| 富氢水对干旱胁迫下大麦种子萌发及幼苗生物量分配的影响 |
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| 引用本文： | 宋瑞娇,冯彩军,齐军仓.富氢水对干旱胁迫下大麦种子萌发及幼苗生物量分配的影响[J].作物杂志,2021,37(4):206-69. |
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| 作者姓名： | 宋瑞娇 冯彩军 齐军仓 |
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| 作者单位： | 石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,832003,新疆石河子 |
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| 基金项目： | 现代农业产业技术体系建设专项(CARS-05-22B) |
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| 摘 要： | 为探讨富氢水对干旱胁迫下大麦种子萌发期抗旱性与幼苗生物量分配的影响,以大麦品种“新啤6号”为试材,采用20%聚乙二醇（PEG）-6000模拟干旱胁迫,比较不同浓度富氢水浸种处理后大麦种子的发芽率和幼苗根冠比等16个指标的差异。结果表明,适宜浓度的富氢水处理能显著提高干旱胁迫下大麦种子的发芽率、干物质转移量、转移率及转化效率,并减少呼吸消耗干物质量,还可以降低干旱胁迫下大麦幼苗根冠比,增加幼苗根和芽的干重,促进幼苗可溶性糖、可溶性蛋白及叶绿素累积。由此可知,一定浓度的富氢水能通过调控种子干物质转运的途径提升干旱胁迫下大麦种子的萌发率,并可通过调节可溶性糖、可溶性蛋白和叶绿素含量降低干旱胁迫对大麦幼苗根和芽生物量分配的不利影响。
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| 关 键 词： | 富氢水 干旱胁迫 大麦 萌发 |
| 收稿时间： | 2020-08-14 |
Effects of Hydrogen-Rich Water on Barley Seed Germination and Barley Seedling Biomass Distribution under Drought Stress |
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| Song Ruijiao,Feng Caijun,Qi Juncang.Effects of Hydrogen-Rich Water on Barley Seed Germination and Barley Seedling Biomass Distribution under Drought Stress[J].Crops,2021,37(4):206-69. |
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| Authors: | Song Ruijiao Feng Caijun Qi Juncang |
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| Institution: | Agricultural College of Shihezi University/The Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Corps, Shihezi 832003, Xinjiang, China |
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| Abstract: | To investigate the effects of hydrogen-rich water (HRW) on drought resistance in germination period and seedling biomass distribution under drought stress, barley variety Xinpi 6 was used as material, which cultured in 20% polyethylene glycol-6000 (PEG). The 16 indexes were compared in different concentrations of HRW, such as germination rate and seedling root-shoot ratio. The results showed that the suitable concentration of HRW treatment could significantly increase the germination rate, dry matter transfer amount, transfer rate, and conversion efficiency; reduced respiratory consumption of dry matter and root-shoot ratio; increased the roots and buds’ dry weight; promoted the accumulation of soluble sugar, soluble protein, and chlorophyll in barley seedlings. It could be concluded that suitable concentration of HRW could increase the germination rate of barley seeds under drought stress by regulating the transport of dry matter, and reduce the adverse effects of drought stress on the proportion of root and bud biomass of seedlings by regulating the contents of soluble sugar, soluble protein, and chlorophyll. |
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| Keywords: | Hydrogen-rich water Drought stress Barley Germination |
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