Evaluation of nano-selenium biofortification characteristics of alfalfa (Medicago sativa L.)
文献类型： 外文期刊
作者： Sun, Pengbo 1 ; Wang, Zhijun 1 ; Yuan, Ning 1 ; Lu, Qiang 1 ; Sun, Lin 3 ; Li, Yuyu 1 ; Zhang, Jiawei 1 ; Zhang, Yuhan 2 ; Ge, Gentu 1 ; Jia, Yushan 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Key Lab Forage Cultivat Proc & High Efficient Util, Minist Agr & Rural Affairs, Hohhot, Peoples R China
2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Key Lab Grassland Resources, Minist Educ, Hohhot, Peoples R China
3.Inner Mongolia Acad Agr & Anim Husb Sci, Hohhot 010031, Peoples R China
关键词： nano-selenium; alfalfa; yield; selenium accumulation; physiological characteristics
期刊名称：GREEN PROCESSING AND SYNTHESIS （ 影响因子：4.3； 五年影响因子：3.7 ）
ISSN： 2191-9542
年卷期： 2023 年 12 卷 1 期
页码：
收录情况： SCI
摘要： Selenium (Se) is indispensable for animals and humans. One option to address Se deficiency is to biofor-tify plants with Se. Biofortification of forage with Se nanoparticles (NPs) is gaining more attention as an effi-cient and safe source of Se for livestock. The purpose of this study was to investigate the effect of different con-centrations of NPs-Se (0, 30, 50,100,150, and 250 mg.L-1) on the growth of alfalfa harvested multiple times, and to provide a basis for the production of Se-enriched forages. Applying 50 mg.L-1 concentration of NPs-Se had the best effect on yield over three harvests. Over three harvests, low-dose NPs-Se (30 and 50 mg.L-1) application signifi-cantly increased peroxidase and superoxide dismutase activities, chlorophyll content and carotenoid content, and significantly decreased malondialdehyde content. The total Se content and Se accumulation in plants at the same harvest showed an upward trend with increasing Se concentration. At the same concentration, from first harvest to third harvest, Se content and Se accumulation showed an initially increasing and then decreasing trend. The evaluation found that foliar application of NPs-Se at 50 mg.L-1 could have the greatest positive effect on the growth and yield of multiple-harvested alfalfa.
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