Flowering time as influenced by nitrate fertilisation in Ruppia drepanensis Tineo

TY - JOUR

T1 - Flowering time as influenced by nitrate fertilisation in Ruppia drepanensis Tineo

AU - Santamaria, L.

AU - Hootsmans, M.

AU - Van Vierssen, W.

N1 - Reporting year: 1995 Metis note: 2086; CL; PDI; file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1995/Santamaria_ea_2086.pdf

PY - 1995

Y1 - 1995

N2 - 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]

AB - 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]

U2 - 10.1016/0304-3770(95)00486-J

DO - 10.1016/0304-3770(95)00486-J

M3 - Article

VL - 52

SP - 45

EP - 58

JO - Aquatic Botany

JF - Aquatic Botany

SN - 0304-3770

IS - 1-2

ER -