生物炭结壳包衣对蒙古冰草萌发期抗旱特性的影响

doi:10.11733/j.issn.1007-0435.2025.03.030

草地学报 ›› 2025, Vol. 33 ›› Issue (3): 960-967.DOI: 10.11733/j.issn.1007-0435.2025.03.030

• 技术研发 • 上一篇

生物炭结壳包衣对蒙古冰草萌发期抗旱特性的影响

李长然, 刘婧禹, 李若鸿, 毛培胜

中国农业大学草业科学与技术学院, 北京 100193

收稿日期:2024-05-09 修回日期:2024-07-15 发布日期:2025-04-07
通讯作者: 毛培胜,E-mail:maops@cau.edu.cn
作者简介:李长然（2001-）,男,汉族,内蒙古兴安盟人,硕士研究生,主要从事草类种子生理与生产研究,E-mail：changran.li@cau.edu.cn
基金资助:
内蒙古自治区种业科技创新重大示范工程“揭榜挂帅”项目（2022JBGS0014）资助

Effects of Biochar Encrusting on Drought Resistance Characteristics of Agropyron Mongolicum during Seed Germination

LI Chang-ran, LIU Jing-yu, LI Ruo-hong, MAO Pei-sheng

College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China

Received:2024-05-09 Revised:2024-07-15 Published:2025-04-07

摘要/Abstract

摘要： 本研究旨在通过生物炭结壳包衣技术提升蒙古冰草（Agropyron mongolicum）种子的抗旱性能,解决我国北方干旱半干旱地区种子出苗率、幼苗成活率低的问题。试验材料为蒙古冰草种子,设置砂床含水量2%为干旱条件,在每20 g蒙古冰草种子中设计添加生物炭1.4 g,2.0 g,4.0 g和6.6 g（分别记为BC_1-15,BC_1-10,BC_1-5和BC_1-3）4种结壳包衣配方,以裸种子和基础结壳包衣为对照。通过对比不同处理的种子出苗特性、幼苗生长和抗氧化酶活性,发现生物炭结壳包衣能显著提高种子的抗旱能力（P<0.05）,其中BC_1-10处理效果最佳,显著提高了出苗率、出苗速度指数、幼苗生长指标及抗氧化酶活性（P<0.05）。盆栽试验也证实了BC_1-10处理能显著提高蒙古冰草种子的出苗率（P<0.05）。因此,生物炭结壳包衣技术应用于蒙古冰草种子,对提高种子出苗率、幼苗成活率具有显著效果,对我国北方干旱半干旱地区的生态修复与荒漠化治理具有重要意义。

关键词: 生物炭, 结壳包衣, 蒙古冰草, 种子萌发, 干旱胁迫

Abstract: The objective of this study was to address the issue of low seed emergence and seedling survival rates in the arid and semi-arid regions of northern China. Specifically, we aimed to enhance the drought resistance of Mongolian wheatgrass （Agropyron mongolicum） seeds using biochar encrusting technology. The experimental materials consisted of Mongolian wheatgrass seeds, biochar, and a sand bed of 2% moisture content simulating drought conditions. Four encrusting formulations were designed, including incorporating 1.4 g, 2.0 g, 4.0 g, and 6.6 g of biochar （recorded as BC_1-15, BC_1-10, BC_1-5 and BC_1-3, respectively） per 20 g of Mongolian wheatgrass seeds, respectively. Naked seeds and a basal encrusting served as controls. By comparing seedling emergence characteristics, seedling growth, and antioxidant enzyme activities across different treatments, we found that biochar encrusting significantly improved （P<0.05） the drought resistance of seeds. Among the treatments, BC_1-10 exhibited the most pronounced effect, which significantly （P<0.05） enhanced seedling emergence rate, seedling emergence rate index, seedling growth index, and antioxidant enzyme activity. Pot experiments further confirmed that the BC_1-10 treatment significantly （P<0.05） increased the germination rate of Mongolian wheatgrass seeds.Therefore, applying biochar encrusting technology to Mongolian wheatgrass seeds significantly enhances seedling emergence and survival rates, which could play a crucial role in ecological restoration and desertification control in the arid and semi-arid regions of northern China.

Key words: Biochar, Encrusting, Agropyron mongolicum, Seed germination, Drought stress

中图分类号:

S543.9

李长然, 刘婧禹, 李若鸿, 毛培胜. 生物炭结壳包衣对蒙古冰草萌发期抗旱特性的影响[J]. 草地学报, 2025, 33(3): 960-967.

LI Chang-ran, LIU Jing-yu, LI Ruo-hong, MAO Pei-sheng. Effects of Biochar Encrusting on Drought Resistance Characteristics of Agropyron Mongolicum during Seed Germination[J]. Acta Agrestia Sinica, 2025, 33(3): 960-967.

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生物炭结壳包衣对蒙古冰草萌发期抗旱特性的影响

Effects of Biochar Encrusting on Drought Resistance Characteristics of Agropyron Mongolicum during Seed Germination

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