EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Photon flux and leaf temperature effects on flower initiation and early development of red elite geraniums


, : Photon flux and leaf temperature effects on flower initiation and early development of red elite geraniums. Journal of the American Society for Horticultural Science 112(6): 945-950

Geranium (Pelargonium .times. hortorum Bailey 'Red Elite') seedlings were grown with five daily mean temperature (DMT) and daily light integral (DLI) treatment combinations: DMT of 23.degree.C/day at DLI of 8.64 mol .cntdot. day-1 .cntdot. m-2 (TI), DMT of 25.degree. at 8.64 mol (T2), DMT of 23.degree. at DLI of 17.28 mol, (T3) DMT of 25.degree. at DLI 17.28 mol (T4), and DMT of 21.degree. at 17.28 mol (C1). Using infrared thermometry to control leaf temperature, DMT had a greater influence on flower initiation at the transition stage and on flower bud development to macrobud stage than DLI. Seedlings in T4 reached transition stage 24 days after sowing with a cumulative irradiance of 415 mol. Transition occurred in T1 at 27 days from sowing, with a cumulative irradiance of only 233 mol. Some time after 27 days from sowing, transition occurred in T2, T3, and C1. With a DLI of 17.28 mol, a DMT reduction from 25.degree. to 23.degree. to 21.degree. effected macrobuds in 42, 56, or 62 days after sowing, respectively; whereas with a DLI of 8.64 mol, a decrease from 25.degree. to 23.degree. effected macrobuds in 54 or 51 days.


Accession: 006111137

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Karlsson, M.; Heins, R.; Erwin, J.; Berghage, R.; Carlson, W.; Biernbaum, J., 1989: Temperature and photosynthetic photon flux influence chrysanthemum shoot development and flower initiation under short-day conditions. The effects of photosynthetic photon flux (PPF), day temperature (DT) and night temperature (NT) on leaf number, leaf unfolding rate and shoot length were determined for chrysanthemum (Dendranthema grandiflora Tzvelev. 'Bright Golden Anne&apo...

Osanai, Y.; Okamoto, M.; Obara, N., 1990: The time of flower bud initiation and the effects of light and temperature on the development of flower buds in apple cultivar 'Fuji'. Longitudinal sections of buds collected about every 5 days from mid-June to Nov. in 1984-87 showed that the change from the vegetative to the reproductive meristem began in mid-July. Reduction of light intensity by 50% during June, July or Aug. in...

Jones, J.B.; Raju, B.C.; Engelhard, A.W., 1984: Effects of temperature and leaf wetness on development of bacterial spot of geraniums and chrysanthemums incited by Pseudomonas cichorii. Florida Marble and Polaris chrysanthemum stems and leaves and Sprinter Scarlet Pelargonium leaves were inoculated with P. cichorii. The number and size of lesions increased when temps. were increased from 16 to 28 degrees C but were greatly inhibi...

Mori, G.; Sakanishi, Y., 1988: Effects of temperature on flower initiation and leaf emergence in Lycoris radiata and L. squamigera. Bulbs of L. radiata and L. squamigera lifted from the field in July did not initiate flower buds if they were moved from natural conditions into a warm greenhouse (> 20 degrees C) on or before 20 Dec. and 20 Feb., respectively. Of bulbs grown a...

Bielenberg, D.G.; Miller, J.D.; Berg, V.S., 2003: Paraheliotropism in two Phaseollus species: combined effects of photon flux density and pulvinus temperature, and consequences for leaf gas exchange. Environmental and Experimental Botany 49(2): 105

Bielenberg, D.G.; Miller, J.D.; Berg, V.S., 2003: Paraheliotropism in two Phaseolus species: combined effects of photon flux density and pulvinus temperature, and consequences for leaf gas exchange. Phaseolus species exhibit paraheliotropic (light-avoiding) leaf movements in response to environmental stimuli. We investigated the response of two ecologically contrasting species, Phaseolus vulgaris (mesic) and Phaseolus acutifolius (xeric), to...

Jones J.B.; Raju B.C.; Engelhard A.W., 1984: Effects of temperature and leaf wetness on development of bacterial spot of geraniums pelargonium hortorum and chrysanthemums chrysanthemum morifolium incited by pseudomonas cichorii. 'Florida Marble' and 'Polaris' chrysanthemum stems and leaves and 'Sprinter Scarlet' geranium leaves were inoculated with P. cichorii. The number and size of lesions of bacterial spot of chrysanthemum leaves and stems...

Cockshull, K.; Hand, D.; Langton, F., 1982: The effects of day and night temperature on flower initiation and development in Chrysanthemum. Acta Horticulturae: (125) 101-110

Runger, W.; Wehr, B., 1971: The effects of day length and temperature on flower initiation and development in Primula malacoides. The cv. Schneewittchen was used in most of the experiments reported but some data are also presented for Saturn, Neurosa, Merkur and Blutrot. Seedlings, about 3 to 4 months old, were subjected to short- and long-day treatments. Short-day treatment...

Mori, G.; Kawabata, H.; Imanishi, H.; Sakanishi, Y., 1991: Effects of temperature on flower initiation and development in Leucojum aestivum L. and L. autumnale L. Flower initiation and development were more rapid as the temperature increased from 10 degrees to 25 degrees C but exposure to 30 degrees delayed development in both species. In L. autumnale, flower development from carpel formation ceased at 10 d...