Standard

Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii). / Christiaens, Annelies; Lootens, Peter; Roldán-Ruiz, Isabel; Pauwels, Els; Gobin, Bruno; Van Labeke, Marie-Christine.

In: Scientia Horticulturae, Vol. 177, 12.08.2014, p. 1-9.

Research output: Contribution to journalA1: Web of Science-article

Harvard

Christiaens, A, Lootens, P, Roldán-Ruiz, I, Pauwels, E, Gobin, B & Van Labeke, M-C 2014, 'Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii)', Scientia Horticulturae, vol. 177, pp. 1-9.

APA

Christiaens, A., Lootens, P., Roldán-Ruiz, I., Pauwels, E., Gobin, B., & Van Labeke, M-C. (2014). Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii). Scientia Horticulturae, 177, 1-9.

Vancouver

Christiaens A, Lootens P, Roldán-Ruiz I, Pauwels E, Gobin B, Van Labeke M-C. Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii). Scientia Horticulturae. 2014 Aug 12;177:1-9.

Author

Christiaens, Annelies ; Lootens, Peter ; Roldán-Ruiz, Isabel ; Pauwels, Els ; Gobin, Bruno ; Van Labeke, Marie-Christine. / Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii). In: Scientia Horticulturae. 2014 ; Vol. 177. pp. 1-9.

Bibtex

@article{a20f7e9c45874f15a0a602708588c0b4,
title = "Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii)",
abstract = "Forcing of florist azalea is a relative short, though important step in the production cycle of this ornamental. This phase determines the flowering quality which is important for the economic value of theplant. Forcing is performed inside heated greenhouses (21 ◦C), and application of supplemental light is increasing in popularity among growers. Optimizing the use of supplemental light is essential tominimize energy costs. Here, the minimum daily light integral (DLI) needed to balance photosynthesis and respiration for two rhododendron simsii cultivars was determined. Whole-plant net CO2 exchange measurements resulted in a minimum DLI for photosynthesis of 2.1 mol m−2 d−1 for the early-flowering cultivar ‘Nordlicht’ and of 1.7 mol m−2 d−1 for the late-flowering cultivar ‘Thesla’. Increasing the forcing temperature by 6 ◦C resulted in a 72{\%} increase of the minimum DLI for photosynthesis of ‘Thesla’. The developmental stage of the flower buds had no effect on the minimum DLI. Further, forcing experiments showed that to obtain a high-quality flowering plant, this minimum DLI for photosynthesis must be raised by at least 57{\%}.",
author = "Annelies Christiaens and Peter Lootens and Isabel Rold{\'a}n-Ruiz and Els Pauwels and Bruno Gobin and {Van Labeke}, Marie-Christine",
year = "2014",
month = "8",
day = "12",
language = "English",
volume = "177",
pages = "1--9",
journal = "Scientia Horticulturae",
issn = "0304-4238",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Determining the minimum daily light integral for forcing of azalea (Rhododendron simsii)

AU - Christiaens, Annelies

AU - Lootens, Peter

AU - Roldán-Ruiz, Isabel

AU - Pauwels, Els

AU - Gobin, Bruno

AU - Van Labeke, Marie-Christine

PY - 2014/8/12

Y1 - 2014/8/12

N2 - Forcing of florist azalea is a relative short, though important step in the production cycle of this ornamental. This phase determines the flowering quality which is important for the economic value of theplant. Forcing is performed inside heated greenhouses (21 ◦C), and application of supplemental light is increasing in popularity among growers. Optimizing the use of supplemental light is essential tominimize energy costs. Here, the minimum daily light integral (DLI) needed to balance photosynthesis and respiration for two rhododendron simsii cultivars was determined. Whole-plant net CO2 exchange measurements resulted in a minimum DLI for photosynthesis of 2.1 mol m−2 d−1 for the early-flowering cultivar ‘Nordlicht’ and of 1.7 mol m−2 d−1 for the late-flowering cultivar ‘Thesla’. Increasing the forcing temperature by 6 ◦C resulted in a 72% increase of the minimum DLI for photosynthesis of ‘Thesla’. The developmental stage of the flower buds had no effect on the minimum DLI. Further, forcing experiments showed that to obtain a high-quality flowering plant, this minimum DLI for photosynthesis must be raised by at least 57%.

AB - Forcing of florist azalea is a relative short, though important step in the production cycle of this ornamental. This phase determines the flowering quality which is important for the economic value of theplant. Forcing is performed inside heated greenhouses (21 ◦C), and application of supplemental light is increasing in popularity among growers. Optimizing the use of supplemental light is essential tominimize energy costs. Here, the minimum daily light integral (DLI) needed to balance photosynthesis and respiration for two rhododendron simsii cultivars was determined. Whole-plant net CO2 exchange measurements resulted in a minimum DLI for photosynthesis of 2.1 mol m−2 d−1 for the early-flowering cultivar ‘Nordlicht’ and of 1.7 mol m−2 d−1 for the late-flowering cultivar ‘Thesla’. Increasing the forcing temperature by 6 ◦C resulted in a 72% increase of the minimum DLI for photosynthesis of ‘Thesla’. The developmental stage of the flower buds had no effect on the minimum DLI. Further, forcing experiments showed that to obtain a high-quality flowering plant, this minimum DLI for photosynthesis must be raised by at least 57%.

M3 - A1: Web of Science-article

VL - 177

SP - 1

EP - 9

JO - Scientia Horticulturae

JF - Scientia Horticulturae

SN - 0304-4238

ER -