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Pakistan Journal of Biological Sciences
Year: 2001  |  Volume: 4  |  Issue: 9  |  Page No.: 1078 - 1082

Study of Various Sized Leaf Vascular Bundles and Surrounding Tissues of Six Sugarcane Varieties

Nosheen Noor Elahi and M. Ashraf    

Abstract: Three sized vascular bundles and significant difference in the distance between these vascular bundles and different types of motor cells in the leaf blades of all six sugarcane varieties (i.e., CP84-1198, CP85-1491, CP88-1165, CP89-846, TCP86-3368, CP77-400) were noted and these results indicated the existence of relationship between leaf cytology and morphological characters like curling habit. Large vascular bundles were characterized by the presence of large metaxylem vessels on either side of the protoxylem. The cellular composition of large vascular bundles indicated that the phloem loading in large vascular bundle is an apoplastic step. In some varieties large motor cells were observed. Cytological differences in leaf blade indicated the difference in morpho-physiological characters in all the varieties.

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