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Effect of photoperiod on flower bud initiation and development in myoga (Zingiber mioga Roscoe)

Citation

Stirling, KJ and Clark, RJ and Brown, PH and Wilson, SJ, Effect of photoperiod on flower bud initiation and development in myoga (Zingiber mioga Roscoe), Scientia Horticulturae, 95, (3) pp. 261-268. ISSN 0304-4238 (2002) [Refereed Article]

DOI: doi:10.1016/S0304-4238(02)00038-9

Abstract

Selection of suitable production locations in Australia and New Zealand for production of myoga (Zingiber mioga Roscoe) has been limited by lack of information on climatic influences on flowering. This study focused on photoperiod as potential production sites within Australia differ considerably in daylength due to the geographical range. The two cultivars available in Australia (Inferior and Superior) were examined in this trial due to previously observed differences in vegetative and reproductive development. Plants grown under long-day conditions (16 h) and short-day conditions (8 h) with a night break produced flower buds, while those under short-day conditions (8 h) did not. The failure of plants under short-day conditions to produce flower buds was due to abortion of developing floral primordia rather than a failure to initiate inflorescences. It was concluded that for flower development in myoga a qualitative long-day requirement must be satisfied, but that flower initiation was day-neutral. Short-day conditions resulted in abortion of flower primordia, premature senescence of foliage and reduced foliage dry weight in both cultivars. Early senescence and low flower bud yield of the Inferior cultivar, but not the Superior cultivar have been observed in crop evaluation trials in Southern Australia and New Zealand. Differences in critical photoperiod between the two cultivars may explain this observation and therefore photoperiodic requirements may be an important consideration in site and planting date selection for different cultivars. © 2002 Elsevier Science B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Horticultural Production
Research Field:Horticultural Crop Growth and Development
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Horticultural Crops not elsewhere classified
Author:Stirling, KJ (Miss Kristen Stirling)
Author:Clark, RJ (Professor Robert Clark)
Author:Brown, PH (Professor Phil Brown)
Author:Wilson, SJ (Dr Stephen Wilson)
ID Code:24246
Year Published:2002
Web of Science® Times Cited:4
Deposited By:Agricultural Science
Deposited On:2002-08-01
Last Modified:2011-11-28
Downloads:0

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