祝海竣, 李丹妮, 张　听, 文　天, 文　璨, 王学华. 抗盐碱剂对盐碱胁迫条件下双季稻渗透调节物质及根系活力的影响[J]. 土壤通报, 2022, 53(5): 1098 − 1105. DOI: 10.19336/j.cnki.trtb.2021101701
引用本文: 祝海竣, 李丹妮, 张　听, 文　天, 文　璨, 王学华. 抗盐碱剂对盐碱胁迫条件下双季稻渗透调节物质及根系活力的影响[J]. 土壤通报, 2022, 53(5): 1098 − 1105. DOI: 10.19336/j.cnki.trtb.2021101701
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ZHU Hai-jun, LI Dan-ni, ZHANG Ting, WEN Tian, WEN Cai, WANG Xue-hua. Effects of Saline-alkali Resistant Agents on Osmotic Adjustment Substances and Root Activity of Double-cropping Rice under Saline-alkali Stress[J]. Chinese Journal of Soil Science, 2022, 53(5): 1098 − 1105. DOI: 10.19336/j.cnki.trtb.2021101701
Citation: ZHU Hai-jun, LI Dan-ni, ZHANG Ting, WEN Tian, WEN Cai, WANG Xue-hua. Effects of Saline-alkali Resistant Agents on Osmotic Adjustment Substances and Root Activity of Double-cropping Rice under Saline-alkali Stress[J]. Chinese Journal of Soil Science, 2022, 53(5): 1098 − 1105. DOI: 10.19336/j.cnki.trtb.2021101701
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抗盐碱剂对盐碱胁迫条件下双季稻渗透调节物质及根系活力的影响

Effects of Saline-alkali Resistant Agents on Osmotic Adjustment Substances and Root Activity of Double-cropping Rice under Saline-alkali Stress

    摘要
  • 摘要:
      目的  为筛选合适的抗盐碱剂供盐碱地水稻生产应用。
      方法  本研究以早稻品种陵两优942和晚稻品种Y两优911为材料，采用盆栽土培法研究了几种抗盐碱剂（T1微纳米硅、T2矿源黄腐酸钾、T3盐碱、T4松土精 + 矿源黄腐酸钾）对盐碱胁迫条件下（CK1盐碱胁迫、CK2无盐碱胁迫）水稻渗透调节物质、根系活力及产量的影响。
      结果  水稻的SPAD值、渗透调节物质、根系活力和产量会受到盐碱胁迫的显著影响，中度胁迫造成的影响高于轻度胁迫造成影响；施用抗盐碱剂有利于缓解盐碱胁迫的不利影响，且在盐碱胁迫较重时效果更明显。在中度盐碱胁迫下，与CK1相比，施用抗盐碱剂T1、T2、T3、T4，叶片SPAD、根系活力、产量显著增加，叶片游离脯氨酸含量、可溶性糖含量显著下降；与CK2 相比，CK1减产40.8%，施用抗盐碱剂则使Y两优911在盐碱胁迫条件下减产幅度显著减小，T1、T4、T3、T2分别比CK1产量高出53.9%、31.1%、21.1%、16.3%。
      结论  不同处理间综合表现以T1（微纳米硅）和T4处理（松土精 + 矿源黄腐酸钾）表现最佳，是盐碱地水稻增产增收的有效措施。

     

    Abstract:
      Objective  The suitable saline-alkali resistant agents were screened for rice production in saline-alkali soil.
      Methods  The early rice variety Lingliangyou 942 and late rice variety Yliangyou 911 were taken as materials, the effects of several saline-alkali resistant agents (T1 micro-nano silicon, T2 mineral source fulvic acid potassium, T3 saline-alkali, T4 Soilfix IR + mineral source fulvic acid potassium) on osmotic adjustment substances, root activity and yield of rice under saline-alkali stress (CK1 saline-alkali stress and CK2 non-saline-alkali stress) were studied by pot culture method.
      Results  The results showed that the SPAD value, osmotic adjustment substance, root activity and yield of rice were affected by saline-alkali stress, and the effect caused by moderate stress was higher than that caused by mild stress. Application of saline-alkali resistant agents was beneficial to alleviate the effect of saline-alkali stress, and the effect was more significant when saline-alkali stress was serious. Under moderate saline-alkali stress, compared with CK1, SPAD value, root activity, and yield of leaves were significantly increased when T1, T2, T3, and T4 were applied, while free proline content and soluble sugar content of leaves decreased significantly. Compared with CK2, the yield of CK1 decreased by 40.8%, and the yield of Yliangyou 911 was significantly reduced under saline-alkali stress by applying salt-alkali resistant agents. The yields of T1, T4, T3, and T2 were higher than those of CK1 by 53.9%, 31.1%, 21.1%, and 16.3%, respectively. T1 and T4 had the best comprehensive performance among different treatments.
      Conclusion  The application of T1 and T4 is an effective measure to increase rice yield and income in saline-alkali soil.

     

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