Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This 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
Botanical Gazette
Vol. 135, No. 4 (Dec., 1974), pp. 269-275
Stable URL: http://www.jstor.org/stable/2474219
Page Count: 7
  • Read Online (Free)
  • Download ($19.00)
  • Subscribe ($19.50)
  • Cite this Item
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
Preview not available

Abstract

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.

Page Thumbnails

  • Thumbnail: Page 
269
    269
  • Thumbnail: Page 
270
    270
  • Thumbnail: Page 
[271]
    [271]
  • Thumbnail: Page 
272
    272
  • Thumbnail: Page 
[273]
    [273]
  • Thumbnail: Page 
274
    274
  • Thumbnail: Page 
275
    275