外源硒对芒果硒含量及果实营养品质的影响
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(广西壮族自治区亚热带作物研究所 /农业农村部农产品质量安全风险评估实验室.(南宁),广西南宁530001)

作者简介:

秦玉燕(1987-),女,广西桂林人,助理研究员,硕士,研究方向农产品质量安全。E-mail:956346090@qq.com。

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基金项目:广西科技基地和人才专项项目(桂科 AD17129008);广西青年科学基金项目(2018GXNSFBA281171)。


Effects of exogenous selenium on selenium content and fruit quality of Mangifera indica L.
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(Subtropical Crops Research Institute of Guangxi Zhuang Autonomous Region/Laboratory ofQuality and Safety Risk Assessment for AgriculturalProduct(Nanning),Ministry of Agriculture and Rural Affairs of the People’s Republic ofChina,Nanning Guangxi530001)

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    摘要:

    探讨叶面喷施和土施外源硒对芒果叶片和果实硒含量、果实矿质元素含量及营养品质的影响,以期为富硒芒果的安全生产提供理论依据和技术支持。以“桂热 82号”芒果为试材,叶面喷施以亚硒酸钠为硒源,设置0.0、25.0、50.0、100.0、150.0和 200.0 mg/L 6个浓度水平,于生理落果结束后,每 15 d喷施一次,连喷 2次。土施设置亚硒酸钠处理和硒酸钠处理,施肥量为 10 g/株,于花期沟施。结果表明,芒果叶片和果实中的硒含量随着叶面喷硒浓度的增加而递增。叶面喷施 50 mg/L亚硒酸钠可显著提高果实 Vc含量,200 mg/L亚硒酸钠可显著提高果实K、可滴定酸含量,100~ 200 mg/L亚硒酸钠可显著降低果实Zn、Ca含量。土施相同量的亚硒酸钠和硒酸钠均可显著提高芒果叶片和果实硒含量。土施硒酸钠叶片和果实硒含量显著高于亚硒酸钠。土施 10 g/株亚硒酸钠显著降低果实 Ca、Mg含量,土施 10 g/株硒酸钠显著提高果实 K、Vc含量,降低果实 Ca含量。叶面喷硒和土壤施硒均可显著提高芒果叶片和果实硒含量,其中叶面喷硒提高幅度远大于土壤施硒提高幅度。土施硒酸钠比亚硒酸钠更容易被芒果吸收。富硒芒果生产上推荐叶面喷施 25.0~ 50.0 mg/L亚硒酸钠,或者土施 10 g/株硒酸钠。

    Abstract:

    This paper aim to explore the effects of foliar and soil application of selenium on the contents ofselenium,mineral elements and the fruit quality of Mangifera indica L.,which will provide the theoretical basis and technology support for the safety production of selenium-rich mango. Mango cultivar“Guire 82”was used as the experimentalmaterial,and the sodiumselenite solution was selected as selenium source in spraying selenium experiment,and six concentrations were designed,including0.0,25.0,50.0,100.0,150.0 and 200.0 mg/L. The solution of treatments was sprayed twice every 15 days after physiological fruit drop time. The soil selenium experiment included 10 g/plant sodium selenite and 10 g/plant sodium selenate treatment at flowering. The results indicated that selenium both in leaves and fruits increased in response to the increasing selenium concentration after spraying different concentrations of sodium selenite on the leaves of Mangifera indica L. Bothselenite and selenate soil selenium treatments increased the selenium content in leaves andfruits,while selenate treatmentwas more effective. Spraying 50 mg/L sodium selenite significantly increased the content of Vc infruit,and 200 mg/L sodiumselenite significantly increased the content of K and titration acid in fruit,while spraying 100~ 200 mg/L sodium selenite significantly decreased Zn and Ca content in fruit. The soil treatment with 10 g/plant sodium selenite significantly decreased Caand Mg content infruit,while the selenate treatment at the same dose significantly increased K and Vc content and decreasedCa content in fruit. Both foliar and soil application of selenium increased the contents of selenium in leaves andfruits,where foliar application increased much more than soil application. Sodium selenate was easier to be absorbed than sodium selenite in soil selenium application. Spraying 25.0~ 50.0 mg/L sodium selenite or soil treatment with 10 g/plant sodium selenate could be recommended for the production of Se-enriched mango.

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秦玉燕,陈永森,吴凤,黄国弟,王运儒,时鹏涛,蓝唯,蒋越华,唐莹莹.外源硒对芒果硒含量及果实营养品质的影响[J].中国土壤与肥料,2020,(5):213-219.

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  • 收稿日期:2019-09-04
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  • 录用日期:2019-10-13
  • 在线发布日期: 2020-11-06