Discover the differences between biological and synthetic plant growth regulators, including their sources, modes of action, residue profiles, and regulatory status.

The increase in yield is most pronounced during the first tapping session after applicatied Ethephon. A slight decline in dry rubber content may occur during the second to fourth sessions, followed by a stabilization from the fifth session onward—this is a normal physiological response.

Ethephon Stimulating Increased Latex Yield: Ethephon decomposes to release ethylene, which catalyzes the physiological metabolism of rubber trees and stimulates the flow of latex from tapping cuts, serving as a primary method for boosting rubber production.

Plant growth regulators (PGRs) are specialized agricultural agents—produced via chemical synthesis or biological fermentation—that mimic the activity of endogenous plant hormones. They allow for precise intervention throughout a crop’s entire life cycle, from seed germination to harvest.