Initiation Effects of Different Concentrations of Melatonin on Sugar Beet Seeds

doi:10.11924/j.issn.1000-6850.casb2021-1193

Abstract

Abstract:

The study aims to explore the initiation effect of different concentrations of melatonin on the same type of beet seeds, and lay a theoretical foundation for the screening of beet seed coating materials. In this study, STm1619 beet seeds were used as experimental materials, and 9 treatments with 3 concentrations and 3 time gradients were set up. By soaking beet seeds back to dry germination culture, the germination potential, germination rate, germination index and vigor index were measured. The results showed that the germination potential, germination rate, germination index and vigor index of STm1619 beet seeds treated with 50 μmol/L for 8, 12 and 24 h were significantly higher than those of the control. The germination potential, germination rate, germination index and vigor index of STm1619 beet seeds treated with 100 μmol/L for different time were higher than those of the control. The germination potential, germination rate, germination index and vigor index of beet seeds treated with 200 μmol/L for 8, 12 and 24 h were also higher than those of the control. The effects of different concentrations of melatonin on seed germination of STm1619 sugar beet varied with time. Too long or too short processing time will have a certain impact on the initiation effect.

Key words: sugar beet, seed, melatonin, seed initiation, seed coating agent

CLC Number:

S566.3

YANG Ran, XING Wang, LIU Dali, WU Zedong, WANG Maoqian. Initiation Effects of Different Concentrations of Melatonin on Sugar Beet Seeds[J]. Chinese Agricultural Science Bulletin, 2022, 38(27): 19-25.

Figures/Tables 9

References 29

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编号	引发组合	时间/h	编号	引发组合	时间/h	编号	引发组合	时间/h
处理1	50μmol/L褪黑素	8	处理4	100 μmol/L褪黑素	8	处理7	200 μmol/L褪黑素	8
处理2	50μmol/L褪黑素	12	处理5	100 μmol/L褪黑素	12	处理8	200 μmol/L褪黑素	12
处理3	50μmol/L褪黑素	24	处理6	100 μmol/L褪黑素	24	处理9	200 μmol/L褪黑素	24

编号	引发组合	时间/h	编号	引发组合	时间/h	编号	引发组合	时间/h
处理1	50μmol/L褪黑素	8	处理4	100 μmol/L褪黑素	8	处理7	200 μmol/L褪黑素	8
处理2	50μmol/L褪黑素	12	处理5	100 μmol/L褪黑素	12	处理8	200 μmol/L褪黑素	12
处理3	50μmol/L褪黑素	24	处理6	100 μmol/L褪黑素	24	处理9	200 μmol/L褪黑素	24

编号	引发组合	时间/h	5d发芽势/%	7d发芽率/%	发芽指数	活力指数
处理1	50μmol/L褪黑素	8	47.67±1.53	47.67±2.65	18.32±2.35	159.51±24.53
处理2	50μmol/L褪黑素	12	59.33±0.58	60.33±1.53	25.47±6.21	189.38±25.69
处理3	50μmol/L褪黑素	24	47.67±2.52	48.67±2.65	21.57±3.62	142.57±19.23
CK	STm1619	0	17.00±2	19.00±2.51	7.07±1.03	52.79±2.22

编号	引发组合	时间/h	5d发芽势/%	7d发芽率/%	发芽指数	活力指数
处理1	50μmol/L褪黑素	8	47.67±1.53	47.67±2.65	18.32±2.35	159.51±24.53
处理2	50μmol/L褪黑素	12	59.33±0.58	60.33±1.53	25.47±6.21	189.38±25.69
处理3	50μmol/L褪黑素	24	47.67±2.52	48.67±2.65	21.57±3.62	142.57±19.23
CK	STm1619	0	17.00±2	19.00±2.51	7.07±1.03	52.79±2.22

编号	引发组合	时间/h	5d发芽势/%	7d发芽率/%	发芽指数	活力指数
处理4	100μmol/L褪黑素	8	50.67±1.53	47.67±2.65	19.25±2.35	142.14±24.53
处理5	100μmol/L褪黑素	12	54.33±0.58	57.33±1.53	22.54±6.21	178.78±25.69
处理6	100μmol/L褪黑素	24	55.00±2.52	56.00±2.65	24.52±3.62	154.72±19.23
CK	STm1619	0	41.00±2.00	41.00±2.51	13.17±1.03	114.02±2.22