.891	0.588	0.288	0.882
可溶性蛋白含量soluble protein	0.837	0.517	0.364	0.978	0.293	0.879
总鲜质量total fresh weight	322.239	<0.001^**	62.796	<0.001^**	96.358	<0.001^**
总干质量total dry weight	434.150	<0.001^**	187.612	<0.001^**	150.211	<0.001^**
根冠比ratio of root to shoot	12.277	<0.001^**	92.936	<0.001^**	16.033	<0.001^**
根系活力root activity	557.806	<0.001^**	517.134	<0.001^**	691.707	<0.001^**
相对含水量relative water content	65.378	<0.001^**	20.139	<0.001^**	5.789	<0.001^**

处理 treatment	指标 index	总鲜质量 total fresh weight	总干质量 total dry weight	根冠比 ratio of root to shoot	相对电导率 relative conductivity	丙二醛含量 MDA content	可溶性蛋白含量 soluble protein content	根系活力 root activity	相对含水量 relative water content
	总鲜质量	1
	总干质量	0.994^**	1
	根冠比	0.662^**	0.676^**	1
Ⅰ	相对电导率	-0.422	-0.383	-0.485	1
	丙二醛含量	-0.189	-0.200	-0.288	-0.014	1
	可溶性蛋白含量	-0.347	-0.369	-0.189	-0.079	0.497	1
	根系活力	0.873^**	0.863^**	0.224	-0.174	-0.077	-0.354	1
	相对含水量	0.822^**	0.603^*	0.260	-0.257	-0.099	-0.656^**	0.829^**	1
	总鲜质量	1
	总干质量	0.987^**	1
	根冠比	-0.366	-0.347	1
Ⅱ	相对电导率	-0.422	-0.459	0.707^**	1
	丙二醛含量	-0.281	-0.226	0.096	0.029	1
	可溶性蛋白含量	-0.111	-0.110	-0.214	-0.207	0.263	1
	根系活力	0.516^*	0.529^*	0.399	0.316	0.066	0.111	1
	相对含水量	0.352	0.340	-0.684^**	-0.679^**	-0.008	-0.164	-0.397	1
	总鲜质量	1
	总干质量	0.844^**	1
	根冠比	0.560^*	0.883^**	1
Ⅲ	相对电导率	-0.492	-0.522^*	-0.522^*	1
	丙二醛含量	-0.015	0.017	0.017	-0.313	1
	可溶性蛋白含量	-0.504	-0.363	-0.363	0.014	-0.241	1
	根系活力	0.657^**	0.257	0.257	-0.306	0.022	-0.518^*	1
	相对含水量	0.849^**	0.818^**	0.739^**	-0.719^**	-0.298	-0.341	0.607^*	1

处理 treatment	总鲜质量 total fresh weight	总干质量 total dry weight	根冠比 ratio of root to shoot	相对电导率 relative conductivity	丙二醛含量 MDA content	可溶性蛋白含量 soluble protein content	根系活力 root activity	相对含水量 relative water content	平均值 mean
Ⅰ	0.251	0.404	0.527	0.538	0.462	0.405	0.564	0.360	0.439
Ⅱ	0.389	0.402	0.662	0.627	0.503	0.567	0.656	0.423	0.529
Ⅲ	0.629	0.655	0.681	0.670	0.542	0.529	0.729	0.397	0.604

Effects of combined saline-alkali stress on physiological and biochemical characteristics of OT hybrid lily

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[1]	ZHOU Sijie, WANG Ping, ZHANG Min, CHEN Shuzhan, XU Wen, ZHU Liting, HE Xiaoqin, GONG Shurui. Effects of atmospheric acid deposition on root physiological characteristics of Pinus massoniana seedlings [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2020, 44(4): 111-118.
[2]	LUO Ying, XUE Jianhui, YIN Lu, WU Dianming. Effects of simulated acid rain on NH⁺₄,NO^-₃,H⁺ ion fluxes in roots of Oenanthe javanica [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2012, 36(02): 101-105.
[3]	WU Wei, GAO Han-dong*, CAI Wei-jian. Effects of alkali-saline stress and NO treatment on root activity of Salix hybrid [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2008, 32(04): 59-62.