Resposta da soja (Glycine max (L.) Merrill) 角 a o de bioestimulante = Soybean (Glycine max (L.) Merrill) response to biostimulant action

作者：Celestina Alflen Klahold; Vandeir Francisco Guimares; Marcia de Moraes Echer; Adolfo Klahold

来源：Acta Scientiarum - Agronomy, 2006.

• reguladores vegetais
• massa seca
• area foliar
• produ o
• plant growth regulators
• dry matter
• leaf area
• yield

Objetivando verificar o efeito do bioestimulante, Stimulate , aplicado via semente e pulveriza o foliar, na cultura da soja, conduziu-se um experimento sob ambiente protegido, em vasos. O delineamento foi de blocos casualizados, com 4 repeti es. Os tratamentos constaram da combina o de doses de bioestimulate, aplicadas via semente (0, 3 e 5 mL kg-1 de sementes) na semeadura e via foliar (0,0; 0,075; 0,150 e 0,225 mL L-1), aos 58 dias ap車s a emerg那ncia (DAE). Realizaram-se coletas de plantas aos 73 e 129 DAE.Para algumas das vari芍veis estudadas, nas doses utilizadas, houve efeito negativo na resposta 角 aplica o de bioestimulante, para algumas doses testadas. Respostas positivas foram verificadas para massa seca de flores, ra赤zes, raz o raiz/parte a谷rea, n迆mero de flores, vagens e gr os e produ o por planta. Destacaram-se positivamente os tratamentos: 0,0 mL 0,5 kg-1 (AS) + 0,150 mL L-1 (APF); 3,0 mL 0,5 kg-1 (AS) + 0,0 mL L-1 (APF); 3,0 mL 0,5 kg-1 (AS)+ 0,225 mL L-1 (APF) e 5,0 mL 0,5 kg-1 (AS) + 0,075 mL L-1 (APF). Aiming to verify the effect of the bioestimulant, Stimulate , applied saw by seed and leaf pulverization, in the culture of the soybean. It behaved an experiment under greenhouse, in vases. Randomized block experimental design was used, with four repetitions. The treatments consisted of the combination of bioestimulant doses: seed application (SA) (0; 3; and 5 mL kg-1 of seeds) in the sowing and leaf spray (LS) (0.0; 0.075; 0.150; and 0.225 mL L- 1), to the 58 days after the emergency (DAE). Collections of plants were accomplished to the 73 and 129 DAE. For some of the studied variables, in the used doses, there was negative effect in the response of the biostimulant application, for some tested doses. Positives responses were verified for flowers and roots dry mass; root/shoot relation; flowers; beans and grains number; and yield for plant. They stood out the treatments: 0,0 mL 0.5 kg-1 (SA) + 0.150 mL L-1 (LS); 3.0 mL 0.5 kg-1 (SA) + 0.0 mL L-1 (LS); 3.0 mL 0.5 kg-1 (SA) + 0.225 mL L-1 (LS); and 5.0 mL 0.5 kg-1 (SA) + 0.075 mL L-1 (LS).