You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Relation between Petiole Vasculature and Karyotypic Differences in Chromosomal Biotypes of Adhatoda vasica Nees
P. C. Datta and Prabhanjan Samanta
Vol. 135, No. 4 (Dec., 1974), pp. 269-275
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/2474219
Page Count: 7
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Several chromosomal biotypes of Adhatoda vasica Nees were encountered in a cytological investigation of different collections from eastern India. All of these chromosomal biotypes represent distinct patterns of branching of the petiole bundles. Various measurements and countings indicate a direct quantitative relationship between the total chromosome length of the biotypes and the number of xylem cells per unit of cross-sectional area and a very strong inverse relation between the total chromosome length and the diameters of vessels and sieve tubes.
Botanical Gazette © 1974 The University of Chicago Press