| 不同Ca2+浓度对蒲公英和橡胶草种子萌发及根系生长的影响 |
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| 引用本文： | 严青青,邢涛,王莉,张龑,高强,徐麟,王永刚.不同Ca2+浓度对蒲公英和橡胶草种子萌发及根系生长的影响[J].新疆农业科学,2022,59(5):1128-1134. |
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| 作者姓名： | 严青青 邢涛 王莉 张龑 高强 徐麟 王永刚 |
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| 作者单位： | 1.新疆农业科学院农作物品种资源研究所,乌鲁木齐 8300912.山东玲珑轮胎股份有限公司,山东招远 265400 |
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| 基金项目： | 国家重点研发计划“黄河三角洲耐盐碱作物提质增效技术集成研究与示范”(2019YFD1002703);北京玲珑蒲公英科技发展有限公司项目“橡胶草栽培装备技术模式研究与原料基地建设”;国家重点研发计划“绿色、水基、高效、低成本蒲公英橡胶制备关键技术和性能研究”(2017YFB0306901);新疆农业科学院自主培育项目“新疆农作物种质资源优异特性挖掘与利用”(nkyzzkj-008) |
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| 摘 要： | 【目的】研究黄蒲蒲公英和科根橡胶草2个品系种子萌发和根系生长对不同Ca2+浓度的响应,分析其种子及根部对Ca2+的响应特征。【方法】以新疆当地黄蒲蒲公英、科根橡胶草为材料,2020年设置室内试验。设0(CK)、0.04、0.08、0.12、0.16 mol/L 5个Ca2+浓度处理。【结果】与CK相比,0.04 mol/L Ca2+处理未显著影响黄蒲蒲公英和科根橡胶草的种子发芽率、发芽势、发芽指数,其余Ca2+处理下的种子萌发参数均随着浓度增加呈降低趋势。根系参数与种子萌发参数表现一致,根系总长度、表面积、体积均随着Ca2+浓度的增加逐渐降低,科根橡胶草的细根长度(直径(d)<0.5 mm)在0.04、0.08 mol/L Ca2+浓度处理下大于黄蒲蒲公英。【结论】黄蒲蒲公英和科根橡胶草在不同的Ca2+浓度处理下的根系生长适应性不同。尤其在0.04、0.08 mol/L Ca2+浓度处理下科根橡胶草细根长度要大于黄蒲蒲公英,发芽率也要大于黄蒲蒲公英。
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| 关 键 词： | 黄蒲蒲公英 科根橡胶草 Ca2+ 根系生长 |
| 收稿时间： | 2021-11-30 |
Effects of Different Ca2+ Concentrations on Seed Germination and Root Growth of Taraxacum mongolicum and Taraxacumkok-saghyz |
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| YAN Qingqing,XING Tao,WANG Li,ZHANG Yan,GAO Qiang,XU Lin,WANG Yonggang.Effects of Different Ca2+ Concentrations on Seed Germination and Root Growth of Taraxacum mongolicum and Taraxacumkok-saghyz[J].Xinjiang Agricultural Sciences,2022,59(5):1128-1134. |
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| Authors: | YAN Qingqing XING Tao WANG Li ZHANG Yan GAO Qiang XU Lin WANG Yonggang |
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| Institution: | 1. Institute of Crop Germplasm Resources, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China2. Linglong Shandong Dandelion Technology& Development Co., Ltd, Zhaoyuan Shandong 265400, China |
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| Abstract: | 【Objective】 To study the response of seed germination and root growth to different concentrations of Ca2+ and elucidate the response characteristics of seed and root to Ca2+.【Method】 In this study, we used theTaraxacum mongolicum strain Huangpu and Taraxacumkok-saghyz strain Kegen in Xinjiang as materials, In 2020, the laboratory experiment was carried out Institute of Crop Germplasm Resources, Xinjiang Academy of Agricultural Sciences. 【Result】 Compared with CK, 0.04 mol/L Ca2+ treatment had no significant effect on the germination rate, germination potential and germination index of Huangpu and Kegen. The germination parameters of other Ca2+ treatments decreased with the increase of concentration. The total length, surface area and volume of roots decreased gradually with the increase of Ca2+ concentration. The fine root length (diameter (d) < 0.5 mm) of Kegen was larger than that of Huangpu under 0.04 and 0.08 mol/L Ca2+ concentrations. 【Conclusion】 The root growth adaptability of Huangpu and Kegen is different under different Ca2+ concentrations. Especially at the concentration of 0.04 and 0.08 mol/L Ca2+, the fine root length of Kegen is longer than that of Huangpu, and the germination rate of Kegen is higher than that of Huangpu. |
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| Keywords: | Taraxacum mongolicum Taraxacumkok-saghyz Ca2+ root growth |
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