Post-Greenhouse Evaluations of Forced Bulbous Plants Progress Reports — September 1996
Date August
15, 1996
Title of Project Postproduction Longevity of Flowering Potted
Bulbs
Institution where work is being conducted N. C. State University and
University of Florida
Amount of Endowment Grant $12,000 ($3,000 NCSU - $9,000 FL)
Covering Period 1/1/96 to 12/31/96
Anticipated Date of Project Completion/Final Report 1996
Individual(s) Conducting Project:
(List Project Leader First)
Dr. Terril Nell- Title Professor
Telephone Number (904) 392-1829
Dr. James Barrett -Title Professor
Dr. A.A. DeHertogh -Title Professor
Postproduction Longevity of Flowering Potted Bulbs
Terril A. Nell, Gus DeHertogh and James E. Barrett
University of Florida and North Carolina State University
To determine the effects of cold storage on postproduction performance
of Asiatic and Oriental lilies and to evaluate postproduction longevity
and quality of several cultivars of Asiatic Lilies, Oriental Lilies and
Paperwhite Narcissus. Ornithogalum dubium was also evaluated for postharvest
performance and longevity.
SUMMARY OF WORK COMPLETED:
A. Asiatic and Oriental Pot Lilies
1. Cold Storage Studies
Asiatic lilies ‘Buff Pixie’ and ‘Sun Ray’ and Oriental lilies ‘Star
Gazer’ and ‘Miss Burma’ were grown at North Carolina State University (NCSU)
during the spring of 1995 and 1996. At marketable stage, plants were placed
in storage at 2C for 0, 3, 6, or 9 days, then sleeved and shipped at 5-6C
for 4-6 days to the University of Florida. Plants were then placed at 18,
21 or 24C at 100 ftc. Pot longevity and bud opening were recorded and the
number of leaves that yellowed were counted every 3 days.
2. Cultivar Evaluations
A total of 18 Asiatic lily cultivars and 3 Oriental cultivars were grown
at NCSU and shipped to the University of Florida at marketable stage as
outlined above. Plants were evaluated at 21C and 70 ftc. Pot longevity
and bud opening were recorded and leaf quality evaluated and rated weekly.
B. Paperwhite Narcissus Cultivar Evaluation
Four new clones of Paperwhite Narcissus, ‘Ariel’. ‘Tal’, ‘Nir’, and
‘Inbal’, were grown at NCSU and shipped to the University of Florida at
marketable stage. Plants were evaluated at 18, 21 and 24C at 100 ftc. for
postproduction longevity and performance.
C. Ornithogalum dubium Evaluation
Ornithogalum dubium was grown at NCSU and shipped to the University
of Florida at marketable stage. Plants were evaluated at 18, 21 and 24C
at 100 ftc. for postproduction longevity and performance.
