| 刘建新,刘瑞瑞,刘秀丽,贾海燕,卜婷,李娜.不同时期喷施NaHS对盐碱地裸燕麦农艺和产量性状的影响[J].干旱地区农业研究,2022,40(6):147~155 |
| 不同时期喷施NaHS对盐碱地裸燕麦农艺和产量性状的影响 |
| Effects of spraying NaHS at different periods on agronomic and yield traits of naked oats in saline\|alkali land |
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| DOI：10.7606/j.issn.1000-7601.2022.06.16 |
| 中文关键词: 裸燕麦；硫化氢；盐碱胁迫；农艺性状 产量 |
| 英文关键词:naked oat hydrogen sulfide saline\|alkali stress agronomic traits yield |
| 基金项目:国家自然科学基金项目(31960375)；甘肃省自然科学基金项目(20JR5RA491) |
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| 中文摘要: |
| 采用田间试验，分别在2020年裸燕麦不同生育期和2021年裸燕麦抽穗期喷施不同浓度H2S供体硫氢化钠(NaHS)，分析H2S对盐碱胁迫下裸燕麦农艺和产量性状的影响。2020年试验结果表明：喷施时期对裸燕麦株高、单株粒数、单株产量、收获穗、千粒重和产量具有显著影响；NaHS浓度对株高和千粒重无显著影响，而对单株粒数、单株产量、收获穗和产量产生显著影响；二者的交互作用除对株高影响不显著外，对其余上述指标均具有显著影响。株高、单株粒数、单株产量、收获穗、千粒重和产量均以抽穗期喷施最高；单株粒数、单株产量、收获穗和产量随NaHS浓度增大整体呈先增加后下降的变化趋势，其中以喷施200 μmol·L-1NaHS的产量最高。单株粒数和单株产量分别以抽穗期喷施100 μmol·L-1和50 μmol·L-1NaHS最高；收获穗数和千粒重分别以抽穗期喷施200 μmol·L-1和50 μmol·L-1NaHS最大；产量以抽穗期喷施200 μmol·L-1NaHS最优。隶属函数综合分析显示：抽穗期喷施200 μmol·L-1NaHS提高裸燕麦农艺产量性状的效果最佳。2021年试验结果表明：抽穗期喷施不同浓度NaHS对裸燕麦株高、收获穗和千粒重的影响不显著；与喷施0 μmol·L-1 NaHS相比，喷施25~400 μmol·L-1 NaHS可不同程度提高裸燕麦穗铃数、穗粒数和产量，其中喷施200 μmol·L-1 NaHS的效果最显著。综上所述，抽穗期喷施200 μmol·L-1 NaHS可有效促进裸燕麦穗铃数和穗粒数等农艺性状并提高产量。 |
| 英文摘要: |
| Field experiments were conducted to spray different concentrations of H2S donor sodium hydrosulfide (NaHS) at different growth periods of naked oats (Avena nuda) in 2020 and at the heading stage of naked oats in 2021 to examine the effects of H2S on agronomic and yield traits of naked oats under salt\|alkali stress. The 2020 test results showed that the spraying period had a significant effect on plant height， grain number per plant， yield per plant， harvested ears， 1000-grain weight and yield. The NaHS concentration had no significant effect on plant height and 1000-grain weight， but it significantly affected the grain numbers per plant， yield per plant， harvested ears and yield. Except for the insignificant influence on plant height， the interaction between the two had a significant influence on the other above\|mentioned indexes. Plant height， grain numbers per plant， yield per plant， harvested ears， 1000-grain weight and yield were all sprayed at the heading stage to the highest.The grain numbers per plant， yield per plant， harvested ears and yields showed an overall trend of increasing first and then decreasing with the increase of NaHS concentration. Among them， the yield of 200 μmol·L-1NaHS sprayed was the highest. The grain numbers per plant and the yield per plant were the highest when spraying 100 μmol·L-1 and 50 μmol·L-1 NaHS at the heading stage， respectively. The harvested ears and 1000-grain weight were the largest by spraying 200 μmol·L-1 and 50 μmol·L-1 NaHS at the heading stage， respectively. The best yield was to spray 200 μmol·L-1 NaHS at the heading stage. Comprehensive analysis of membership function showed: spraying 200 μmol·L-1 NaHS at the heading stage had the best effect on improving the agronomic yield traits of naked oats.The test results in 2021 showed that: spraying different concentrations of NaHS at the heading stage had no significant effects on the plant height， harvested ears and thousand\|grain weight of naked oats. Compared with spraying 0 μmol·L-1 NaHS， spraying 25~400 μmol·L-1 NaHS increased spike boll numbers， spike grain numbers and the yield of naked oats to varying degrees. Among them， the effect of spraying 200 μmol·L-1NaHS was the most significant. In summary， spraying 200 μmol·L-1 NaHS at the heading stage effectively promoted the agronomic traits and yield of naked oats， such as the spike boll numbers and spike grain numbers. |
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