ZHOU Tong,CHEN Shu-qiang,DU Xiao-dong.Effect of Different Herbicides on Japonica Rice Seedling[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(12):55-59.[doi:10.11942/j.issn1002-2767.2015.12.0055]
除草剂对水稻秧田幼苗的效应研究
- Title:
- Effect of Different Herbicides on Japonica Rice Seedling
- 文章编号:
- 1002-2767(2015)12-0055-05
- Keywords:
- japonica rice; herbicides; physiological property
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为了确定秧田化学除草科学方法,明确不同除草剂对秧田幼苗的生长和生理效果,选用3种药剂4个处理方式,在温棚秧田进行了小区试验。结果表明: 10%千金+48%排草丹组合及90%高杀草丹两种剂型均有良好的除草效果,杂草防效>88%;4个除草剂处理对秧田秧苗的生长和生理指标中的NR活性均有显著抑制(Ρ<0.05),对根系活力只有10%千金+48%排草丹组合有显著抑制(Ρ<0.05);4个除草剂处理之间相比,90%高杀草丹低剂量封闭处理效果最好,在GS活性、可溶性光合产物含量、根系活力、叶龄、地下部鲜重等指标均高于对照和其它3个处理,并达统计显著水平(P<0.05)。
- Abstract:
- In order to select a suitable herbicide and to understand the effects of herbicide on seedling growth potential and physiology in japonica rice,a randomized block plot experiment was conducted in the greenhouse by a design of three kinds of herbicides and four treatments.The results showed that both formula of 10% CyhalofopButyl + 48%Bentazone and 90% SuperSaturn got a significant effect on weed control,and the control efficiency of all treatment were over 88%.Both high and low dose of 10% CyhalofopButyl + 48%Bentazone had a significant inhibiting effects not only on NR and but also on root activity(P<0.05),while the two treatment of 90% SuperSaturn only significantly restrained NR activity(P<0.05).Among the four treatment of herbicides,lower rate of 90% SuperSaturn was the best choice,which demonstrated a significant increase in enzyme activity of NR,soluble photosynthetic products,root activity,leaf age and seedling fresh weight of underground part(P<0.05).
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备注/Memo
收稿日期:2015-08-25
基金项目: “十二五”国家科技支撑计划资助项目(2014-BAD01B03-03);黑龙江省应用技术研究与开发计划科技重大资助项目.
通讯作者 :陈书强(1976-),男,黑龙江省哈尔滨市人,博士,副研究员,从事水稻高产高效优质栽培研究。E-mail:chenshuqiang@163.com。
第一作者简介:周通(1987-),男,黑龙江省哈尔滨市人,硕士,助理研究员,从事水稻栽培及植保工作。E-mail:miyoun_zhou@163.com。