Abstract
Amur adonis (Adonis amurensis) was used for the study of PGRs responses on the dormancy breaking and flowering. All plant treated with GA3 or GA4+7 showed earlier sprouting by breaking the dormancy and resulted to fast flowering, irrespective of concentration. Plant height and the number of nodes tent to be increased by GAs application on dormant plant. Among the different kinds of GA treatments, GA4+7 was most effective in dormancy breaking and flower emergence with the effect of higher plant height and increased node number rather than GA3. However, GA4+7 showed several disadvantages such as reducing the flowering rate and induced the overgrowth that resulting in stretched weak plants. Beside GA, cytokinins such as TDZ showed clear effect of dormancy breaking but, other cytokinins such as BAP and Kinetin showed no clear positive effects in breaking the dormancy. Dormant amur adonis treated with BAP and Kinetin flowered without leaf emergency and subsequent shoot growth resulted in showing abnormal flowering and growth, but it treated with TDZ showed the normal flowering with shoot growth, but flowering percentage was very low. In conclusion, we could recommend that 100–500 mg·L−1 GA3 application as an alternative method to chilling treatment for breaking dormancy and normal flowering of A. amurensis. And we could also recommend 20 or 50 mg·L−1 TDZ for the dormancy break and subsequent shoot growth, but not for flowering.
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.
