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Use of bioactivator, biostimulant and complex of nutrients in soybean seeds

Pesquisa Agropecuária Tropical(2014)

Cited 15|Views3
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Abstract
New discoveries have stimulated the use of different substances with physiologic effects, in order to develop agricultural crops. Thus, this study aimed at evaluating seeds treated with biostimulant, bioactivator and nutrients, in the initial development of soybean seeds. Two lots of seeds (high and low vigor, BMX Potência RR cultivar) were used. The products tested were an insecticide with bioactivator effect, a plant growth regulator with biostimulant effect, a complex of nutrients and a control. Under laboratory conditions, the parameters water content, germination, first germination counting, accelerated aging, cold test, length and dry matter weight of seedlings were evaluated. Under greenhouse conditions, evaluations included emergence, emergence speed index, length and dry matter weight of seedlings. The efficiency of the products tested was affected by the seed physiologic quality, with a more pronounced effect for the products in high vigor lots. In general, the treatment with best results for initial performance was the complex of nutrients, followed by the plant growth regulator with biostimulant effect. The bioactivator had negative effect on seeds germination and seedling development.
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Key words
Glycine max L.,seed vigor,seed treatment
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