Drought tolerance evaluation of four species of Ormosia

doi:10.3969/j.issn.1004-1524.20230117

Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (2): 308-324.DOI: 10.3969/j.issn.1004-1524.20230117

• Horticultural Science • Previous Articles Next Articles

Drought tolerance evaluation of four species of Ormosia

TIAN Xiaoming(), XIANG Guangfeng, MOU Cun, LYU Hao, MA Tao, ZHU Lu, PENG Jing, ZHANG Min, HE Yan

Hunan Botanical Garden, Changsha 410116, China

Received:2023-02-09 Online:2024-02-25 Published:2024-03-05

Abstract

Abstract:

In order to explore the physiological response mechanisms and differences in drought tolerance among four species of Ormosia, including Ormosia semiastrata, Ormosia henryi, Ormosia xylocarpa, and Ormosia hosiei, under drought stress and rehydration conditions, a pot culture method was conducted using four species of Ormosia as test materials. The experiment set up four treatment groups, namely, control group (CK), mild drought group (LD), moderate drought group (MD), and severe drought group (SD). After 28 days of drought stress, all test materials were subjected to rehydration treatment. Changes in plant morphological, physiological, and photosynthetic characteristics were measured on 0, 7, 14, 21, 28, and 42 days (14 days after rehydration) of the experiment, and the drought tolerance of the four species of Ormosia was comprehensively evaluated using principal component analysis and membership function analysis. The results showed that the SD treatment group of four species of Ormosia all showed significant drought damage symptoms, while the O. xylocarpa showed the earliest and the most severe drought damage symptoms, while the O. hosiei showed the least drought damage symptoms. As the degree of drought stress increased and the duration of stress prolonged, the relative water content (RWC) of leaves decreased, while electrical conductivity (REC) and malondialdehyde (MDA) content gradually increased. The activity of superoxide dismutase (SOD), soluble protein (SP) and chlorophyll (CHL) content first increased and then decreased. The Net photosynthetic rate of leaf (P_n), stomatal conductance (G_s), and transpiration rate (T_r) gradually decreased, while intercellular CO₂ concentration (C_i) first decreased and then increased. After 14 days of rehydration treatment, except for the death of the plants in the SD treatment group of O. xylocarpa, the symptoms of drought damage in each treatment group of four species of Ormosia were alleviated, while RWC, SOD activity, SP content, CHL content, P_n, G_s and T_r showed an upward trend, REC and MDA content showed a downward trend, with the most significant changes in indicators in the SD group. REC, P_n, G_s and T_r were selected as the key index for drought tolerance evaluation of four species of Ormosia by principal component analysis, and the drought tolerance of four species of Ormosia was comprehensively evaluated by membership function analysis. The order from strong to weak was: O. hosiei, O. henryi, O. xylocarpa, O. semiastrata. The research results could provide theoretical basis for the protection, drought resistance breeding and cultivation application of Ormosia.

Key words: Ormosia, drought stress, physiological response, rehydration, comprehensive evaluation

CLC Number:

S718.43
Q945

TIAN Xiaoming, XIANG Guangfeng, MOU Cun, LYU Hao, MA Tao, ZHU Lu, PENG Jing, ZHANG Min, HE Yan. Drought tolerance evaluation of four species of Ormosia[J]. Acta Agriculturae Zhejiangensis, 2024, 36(2): 308-324.

Figures/Tables 15

References 41

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简称 Abbreviation	名称 Name	来源 Source	株高 Plant height/cm	地径 Ground diameter/mm
RJ	软荚红豆Ormosia semicastrata	湖南省通道县Tongdao County, Hunan Province	37.2~42.4	6.42~7.59
HLM	花榈木Ormosia henryi	湖南省长沙县Changsha County, Hunan Province	39.3~45.5	8.87~10.37
MJ	木荚红豆Ormosia xylocarpa	湖南省江华县Jianghua County, Hunan Province	50.5~55.6	10.69~14.45
EX	鄂西红豆Ormosia hosiei	湖北省恩施市Enshi City, Hubei Province	21.1~27.4	4.38~5.51

简称 Abbreviation	名称 Name	来源 Source	株高 Plant height/cm	地径 Ground diameter/mm
RJ	软荚红豆Ormosia semicastrata	湖南省通道县Tongdao County, Hunan Province	37.2~42.4	6.42~7.59
HLM	花榈木Ormosia henryi	湖南省长沙县Changsha County, Hunan Province	39.3~45.5	8.87~10.37
MJ	木荚红豆Ormosia xylocarpa	湖南省江华县Jianghua County, Hunan Province	50.5~55.6	10.69~14.45
EX	鄂西红豆Ormosia hosiei	湖北省恩施市Enshi City, Hubei Province	21.1~27.4	4.38~5.51

处理 Treatment	株高相对生长量Relative growth of plant height/cm				地径相对生长量Relative growth of diameter/mm
处理 Treatment	RJ	HLM	MJ	EX	RJ	HLM	MJ	EX
CK	4.70±0.61 a	1.30±0.22 b	1.57±0.25 a	1.47±0.20 a	0.37±0.07 b	0.33±0.04 a	0.16±0.02 a	0.21±0.02 a
LD	1.60±0.54 b	2.84±0.36 a	1.00±0.26 b	1.13±0.26 b	0.49±0.04 a	0.23±0.04 b	0.09±0.01 b	0.17±0.02 b
MD	0.96±0.23 bc	0.92±0.18 c	0.73±0.25 bc	0.76±0.13 c	0.13±0.03 c	0.20±0.02 b	0.08±0.02 b	0.15±0.02 c
SD	1.12±0.30 c	0.82±0.20 c	0.40±0.10 c	0.63±0.11 c	0.11±0.01 c	0.21±0.04 b	0.09±0.03 b	0.12±0.02 d

处理 Treatment	株高相对生长量Relative growth of plant height/cm				地径相对生长量Relative growth of diameter/mm
处理 Treatment	RJ	HLM	MJ	EX	RJ	HLM	MJ	EX
CK	4.70±0.61 a	1.30±0.22 b	1.57±0.25 a	1.47±0.20 a	0.37±0.07 b	0.33±0.04 a	0.16±0.02 a	0.21±0.02 a
LD	1.60±0.54 b	2.84±0.36 a	1.00±0.26 b	1.13±0.26 b	0.49±0.04 a	0.23±0.04 b	0.09±0.01 b	0.17±0.02 b
MD	0.96±0.23 bc	0.92±0.18 c	0.73±0.25 bc	0.76±0.13 c	0.13±0.03 c	0.20±0.02 b	0.08±0.02 b	0.15±0.02 c
SD	1.12±0.30 c	0.82±0.20 c	0.40±0.10 c	0.63±0.11 c	0.11±0.01 c	0.21±0.04 b	0.09±0.03 b	0.12±0.02 d

物种 Species	处理组 Treatment	不同时间(d)的丙二醛含量Malondialdehyde content at different time (d)
物种 Species	处理组 Treatment	0	7	14	21	28	42
RJ	CK	0.025 abA	0.022 abA	0.021 bC	0.029 aC	0.027 abC	0.026 abB
	LD	0.027 bA	0.028 bA	0.027 bB	0.030 bBC	0.041 aB	0.029 bAB
	MD	0.021 cA	0.027 bcA	0.029 bAB	0.033 bB	0.047 aAB	0.029 bAB
	SD	0.022 dA	0.031 cA	0.032 cA	0.040 bA	0.055 aA	0.034 bcA
HLM	CK	0.030 aA	0.0320 aA	0.030 aB	0.030 aB	0.032 aC	0.030 aA
	LD	0.030 bA	0.032 abA	0.035 abAB	0.037 abA	0.037 aBC	0.031 abA
	MD	0.030 cA	0.034 bcA	0.036 abcAB	0.038 abA	0.041 aB	0.032 bcA
	SD	0.029 eA	0.034 dA	0.039 cA	0.043 bA	0.049 aA	0.035 dA
MJ	CK	0.043 aA	0.043 aB	0.043 aB	0.043 aB	0.043 aD	0.039 aA
	LD	0.044 bcA	0.043 bcB	0.050 aA	0.045 bcB	0.048 abC	0.042 cA
	MD	0.041 cA	0.045 bcAB	0.050 abA	0.050 abA	0.054 aB	0.042 cA
	SD	0.042 dA	0.049 cA	0.054 bA	0.056 bA	0.060 aA	0.045 dA
EX	CK	0.030 aA	0.029 aA	0.030 aB	0.031 aC	0.031 aB	0.027 aA
	LD	0.027 bA	0.029 abA	0.035 aAB	0.034 abBC	0.034 abB	0.028 abA
	MD	0.030 bA	0.029 bA	0.037 aA	0.039 aAB	0.038 aB	0.029 bA
	SD	0.027 bA	0.030 bA	0.042 aA	0.041 aA	0.048 aA	0.032 bA

Drought tolerance evaluation of four species of Ormosia

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物种 Species	处理组 Treatment	不同时间(d)的相对电导率Relative conductivity at different time (d)
物种 Species	处理组 Treatment	0	7	14	21	28	42
RJ	CK	21.68 aA	21.99 aB	22.71 aB	23.95 aC	20.54 aD	23.31 aB
	LD	22.80 cA	26.86 bcA	29.55 abA	34.16 aB	28.4 bC	27.03 bcAB
	MD	23.63 cA	27.60 cA	32.47 bA	35.24 abB	38.33 aB	25.78 cAB
	SD	23.05 cA	28.56 bcA	32.55 bA	50.38 aA	50.73 aA	29.05 bA
HLM	CK	22.29 bA	26.63 aAB	24.3 abC	19.2 cC	23.53 bD	23.54 bC
	LD	25.23 bA	24.25 bBC	26.47 bC	32.48 aB	34.74 aC	26.92 bB
	MD	24.54 dA	20.82 dC	31.57 bcB	34.58 bB	39.95 aB	29.81 cAB
	SD	23.29 eA	29.46 dA	35.13 cA	40.42 bA	45.63 aA	30.85 dA
MJ	CK	23.01 aA	22.7 aC	24.09 aC	22.66 aD	22.9 aC	25.78 aB
	LD	20.87 bA	26.37 aB	24.29 abC	27.27 aC	27.1 aC	25.24 aB
	MD	21.20 dA	26.36 cB	30.79 bB	38.1 aB	40.85 aB	28.83 bcB
	SD	23.64 dA	33.25 cA	38.92 bA	43.23 bA	51.94 aA	38.29 bcA
EX	CK	22.52 abA	24.45 aAB	21.69 abC	22.63 abC	19.91 bD	23.66 aA
	LD	23.22 bcA	21.26 cB	24.72 abcBC	25.54 abB	28.17 aC	23.28 bcA
	MD	21.04 cA	27.93 bA	27.15 bAB	25.90 bB	32.80 aB	25.22 bA
	SD	24.36 dA	27.94 cdA	29.14 cA	33.69 bA	38.15 aA	27.72 cdA

物种 Species	处理组 Treatment	不同时间(d)的可溶性蛋白含量Soluble protein content at different time (d)
物种 Species	处理组 Treatment	0	7	14	21	28	42
RJ	CK	4.21 aA	4.18 aA	3.77 abB	3.75 abAB	4.19 aA	3.62 bA
	LD	3.84 bA	4.18 abA	4.22 abAB	4.30 abA	4.48 aA	3.71 bA
	MD	3.79 bA	4.26 abA	4.28 abA	4.10 abAB	4.37 aA	3.04 cB
	SD	4.10 aA	4.27 aA	4.57 aA	3.50 bB	2.95 bB	3.37 bAB
HLM	CK	12.57 aA	13.08 aA	12.36 aA	11.71 aC	12.42 aAB	12.50 aA
	LD	11.87 aA	13.21 aA	13.17 aA	12.94 aB	12.70 aAB	12.65 aA
	MD	13.42 aA	13.43 aA	13.58 aA	14.07 aA	14.09 aA	13.94 aA
	SD	12.11 bcA	12.62 bcA	13.69 abA	14.88 aA	11.46 cB	12.60 bcA
MJ	CK	11.68 aA	11.52 aA	11.40 aC	10.91 aA	11.06 aA	11.24 aA
	LD	12.15 aA	12.18 aA	12.08 aBC	12.68 aA	12.64 aA	10.55 bA
	MD	12.15 aA	12.47 aA	12.94 aB	13.25 aA	12.47 aA	12.45 aA
	SD	11.89 bA	12.4 bA	14.75 aA	11.35 bA	8.70 cB	10.90 bA
EX	CK	15.26 aA	14.60 aB	14.85 aB	15.01 aAB	14.91 aAB	15.09 aA
	LD	15.15 aAB	14.49 aB	14.97 aB	15.38 aA	14.58 aB	14.60 aA
	MD	14.96 bB	15.00 bAB	15.44 abB	15.97 aA	15.54 abA	14.12 cA
	SD	15.23 bcA	15.48 bA	16.73 aA	14.10 cdB	12.38 eC	13.79 dA

物种 Species	处理组 Treatment	不同时间(d)的SOD活性 SOD activity at different time (d)
物种 Species	处理组 Treatment	0	7	14	21	28	42
RJ	CK	1 883.16 aA	1 962.42 aA	1 831.66 aB	1 871.25 aB	2 016.22 aB	2 080.92 aA
	LD	1 906.07 aA	1 915.09 aA	2 063.32 aB	2 006.37 aB	2 117.12 aB	2 039.83 aA
	MD	1 988.54 aA	2 360.35 aA	2 006.21 aB	2 131.87 aB	2 576.58 aA	2 152.90 aA
	SD	1 859.56 bA	2 355.83 abA	2 413.41 abA	2 753.98 aA	1 888.29 bB	2 074.08 bA
HLM	CK	551.09 cA	627.10 bcB	752.76 abcB	842.38 abcC	911.71 abB	935.57 aA
	LD	591.06 cA	731.98 cAB	1 251.40 abAB	1 572.98 aB	1 675.67 aA	1 011.53 bcA
	MD	630.24 dA	861.25 dAB	1 755.43 bA	2 212.87 aA	1 655.59 bA	1 262.47 cA
	SD	653.95 cA	1 000.36 cA	1 551.83 bA	2 207.78 aA	940.54 cB	1 065.06 cA
MJ	CK	1 161.28 aA	1 308.31 aA	1 453.14 aB	1 416.00 aB	1 486.49 aA	1 399.11 aA
	LD	1 008.48 cA	1 205.15 bcA	1 608.94 abB	1 608.35 abB	1 875.06 aA	1 556.30 abA
	MD	998.85 dA	1 187.62 cdA	2 026.07 abAB	2146.02 aA	1 659.46 abcA	1 553.73 bcA
	SD	1 079.27 cA	1 297.11 bcA	2 574.18 aA	1 688.15 bB	1 318.92 bcA	1 413.60 bcA
EX	CK	1 040.09 aA	1 039.48 aA	1 200.00 aB	1 079.73 aB	905.24 aB	1 093.18 aA
	LD	888.89 bA	1 159.17 aA	1 316.70 aAB	1 145.06 aB	1 214.60 aA	1 106.82 abA
	MD	1 082.13 bA	1 344.99 abA	1 350.71 abAB	1 732.32 aA	1 033.89 bAB	1 090.99 bA
	SD	1 001.38 bA	1 456.82 aA	1 698.33 aA	1 083.49 bB	630.66 cC	895.75 bcA

指标 Index	主成分1 Principal component 1	主成分2 Principal component 2	主成分3 Principal component 3
MDA	-0.782	-0.078	0.457
RWC	0.785	-0.334	-0.385
REC	-0.914	0.142	0.220
SOD	-0.218	-0.816	-0.363
CHL	-0.086	0.698	-0.596
SP	0.311	0.818	-0.103
P_n	0.968	-0.066	0.075
G_s	0.949	-0.034	0.264
C_i	0.568	0.175	0.574
T_r	0.908	-0.049	0.125
贡献特征值Eigenvalue	5.199	1.998	1.323
贡献率	51.989	19.979	13.232
Contribution rate/%
累计贡献率	51.989	71.967	85.199
Cumulative contribution rate/%

名称Name	处理Treatment	X₁	X₂	X₃	U(X₁)	U(X₂)	U(X₃)	D	排名Rank
RJ	CK	2.229	-2.045	-0.421	0.673	0.046	0.307	0.469	7
	LD	0.401	-2.013	-0.709	0.456	0.054	0.230	0.326	13
	MD	-1.642	-2.236	-0.991	0.213	0.000	0.154	0.154	15
	SD	-3.440	-1.448	0.958	0.000	0.189	0.677	0.150	16
HLM	CK	2.571	0.776	0.410	0.713	0.724	0.530	0.687	2
	LD	0.326	0.509	-1.314	0.447	0.660	0.067	0.438	8
	MD	-1.297	1.315	-1.565	0.254	0.853	0.000	0.355	10
	SD	-2.038	1.893	0.289	0.166	0.992	0.498	0.411	9
MJ	CK	2.853	-0.896	1.512	0.747	0.322	0.826	0.659	3
	LD	-0.294	-0.807	-0.549	0.373	0.343	0.273	0.351	11
	MD	-1.449	-0.133	0.327	0.236	0.505	0.508	0.342	12
	SD	-3.220	0.052	2.160	0.026	0.550	1.000	0.300	14
EX	CK	4.988	0.526	0.916	1.000	0.664	0.666	0.869	1
	LD	1.148	1.091	-0.958	0.544	0.800	0.163	0.545	4
	MD	-0.149	1.926	-0.860	0.391	1.000	0.189	0.502	5
	SD	-0.987	1.489	0.798	0.291	0.895	0.634	0.486	6
权重Weight					0.610	0.234	0.155

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