Ricinus communis L. (Euphorbiaceae, Acalyphoideae) is a highly variable species known as the castor oil plant. This study aimed to describe R. using several methodologies, such vegetative morphometry, leaf surface ultrastructure, soil analysis, and gas chromatography-mass spectrometry (GC-MS) understand diversity of this species. The morphological analysis revealed that some samples had purple ...

Objective: To determine the stigma receptivity and pollen viability in order to make manual crosses obtain viable progeny castor bean (Ricinus communis L.).Design/Methodology/Approach: Pollen tests were made on breeding materials by staining with acetocarmine solution. In elite materials, of was evaluated hydrogen peroxide. From inflorescences, male ones removed female preserved, which covered ...