Drought stress introduces growth, physiological traits and ecological stoichiometry changes in two contrasting Cunninghamia lanceolata cultivars planted in continuous-plantation soils

Bian, Fangyuan; Wang, Yukui; Duan, Baoli; Wu, Zhizhuang; Zhang, Yuanbing; Bi, Yufang; Wang, Anke; Zhong, Hao; Du, Xuhua

doi:10.1186/s12870-021-03159-3

Table 1 Height increment (HI), basal diameter increment (DI), dry mass accumulation (DMA), root to shoot ratio (R/S), total chlorophyll content (TChl), chlorophyll a/b ratio (Chl_a/b), carotenoid content (Caro) in two cultivars with two-year-old seedlings of C.lanceolataas affected by water, soil and their interaction

From: Drought stress introduces growth, physiological traits and ecological stoichiometry changes in two contrasting Cunninghamia lanceolata cultivars planted in continuous-plantation soils

Cultivars	Water condition	Soil	HI (cm)	DI (mm)	DMA (g)	R/S	TChl	Chl_a/b	Caro
NC	CK	NP	26.03 ± 1.64a	5.42 ± 0.75ab	33.20 ± 4.13b	0.43 ± 0.06ab	0.96 ± 0.08d	2.45 ± 0.03bc	0.23 ± 0.00d
NC	CK	CP	16.13 ± 1.87de	3.34 ± 0.38e	14.29 ± 0.83e	0.41 ± 0.06b	0.92 ± 0.03d	2.47 ± 0.05b	0.22 ± 0.02d
NC	MWC	NP	19.75 ± 1.54 cd	4.26 ± 0.61 cd	19.23 ± 1.97d	0.44 ± 0.05ab	1.53 ± 0.00c	2.81 ± 0.06a	0.31 ± 0.06bc
NC	MWC	CP	11.79 ± 1.32f	3.10 ± 0.42e	9.15 ± 1.32 g	0.49 ± 0.01a	1.60 ± 0.19c	2.85 ± 0.13a	0.28 ± 0.02bc
NC	LWC	NP	14.49 ± 1.31ef	3.72 ± 0.36d	11.92 ± 1.69f	0.30 ± 0.02 cd	2.68 ± 0.34a	2.79 ± 0.17a	0.40 ± 0.02a
NC	LWC	CP	8.08 ± 1.03 g	3.11 ± 0.6e	7.63 ± 0.8 h	0.28 ± 0.03d	2.36 ± 0.17b	2.76 ± 0.02a	0.32 ± 0.05bc
SC	CK	NP	25.38 ± 1.35ab	5.59 ± 0.87a	41.42 ± 4.29a	0.40 ± 0.05b	1.06 ± 0.01d	2.22 ± 0.16c	0.25 ± 0.01 cd
SC	CK	CP	21.98 ± 1.93bc	4.78 ± 0.44bc	25.25 ± 2.65c	0.46 ± 0.05ab	0.85 ± 0.00d	2.40 ± 0.05bc	0.24 ± 0.02d
SC	MWC	NP	20.22 ± 1.63 cd	5.05 ± 0.22ab	28.43 ± 1.28bc	0.34 ± 0.04c	1.50 ± 0.04c	2.75 ± 0.13a	0.29 ± 0.02bc
SC	MWC	CP	17.92 ± 1.49de	4.77 ± 0.58bc	17.63 ± 1.51d	0.44 ± 0.05ab	1.68 ± 0.15c	2.72 ± 0.11a	0.30 ± 0.03bc
SC	LWC	NP	15.38 ± 1.28ef	4.73 ± 0.48bc	18.73 ± 1.29d	0.27 ± 0.02d	2.72 ± 0.09a	2.57 ± 0.16ab	0.33 ± 0.04ab
SC	LWC	CP	7.60 ± 1.02 g	3.59 ± 0.27de	8.37 ± 0.99gh	0.34 ± 0.03c	1.71 ± 0.02c	2.75 ± 0.04a	0.35 ± 0.11ab
		P:Fw	< 0.0001	< 0.0001	< 0.0001	< 0.0001	< 0.001	0.0004	< 0.0001
		P:Fc	0.0013	< 0.0001	< 0.0001	0.2782	0.0671	0.5350	0.9392
		P:Fs	< 0.0001	< 0.0001	< 0.0001	0.0380	0.0197	0.1746	0.2561
		P:Fw×Fc	0.7955	0.2412	0.0373	0.0623	0.0086	0.8434	0.4706
		P:Fw×Fs	0.6754	0.0885	< 0.0001	0.3968	0.0013	0.3346	0.7508
		P:Fc×Fs	0.0031	0.0569	0.4922	0.0365	< 0.0001	0.0769	0.0810
		P:Fw×Fc×Fs	0.4997	0.0269	0.1861	0.9037	< 0.0001	0.2423	0.73892

Values are mean ± SE. Values followed by different small letters and within parameters are significantly different at the P < 0.05 level according to Tukey’s test. NC, normal cultivar; SC, super cultivar; CK, control watering regime; MWC, mild water stress; LWC, heavy water stress; Fw, water stress effect; Fc, cultivar effect; Fs, soil effect; Fw×Fc, water and cultivar interaction; Fs×Fc, soil and cultivar interaction; Fw×Fs, water and soil interaction; Fw×Fc×Fs, soil, water and cultivar interaction

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ISSN: 1471-2229

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