Levels of physiological dormancy and methods for improving seed germination of four rose species

► We compare germination and dormancy level of four rose species. ► Single treatments are less effective to break dormancy than their combinations. ► H 2SO 4 scarification followed by warm plus cold stratification is most effective. ► Dormancy level is Rosa hugonis > Rosa sericea > Rosa filipe...

Full description

Saved in:
Bibliographic Details
Published in:Scientia horticulturae 2011-07, Vol.129 (4), p.818-824
Main Authors: Zhou, Zhiqiong, Bao, Weikai
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
H 2SO 4 scarification
Physiological dormancy
Rosa
Seed germination
Stratification
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:► We compare germination and dormancy level of four rose species. ► Single treatments are less effective to break dormancy than their combinations. ► H 2SO 4 scarification followed by warm plus cold stratification is most effective. ► Dormancy level is Rosa hugonis > Rosa sericea > Rosa filipes > Rosa multibracteata. Low seed germination is a major problem in commercial rose propagation and breeding and is species-dependent. The present work selected four rose species previously un-examined to explore effective methods for improving seed germination and the relevant dormancy mechanism and its levels in seven experiments. The results showed that both pulp and achenes from the four rose shrubs had chemical substances that significantly inhibited seed germination with the inhibitory effect was more pronounced in pulp extract than of achenes. Single treatments of H 2SO 4 scarification, short-term cold stratification ( R. sericea > R. filipes > R. multibracteata.
ISSN:0304-4238
1879-1018
DOI:10.1016/j.scienta.2011.04.024