Agronomic evaluation of BB-6 brassinosteroid analog in soybean, inoculated with Bradyrhizobium japonicum and AMF, growing on a Ferralsol in winter
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Abstract
National Institute of Agricultural Sciences, located in San José
de las Lajas, Havana, a field study was developed with different
soybean varieties in winter seeding, with the objective of
evaluating the agronomic effects of applying a brassinosteroid
analog on the crop inoculated with Bradyrhizobium japonicum
and mycorrhizal fungi. Results showed significant differences
among treatments for all the varieties studied, proving the
response of this legume to the combined application of
biofertilizer products, obtaining yield increments between 17.07
and 33.91 %. The positive effect of the applied bioregulator
was evident in crop growth and development, achieving the
highest yield increments in the coinoculated treatment with
the application of the bioregulator, values ranging between
29.67 and 42.61 % depending on the crop evaluated. It is also
important to emphasize that the application of this
brassinosteroid analog achieved higher yields than its
biofertilized counterpart, with yield increments between 4.24
and 10.45 %.
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