sentences:  These technologies included pesticides, irrigation projects, and synthetic nitrogen fertilizer.The novel technological development of the Green Revolution was the production of what some referred to as “miracle seeds.”  Scientists created strains of maize, wheat, and rice that are generally referred to as HYVs or “high-yielding varieties.” HYVs have an increased nitrogen-absorbing potential compared to other varieties.Since cereals that absorbed extra nitrogen would typically lodge, or fall over before harvest, semi-dwarfing genes were bred into their genomes.