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Flowering time as influenced by nitrate fertilisation in Ruppia drepanensis Tineo

Santamaria, L. and Hootsmans, M. and Van Vierssen, W. (1995) Flowering time as influenced by nitrate fertilisation in Ruppia drepanensis Tineo. Aquatic Botany, 52, 45-58. ISSN 0304-3770.

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Official URL: http://dx.doi.org/10.1016/0304-3770(95)00486-J

Abstract

In a laboratory experiment, Ruppia drepanensis Tineo seedlings from a brackish marsh in southern Spain were grown with and without potassium nitrate (1.4 g N m(-2) week(-1) added to the water column), both under nutrient-rich (clay:sand mixture) and nutrient-poor (sand) sediment conditions. Potassium nitrate fertilisation delayed flower initiation within both types of sediment, but it also resulted in increased flower abundance under nutrient-poor sediment conditions. Differences between plants in flower production were positively correlated with the above- to belowground biomass ratio, We thus propose that nutrient supply and biomass allocation should be incorporated in the age- and size-dependent models for plant reproductive effort. These models should also consider separately the induction of flowering and the production of flowers (flower abundance). [KEYWORDS: RUPPIA DREPANENSIS, NITRATE FERTILIZATION, FLOWERING TIME]

Item Type:Article
Institutes:Nederlands Instituut voor Ecologie (NIOO)
ID Code:10348
Deposited On:25 Nov 2011 01:00
Last Modified:31 Mar 2014 11:08

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