GAO Shang,LI Hong-yu,PAN Shi-ju,et al.Study on Identification Methods of Alkali-saline Tolerance at Early Seedling Stage for Japonica Rice[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(12):36-39.
粳稻幼苗前期耐盐碱性鉴定方法研究
- Title:
- Study on Identification Methods of Alkali-saline Tolerance at Early Seedling Stage for Japonica Rice
- 文章编号:
- 1002-2767（2014）12-0036-04
- Keywords:
- japonica rice; early seedling stage; alkali-saline tolerance
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为筛选出幼苗前期耐盐碱的粳稻品种，以粳稻品种白粳1号为材料，采用6种NaCl和Na2CO3+NaHCO3浓度模拟盐/碱胁迫，以地上百株鲜重、株高、根长、根数和百株地下鲜重为鉴定指标，研究粳稻幼苗前期耐盐/碱鉴定的胁迫条件。结果表明：百株地上鲜重、株高、根长、根数和百株地下鲜重可以作为粳稻耐盐/碱鉴定指标。NaCl 140.57 mmol?L-1、Na2CO3+NaHCO3 0.041 1 mmol?L-1可作为粳稻耐盐/碱鉴定的胁迫条件。盐碱胁迫对粳稻幼苗前期地下部分的抑制程度大于地上部分。
- Abstract:
- In order to screen japonica rice with alkali-saline tolerance at early stage of seedling,taking japonica rice Baijing 1 as materials,the alkali-saline stress concentration for evaluation was studied takig 6 different NaCl and Na2CO3+NaHCO3 concentrations as simulating alkali-saline stress,with the 100-plant fresh weight at above-ground,seedling height,root length,root number,100-plant fresh weight at under-ground as evaluation indexes.The results showed that these could be used as appraisal indicators,while 140.57 mmol?L-1 NaCl and 0.041 1 mmol?L-1 Na2CO3+NaHCO3 solution could be used as stress condition for the evaluation of alkali-saline tolerance at early seedling stage.Alkali-saline inhibitory degree for under-ground of seedling was greater than above-ground.
参考文献/References:
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备注/Memo
基金项目：黑龙江省教育厅面上资助项目（12521385）；黑龙江八一农垦大学大学生创新创业训练计划资助项目(xc2013006)；黑龙江八一农垦大学博士启动基金资助项目(校启B2011-04)；黑龙江八一农垦大学省作物学重点学科学术骨干科研启动金资助项目(ZWX-QDJ-1)；黑龙江八一农垦大学教学改革资助项目；黑龙江省科技攻关重大资助项目(GA10B102)