Synthesis, Characterization, and Encapsulation of Novel Plant Growth Regulators (PGRs) in Biopolymer Matrices

Novel plant growth regulators (PGRs) based on the derivatives of dehydroamino acids 2,3-dehydroaspartic acid dimethyl ester (PGR1), Z-isomer potassium salt 2-amino-3-methoxycarbonylacrylic (PGR2) and 1-methyl-3-methylamino-maleimide (PGR3) have been synthesized their growth-regulating properties investigated. Laboratory testing revealed activity. PGR1 showing most stimulating activity all laboratory tested cultures were used in field experiments. Results showed that is a highly effective environmentally friendly regulator with effects different crops. Biopolymeric microcapsule formulations (chitosan/alginate loaded PGR) suitable for application agriculture prepared characterized. Physicochemical release profiles PGRs from depend molecular interactions between constituents including mainly electrostatic hydrogen bonds. The differences structure did not affect mechanism which was identified as diffusion through microcapsules. obtained results opened perspective future use new promising agroformulations sustained target regulation.