Growth-stimulating effect of delta-endotoxin Bacillus thuringiensis on wheat during juvenile phase

The objective of the study is to examine the growth-stimulating effect of Delta-endotoxin Bacillus thuringiensis on soft spring wheat Altaiskaya 105. Materials and Methods. Strain 202 B. thuringiensis ssp. thuringiensis was used in the work. The seeds of the soft spring wheat Altaiskaya 105, producer “Zhivye produkty Altaya / Life Products of Altay” were used during the study. Results. Evaluation of various concentrations of delta-endotoxin solution on germination energy and laboratory germination showed that the most optimal and effective for presowing soaking is a concentration of 0.6 %. The authors revealed the stimulating effect of Delta-endotoxin Bacillus thuringiensis, leading to an increase in biometric and biochemical parameters of juvenile soft wheat germs. Heteroauxin and ascorbic acid synthesis increased in the tissues of wheat germs. The obtained effects can due to direct delta-endotoxin stimulating effect on the plants or they can be caused by general plant improvement.