Flowering and flooding: factors influencing shoot production in a semelparous bamboo

Hogarth N. J., . and Franklin D. C., . Flowering and flooding: factors influencing shoot production in a semelparous bamboo. pp. 188-192. ISSN 0128-1283

Culm recruitment by semelparous bamboos has been reported to be severely depressed in the year prior to flowering providing forewarning of flowering and subsequent die-off. However supporting data are scant. We monitored productivity in 30 clumps in a wild stand of the riparian bamboo Bambusa arnhemica for four years following which the clumps flowered and died. Stand-level productivity in the year prior to flowering was a minimum of 78 lower than previous years. However the rate of depression was unevenly distributed being close to 100 among clumps lower on the river bank and no more than 50 higher on the bank. This may be due to the impact of early and prolonged flooding in that year. Clumps high on the bank may have benefited from favourable conditions associated with above average wet season rainfall raising the possibility that resource allocation to vegetative growth and sexual reproduction in semelparous bamboos is flexible.

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Abstract

Culm recruitment by semelparous bamboos has been reported to be severely depressed in the year prior to flowering providing forewarning of flowering and subsequent die-off. However supporting data are scant. We monitored productivity in 30 clumps in a wild stand of the riparian bamboo Bambusa arnhemica for four years following which the clumps flowered and died. Stand-level productivity in the year prior to flowering was a minimum of 78 lower than previous years. However the rate of depression was unevenly distributed being close to 100 among clumps lower on the river bank and no more than 50 higher on the bank. This may be due to the impact of early and prolonged flooding in that year. Clumps high on the bank may have benefited from favourable conditions associated with above average wet season rainfall raising the possibility that resource allocation to vegetative growth and sexual reproduction in semelparous bamboos is flexible.

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Item Type:	Article
AGROVOC Term:	Flowering
AGROVOC Term:	Flooding
AGROVOC Term:	Shoots
AGROVOC Term:	Bamboos
AGROVOC Term:	Bambusa
AGROVOC Term:	Riparian vegetation
AGROVOC Term:	Culms
AGROVOC Term:	Wet season
AGROVOC Term:	Sexual reproduction
AGROVOC Term:	Floods (inundations)
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/21736

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