Effects on Seed Germination of Sugar Beet: Sodium Selenite Immersion Under Salt Stress

doi:10.11924/j.issn.1000-6850.casb2023-0278

Abstract

Abstract:

In order to study the effect of different concentrations of sodium selenite on the germination of beet seeds under salt stress, and to provide the basis for the selection of beet seed coating agent, the experiment took "TD805" sugar beet single seed as material, the main treatment was salt stress (100 mmol/L NaCl simulated salt stress), the secondary treatment was seed soaking with sodium selenite, and the germination potential and germination rate were obtained by direct measurement method. The results showed that the seeds of "TD805" beet under salt stress were treated with different concentrations of sodium selenite solution, and the vigor indexes of beet seeds soaked for 18h were better than those soaked for 6 and 12 h, and the effect of soaking for 18 h with 10 mg / L sodium selenite solution was the best. Compared with salt stress control CK₂, the germination potential, germination rate, germination index, vitality index and material efficiency were increased by 21.66%, 22.33%, 131.01%, 240.77% and 38.41%, respectively. The experiment showed that the seeds soaked with 10 mg/L sodium selenite solution for 18h had high vitality level, high nutrient utilization rate and fast conversion of stored substances, which could effectively alleviate the germination of beet seeds under salt stress.

Key words: beetroot seed, salt stress, sodium selenite, seed priming, vitality level

LIU Aijie, ZHANG Huizhong, WANG Maoqian. Effects on Seed Germination of Sugar Beet: Sodium Selenite Immersion Under Salt Stress[J]. Chinese Agricultural Science Bulletin, 2023, 39(35): 20-26.

Figures/Tables 8

References 26

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处理编号	引发组合	处理时间/h	5 d发芽势/%	7 d发芽率/%	发芽指数	活力指数	物质效率/%
CK₁	干种子	0	57.33±2.52a	64.00±5.29a	24.01±1.33e	229.6±14.86fg	48.22±3.32g
CK₂	100 mmol/L	0	36.67±5.86e	42.67±5.86de	16.96±2.56f	156.72±24.18h	41.49±3.54f

处理编号	引发组合	处理时间/h	5 d发芽势/%	7 d发芽率/%	发芽指数	活力指数	物质效率/%
CK₁	干种子	0	57.33±2.52a	64.00±5.29a	24.01±1.33e	229.6±14.86fg	48.22±3.32g
CK₂	100 mmol/L	0	36.67±5.86e	42.67±5.86de	16.96±2.56f	156.72±24.18h	41.49±3.54f

处理编号	引发组合	处理时间/h	5 d发芽势/%	7 d发芽率/%	发芽指数	活力指数	物质效率/%
CK₂	100 mmol/L	0	36.67±5.86e	42.67±5.86de	16.96±2.56g	156.72±24.18g	41.49±3.54h
4	10 mg/L	6	44.67±3.51bcd	49.33±3.21bcd	29.60±0.55cd	339.89±28.14cd	59.81±1.05cde
5	10 mg/L	12	45.67±3.79bc	48.67±4.73bcd	32.81±4.21bc	407.10±46.77b	61.40±0.37cd
6	10 mg/L	18	58.33±3.51a	65.00±2.00a	39.18±1.67a	534.05±50.21a	79.90±1.99a

处理编号	引发组合	处理时间/h	5 d发芽势/%	7 d发芽率/%	发芽指数	活力指数	物质效率/%
CK₂	100 mmol/L	0	36.67±5.86e	42.67±5.86de	16.96±2.56g	156.72±24.18g	41.49±3.54h
4	10 mg/L	6	44.67±3.51bcd	49.33±3.21bcd	29.60±0.55cd	339.89±28.14cd	59.81±1.05cde
5	10 mg/L	12	45.67±3.79bc	48.67±4.73bcd	32.81±4.21bc	407.10±46.77b	61.40±0.37cd
6	10 mg/L	18	58.33±3.51a	65.00±2.00a	39.18±1.67a	534.05±50.21a	79.90±1.99a

处理编号	引发组合	处理时间/h	5 d发芽势/%	7 d发芽率/%	发芽指数	活力指数	物质效率/%
CK₂	100 mmol/L	0	36.67±5.86e	42.67±5.86de	16.96±2.56g	156.72±24.18g	41.49±3.54h
10	30 mg/L	6	35.67±3.06e	40.00±1.00e	24.48±0.95f	283.98±12.09def	58.54±7.55cde
11	30 mg/L	12	37.33±2.52e	42.67±2.52de	28.99±2.39cde	267.39±25.55ef	58.15±1.06cde
12	30 mg/L	18	36.67±3.21e	43.33±5.03cde	26.41±1.87def	269.61±6.99ef	54.81±5.82ef