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Towards a physiological understanding of juvenility, a strategic element in scheduling seed-raised ornamentals - HH1331SPC

Description

Seedlings are often incapable of flowering; they must first attain a given size or age before they can be induced to flower. This early phase of development has been termed the ‘juvenile’ phase. The objective of this research is to study the critical factors determining completion of the juvenile phase, so as to explore the physiological basis of the response, while at the same time identifying markers for the end of this phase. Physiological markers, or possibly in the longer term molecular markers, could then be used by growers to indicate when the production environment should be manipulated to favour floral initiation and should markedly improve the accuracy of scheduling and the grower’s ability to meet market demand. This research which will underpin the development of MAFF’s policy for a sustainable flower crop industry.

Objective

1. To quantify how light integral, temperature and CO2 concentration affect the length of the photoperiod-insensitive juvenile phase using Antirrhinum as a model species.

2. To identify physiological markers associated with the end of the photoperiod-insensitive juvenile phase.

3. To explore whether CEN and FLO gene expression would be suitable molecular markers for the end of the juvenile phase and flower commitment in Antirrhinum.

Project Documents
• Final Report : Towards a physiological understanding of juvenility, a strategic element in scheduling seed-raised ornamentals   (2862k)
Time-Scale and Cost
From: 2000

To: 2004

Cost: £419,459
Contractor / Funded Organisations
Horticulture Research International
Keywords
Biotechnology              
Farming              
Horticulture              
Ornamentals              
Others              
Quality              
Fields of Study
Horticulture
Horticulture