Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions

The effect of water stress on germination of radish seeds is dependent on the presence of light. The effect of pelletization of radish seeds with powdered graphite on the tolerance to water stress under light was analysed. White light and far-red lights were filtered by graphite increasing slightly...

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Main Authors: Nobel Penteado Freitas, Massanori Takaki
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2000-01-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500016
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author Nobel Penteado Freitas
Massanori Takaki
author_facet Nobel Penteado Freitas
Massanori Takaki
author_sort Nobel Penteado Freitas
collection DOAJ
description The effect of water stress on germination of radish seeds is dependent on the presence of light. The effect of pelletization of radish seeds with powdered graphite on the tolerance to water stress under light was analysed. White light and far-red lights were filtered by graphite increasing slightly the tolerance of pelleted seeds to water stress of -0.77MPa. Although red light also inhibited seed germination the graphite had no effect. We propose the pelletization of seeds of Raphanus sativus, at least in cv redondo gigante with graphite as a pratice before planting to increase the tolerance to water stress.<br>O efeito do estresse hídrico é dependente da presença de luz em sementes de rabanete. O efeito da peletização com grafite em pó foi analisado. Luz branca e vermelho-extremo são filtradas pelo grafite aumentando parcialmente a tolerância ao estresse hídrico de -0,77MPa em sementes peletizadas. Embora a luz vermelha também iniba a germinação em condições de estresse a peletização não teve efeito. Nós propomos a peletização de sementes de Raphanus saivus L. cv. redondo gigante como uma prática antes do plantio para aumentar a tolerância ao estresse hídrico.
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spelling doaj.art-10bb026b519f411cac842c215cbaf54e2022-12-21T17:14:29ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242000-01-0143554755010.1590/S1516-89132000000500016Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditionsNobel Penteado FreitasMassanori TakakiThe effect of water stress on germination of radish seeds is dependent on the presence of light. The effect of pelletization of radish seeds with powdered graphite on the tolerance to water stress under light was analysed. White light and far-red lights were filtered by graphite increasing slightly the tolerance of pelleted seeds to water stress of -0.77MPa. Although red light also inhibited seed germination the graphite had no effect. We propose the pelletization of seeds of Raphanus sativus, at least in cv redondo gigante with graphite as a pratice before planting to increase the tolerance to water stress.<br>O efeito do estresse hídrico é dependente da presença de luz em sementes de rabanete. O efeito da peletização com grafite em pó foi analisado. Luz branca e vermelho-extremo são filtradas pelo grafite aumentando parcialmente a tolerância ao estresse hídrico de -0,77MPa em sementes peletizadas. Embora a luz vermelha também iniba a germinação em condições de estresse a peletização não teve efeito. Nós propomos a peletização de sementes de Raphanus saivus L. cv. redondo gigante como uma prática antes do plantio para aumentar a tolerância ao estresse hídrico.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500016PelletizationRaphanus sativusseed germinationwater stress
spellingShingle Nobel Penteado Freitas
Massanori Takaki
Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
Brazilian Archives of Biology and Technology
Pelletization
Raphanus sativus
seed germination
water stress
title Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
title_full Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
title_fullStr Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
title_full_unstemmed Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
title_short Pelletization of seeds of Raphanus sativus L. cv. Redondo Gigante with graphite for germination under water stress conditions
title_sort pelletization of seeds of raphanus sativus l cv redondo gigante with graphite for germination under water stress conditions
topic Pelletization
Raphanus sativus
seed germination
water stress
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500016
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AT massanoritakaki pelletizationofseedsofraphanussativuslcvredondogigantewithgraphiteforgerminationunderwaterstressconditions