Effects of chilling duration, photoperiod and temperature on floral initiation and development in sprouted and unsprouted onion bulbs
1988
SB339.A4I5
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Details
Title
Effects of chilling duration, photoperiod and temperature on floral initiation and development in sprouted and unsprouted onion bulbs
Author
Meeting Name
Imprint
Wellesbourne, Warwick Institute of Horticultural Research United Kingdom
Publication Date
1988
Description
p.254-261
Call Number
SB339.A4I5
Summary
The effects of chilling at 8 C and of subsequent photoperiod and temperature on floral initiation and development were investigated in three cultivars of onion. Four weeks of chilling at 8 C was sufficient for floral initiation in `Gladalan Brown` and `Early Long Keeper`, but the bolting-resistant cultivar `Sakigake Yellow` required 8 weeks of chilling at 8 C. With all cultivars, subsequent emergence of inflorescences was more rapid in 14h days than in 8h days, and faster at 20 C than at 15 C. There was apparent competition between leaf growth and inflorescence development in 8h days, with resultant abortion of inflorescences. At 15 C in 8h days many of the inflorescences contained bulbils or malformed florets. [AS]
Book Title
Allium symposium: EUCARPIA - section vegetables; Proceedings
Contact Information
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