YU Xiu-zhen,ZHANG Cai-hong,JIANG Lu-yan,et al.Effect of Exogenous Nitric Oxide on Tomato Seed Germination and Growth of Tomato Seedling[J].Northern Horticulture,2014,38(22):5-8.
外源NO对低温胁迫下番茄种子萌发和幼苗生长的影响
- Title:
- Effect of Exogenous Nitric Oxide on Tomato Seed Germination and Growth of Tomato Seedling
- 文章编号:
- 1001-0009(2014)22-0005-04
- 分类号:
- S 641.204+.1
- 文献标志码:
- A
- 摘要:
- 以鲜食番茄品种‘欧亚多’种子和幼苗为试材，对种子进行不同浓度（0.05、0.10、0.50、1.00、1.50 mmol/L）SNP(NO供体硝普钠)浸泡后进行低温(18±1)℃处理；对幼苗施用不同浓度（0.1、0.5、1.0、1.5 mmol/L）的SNP并进行低温(12±1)℃/(8±1)℃处理，以研究外源NO对低温胁迫下番茄种子萌发和幼苗生长的影响。结果表明：0.05、0.10 mmol/L的SNP处理提高了低温胁迫下番茄种子的发芽率、发芽势、发芽指数和活力指数，其中0.05 mmol/L的SNP处理效果最好；施用不同浓度SNP（0.10～1.00 mmol/L）可不同程度地缓解低温对番茄幼苗的株高、茎粗、叶片数、鲜重、干重及根系活力的抑制，其中0.50 mmol/L的SNP处理对根系活力影响效果最好，其余指标为1.00 mmol/L的SNP处理效果最好。
- Abstract:
- Taking the processing tomato cultivar ‘Ouyaduo’ as material，different exogenous sodium nitroprussid（0.05，0.10，0.50，1.00,1.50 mmol/L）on tomato seed under low temperature (18±1)℃ and different exogenous sodium nitroprussid（0.1，0.5，1.0，1.5 mmol/L）on growth of tomato seedling under low temperature (12±1)℃/(8±1)℃ were used in this experiment，to study the effects of exogenous NO on tomato seed germination and growth of tomato seedling.The results showed that SNP of 0.05 and 0.10 mmol/L could increase tomato seed’s germination rate，germination energy，germination index and activity index，the optimum concentration was 0.05 mmol/L SNP of 0.10-1.00 mmol/L differently alleviated the restrain of height，thickness，number of leaves，fresh and dry weight and root activity on growth of tomato seedling，the optimum concentration of SNP for root activity was 0.50 mmol/L，other indexes were 1.00 mmol/L．
参考文献/References:
[1]林多,杨延杰,范文丽,等.低温对蕃茄幼苗叶片活性氧代谢的影响[J].辽宁农业科学，2001(5):1-4．
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备注/Memo
第一作者简介：于秀针（1985-），女，硕士，园艺师，现主要从事设施栽培与生理等研究工作。E-mail:：yxzshz@126.com．