The Effect of Plant Maturity and Cooling Duration on Flowering and Plant Habits of Pycnosorus thompsonianus under Short Days

Authors

  • Tuan Minh Ha Thai Nguyen University of Agriculture and Forestry, Thai Nguyen city, Vietnam.

Keywords:

Short days, Cooling, Anthesis, Growth habit, Australian native species.

Abstract

As a potential Australian native flower species, Pycnosorus thompsonianus was selected to study the effects of chilling duration and ages at chilling on its plant growth habit and subsequent flowering in southern Queensland during September 2009 to March 2010. Seedlings of four age groups (1, 7, 14, 28 days old) were exposed to different cooling periods (0, 3, 7, 14 and 21 days) at 20/10°C under short days (11h). The species was found to have a facultative requirement for flowering in response to low temperature. Generally, the growth and flowering were enhanced in accordance with the increase of seedling ages and cooling duration under short-day condition. Further studies on the effects of chilling duration on flowering of P. thompsonianus are necessary to develop a production guideline for commercial production.

 

Author Biography

Tuan Minh Ha, Thai Nguyen University of Agriculture and Forestry, Thai Nguyen city, Vietnam.

Faculty of Agronomy, Thai Nguyen University of Agriculture & Forestry, Thai Nguyen city, Vietnam.

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Published

2014-06-14

How to Cite

Ha, T. M. (2014). The Effect of Plant Maturity and Cooling Duration on Flowering and Plant Habits of Pycnosorus thompsonianus under Short Days. Asian Journal of Agriculture and Food Sciences, 2(3). Retrieved from https://www.ajouronline.com/index.php/AJAFS/article/view/1270

Issue

Vol. 2 No. 3 (2014): June 2014

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