| 陈锦平,潘丽萍,王冬梅,邢颖,苏秀清,兰秀,覃金环,刘永贤.不同硒生物强化方式对火龙果硒含量的影响[J].中国南方果树,2020,49(4): |
| 不同硒生物强化方式对火龙果硒含量的影响 |
| Effects of different selenium biofortification methods on the selenium content of pitaya fruit |
| 投稿时间：2019-11-25 修订日期：2019-12-27 |
| DOI：10.13938/j.issn.1007-1431.20190692 |
| 中文关键词: 硒 火龙果 有机肥 pH 生物强化 |
| 英文关键词:Selenium Pitaya fruit Organic fertilizer pH Biofortification |
| 基金项目:广西科技重大专项（桂科AA17202026）；南宁市科学研究与技术开发计划（20182100）；广西重点研发计划项目（桂科AB16380164）；广西农业重点科技计划项目（201604）；广西富硒特色作物试验站项目（桂TS2016011）；广西农业科学院基本科研业务专项（桂农科2017YZ03）；广西农业科学院科技发展基金（2017JM07）；南宁市西乡塘区科学研究与技术开发计划项目（2015312）资助。 |
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| 中文摘要: |
| 为探究适用于提高火龙果硒含量的含硒肥料种类和施肥方式，以“金都1号”火龙果为试验材料，增施含硒有机肥和氨基酸硒肥，氨基酸硒肥又设置喷施（3种浓度）和淋施（3种浓度）两种施用方式，研究火龙果产量、果肉和茎硒含量的变化特征。结果表明，施用含硒肥料对火龙果产量无显著影响（p>0.05）。增施含硒有机肥和淋施氨基酸硒肥均显著提高火龙果果肉、茎硒含量（p<0.05）。所有处理组中，含硒有机肥料处理组果肉硒含量最高，达到0.019 3 mg/kg，是空白对照的5.7倍，淋施氨基酸硒肥处理组果肉硒含量范围在0.006 1 ~0.007 9 mg/kg。所有喷施氨基酸硒肥处理组果肉、茎硒含量与对照无显著差异（p>0.05）。结论：土壤施硒是火龙果更为有效的硒生物强化方式；在酸性土壤中，施用碱性含硒有机肥能更好地达到硒生物强化效果。 |
| 英文摘要: |
| The aim of this study was to estimate the suitable types and fertilization methods of selenium-containing fertilizers for improving the selenium content of pitaya fruit. For this end, the yield and the selenium accumulation characteristic of fruit and stem were studied. The ‘Jindu 1’ pitaya fruit was used as material in this experiment. The pitaya fruit plants were treated by two different types of selenium-containing fertilizers (organic fertilizer and amino acid fertilizer). Amino acid foliar fertilizer treated groups had two different fertilization methods (spraying and pouring), and each of them had three different concentrations. The yields were not significantly influenced by selenium-containing fertilizers treatments (P>0.05). The fruit and stem Se contents were increased significantly by organic fertilizer treatment and amino acid foliar fertilizer pouring treatments (P<0.05). The Se content in fruit of organic fertilizer treatment group (0.0193mg/kg) was the highest among all the groups, and it was 5.7 times of the control. The Se contents in fruit of amino acid foliar fertilizer pouring treatments were 0.0061-0.0079 mg/kg. The Se contents in fruit and stem were not significantly influenced by amino acid foliar fertilizer spraying treatments (P>0.05). Conclusion: Appling selenium in soil is a more effective method of selenium biofortification for pitaya fruit. Fertilizing alkaline Se-containing organic fertilizer can enhance the efficiency of selenium biofortification in the acid soil. |
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