Effect of Cooling Treatment Duration on Biological Traits and Propagation of Tulip(PDF)
《北方园艺》[ISSN:1001-0009/CN:23-1247/S]
- Issue:
- 2019年01
- Page:
- 103-109
- Research Field:
- Publishing date:
Info
- Title:
- Effect of Cooling Treatment Duration on Biological Traits and Propagation of Tulip
- Author(s):
- ZHANG Yanqiu1; XING Guimei1; CUI Yuehan1; DAI Yong2; YANG Di3; QU Lianwei1
- (1.Institute of Floriculture,Liaoning Academy of Agricultural Sciences,Shenyang,Liaoning 110161；2.Fushun Agriculture Technology Extension and Service Center,Fushun,Liaoning 113006；3.College of Landscape Architecture,Northeast Forestry University,Harbin,Heilongjiang 150040)
- Keywords:
- tulip; biological traits; propagation coefficient; cooling treatment
- PACS:
- -
- DOI:
- 10.11937/bfyy.20180308
- Abstract:
- Bulbs of cultivars ‘World Favorite’ and ‘Huangyu’ were used as materials and the effect of cooling treatment duration on biological traits and propagation were studied using cooling treatment method in order to verify the minimum cooling requirement of different tulip cautivars and provide theoretical basis for the year-round production of potted and cut flower in tulip.The results showed that ‘World Favorite’ could not flower when bulbs were treated by low temperature with 0 or 2 weeks.The flowering rates were 63.3%,80.0% and 93.3% for 4,6 and 8 weeks,respectively.The flowering rate was 100.0% for both 10 and 12 weeks,indicating 10-week cooling treatment was the minimum cooling duration requirement for ‘World Favorite’.‘Huangyu’ could not flower when bulbs were treated by low temperature with 0,2 or 4 weeks.The flowering rates were 73.3% and 83.3% for 6 and 8 weeks,respectively.However,the flowering rates were not significantly different between 10 and 12 weeks with the rates of 96.7% and 100.0%,respectively,which indicated 10-week cooling treatment was the minimum cooling duration requirement for ‘Huangyu’.Cooling treatment not only could shorten the tulip growth cycle and improve the qualities of biological traits,but also could promote the formation and development of new bulblets.With the extension of cooling treatment duration,the bulb propagation coefficient increased from 2.1 to 4.2 for ‘World Favorite’ and from 2.4 to 4.4 for ‘Huangyu’,respectively.But for the two tulip cultivars tested in this study,there was no significant difference in flowering,biological traits and bulb propagation coefficient between 10 and 12 weeks.
Last Update: 2019-01-23