Selenate and selenite on yield and agronomic biofortification with selenium in rice

被引：25

作者：

Boldrin, Paulo Fernandes ^{[1
]}

Faquin, Valdemar ^{[1
]}

Ramos, Silvio Junio ^{[1
]}

Guimaraes Guilherme, Luiz Roberto ^{[1
]}

Alves Bastos, Carla Elisa ^{[2
]}

Carvalho, Geila Santos ^{[1
]}

de Souza Costa, Enio Tarso ^{[1
]}

机构：

[1] Univ Fed Lavras, Dept Ciencia Solo, BR-3720000 Lavras, MG, Brazil

[2] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Ciencia Solo, BR-13418900 Piracicaba, SP, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2012年 / 47卷 / 06期

关键词：

enriched rice; use of selenium; food security; selenate; selenite; IRON; ANTIOXIDANT; SPECIATION; GOETHITE;

D O I：

10.1590/S0100-204X2012000600014

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to evaluate the effect of doses of selenate and selenite on rice (Oryza sativa) biofortification with Se, as well the influence of these forms of Se in the levels of P, S, Fe, and Zn in grains. The experiment was conducted in a greenhouse, in pots with 4 dm(3) of a sandy clay loam Latosol, with medium texture, in a 5x2 factorial arrangement with five doses of Se (0, 0.75, 1.50, 3.0, and 6.0 mg dm(-3)) and two forms of Se (selenate and selenite). Selenate provided greater efficiency of root uptake of Se, plant-use efficiency, translocation from roots to shoots, and content of this element in rice grains. The application of Se during fertilization influences the levels of P, S, and Zn, but does not affect those of Fe in rice grains.

引用

页码：831 / 837

页数：7

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