I’m not sure what you mean by “correlated,” but if you’re thinking of some kind of communication between plants, that’s a very new field. The earliest findings indicate possibly chemical communicants, separate from or conjunction with micorrhizal (fungi) organisms as well as bacterial colonies. Here are just a couple of articles (you can look up more if you’re interested.) Plant relationships breakdown when they meet new ‘fungi’ and Bacterial community inside the plant root: Plants choose soil bacteria that they allow into their roots