Effects of different sulfate soaking agents on seed germination and cadmium uptake of rice seedlings

doi:10.3969/j.issn.1004-1524.2021.12.01

Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (12): 2213-2223.DOI: 10.3969/j.issn.1004-1524.2021.12.01

• Crop Science • Previous Articles Next Articles

Effects of different sulfate soaking agents on seed germination and cadmium uptake of rice seedlings

DONG Aiqin¹^,²(), LI Jianguo¹, YANG Tao¹^,², CHEN Yuanhua¹^,², XU Changxu¹^,², WAN Hui³, PENG Zhiping¹, XIE Jie¹^,²^,^*()

1. Key Laboratory of Crop Ecophysiology and Farming System for the Middle and Lower Reaches of the Yangtze River,Ministry of Agriculture and Rural Affairs, National Engineering and Technology Research Center for Red Soil Improvement, Institute of Soil and Fertilizer & Environmental and Resources, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China
2. Jinggangshan Institute of Red Soil, Ji’an 343016, China
3. Nanchang Agricultural Products Quality and Safety Testing Center, Nanchang 330009, China

Received:2021-05-08 Online:2021-12-25 Published:2022-01-10
Contact: XIE Jie

Abstract

Abstract:

To study the effects of sulfate soaking on seed germination and cadmium (Cd) uptake of rice seedlings, rice variety Wufengyou 286 was selected as the test material, and FeSO₄, ZnSO₄, MnSO₄ solutions with various concentrations were used as seed soaking agents in the sprouting and hydroponic experiment. The radicle length, plumule length, germination rate and contents of Cd, Mg, B, P, K in rice seedlings were determined. It was shown that the seed soaking with FeSO₄ or MnSO₄ solution could increase the germination rate of rice, promote the growth of radicle and plumule, and effectively reduce Cd content of rice seedlings. However, the seed soaking with ZnSO₄ solution inhibited the growth of radicle and plumule, and increased Cd content of rice seedlings. The seed soaking with FeSO₄ or MnSO₄solution had no obvious inhibition on the uptake of Mg, B, P, K, and the seed soaking with FeSO₄ solution even could promote B uptake of rice seedlings. In general, the seed soaking with FeSO₄or MnSO₄ solution had application potential for reducing Cd uptake of rice, and was worthy for further research.

Key words: seed soaking agent, ion channel, germination rate, cadmium, nutrient uptake

CLC Number:

S511.041

DONG Aiqin, LI Jianguo, YANG Tao, CHEN Yuanhua, XU Changxu, WAN Hui, PENG Zhiping, XIE Jie. Effects of different sulfate soaking agents on seed germination and cadmium uptake of rice seedlings[J]. Acta Agriculturae Zhejiangensis, 2021, 33(12): 2213-2223.

Figures/Tables 5

References 53

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浸种剂 Soaking agent	浓度 Concentration/(mol·L^-1)	胚根长 Radicle length/cm	胚芽长 Plumule length/cm	根芽比 Radicle-plumule ratio
FeSO₄	0	0.88±0.08 e	0.47±0.10 c	1.94±0.30 bcd
	0.05	1.93±0.12 cd	1.17±0.20 ab	1.70±0.35 cde
	0.10	2.00±0.65 cd	1.30±0.48 ab	1.55±0.07 de
	0.15	1.87±0.25 d	1.12±0.19 b	1.69±0.26 cde
	0.20	2.28±0.25 cd	1.53±0.03 a	1.49±0.14 e
	0.25	2.38±0.18 bc	1.30±0.10 ab	1.84±0.12 bcde
	0.30	2.83±0.18 ab	1.40±0.05 ab	2.02±0.10 bc
	0.35	2.87±0.16 ab	1.35±0.15 ab	2.13±0.14 ab
	0.40	3.30±0.09 a	1.36±0.05 ab	2.44±0.16 a
ZnSO₄	0	0.78±0.08 a	0.43±0.07 c	1.81±0.17 a
	0.05	0.51±0.07 b	0.72±0.07 a	0.71±0.09 b
	0.10	0.41±0.08 b	0.68±0.21 ab	0.65±0.25 bc
	0.15	0.29±0.07 c	0.64±0.16 abc	0.45±0.02 cd
	0.20	0.21±0.11 c	0.49±0.04 bc	0.42±0.18 d
	0.25	0.21±0.02 c	0.53±0.06 abc	0.40±0.01 d
	0.30	0.24±0.05 c	0.56±0.08 abc	0.44±0.08 cd
	0.35	0.22±0.04 c	0.61±0.02 abc	0.32±0.05 d
	0.40	0.23±0.03 c	0.54±0.14 abc	0.45±0.17 cd
MnSO₄	0	0.83±0.17 c	0.43±0.09 c	1.93±0.14 a
	0.05	1.16±0.41 bc	0.59±0.17 c	1.94±0.13 a
	0.10	2.43±0.20 a	1.48±0.10 a	1.65±0.21 abc
	0.15	2.02±0.35 a	1.43±0.28 a	1.41±0.03 cd
	0.20	2.23±0.63 a	1.45±0.09 a	1.53±0.36 bcd
	0.25	2.07±0.46 a	1.33±0.19 ab	1.55±0.30 bcd
	0.30	1.90±0.35 a	1.32±0.30 ab	1.46±0.13 cd
	0.35	2.17±0.53 a	1.73±0.35 a	1.24±0.05 d
	0.40	1.80±0.33 ab	0.97±0.21 b	1.87±0.08 ab

浸种剂 Soaking agent	浓度 Concentration/(mol·L^-1)	胚根长 Radicle length/cm	胚芽长 Plumule length/cm	根芽比 Radicle-plumule ratio
FeSO₄	0	0.88±0.08 e	0.47±0.10 c	1.94±0.30 bcd
	0.05	1.93±0.12 cd	1.17±0.20 ab	1.70±0.35 cde
	0.10	2.00±0.65 cd	1.30±0.48 ab	1.55±0.07 de
	0.15	1.87±0.25 d	1.12±0.19 b	1.69±0.26 cde
	0.20	2.28±0.25 cd	1.53±0.03 a	1.49±0.14 e
	0.25	2.38±0.18 bc	1.30±0.10 ab	1.84±0.12 bcde
	0.30	2.83±0.18 ab	1.40±0.05 ab	2.02±0.10 bc
	0.35	2.87±0.16 ab	1.35±0.15 ab	2.13±0.14 ab
	0.40	3.30±0.09 a	1.36±0.05 ab	2.44±0.16 a
ZnSO₄	0	0.78±0.08 a	0.43±0.07 c	1.81±0.17 a
	0.05	0.51±0.07 b	0.72±0.07 a	0.71±0.09 b
	0.10	0.41±0.08 b	0.68±0.21 ab	0.65±0.25 bc
	0.15	0.29±0.07 c	0.64±0.16 abc	0.45±0.02 cd
	0.20	0.21±0.11 c	0.49±0.04 bc	0.42±0.18 d
	0.25	0.21±0.02 c	0.53±0.06 abc	0.40±0.01 d
	0.30	0.24±0.05 c	0.56±0.08 abc	0.44±0.08 cd
	0.35	0.22±0.04 c	0.61±0.02 abc	0.32±0.05 d
	0.40	0.23±0.03 c	0.54±0.14 abc	0.45±0.17 cd
MnSO₄	0	0.83±0.17 c	0.43±0.09 c	1.93±0.14 a
	0.05	1.16±0.41 bc	0.59±0.17 c	1.94±0.13 a
	0.10	2.43±0.20 a	1.48±0.10 a	1.65±0.21 abc
	0.15	2.02±0.35 a	1.43±0.28 a	1.41±0.03 cd
	0.20	2.23±0.63 a	1.45±0.09 a	1.53±0.36 bcd
	0.25	2.07±0.46 a	1.33±0.19 ab	1.55±0.30 bcd
	0.30	1.90±0.35 a	1.32±0.30 ab	1.46±0.13 cd
	0.35	2.17±0.53 a	1.73±0.35 a	1.24±0.05 d
	0.40	1.80±0.33 ab	0.97±0.21 b	1.87±0.08 ab

浸种剂 Soaking agent	浓度 Concentration/(mol·L^-1)	Mg/(g·kg^-1)	B/(mg·kg^-1)	P/(g·kg^-1)	K/(g·kg^-1)
FeSO₄	0	3.53±0.31 bc	40.8±3.6 d	6.08±0.31 ab	23.5±0.8 bc
	0.05	3.80±0.25 ab	47.4±6.1 c	6.20±0.18 ab	25.9±1.3 ab
	0.10	3.35±0.14 c	49.8±4.4 bc	5.67±0.58 b	25.6±1.8 abc
	0.15	3.67±0.14 abc	47.8±2.4 bc	5.89±0.02 ab	25.5±0.8 abc
	0.20	3.94±0.15 a	49.2±4.2 bc	5.80±0.19 ab	25.1±1.7 abc
	0.25	3.38±0.09 c	48.2±1.9 bc	5.87±0.63 ab	22.9±1.5 c
	0.30	3.52±0.28 bc	51.1±4.0 bc	6.04±0.24 ab	24.2±2.2 abc
	0.35	3.45±0.20 bc	55.2±4.6 b	5.91±0.24 ab	23.0±1.5 c
	0.40	3.55±0.17 bc	65.1±2.7 a	6.46±0.17 a	26.5±0.8 a
ZnSO₄	0	3.23±0.22 a	38.6±3.3 a	6.39±0.21 b	24.0±1.4 ab
	0.05	3.13±0.07 ab	37.3±0.8 ab	7.04±0.43 ab	25.6±1.4 a
	0.10	2.92±0.07 bc	32.8±1.2 cd	7.03±0.14 ab	24.1±0.3 ab
	0.15	2.85±0.06 c	33.2±2.4 cd	7.05±0.32 ab	22.4±1.2 b
	0.20	2.96±0.05 bc	33.9±1.0 bcd	6.94±0.19 ab	24.4±1.2 ab
	0.25	2.94±0.09 bc	31.6±0.4 d	6.86±0.07 ab	25.6±0.5 a
	0.30	2.95±0.14 bc	31.7±2.0 d	6.84±0.75 ab	25.0±2.0 a
	0.35	3.02±0.15 abc	36.1±1.5 abc	7.40±0.25 a	26.2±1.9 a
	0.40	3.02±0.19 abc	35.4±3.4 abcd	7.12±0.37 a	25.5±1.4 a
MnSO₄	0	3.16±0.13 bc	42.0±6.6 ab	6.47±0.34 c	29.1±0.7 ab
	0.05	3.02±0.05 c	42.9±4.1 ab	6.52±0.02 bc	27.3±2.2 bc
	0.10	3.02±0.12 c	37.0±1.3 b	6.67±0.15 abc	29.2±1.5 ab
	0.15	3.10±0.25 c	46.2±2.6 a	6.77±0.20 abc	31.6±0.5 a
	0.20	3.02±0.10 c	43.3±2.7 ab	6.58±0.24 bc	26.6±1.2 b
	0.25	3.36±0.11 ab	45.9±4.3 a	6.72±0.20 abc	31.0±2.3 a
	0.30	3.52±0.08 a	48.4±1.5 a	6.76±0.18 abc	26.8±0.7 b
	0.35	3.40±0.08 ab	43.7±2.5 a	7.00±0.24 a	27.7±0.9 b
	0.40	3.05±0.11 c	44.7±1.8 a	6.88±0.10 ab	25.5±0.8 b

浸种剂 Soaking agent	浓度 Concentration/(mol·L^-1)	Mg/(g·kg^-1)	B/(mg·kg^-1)	P/(g·kg^-1)	K/(g·kg^-1)
FeSO₄	0	3.53±0.31 bc	40.8±3.6 d	6.08±0.31 ab	23.5±0.8 bc
	0.05	3.80±0.25 ab	47.4±6.1 c	6.20±0.18 ab	25.9±1.3 ab
	0.10	3.35±0.14 c	49.8±4.4 bc	5.67±0.58 b	25.6±1.8 abc
	0.15	3.67±0.14 abc	47.8±2.4 bc	5.89±0.02 ab	25.5±0.8 abc
	0.20	3.94±0.15 a	49.2±4.2 bc	5.80±0.19 ab	25.1±1.7 abc
	0.25	3.38±0.09 c	48.2±1.9 bc	5.87±0.63 ab	22.9±1.5 c
	0.30	3.52±0.28 bc	51.1±4.0 bc	6.04±0.24 ab	24.2±2.2 abc
	0.35	3.45±0.20 bc	55.2±4.6 b	5.91±0.24 ab	23.0±1.5 c
	0.40	3.55±0.17 bc	65.1±2.7 a	6.46±0.17 a	26.5±0.8 a
ZnSO₄	0	3.23±0.22 a	38.6±3.3 a	6.39±0.21 b	24.0±1.4 ab
	0.05	3.13±0.07 ab	37.3±0.8 ab	7.04±0.43 ab	25.6±1.4 a
	0.10	2.92±0.07 bc	32.8±1.2 cd	7.03±0.14 ab	24.1±0.3 ab
	0.15	2.85±0.06 c	33.2±2.4 cd	7.05±0.32 ab	22.4±1.2 b
	0.20	2.96±0.05 bc	33.9±1.0 bcd	6.94±0.19 ab	24.4±1.2 ab
	0.25	2.94±0.09 bc	31.6±0.4 d	6.86±0.07 ab	25.6±0.5 a
	0.30	2.95±0.14 bc	31.7±2.0 d	6.84±0.75 ab	25.0±2.0 a
	0.35	3.02±0.15 abc	36.1±1.5 abc	7.40±0.25 a	26.2±1.9 a
	0.40	3.02±0.19 abc	35.4±3.4 abcd	7.12±0.37 a	25.5±1.4 a
MnSO₄	0	3.16±0.13 bc	42.0±6.6 ab	6.47±0.34 c	29.1±0.7 ab
	0.05	3.02±0.05 c	42.9±4.1 ab	6.52±0.02 bc	27.3±2.2 bc
	0.10	3.02±0.12 c	37.0±1.3 b	6.67±0.15 abc	29.2±1.5 ab
	0.15	3.10±0.25 c	46.2±2.6 a	6.77±0.20 abc	31.6±0.5 a
	0.20	3.02±0.10 c	43.3±2.7 ab	6.58±0.24 bc	26.6±1.2 b
	0.25	3.36±0.11 ab	45.9±4.3 a	6.72±0.20 abc	31.0±2.3 a
	0.30	3.52±0.08 a	48.4±1.5 a	6.76±0.18 abc	26.8±0.7 b
	0.35	3.40±0.08 ab	43.7±2.5 a	7.00±0.24 a	27.7±0.9 b
	0.40	3.05±0.11 c	44.7±1.8 a	6.88±0.10 ab	25.5±0.8 b

Effects of different sulfate soaking agents on seed germination and cadmium uptake of rice seedlings

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