Cytokinin Concentrations: Effect on the Germination of Sugarbeet Seeds

doi:10.11924/j.issn.1000-6850.casb2020-0532

Abstract

Abstract:

To determine the priming effect of different concentrations of cytokinin 6-BA on sugarbeet seeds, and to provide a basis for screening sugarbeet seed coating materials, in this study, TD802 sugar beet seeds were used as experimental materials, and 9 treatments with 3 concentrations and 3 time gradients were set up. The germination energy, germination rate, germination index and vigor index of beet seeds were determined by soaking and drying. The results showed that the germination energy, germination rate, germination index and vigor index of sugarbeet seeds treated with 0.1% 6-BA at 8, 12 and 24 h were higher than those of the control. The germination energy, germination rate, germination index and vigor index of sugarbeet seeds treated with 0.5% 6-BA for 8 h and 12 h were higher than those of the control. The germination rate, germination index and vigor index of sugarbeet seeds treated with 1% 6-BA for 12 h were higher than those of the control. Therefore, different concentrations of cytokinin 6-BA have different effects on the germination of sugarbeet seeds with different time, too long or too short treatment time could affect the triggering effect.

Key words: sugarbeet, cytokinin, seed, 6-BA, seed priming, seed coating agent

CLC Number:

S566.3

Liu Xiaoyue, Wang Ronghua, Wang Weicheng, Liu Na, Liu Xiaohan, Liu Zhaoyang, Liu Dali, Wu Zedong, Wang Maoqian. Cytokinin Concentrations: Effect on the Germination of Sugarbeet Seeds[J]. Chinese Agricultural Science Bulletin, 2021, 37(11): 9-14.

Figures/Tables 8

References 28

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处理编号	引发组合	处理时间/h	处理编号	引发组合	处理时间/h	处理编号	引发组合	处理时间/h
处理1	0.1%6-BA	8	处理4	0.5% 6-BA	8	处理7	1%6-BA	8
处理2	0.1%6-BA	12	处理5	0.5%6-BA	12	处理8	1%6-BA	12
处理3	0.1%6-BA	24	处理6	0.5%6-BA	24	处理9	1%6-BA	24

处理编号	引发组合	处理时间/h	处理编号	引发组合	处理时间/h	处理编号	引发组合	处理时间/h
处理1	0.1%6-BA	8	处理4	0.5% 6-BA	8	处理7	1%6-BA	8
处理2	0.1%6-BA	12	处理5	0.5%6-BA	12	处理8	1%6-BA	12
处理3	0.1%6-BA	24	处理6	0.5%6-BA	24	处理9	1%6-BA	24

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
处理1	0.1% 6-BA	8	85±2.65	91.33±2.08	38.15±0.72	230.23±32.22
处理2	0.1% 6-BA	12	90±1	92.33±0.58	43.22±7.34	237.03±12.85
处理3	0.1% 6-BA	24	83.67±1.53	90.33±1.53	32.11±5.23	203.13±24.75
CK	TD802	0	82±2	89.67±2.51	26.75±1.03	189.21±2.22

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
处理1	0.1% 6-BA	8	85±2.65	91.33±2.08	38.15±0.72	230.23±32.22
处理2	0.1% 6-BA	12	90±1	92.33±0.58	43.22±7.34	237.03±12.85
处理3	0.1% 6-BA	24	83.67±1.53	90.33±1.53	32.11±5.23	203.13±24.75
CK	TD802	0	82±2	89.67±2.51	26.75±1.03	189.21±2.22

处理编号	引发组合	处理时间/h	5 d发芽势/%	7d发芽率/%	发芽指数	活力指数
处理4	0.5%6-BA	8	88±1.53	90±2.65	29.67±2.35	201.23±24.53
处理5	0.5%6-BA	12	85.67±0.58	92.33±1.53	33.45±6.21	213.65±25.69
处理6	0.5%6-BA	24	80.33±2.52	90±2.65	25.23±3.62	190.03±19.23
CK	TD802	0	82±2	89.67±2.51	26.75±1.03	189.21±2.22