Abstract:
:Reciprocal grafts, and applications of gibberellin (GA) and indoleacetic acid (IAA) were used to localize the site of control for stem elongation in cucumber (Cucumis sativus L.). Dwarf and tall plants were reciprocally grafted to determine influence of stems and roots on stem elongation. At 21 days there were no significant differences in length between stems grafted to their own roots and those grafted to roots of the other type. GA(3), GA(4+7), and IAA were applied to seedlings with and without live apical buds. Seedlings with live apical buds responded to level of added GA, but not to added IAA. GA(4+7) was more effective than GA(3). Hypocotyls of tall plants responded more to both GA treatments than did those of the dwarves when both types had live apical buds. When either GA(4+7) or IAA was applied to seedlings with dead apical buds, elongation of the hypocotyl responded to level of the growth regulator, but there was no difference in response between the dwarf and tall plants.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Sandhu MS,Lockard RG,Kasperbauer MJdoi
10.1104/pp.53.6.942subject
Has Abstractpub_date
1974-06-01 00:00:00pages
942-3issue
6eissn
0032-0889issn
1532-2548journal_volume
53pub_type
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