Irradiance, temperature, and carbon dioxide enrichment affect photosynthesis in Phalaenopsis hybrids

Peter Lootens; J Heursel

Irradiance, temperature, and carbon dioxide enrichment affect photosynthesis in Phalaenopsis hybrids

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The short-term effects of photosynthetic photon flux (PPF), day/night temperatures and CO₂ concentration on CO₂ exchange were determined for two Phalaenopsis hybrids. At 20 °C, the saturating PPF for photosynthesis was 180 µmol.m^-2.s^-1. At this PPF and ambient CO₂ level (380 µL.L^-1), a day/night temperature of 20/15°C resulted in the largest daily CO₂ uptake. Higher night temperatures probably increased the respiration rate and lowered daily CO2 uptake in comparison with 20/15°C. An increase in the CO₂ concentration from 380 to 950 µL.L^-1 increased daily CO₂ uptake by 82%.

Oorspronkelijke taal	Engels
Tijdschrift	Hortscience
Volume	33
Exemplaarnummer	7
Pagina's (van-tot)	1183-1185
Aantal pagina’s	3
ISSN	0018-5345
Publicatiestatus	Gepubliceerd - 1998

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title = "Irradiance, temperature, and carbon dioxide enrichment affect photosynthesis in Phalaenopsis hybrids",

abstract = "The short-term effects of photosynthetic photon flux (PPF), day/night temperatures and CO2 concentration on CO2 exchange were determined for two Phalaenopsis hybrids. At 20 °C, the saturating PPF for photosynthesis was 180 µmol.m-2.s-1. At this PPF and ambient CO2 level (380 µL.L-1), a day/night temperature of 20/15°C resulted in the largest daily CO2 uptake. Higher night temperatures probably increased the respiration rate and lowered daily CO2 uptake in comparison with 20/15°C. An increase in the CO2 concentration from 380 to 950 µL.L-1 increased daily CO2 uptake by 82%.",

author = "Peter Lootens and J Heursel",

year = "1998",

language = "English",

volume = "33",

pages = "1183--1185",

journal = "Hortscience",

issn = "0018-5345",

publisher = "American Society for Horticultural Science",

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TY - JOUR

T1 - Irradiance, temperature, and carbon dioxide enrichment affect photosynthesis in Phalaenopsis hybrids

AU - Lootens, Peter

AU - Heursel, J

PY - 1998

Y1 - 1998

N2 - The short-term effects of photosynthetic photon flux (PPF), day/night temperatures and CO2 concentration on CO2 exchange were determined for two Phalaenopsis hybrids. At 20 °C, the saturating PPF for photosynthesis was 180 µmol.m-2.s-1. At this PPF and ambient CO2 level (380 µL.L-1), a day/night temperature of 20/15°C resulted in the largest daily CO2 uptake. Higher night temperatures probably increased the respiration rate and lowered daily CO2 uptake in comparison with 20/15°C. An increase in the CO2 concentration from 380 to 950 µL.L-1 increased daily CO2 uptake by 82%.

AB - The short-term effects of photosynthetic photon flux (PPF), day/night temperatures and CO2 concentration on CO2 exchange were determined for two Phalaenopsis hybrids. At 20 °C, the saturating PPF for photosynthesis was 180 µmol.m-2.s-1. At this PPF and ambient CO2 level (380 µL.L-1), a day/night temperature of 20/15°C resulted in the largest daily CO2 uptake. Higher night temperatures probably increased the respiration rate and lowered daily CO2 uptake in comparison with 20/15°C. An increase in the CO2 concentration from 380 to 950 µL.L-1 increased daily CO2 uptake by 82%.

M3 - A1: Web of Science-article

SN - 0018-5345

VL - 33

SP - 1183

EP - 1185

JO - Hortscience

JF - Hortscience

IS - 7

ER -

Irradiance, temperature, and carbon dioxide enrichment affect photosynthesis in Phalaenopsis hybrids

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