Impact of end-of-day red and far-red light on plant morphology and hormone physiology of poinsettia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33152681" target="_blank" >RIV/61989592:15310/14:33152681 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389030:_____/14:00432724

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0304423814002672" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0304423814002672</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.scienta.2014.05.013" target="_blank" >10.1016/j.scienta.2014.05.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of end-of-day red and far-red light on plant morphology and hormone physiology of poinsettia

Popis výsledku v původním jazyce

Control of morphology is essential in greenhouse production of poinsettia, which is among the largest and economically most important ornamental pot plant cultures worldwide. Plant growth regulators are used to reduce shoot elongation but due to their potentially negative impacts on human health and the environment, it is highly desirable to replace these. Exploiting responses to light quality as an alternative has been investigated to a limited extent only in poinsettia and information about elongation-controlling hormones is scarce. In natural light an increased far-red (FR) proportion at the end of the day (EOD) is known to enhance shoot elongation in several species through action of phytochrome on hormone metabolism. The aim of this study was to assess the effect of manipulation of the phytochrome system at the EOD on elongation growth and hormone metabolism in poinsettia. Depending on cultivar, shoot elongation and internode lengths were reduced 34-54% by exposure to 30 min EOD-R

Název v anglickém jazyce

Impact of end-of-day red and far-red light on plant morphology and hormone physiology of poinsettia

Popis výsledku anglicky

Control of morphology is essential in greenhouse production of poinsettia, which is among the largest and economically most important ornamental pot plant cultures worldwide. Plant growth regulators are used to reduce shoot elongation but due to their potentially negative impacts on human health and the environment, it is highly desirable to replace these. Exploiting responses to light quality as an alternative has been investigated to a limited extent only in poinsettia and information about elongation-controlling hormones is scarce. In natural light an increased far-red (FR) proportion at the end of the day (EOD) is known to enhance shoot elongation in several species through action of phytochrome on hormone metabolism. The aim of this study was to assess the effect of manipulation of the phytochrome system at the EOD on elongation growth and hormone metabolism in poinsettia. Depending on cultivar, shoot elongation and internode lengths were reduced 34-54% by exposure to 30 min EOD-R

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Sciencia Horticulturae

ISSN

0304-4238

e-ISSN

—

Svazek periodika

174

Číslo periodika v rámci svazku

JUL 22 2014

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

77-86

Kód UT WoS článku

000340312300011

EID výsledku v databázi Scopus

—