Evaluating Anatomical and Morphological Features Of Castor Plant (Ricinus Commutnisl)

Castor plant with scientific name of (Ricinus Commutnisl) which belongs to (Euphorbiacene) family (Mahdavi,1378) is an unwoody plant that it's stem residuum can be used in paper production industry and wooden multi structures after using in petrochemical , pharmaceutical, cosmetic and hygienic industries .But optimal use of this unwoody biological material requires cognition of it's Anatomical and Morphological Features.A number of castor stems were sampled randomly from khajeh castle in khouzastan state and their anatomical features were studied in 3 levels, namely, longitudinal, lateral, and radial and anatomicability and coding of castor wooden stems based on Ayvia International Committee features that is specific of anatomical analyzing of trees wood and shrubs show that this plant structure is very similar to broad leaved wooden trees in term of anatomical features. Also, morphological features including fibre length and thickness and biometry factor derived from it (conjugate index, Rankol index, flexibility index) with 3 height (%5,%50,%75) were studied and it's result were compared by statistical scheme. Results showed that relation of conjugate index (fibre diameter ratio to fibre length) in small stems of castor are less than agricultural fibres. As a result, it is predicated that produced paper from these stems have not desirable resistance to laceration ,but it's Rankel index relation (twice of wall thickness to fiber diameter ratio) was near to broadleaved range and many nonwooden plants and consequently, it is expected that produced paper has accepted resistance to strain , cracking and folding.