The Effect of Day and Night Temperature and Irradiance on Development of Catharanthus roseus (L.) `Grape Cooler'

Pietsch, Grace M.; Carlson, William H.; Heins, Royal D.; Faust, James E.

doi:10.21273/jashs.120.5.877

Cited by 18 publications

(17 citation statements)

References 14 publications

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“…Similarly, flowering time was controlled by MDT and not DIF in pinnate dahlia (Dahlia pinnata Cav. ; Brøndum and Heins, 1993), pansy (Niu et al, 2000), and vinca (Catharanthus roseus L.; Pietsch et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

The Influence of Day and Night Temperature Fluctuations on Growth and Flowering of Annual Bedding Plants and Greenhouse Heating Cost Predictions

Blanchard¹,

Runkle²

2011

horts

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Volatile energy costs and lower profit margins have motivated many greenhouse growers in temperate climates to improve the energy efficiency of crop production. We performed experiments with dahlia (Dahlia ×hybrida Cav. ‘Figaro Mix’), French marigold (Tagetes patula L. ‘Janie Flame’), and zinnia (Zinnia elegans Jacq. ‘Magellan Pink’) to quantify the effects of constant and fluctuating temperatures on growth and flowering during the finish stage. Plants were grown in glass-glazed greenhouses with a day/night (16 h/8 h) temperature of 20/14, 18/18, 16/22 (means of 18 °C), 24/18, 22/22, or 20/26 °C (means of 22 °C) with a 16-h photoperiod and under a photosynthetic daily light integral of 11 to 19 mol·m−2·d−1. Flowering times of dahlia, French marigold, and zinnia (Year 2 only) were similar among treatments with the same mean daily air temperature (MDT). All species grown at 20/14 °C were 10% to 41% taller than those grown at 16/22 °C. Crop timing data and computer software that estimates energy consumption for heating (Virtual Grower) were then used to estimate energy consumption for greenhouse heating on a per-crop basis. Energy costs to produce these crops in Charlotte, NC, Grand Rapids, MI, and Minneapolis, MN, for a finish date of 15 Apr. or 15 May and grown at the same MDT were estimated to be 3% to 42% lower at a +6 °C day/night temperature difference (DIF) compared with a 0 °C DIF and 2% to 90% higher at a −6 °C DIF versus a 0 °C DIF. This information could be used by greenhouse growers to reduce energy inputs for heating on a per-crop basis.

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Section: Discussionmentioning

confidence: 99%

The Influence of Day and Night Temperature Fluctuations on Growth and Flowering of Annual Bedding Plants and Greenhouse Heating Cost Predictions

Blanchard¹,

Runkle²

2011

horts

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“…Within the observed temperature and DLI ranges, a maximal rate of development (i.e., greatest rate of progress toward fl owering) was observed for celosia at ≈25 °C and impatiens at ≈26 °C, above which a further increase in temperature did not accelerate fl owering. These Table 1. temperatures are higher than the maximal temperature for pansy (Viola ×wittrockiana Gams., 22 °C) and dahlia (Dahlia pinnata Cav., 24 °C), similar to that reported in petunia (Petunia ×hybrida Vilm.-Andr., 25 °C) and lower than that for vinca (Catharanthus roseus L., 35 °C) (Adams et al, 1997;Brøndum and Heins, 1993;Kaczperski et al, 1991;Pietsch et al, 1995). The base temperature of a plant is usually estimated as the air temperature at which the rate of plant development is zero.…”

Section: Discussionmentioning

confidence: 99%

“…ex Klotzsch) model predicted that shoot-tip temperature increases linearly by 0.67 °C for every 100 W·m -2 increase in radiation, holding other environmental parameters constant (Shimizu et al, 2004). In vinca, the calculated base temperature was 10 °C when plants were grown in a greenhouse with 50% shadecloth and 12 °C without shadecloth (Pietsch et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Modeling Growth and Development of Celosia and Impatiens in Response to Temperature and Photosynthetic Daily Light Integral

Pramuk¹,

Runkle²

2005

jashs

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Commercial greenhouse growers often produce bedding plants from midwinter to early summer, and thus crops are grown under a wide range of environmental conditions. Despite bedding plants' high economic value, the interactions of temperature and photosynthetic daily light integral (DLI) on growth and flowering have not been determined for many bedding plants. We grew celosia (Celosia argentea L. var. plumosa L.) and seed impatiens (Impatiens wallerana Hook.f.) in glass greenhouses in a range of temperature (15 to 27 °C) and DLI (8 to 26 mol·m-2·d-1) conditions to quantify effects on growth and flowering. Growth (e.g., plant dry mass at flowering) and flowering characteristics (e.g., time to flowering and flower bud number) were modeled in response to the average daily temperature and DLI by using multiple regression analysis. Rate of progress to flowering (1/days to flower) of celosia increased as temperature increased up to ≈25 °C and as the average DLI increased to 15 ·mol·m-2·d-1. Impatiens grown under a DLI <15 mol·m-2·d-1 flowered progressively earlier as temperature increased from 14 to 28 °C, whereas temperature had little effect on flowering time when plants were grown under the highest DLI treatments. Number of flowers and flower buds at first flowering increased in both species as temperature decreased or DLI increased. Shoot dry mass at first flowering followed a similar trend, except celosia dry mass decreased as temperature decreased. The models developed to predict flowering time and plant quality could be used by commercial growers to determine the impacts of changing growing temperature, growing plants at different times of the year, and providing supplemental lighting.

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“…Days to flower of petunia decreased from 67 to 56 d as DLI increased from 6.5 to 13.0 molÁm -2 Ád -1 at 20°C (Kaczperski et al, 1991). A higher DLI increased flower number and size in vinca (Pietsch et al, 1995) and petunia (Kaczperski et al, 1991). In impatiens (Impatiens wallerana L.), plants grown under a DLI of 12 molÁm -2 Ád -1 had 2.9 more and 0.5 cm larger flowers compared with plants under 5 molÁm -2 Ád -1 (Faust et al, 2005).…”

mentioning

confidence: 91%

Photosynthetic Daily Light Integral Influences Flowering Time and Crop Characteristics of Cyclamen persicum

Oh¹,

Cheon²,

Kim³

et al. 2009

horts

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This study was carried out to examine the effect of photosynthetic daily light integral (DLI) on the growth and flowering of cyclamen (Cyclamen persicum Mill. ‘Metis Scarlet Red’). Plants with six fully unfolded leaves were grown at 24/16 °C (12 h/12 h) under an 8- or 16-h photoperiod at a photosynthetic photon flux of 50, 100, 150, 200, and 300 μmol·m−2·s−1, which provided seven DLIs: 1.4, 2.9, 4.3, 5.8, 8.6, 11.5, and 17.3 mol·m−2·d−1. Days to first flower decreased from 133 to 75 as DLI increased from 1.4 to 17.3 mol·m−2·d−1, although the acceleration of flowering was less pronounced when the DLI was greater than 5.8 mol·m−2·d−1. Mean leaf and flower number increased from 8.7 to 28.0 and from 0 to 14.7, respectively, as DLI increased from 1.4 to 11.5 mol·m−2·d−1, but there was no further increase under a DLI of 17.3 mol·m−2·d−1. Total dry weight and net photosynthetic rate showed a similar trend as leaf and flower number. We conclude that supplemental lighting can accelerate greenhouse production of potted cyclamen under a low ambient DLI (i.e., less than 12 mol·m−2·d−1).

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The Effect of Day and Night Temperature and Irradiance on Development of Catharanthus roseus (L.) `Grape Cooler'

Cited by 18 publications

References 14 publications

The Influence of Day and Night Temperature Fluctuations on Growth and Flowering of Annual Bedding Plants and Greenhouse Heating Cost Predictions

The Influence of Day and Night Temperature Fluctuations on Growth and Flowering of Annual Bedding Plants and Greenhouse Heating Cost Predictions

Modeling Growth and Development of Celosia and Impatiens in Response to Temperature and Photosynthetic Daily Light Integral

Photosynthetic Daily Light Integral Influences Flowering Time and Crop Characteristics of Cyclamen persicum

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