plant growth substances
(Science: plant biology) substances that, at low concentration, influence plant... Read More
noun, plural: hormones
(physiology) Any of the substances produced and secreted by an endocrine gland, and then... Read More
What Is Agar?
Agar, also called agar agar, is a natural gelling agent derived from seaweed (specifically algae belonging to... Read More
(Science: plant biology) a group of plant growth substances (often called phytohormones or plant hormones), the most... Read More