| 李凯荣,王健,贺秀贤.天然油菜素内酯对五种牧草种子发芽和胚根下胚轴伸长的影响[J].干旱地区农业研究,2008,(1):221~225 |
| 天然油菜素内酯对五种牧草种子发芽和胚根下胚轴伸长的影响 |
| Effects of natural brassinolide on germination radicle and hypocotyls elongation of five herbage seeds |
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| DOI：10.7606/j.issn.1000-7601.2008.01.41 |
| 中文关键词: 天然油菜素内酯 牧草种子 发芽 胚根下胚轴伸长 |
| 英文关键词:natural brassinolide herbage seeds germination elongation of radicle and hypocotyls |
| 基金项目:中科院“百人计划”项目(2004109)； 国家重点实验室基金(10501-163) |
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| 中文摘要: |
| 用9个不同浓度的天然油菜素内酯溶液浸种处理5种牧草种子,观测其对种子发芽和胚根下胚轴伸长的影响。结果表明,0.01 mg/L浓度处理使苜蓿种子发芽率比对照提高了32.2%,发芽天数缩短了1.4 d;0.01mg/L处理使鲁梅克斯种子发芽率增加了27.8%,0.05 mg/L处理使其发芽天数提前了0.8 d;0.03 mg/L处理使普那菊苣种子发芽率提高了28.9%,发芽天数缩短了0.3 d;0.4 mg/L处理使串叶松香草种子发芽率增加了26.7%,发芽天数提前了1.2 d;0.03 mg/L处理使小冠花种子发芽率提高了23.3%,0.05 mg/L使其发芽天数缩短了0.9 d。0.05、0.07、0.03、0.4和0.03 mg/L处理对苜蓿、鲁梅克斯、普那菊苣、串叶松香草和小冠花胚根下胚轴伸长的促进效应最为明显。 |
| 英文摘要: |
| The germination capacity of the seeds was obviously promoted after five herbage seeds soared with natural brassinolide.Compared with the control,the germination rate of Medicago sativa seeds was increased by 32.2% after using 0.01 mg/L natural brassinolide treatment,and mean germination days of the seeds was cut down by 1.4 day.After Rumex seeds were treated with 0.01 mg/L natural brassinolide,the germination rate of the seeds was increased by 27.8%,and mean germination days of the seeds was cut down by 0.8 day after seeds treated with 0.05 mg/L natural brassinolide.The germination rate of Puna chicory seeds increased by 28.9% after the seeds treated with 0.03 mg/L natural brassinolide,and mean germination days of the seeds was cut down by 0.3 day.After Silphium perfoliatum seeds treated with 0.4 mg/L natural brassinolide,the germination rate of the seeds was increased by 26.7%,and mean germination days of the seeds was cut down by 1.2 day.After Coronilla varia seeds treated with 0.03 mg/L natural brassinolide,the germination rate of the seeds was increased by 23.3%,and mean germination days of the seeds was cut down by 0.8 day after seeds treated with 0.05 mg/L natural brassinolide.0.05 mg/L natural brassinolide was the most suitable for the elongation of Medicago sativa radicle and hypocotyls,0.07 mg/L was the best for the elongation of Rumex radicle and hypocotyls,and 0.03 mg/L was the most suitable for the elongation of Puna chicory and Coronilla varia radicle and hypocotyls,0.4 mg/L natural brassinolide was the most suitable for the elongation of Silphium perfoliatum radicle and hypocotyls. |
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