Plant Growth Regulators (or Phytohormones)
You’ve probably heard of rooting hormone powder, or auxin, or gibberellins – these are all ‘Plant Growth Regulators’. Plant Growth Regulators used to be known as ‘phytohormones’ which means plant hormones. This has been quite a contentious topic among plant biologists. A hormone in an animal is a chemical messenger, a substance which acts as […] Read more… >