Biostimulant spraying in the sowing furrow improves the initial growth of commom bean

Abstract

The effects of doses of two biostimulants applied in the sowing furrow compared to the traditional seed treatment (ST) were evaluated through yield components. The experiment was carried out in randomized block design, with eight treatments [control (T1); doses of formulation 1 (0.2; 0.3; 0.4 L ha-1 – T2, T3, T4); doses of formulation 2 (0.25; 0.5; 0.75 L ha-1 – T5, T6, T7); commercial dose of formulation 1 as ST (T8)] and six replicates. The dose of 0.5 L ha-1 of formulation 2 promoted final plant stand 6.5% and 5.6% higher compared to the control and to the commercial standard, respectively, and the dose of 0.75 L ha-1 of the same formulation provided seedling emergence 21.4% faster than the commercial standard, which shows that these doses improved plant initial development. However, applying biostimulants in the sowing furrow and the seed treatment provided similar results for the yield components and productivity.

Keywords

• phaseolus vulgaris l.
• biostimulation
• seed treatment