Why does nwakibie trust okonkwo wuthwith his seed yamms?

Nwakibie trusts Okonkwo with his seed yams because Okonkwo has proven himself to be a hardworking and successful farmer who takes pride in his work ethic. Additionally, Okonkwo has a reputation for being reliable and trustworthy in the community, which further strengthens Nwakibie's confidence in him to care for the valuable seed yams.