I have published a few papers in Journal of Tropical Forest Science, International Tree crops journals. They are not counted for citations. I seek clarifications on this. Thank you
Swaminathan - all bibliographic repositories use a different scoring metric for citation. Some are more generous than others - for instance Google Scholar. RG is a little more conservative in the types of journals that it it includes in its metric database. If the journal you mention is not in their citation database - then no citation will be shown.