SONG Sheng,FENG Nai-jie,ZHENG Dian-feng.Effect of Seed Soaking with Uniconazole on Germination and Anti- oxidantEnzyme of Soybean[J].Soybean Science,2008,27(02):259-261,266.[doi:10.11861/j.issn.1000-9841.2008.02.0259]
烯效唑浸种对大豆种子萌发及保护性酶系的影响
- Title:
- Effect of Seed Soaking with Uniconazole on Germination and Anti- oxidantEnzyme of Soybean
- 文章编号:
- 1000-9841(2008)02-0259-03
- Keywords:
- Uniconazole; Soybean; Seed soaking
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 烯效唑是一种延缓型植物生长调节剂,它能够抑制植物体内赤霉素的生物合成、减慢细胞伸长速度。为探讨烯效唑在大豆上的作用效果,以垦农四号大豆为材料,用发芽盒在人工气候箱中进行了大豆种子萌发试验。结果表明:应用25~200 mgL-1浓度范围的烯效唑浸种可降低大豆发芽势,但对发芽率影响不显著;在种子萌发过程中,随着烯效唑浓度升高,根鲜/干重降低;主/侧根粗增加;根长/体积减小,侧根数减少;在50 mgL-1浓度范围内,随着烯效唑浓度升高,过氧化物酶、超氧化物歧化酶、过氧化氢酶活性增强,丙二醛含量降低。试验结果进一步证明了烯效唑能够矮化大豆植株生长,提高保护性酶的活性,增强大豆植株的抵抗逆境的能力。
- Abstract:
- Uniconazole as a kind of growth retardant can inhibit the bio-synthesis of plant gibberellins in vivio and reduce the elongation speed of plant cell.To discuss the effect of uniconazole on soybean,the soybean seeds of Kennong 4 were soaked with 0,25,50,100,200 mgL-1uniconazole for 6 hours,then germinated in the artificial climate box.Results showed that the soybean germination percentage was decreased while germination potential remained stable when treated by uniconazole with concentration between 25 mgL-1and 200 mgL-1.The weight of fresh/dry root,the diameter of main/lateral root increased,while the root length/volume and number of lateral root decreasesd with the increasing of uniconazole concentration in the proceess of seed germination.When the uniconazole concentration was lower than 50 mgL-1,with the uniconazole concentration increasing,the activity of Peroxidase,Superoxide dismutase,Catalase increased,the content of Malondi-adehycle decreased.The result has further proved that uniconazole could inhibit the soybean growth,enhance the anti-oxidant activity,strengthen the ability of stress tolerance of soybean.
参考文献/References:
[1]李青苗,杨文钰.烯效唑对玉米壮苗的形态效应[J].玉米科学,2003,11(3):66-69.(Li Q M,Yang W Y.Morphological effect of soaking seed with uniconazole on high quality seedling of maize[J].Journal of Maize Science,2003,11(3):66-69.)
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备注/Memo
基金项目:黑龙江省教育厅骨干教师资助项目(1054G032)。