Effect of Water Priming on the Germination and Physiological Characteristics of Sugar Beet Seeds

doi:10.11924/j.issn.1000-6850.casb2021-1110

Abstract

Abstract:

In order to improve the germination effect of sugar beet seeds by water priming technology, beet seed TD802 was used as the research material in this study. The distilled water was used as the initiator, and the germination potential, germination rate, germination index, vigor index and critical threshold of sugar beet seeds were measured by germination test, and the initiation method that was conducive to the rapid germination of sugar beet seeds was screened and physiological indicators were determined. The results showed that treatment 9 had the best germination rate (91%) and germination potential (90.67%), treatment 5 had the best germination index (41.89) and critical threshold (21.39) among all the combination treatments, and treatment 6 had the best vigor index (447.4). Treatment 3 and treatment 7 had relative high conductivity and the minimum damage to seeds. Treatment 6 had the lowest malondialdehyde content and had a stronger response to adverse conditions. Treatment 8 had the strongest antioxidant enzyme activity and could eliminate the peroxidation damage caused by adversity stress. Water priming had a promoting effect on sugar beet seeds with different temperature and pre-soaking time. Treatment 1 had the most stable priming effect, which could enhance seed vigor and improve seed stress resistance.

Key words: sugar beet, water priming, temperature, pre-soaking time, distilled water

CLC Number:

S566.3

LIU Zhaoyang, HU Huabing, WANG Ronghua, LIU Naixin, WANG Maoqian. Effect of Water Priming on the Germination and Physiological Characteristics of Sugar Beet Seeds[J]. Chinese Agricultural Science Bulletin, 2022, 38(16): 6-12.

Figures/Tables 10

References 25

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处理编号	预浸种时间/min	处理温度/℃	处理编号	预浸种时间/min	处理温度/℃	处理编号	预浸种时间/min	处理温度/℃
1	10	10	4	10	20	7	10	30
2	20	10	5	20	20	8	20	30
3	30	10	6	30	20	9	30	30

处理编号	预浸种时间/min	处理温度/℃	处理编号	预浸种时间/min	处理温度/℃	处理编号	预浸种时间/min	处理温度/℃
1	10	10	4	10	20	7	10	30
2	20	10	5	20	20	8	20	30
3	30	10	6	30	20	9	30	30

处理编号	预浸种时间/min	处理温度/℃	发芽率/%	发芽势/%	发芽指数	活力指数	临界阈值
CK	0	0	85±1	83±2.65	26.44±0.71	164.06±1.75	13.64±0.35
1	10	10	88.67±2.52	88±3.61	32±1.69	276.63±39.97	16.44±0.84
2	20	10	88.33±5.13	85.67±3.79	32.9±2.32	263±24.66	16.89±1.16
3	30	10	90±6.08	88.67±7.23	34.43±2.15	245.18±34.99	17.66±1.1

处理编号	预浸种时间/min	处理温度/℃	发芽率/%	发芽势/%	发芽指数	活力指数	临界阈值
CK	0	0	85±1	83±2.65	26.44±0.71	164.06±1.75	13.64±0.35
1	10	10	88.67±2.52	88±3.61	32±1.69	276.63±39.97	16.44±0.84
2	20	10	88.33±5.13	85.67±3.79	32.9±2.32	263±24.66	16.89±1.16
3	30	10	90±6.08	88.67±7.23	34.43±2.15	245.18±34.99	17.66±1.1

处理编号	预浸种时间/min	处理温度/℃	发芽率/%	发芽势/%	发芽指数	活力指数	临界阈值
CK	0	0	85±1	83±2.65	26.44±0.71	164.06±1.75	13.64±0.35
4	10	20	86.33±3.79	85±4.36	38.78±1.61	408.78±16.35	19.82±0.82
5	20	20	89.67±2.08	89.33±2.31	41.89±0.53	400.21±12.7	21.39±0.27
6	30	20	86.33±3.21	86±3.46	39.71±1.37	447.4±31.05	20.29±0.7