These are some logo concepts done for a startup creating agriculture plant using tissue culture technology. 

The inspiration for the shape of the leaf is the leaf of Mesua ferrea (Na Tree), and the colors are also sampled from the same.

Changed the color scheme towards a more pastel/earthy tone by sampling colors from a rice (Oryza sativa) field. The Orange color is sampled from clay.

Some Business card ideas for the same company.

And some ideas for a letterhead.