+ Site Statistics
+ Resolve Accession
+ 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
Submit PDF Full TextSubmit 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

Gibberellic acid and cytokinin affect Phalaenopsis flower morphology at high temperature

, : Gibberellic acid and cytokinin affect Phalaenopsis flower morphology at high temperature. Hortscience 32(6): 1069-1073

Gibberellin A-3 (GA,: 1, 3, or 5 mu-g/shoot), 6N-benzyladenine (BA: 1, 3, or 5 mu-g/shoot), or both were applied to the flowering shoots of a white hybrid Phalaenopsis orchid (Leda) when they were 2 to 3 cm (stage 1, no flower primordia) long at high temperature (30 degree C day/25 degree C night). When flowering shoots were treated with GA-3 alone, deformed flowers were more frequent with increasing GA-3 concentrations. The occurrence of GA-3-induced deformed flowers was prevented by BA at the same dose as GA-3 when applied 4 days after GA-3 treatment. BA (1, 3, or 5 mu-g/shoot) was also applied 4 days before (time 1) or 4 days after (time 2) GA-3 (1 mu-g/shoot) treatment for regulating plant characteristics. The application of BA at 1 or 5 mu-g/shoot to stage 1 flowering shoots at time 2 resulted in short internodes between florets, whereas BA application at time 1 had no effect. Simultaneously, BA at 1 or 5 mu-g/shoot applied at time 1 or time 2 to stage 2 (5 to 6 cm long, two- to three-flower primordia) flowering shoots also shortened internode length between florets as compared to GA-3 alone. When a stage 1 flowering shoot was given BA (3 or 5, but not 1 mu-g/shoot) and then treated with GA, 4 days later, flower count was slightly reduced as compared to treating with GA-3 alone. However, a high dose of BA applied at time 1 or time 2 on stage 2 flowering shoots had no effect on flower count. Chemical names used: N-(phenylmethyl)-1H-purine-6-amine (benzyladenine (BA)), gibberellic acid (GA-3).

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 003153830

PDF Full Text: Submit

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:

Other references

Nemoto, J.; Ohno, N.; Saito, K.; Adachi, Y.; Yadomae, T., 1993: Expression of interleukin 1 family mRNAs by a highly branched (1 fwdarw 3)-beta-D-glucan, OL-2. OL-2, a highly branched (1 fwdarw 3)-beta-D-glucan, is an antitumor glucan showing strong hematopoietic activity with weaker adjuvant activity than schizophyllan (SPG), also an antitumor glucan and one which is clinically used. This paper deals wi...

Faris, B.; Peynet, J.; Wassef, M.; Bel, A.; Mouas, C.; Duriez, M.; Menasche, P., 1997: Failure of preconditioning to improve postcardioplegia stunning of minimally infarcted hearts. Background. Ischemic preconditioning is an effective means of reducing myocardial infarct size, but its ability to attenuate stunning after an episode of surgically relevant global ischemia remains elusive. Likewise, the role played by adenosine i...

Val' kyunas, G.; Ezhova, T. A., 1990: Parasitic protozoa from the blood of birds in the USSR. Haemoproteids of Columbiformes and Coraciiformes. Haemoproteids found in birds from the Chokpaks Ornithological Station, in the Tyan-Shan foothills, Kazakhstan (USSR) are described and figured. The parasites of Columbiformes include Haemoproteus columbae in Columba livia, H. palumbis in C. palumb...

Woodward, D. E., 1983: SCS Rainfall-Runoff Model TR-55 and proposed revisions. Proposed revisions to TR-55 are discussed.

Yamaguchi, K.; Seto, K.; Takayasu, K.; Aizaki, M., 2006: Shell layers and structures in the brackish water bivalve, Corbicula japonica. Bivalve shells contain a great deal of information about the animal's growth history and local environment. Opaque and translucent layers are observed in the outer shell of Corbicula japonica. Detailed imaging with scanning electron microsco...

Vanhoutte, P.; Barnier, J.V.; Guibert, B.; Pagès, C.; Besson, M.J.; Hipskind, R.A.; Caboche, J., 1998: Glutamate induces phosphorylation of Elk-1 and CREB, along with c-fos activation, via an extracellular signal-regulated kinase-dependent pathway in brain slices. In cell culture systems, the TCF Elk-1 represents a convergence point for extracellular signal-related kinase (ERK) and c-Jun N-terminal kinase/stress-activated protein kinase (JNK/SAPK) subclasses of mitogen-activated protein kinase (MAPK) cascad...

Lechterbeck Jutta; Wolf Brozio Ulrike; Eusterhues Karin; Schneider Juergen, 1999: High resolution stratigraphy of the late glacial; the environmental history of Lake Steisslingen in a mid-European context. Journal of Conference Abstracts 4(1): 192

Wirakartakusumah, M. A.; Ahza, A. B.; Muchtadi, T. R., 1997: The development of food industries: technology application in food processing. Major food processing technology innovations, ranging from aseptic processing and packaging, minimum processed canned vegetables, freeze drying, fresh frozen products, water activity concept, fortification and UHT processes' technologies have...

Ríha, H.; Neckář, J.; Papoušek, F.; Netuka, I.; Pirk, J.; Kolář, F.; Ošťádal, B., 2012: Suppression of ischemic and reperfusion ventricular arrhythmias by inhalational anesthetic-induced preconditioning in the rat heart. Inhalational anesthetic-induced preconditioning (APC) has been shown to reduce infarct size and attenuate contractile dysfunction caused by myocardial ischemia. Only a few studies have reported the effects of APC on arrhythmias during myocardial i...

Lidz, C.W.; Appelbaum, P.S., 2002: The therapeutic misconception: problems and solutions. The therapeutic misconception occurs when a research subject fails to appreciate the distinction between the imperatives of clinical research and of ordinary treatment, and therefore inaccurately attributes therapeutic intent to research procedure...