METHOD OF WHEAT PLANT GROWTH REGULATING Russian patent published in 1997 - IPC

FIELD: agriculture. SUBSTANCE: method involves treatment of wheat plants with preparation based on sum of triterpenic acids C₃₀H_46-48O₄ isolated from fir greens by extraction of a mixture of petroleum ether and ethyl acetate. Dose of an active substance is 40-60 g/ha, concentration of working solution is 100-150 mg/l. Winter wheat plants were treated at phase of heading onset, and spring wheat - at phases of tillering and heading onset. EFFECT: enhanced effectiveness of method. 2 cl, 2 tbl