Effects of different exogenous selenium on selenium accumulation and distribution and yield components of peanut

doi:10.14088/j.cnki.issn0439-8114.2021.08.008

Abstract

Abstract: Using Yuhua 37 as the experimental material, a pot experiment was conducted to explore the effects of three selenium sources （Na₂SeO₃, SeMet and SeCys） on agronomic characters, selenium content, selenium accumulation, distribution and yield composition of peanut. The results showed that at the same level of selenium application, the application of organic selenium sources （SeMet and SeCys） could promote plant growth better than inorganic selenium sources, and increase the height of main stem, the length of first branch and the number of branches. The content of selenium in all parts of peanut plants was the highest in the roots, followed by kernels. The selenium content and selenium accumulation of peanut kernel from inorganic selenium sources on were higher than those from organic selenium sources. The order of selenium accumulation in different parts of the plant was as follows： Kernel（5.40~16.75 μg/plant）>leaf（3.33~4.86 μg/plant）>stem（2.11~3.47 μg/plant）>shell（2.05~3.23 μg/plant）>root （0.85~1.75 μg/plant）. The distribution ratio of selenium accumulation showed that the proportion of kernel was the largest and that of root was the lowest. The yield, 100-pod weight and full pods weight per plant of organic selenium source were higher than those of inorganic selenium source （Na₂SeO₃）, and the yield of SeMet and SeCys treatments increased significantly by 22.5% and 18.8% compared with Na₂SeO₃ treatment. Soil application of three kinds of exogenous selenium had different effects on agronomic characters, selenium content and cumulative distribution proportion and yield components of peanut.

Key words: different exogenous selenium, peanut, the content of selenium, distribution, yield

CLC Number:

YU Qiong, ZHANG Xiang, SI Xian-zong, SUO Yan-yan, LI Liang, YU Hui. Effects of different exogenous selenium on selenium accumulation and distribution and yield components of peanut[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(8): 41-45.

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