1. Growth retarding effects of the herbicide difenzoquat

   • Jeffrey C. Suttle
   • Julie Hultstrand

   OriginalPaper Pages: 123 - 131

2. Identification of cytokinin glucosides in a seaweed extract

   • S. A. B. Tay
   • L. M. S. Palni
   • J. K. MacLeod

   OriginalPaper Pages: 133 - 138

3. Morphological changes incitrus associated with relatively high concentrations of paclobutrazol

   • M. G. Bausher
   • G. Yelenosky

   OriginalPaper Pages: 139 - 147

4. Regulation of cell division in the subapical shoot meristem of dwarf watermelon seedlings by gibberellic acid and polyethylene glycol 4000

   • Leonard Edelman
   • J. Brent Loy

   OriginalPaper Pages: 149 - 161

5. Response of shade trees to root collar drenches of inhibitors flurprimidol and paclobutrazol

   • J. P. Sterrett
   • T. J. Tworkoski

   OriginalPaper Pages: 163 - 167

6. Phytohormone effects on cell division inChlorella pyrenoidosa chick (TX-7-11-05) (chlorellaceae)

   • B. Dwain Vance

   Short Communication Pages: 169 - 173

7. An examination of the growth substance activity of vitamin D₃

   • A. Schmid
   • A. J. Buchala

   Short Communication Pages: 175 - 180

8. Announcement

   Announcement Pages: 181 - 181