Title page for ETD etd-07212010-020448

Type of Document Master's Thesis
Author Garrett, Elizabeth Carol Bass
URN etd-07212010-020448
Title Height control of Eschscholtzia californica using ancymidol, cycocel, and limited inductive photoperiod
Degree Master of Science
Department Horticulture
Advisory Committee
Advisor Name Title
Lyons, Robert E. Committee Chair
Derr, Jeffrey F. Committee Member
McDaniel, Alan R. Committee Member
  • Poppies
Date of Defense 1988-09-05
Availability restricted

Limited inductive photoperiod (LIP) significantly reduced stem length but had no effect on the peduncle length, leaf number, plant diameter, days from seed to first flower or days from start of long days (LD) to first flower in Eschscholtzia californica. However with fewer LD cycles, negative effects associated with LIP included an increasing number of bud abortions and plants remaining vegetative, while the number of axillary buds decreased. Ancymidol [alpha-cyclopropyl-alpha-(4-methoxyphenyl)-5- pyrimidinemethanol] at 35, 45 and 50 ppm reduced stem length, but had no effect on peduncle length. Although plant diameter was significantly reduced, ancymidol had no effect on number of leaves or days to flower. There were no bud abortions, all plants flowered successfully, and there was no negative effect on axillary bud number with the use of ancymidol. Cycocel [(2-chloroethyl) trimethylammonium chloride] had no effect on stem length or the overall plant height in the Eschscholtzia californica. In addition, cycocel proved to be ineffective on associated vegetative growth and reproductive development.

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