Comparative Analysis of Photosynthetic and Physiological Characteristics of Red-leafed‘Quanhong’and‘Xuanhong’Poplar Cultivars

doi:10.16420/j.issn.0513-353x.2020-0759

Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (2): 437-447.doi: 10.16420/j.issn.0513-353x.2020-0759

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Comparative Analysis of Photosynthetic and Physiological Characteristics of Red-leafed‘Quanhong’and‘Xuanhong’Poplar Cultivars

CHEN Xinghao¹, LIU Hanqi¹, ZHANG Xinjian², CHENG Xiangjun², YANG Minsheng¹, ZHANG Jun¹^,^*()

¹Hebei Key Laboratory for Tree Genetic Resources and Forest Protection,Forestry College,Hebei Agricultural University,Baoding,Hebei 071000,China
²Baoding Zhongsen Agriculture and Forestry Technology Co.,Ltd,Baoding,Hebei 071000,China

Received:2021-04-20 Revised:2021-09-15 Online:2022-02-25 Published:2022-02-28
Contact: ZHANG Jun E-mail:zhangjunem@126.com

Abstract

Abstract:

One-year-old seedlings of green-leafed Populus deltoides‘Zhonglin 2025’and its red leaf of bud mutation variety‘Quanhong’and‘Xuanhong’were used as experimental materials to determine their phenotypic characters,photosynthesis parameters and chlorophyll fluorescence parameters. The results showed that the plant height,ground diameter,leaf area and leaf number of‘Quanhong’and ‘Xuanhong’were significantly lower than those of‘Zhonglin 2025’,indicating that the growth and development of‘Quanhong’and‘Xuanhong’were significantly inhibited. The anthocyanin content in the leaves of‘Quanhong’and‘Xuanhong’was higher than that of‘Zhonglin 2025’,and the ratio of anthocyanin to chlorophyll content increased significantly. In different months,the net photosynthetic（P_n）,stomatal conductance（G_s）and transpiration rate（T_r）of‘Zhonglin 2025’were higher,and the intercellular CO₂ concentration（C_i）of the three poplar varieties were similar. The non-photochemical quenching coefficient（NPQ）of‘Quanhong’was higher and the actual photosynthetic efficiency of PSⅡ[Y(Ⅱ)]was lower,leading to more energy dissipation,lower actual light energy conversion efficiency and lower photosynthetic capacity of PSⅡ in the photosynthetic system of‘Quanhong’. The values of F_o,F_m and NPQ of‘Quanhong’were the lowest among the three poplar cultivars,while the actual photosynthetic efficiency of PSⅡ[Y(Ⅱ)]was the higher.

Key words: poplar, color-leafed cultivar, pigment, photosynthesis, physiological characteristics

CLC Number:

CHEN Xinghao, LIU Hanqi, ZHANG Xinjian, CHENG Xiangjun, YANG Minsheng, ZHANG Jun. Comparative Analysis of Photosynthetic and Physiological Characteristics of Red-leafed‘Quanhong’and‘Xuanhong’Poplar Cultivars[J]. Acta Horticulturae Sinica, 2022, 49(2): 437-447.

Figures/Tables 10

References 25

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月份	品种	L^*	a^*	b^*	C^*	色光值
Month	Cultivar	L^*	a^*	b^*	C^*	Chromatic light value
5	中林2025 Zhonglin 2025	51.17 ± 0.77 a	-4.15 ± 0.34 c	16.31 ± 0.91 a	16.84 ± 0.86 a	-2 731.51 ± 266.51 b
	全红 Quanhong	41.56 ± 0.02 c	2.76 ± 0.21 b	1.73 ± 0.08 c	3.26 ± 0.22 b	438.50 ± 63.25 b
	炫红 Xuanhong	46.67 ± 0.50 b	12.69 ± 1.69 a	9.59 ± 0.92 b	14.74 ± 1.90 a	8 713.69 ± 2 305.47 a
7	中林2025 Zhonglin 2025	50.16 ± 1.09 a	-3.26 ± 0.72 c	12.42 ± 1.74 a	12.87 ± 1.80 a	-1 730.42 ± 578.51 b
	全红 Quanhong	42.88 ± 0.38 c	2.13 ± 0.11 b	2.54 ± 0.29 c	3.32 ± 0.27 b	332.22 ± 39.17 b
	炫红 Xuanhong	46.35 ± 0.60 b	14.94 ± 0.79 a	7.49 ± 0.71 b	16.71 ± 1.04 a	10 989.44 ± 949.88 a
9	中林2025 Zhonglin 2025	49.14 ± 0.45 a	-2.83 ± 0.70 c	8.99 ± 0.57 a	9.45 ± 0.75 b	-1 131.95 ± 366.38 c
	全红 Quanhong	28.26 ± 0.43 c	2.10 ± 0.63 b	2.35 ± 0.08 c	3.12 ± 0.34 c	302.98 ± 176.98 b
	炫红 Xuanhong	46.72 ± 0.67 b	10.87 ± 0.07 a	6.93 ± 0.38 b	12.90 ± 0.19 a	6 000.67 ± 49.86 a

月份	品种	L^*	a^*	b^*	C^*	色光值
Month	Cultivar	L^*	a^*	b^*	C^*	Chromatic light value
5	中林2025 Zhonglin 2025	51.17 ± 0.77 a	-4.15 ± 0.34 c	16.31 ± 0.91 a	16.84 ± 0.86 a	-2 731.51 ± 266.51 b
	全红 Quanhong	41.56 ± 0.02 c	2.76 ± 0.21 b	1.73 ± 0.08 c	3.26 ± 0.22 b	438.50 ± 63.25 b
	炫红 Xuanhong	46.67 ± 0.50 b	12.69 ± 1.69 a	9.59 ± 0.92 b	14.74 ± 1.90 a	8 713.69 ± 2 305.47 a
7	中林2025 Zhonglin 2025	50.16 ± 1.09 a	-3.26 ± 0.72 c	12.42 ± 1.74 a	12.87 ± 1.80 a	-1 730.42 ± 578.51 b
	全红 Quanhong	42.88 ± 0.38 c	2.13 ± 0.11 b	2.54 ± 0.29 c	3.32 ± 0.27 b	332.22 ± 39.17 b
	炫红 Xuanhong	46.35 ± 0.60 b	14.94 ± 0.79 a	7.49 ± 0.71 b	16.71 ± 1.04 a	10 989.44 ± 949.88 a
9	中林2025 Zhonglin 2025	49.14 ± 0.45 a	-2.83 ± 0.70 c	8.99 ± 0.57 a	9.45 ± 0.75 b	-1 131.95 ± 366.38 c
	全红 Quanhong	28.26 ± 0.43 c	2.10 ± 0.63 b	2.35 ± 0.08 c	3.12 ± 0.34 c	302.98 ± 176.98 b
	炫红 Xuanhong	46.72 ± 0.67 b	10.87 ± 0.07 a	6.93 ± 0.38 b	12.90 ± 0.19 a	6 000.67 ± 49.86 a

月份	品种	P_n/（μmol · m^-2· s^-1）	G_s/（mol · m^-2· s^-1）	T_r/（mmol · m^-2 · s^-1）	C_i/（μmol · mol^-1）
Month	Cultivar	P_n/（μmol · m^-2· s^-1）	G_s/（mol · m^-2· s^-1）	T_r/（mmol · m^-2 · s^-1）	C_i/（μmol · mol^-1）
5	中林2025 Zhonglin 2025	16.61 ± 2.00 a	0.27 ± 0.04 a	8.31 ± 1.28 a	257.79 ± 13.72 a
	全红 Quanhong	9.26 ± 1.59 b	0.15 ± 0.02 b	5.73 ± 0.76 ab	268.02 ± 15.90 a
	炫红 Xuanhong	6.53 ± 1.04 b	0.11 ± 0.02 b	4.44 ± 0.71 b	276.07 ± 13.37 a
7	中林2025 Zhonglin 2025	23.88 ± 3.64 a	0.61 ± 0.11 a	11.57 ± 2.70 a	297.19 ± 7.24 b
	全红 Quanhong	10.75 ± 1.53 b	0.43 ± 0.08 b	9.21 ± 2.43 a	332.46 ± 9.51 a
	炫红 Xuanhong	7.31 ± 1.120 b	0.28 ± 0.05 b	7.84 ± 2.25 a	333.97 ± 8.36 a
9	中林2025 Zhonglin 2025	15.09 ± 3.40 a	0.29 ± 0.06 a	12.54 ± 2.30 a	352.71 ± 36.56 a
	全红 Quanhong	8.65 ± 2.03 b	0.13 ± 0.02 b	10.15 ± 2.18 a	353.40 ± 34.42 a
	炫红 Xuanhong	6.90 ± 1.62 b	0.13 ± 0.02 b	9.12 ± 1.95 a	353.69 ± 37.77 a

月份	品种	P_n/（μmol · m^-2· s^-1）	G_s/（mol · m^-2· s^-1）	T_r/（mmol · m^-2 · s^-1）	C_i/（μmol · mol^-1）
Month	Cultivar	P_n/（μmol · m^-2· s^-1）	G_s/（mol · m^-2· s^-1）	T_r/（mmol · m^-2 · s^-1）	C_i/（μmol · mol^-1）
5	中林2025 Zhonglin 2025	16.61 ± 2.00 a	0.27 ± 0.04 a	8.31 ± 1.28 a	257.79 ± 13.72 a
	全红 Quanhong	9.26 ± 1.59 b	0.15 ± 0.02 b	5.73 ± 0.76 ab	268.02 ± 15.90 a
	炫红 Xuanhong	6.53 ± 1.04 b	0.11 ± 0.02 b	4.44 ± 0.71 b	276.07 ± 13.37 a
7	中林2025 Zhonglin 2025	23.88 ± 3.64 a	0.61 ± 0.11 a	11.57 ± 2.70 a	297.19 ± 7.24 b
	全红 Quanhong	10.75 ± 1.53 b	0.43 ± 0.08 b	9.21 ± 2.43 a	332.46 ± 9.51 a
	炫红 Xuanhong	7.31 ± 1.120 b	0.28 ± 0.05 b	7.84 ± 2.25 a	333.97 ± 8.36 a
9	中林2025 Zhonglin 2025	15.09 ± 3.40 a	0.29 ± 0.06 a	12.54 ± 2.30 a	352.71 ± 36.56 a
	全红 Quanhong	8.65 ± 2.03 b	0.13 ± 0.02 b	10.15 ± 2.18 a	353.40 ± 34.42 a
	炫红 Xuanhong	6.90 ± 1.62 b	0.13 ± 0.02 b	9.12 ± 1.95 a	353.69 ± 37.77 a

因子	中林2025 Zhonglin 2025			全红 Quanhong			炫红 Xuanhong
Factor	G_s	T_r	C_i	G_s	T_r	C_i	G_s	T_r	C_i
P_n	0.893^*	0.828^*	-0.513^*	0.585^*	0.571^*	-0.515^*	0.562^*	0.534^*	-0.131
G_s	1	0.811^*	-0.239	1	0.868^*	-0.057	1	0.862^*	0.211
T_r		1	-0.529^*		1	-0.358		1	-0.091
C_i			1			1			1

Comparative Analysis of Photosynthetic and Physiological Characteristics of Red-leafed‘Quanhong’and‘Xuanhong’Poplar Cultivars

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