Goztek, I know that it is not possible to propagate carob from cutting. So probably it is to difficult to make airlayering. I try one but can’t succeed, because tree was far from my house, period was long so I can’t give water continuously.
İt’s very easy to germinate from seeds. You can germinate to many. Pour hot water on the seeds keep them in water, second day pour hot water on them again. Keep seeds in cold water 1 or 2 more days, then ready to sow. Germination will be in 2 weeks.