摘要
以青菜为材料,研究了不同浓度水葫芦沼液进行青菜种子浸种后对种子发芽、生长、叶绿素含量及抗氧化酶活性的影响。结果表明,沼液浸种可以提高种子的发芽势和发芽率,但与对照相比差异不显著;发芽指数和活力指数随着沼液处理浓度的增加与对照相比显著增加;随着处理沼液施用浓度的增加,青菜的根长逐渐增加,Z1和Z4处理株高与对照相比,虽然有所增加,但与对照差异不显著;株高、鲜重和干重的变化趋势相似,随着沼液处理浓度的增加,株高、鲜重和干重的增加幅度也随之增大,当使用全沼液进行处理后虽然有所降低,但与对照相比显著增加。青菜体内的叶绿素含量、抗氧化酶SOD、POD和CAT活性与对照相比显著增加,当使用全沼液处理后,叶绿素含量与抗氧化酶活性虽然有所降低,但与对照相比显著增加。因此,生理生化参数可作为评判水葫芦沼液浸种可行性的指标之一。
The seeds of Chinese cabbage（Brassica rapa）were soaked in a range of concentrations of biogas slurry from water hyacinth（Eichhornia crassipes）fermentation.The effects of the slurry on seed germination,growth,chlorophyll content and changes of antioxidant enzymes in Chinese cabbages were studied.The germination energy and germination percentage increased with an increase of biogas slurry concentration,but the differences were not significant compared with the controls.The germination index and vigor index increased markedly with an increased concentration of biogas slurry.With the exception of Z1and Z4,the root lengths increased significantly compared with the controls as did shoot height,fresh weight and dry weight：All these parameters increased markedly with an increase of biogas slurry concentration.Although the parameters decreased in the treatment of purified biogas slurry,they were significantly different from the control.The trend of chlorophyll content and antioxidant enzyme activities changed as for the growth parameters.Therefore,the physiological and biochemical parameters could be used as a simple index for quickly assessing the feasibility of soaking seeds in water hyacinth biogas slurry to improve germination.
出处
《草业学报》
CSCD
北大核心
2010年第5期51-56,共6页
Acta Prataculturae Sinica
基金
国家科技支撑项目(2009BAC63B02)资助
关键词
水葫芦
沼液
青菜
发芽
抗氧化酶
Water hyacinth（Eichhornia crassipes）
biogas slurry
Chinese cabbage（Brassica rapa）
germination
antioxidant enzyme
