Abstract
The influence of light incubation during embryo germination on shoot organogenesis from cotyledons of four diploid watermelon [Citrullus lanatus (Thumb.) Matsum. & Nakai cultivars was examined. Germinating embryos in darkness significantly improved the number of explants that produced harvestable shoots during the 6 week incubation period on shoot regeneration medium under a 16-h photoperiod. The percentage of explants with shoots more than doubled for `Crimson Sweet' and was about 1.5-fold greater for `Sweet Gem' and `Yellow Doll' when embryos were germinated in darkness. The percentage of explants with shoots was not significantly improved for `Minilee' by pretreating seedlings in darkness. This study demonstrates that optimal shoot regeneration can be obtained by germinating embryos in darkness before preparing cotyledon explants.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
