| Abstract Detail
Reproductive biology Grocholl, John J. [1], Schafran, Peter [2], Jones, Marcus [3]. Effects of Day Length on Cattleya sp.(Orchidaceae) Seed Germination. John J. Grocholl1, Peter W. Schafran1, Marcus E. Jones2 1Department of Biological Sciences, Old Dominion University, Norfolk, Virginia, USA 2Kaplan Orchid Conservatory, Old Dominion University, Norfolk, Virginia, USA Effects of Day Length on Cattleya sp.(Orchidaceae) Seed Germination Propagation of tropical orchids by seed is common orchid in cultivation. Seeds of various orchid species show a wide range of germination rates when placed in different light levels. In laboratories, seeds receive a distinct intensity of light for a predetermined number of hours to simulate a natural day. Some germinate better with an extended day length of about 12 hours, while others show a higher germination rate in complete darkness. We test the effects of a varying photoperiod on the germination of Cattleya sp. (Orchidaceae) seeds. Seeds will be planted on growth plates for a 24-hour cycle, a 12-hour cycle, a 4-hour cycle, and in complete darkness. Germination rate is evaluated over eight weeks for each treatment group or until sufficient time has passed for germination to occur. This work can be applied to other cultivated orchids, enhancing germination fro commercial and conservation purposes.
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1 - Old Dominion University, Botany, 5115 Hampton BLVD, Norfolk, VA, 23529, USA
2 - Department Of Biological Sciences, Old Dominion University, Norfolk, VA, 23529-0266, USA
3 - Old Dominion University, Department of Biological Sciences, 5115 Hampton BLVD, Norfolk, VA, 23529, United States
Keywords:
none specified
Presentation Type: Oral Paper
Session: 42, Reproductive Biology
Location: 205/Savannah International Trade and Convention Center
Date: Wednesday, August 3rd, 2016
Time: 11:45 AM
Number: 42007
Abstract ID:935
Candidate for Awards:None |
