Anatomical Study of Petiole and Leaf Parts of Gossipum Hirsutum L.in Erbil / Iraq

Abstract

The plant Gossypium Hirsutum genotypes were grown in Qwshtapa district, Grdmala village, which is 30 kilometres from the centre of Erbil, Iraq. The cotton genotypes grown there included Coker 310, Lachata (Iraqi genotypes), Cafko, Dunn 1047, Montana, Stone Ville (USA genotypes), Bakhtegon, Khdorda, and Vanamin (Iranian genotypes). The anatomical investigation demonstrates distinct petioles, midribs, laminas, and margin outline shapes among the genotypes. They contain secretory tissues, cluster crystals, and tannins. While some genotypes lack the trichomes, others have; these genotypes are multicellular glandular and unicellular branching or unbranched nonglandula.