Effects of Acid-base Pretreatment on Seed Germination Characteristics of Three Nitraria L.

doi:10.11924/j.issn.1000-6850.casb2024-0283

Abstract

Abstract:

The aim of this study is to investigate the germination characteristics of seeds from different species of plants in the Nitraria L., in order to improve the germination rate of three species of Nitraria L., and provide theoretical basis for the artificial breeding of Nitraria L. plants and the breaking of seed dormancy. Using Nitraria roborowskii Kom., Nitraria sibirica Pall., and Nitraria sphaerocarpa Maxim.as experimental materials, the seeds of three species of Nitraria L. plants were pretreated with concentrated sulfuric acid (H₂SO₄) and sodium hydroxide (NaOH) solutions, respectively. The results showed that the germination rate of N. sibirica seeds pretreated with 0.3 mol/L NaOH solution was the highest at 81.33%, while the germination rate of N. roborowskii seeds pretreated with 98% H₂SO₄ solution was the highest at 81.33%. Conversely, N. sphaerocarpa seeds without any pretreatment had the best effect, with a germination rate of 62.67%. This provides a reliable reference for breaking dormancy in Nitraria L. plant seeds. Based on the comprehensive experimental results, selecting appropriate pretreatment methods can effectively improve the germination rate of seeds in the Nitraria L.. Therefore, in the artificial breeding and seed dormancy breaking process of plants in the Nitraria L., appropriate treatment methods should be selected according to the needs of different species to achieve the best germination effect.

Key words: Nitraria sibirica pall., Nitraria roborowskii Kom., Nitraria sphaerocarpa Maxim., acid-base pretreatment, germination percentage, germination potential, germination index

WANG Zhi, WANG Wenshu, TAN Tianyi, LIU Xuejuan, LI Huiying, LIU Shiying. Effects of Acid-base Pretreatment on Seed Germination Characteristics of Three Nitraria L.[J]. Chinese Agricultural Science Bulletin, 2025, 41(2): 36-42.

Figures/Tables 7

References 33

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处理	小果白刺		大果白刺		泡泡刺
处理	发芽率/%	发芽势/%	发芽率/%	发芽势/%	发芽率/%	发芽势/%
CK	66.00 ± 5.29 a	53.33 ± 1.15 a	56.67 ± 4.16 c	48.00 ± 2.00 c	62.67 ± 5.03 a	52.67 ± 6.11 a
5 min	70.33 ± 4.73 a	59.33 ± 4.16 a	77.67 ± 1.53 ab	62.67 ± 2.31b	18.67 ± 7.02 b	10.67 ± 5.03 b
10 min	33.33 ± 11.72 b	20.00 ± 12.17 b	81.33 ± 3.06 a	72.00 ± 2.00 a	0.00 ± 0.00 c	0.00 ± 0.00 c
15 min	12.00 ± 4.00 c	6.00 ± 2.00 c	72.33 ± 4.04 b	59.67 ± 1.53 b	0.67 ± 1.15 c	0.67 ± 1.15 c
20 min	8.67 ± 3.06 c	4.67 ± 1.15 c	51.67 ± 3.79 c	43.33 ± 4.16 c	0.00 ± 0.00 c	0.00 ± 0.00 c

处理	小果白刺		大果白刺		泡泡刺
处理	发芽率/%	发芽势/%	发芽率/%	发芽势/%	发芽率/%	发芽势/%
CK	66.00 ± 5.29 a	53.33 ± 1.15 a	56.67 ± 4.16 c	48.00 ± 2.00 c	62.67 ± 5.03 a	52.67 ± 6.11 a
5 min	70.33 ± 4.73 a	59.33 ± 4.16 a	77.67 ± 1.53 ab	62.67 ± 2.31b	18.67 ± 7.02 b	10.67 ± 5.03 b
10 min	33.33 ± 11.72 b	20.00 ± 12.17 b	81.33 ± 3.06 a	72.00 ± 2.00 a	0.00 ± 0.00 c	0.00 ± 0.00 c
15 min	12.00 ± 4.00 c	6.00 ± 2.00 c	72.33 ± 4.04 b	59.67 ± 1.53 b	0.67 ± 1.15 c	0.67 ± 1.15 c
20 min	8.67 ± 3.06 c	4.67 ± 1.15 c	51.67 ± 3.79 c	43.33 ± 4.16 c	0.00 ± 0.00 c	0.00 ± 0.00 c

处理	小果白刺		大果白刺		泡泡刺
处理	发芽率/%	发芽势/%	发芽率/%	发芽势/%	发芽率/%	发芽势/%
CK	62.33 ± 0.58 b	43.67 ± 1.53 b	51.67 ± 4.04 b	40.33 ± 2.08 b	66.00 ± 6.00 a	53.33 ± 6.11 a
0.3mol/L	81.33 ± 2.31 a	60.33 ± 5.13 a	62.67 ± 2.08 a	46.00 ± 1.00 a	21.33 ± 6.11b	16.67 ± 6.43 b
0.5mol/L	53.33 ± 2.08 c	32.67 ± 2.08 c	25.33 ± 6.11 c	14.00 ± 5.29 c	8.67 ± 5.03 c	6.00 ± 3.46 c
0.7mol/L	33.33 ± 1.53 d	24.00 ± 3.46 d	16.00 ± 6.00 d	8.67 ± 1.15 d	4.00 ± 4.00 c	2.67 ± 2.31 c
1 mol/L	0.67 ± 1.15 e	0.67 ± 1.15 e	4.00 ± 4.00 e	2.00 ± 2.00 e	0.00 ± 0.00 c	0.00 ± 0.00 c

处理	小果白刺		大果白刺		泡泡刺
处理	发芽率/%	发芽势/%	发芽率/%	发芽势/%	发芽率/%	发芽势/%
CK	62.33 ± 0.58 b	43.67 ± 1.53 b	51.67 ± 4.04 b	40.33 ± 2.08 b	66.00 ± 6.00 a	53.33 ± 6.11 a
0.3mol/L	81.33 ± 2.31 a	60.33 ± 5.13 a	62.67 ± 2.08 a	46.00 ± 1.00 a	21.33 ± 6.11b	16.67 ± 6.43 b
0.5mol/L	53.33 ± 2.08 c	32.67 ± 2.08 c	25.33 ± 6.11 c	14.00 ± 5.29 c	8.67 ± 5.03 c	6.00 ± 3.46 c
0.7mol/L	33.33 ± 1.53 d	24.00 ± 3.46 d	16.00 ± 6.00 d	8.67 ± 1.15 d	4.00 ± 4.00 c	2.67 ± 2.31 c
1 mol/L	0.67 ± 1.15 e	0.67 ± 1.15 e	4.00 ± 4.00 e	2.00 ± 2.00 e	0.00 ± 0.00 c	0.00 ± 0.00 c