Original research
Primary sources or original research are based on an experiment or a study of a topic. They include a methodology section if an experiment was set up and conducted, a results or discussion section, and a conclusion. A secondary source would be an article commenting on or analyzing the original research.
Encyclopedias, handbooks and dictionaries can by useful for clarifying your topic.
Find reference resources, books, journal articles, databases, websites and literature review resources for Plant Science.