Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait

Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait

As in other cultivated species, dormancy can be seen as a problem in cereal production, either due to its short duration or to its long persistence. Indeed, cereal crops lacking enough dormancy at harvest can be exposed to pre-harvest sprouting damage, while a long-lasting dormancy can interfere with processes that rely on rapid germination, such as malting or the emergence of a uniform crop. Because the ancestors of cereal species evolved under very diverse environments worldwide, different mechanisms have arisen as a way of sensing an appropriate germination environment [a crucial factor for winter or summer annuals such as cereals]. In addition, different species [and even different varieties within the same species] display diverse grain morphology, allowing some structures to impose dormancy in some cereals but not in others. As in seeds from many other species, the antagonism between the plant hormones abscisic acid and gibberellins is instrumental in cereal grains for the inception, expression, release and re-induction of dormancy. However, the way in which this antagonism operates is different for the various species and involves different molecular steps as regulatory sites. Environmental signals [i.e. temperature, light quality and quantity, oxygen levels] can modulate this hormonal control of dormancy differently, depending on the species. The practical implications of knowledge accumulated in this field are discussed.

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Main Authors: Rodríguez, María Verónica, Barrero, J. M., Corbineau, Françoise, Gubler, F., Benech Arnold, Roberto Luis
Format: Texto biblioteca
Language:spa
Subjects:SEED GERMINATION, SEED DORMANCY, PRE-HARVEST SPROUTING, CEREALS, CEREAL GRAIN, ,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47207
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spelling KOHA-OAI-AGRO:472072023-08-10T19:00:50Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47207http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGDormancy in cereals [not too much, not so little] about the mechanisms behind this traitRodríguez, María VerónicaBarrero, J. M.Corbineau, FrançoiseGubler, F.Benech Arnold, Roberto Luistextspaapplication/pdfAs in other cultivated species, dormancy can be seen as a problem in cereal production, either due to its short duration or to its long persistence. Indeed, cereal crops lacking enough dormancy at harvest can be exposed to pre-harvest sprouting damage, while a long-lasting dormancy can interfere with processes that rely on rapid germination, such as malting or the emergence of a uniform crop. Because the ancestors of cereal species evolved under very diverse environments worldwide, different mechanisms have arisen as a way of sensing an appropriate germination environment [a crucial factor for winter or summer annuals such as cereals]. In addition, different species [and even different varieties within the same species] display diverse grain morphology, allowing some structures to impose dormancy in some cereals but not in others. As in seeds from many other species, the antagonism between the plant hormones abscisic acid and gibberellins is instrumental in cereal grains for the inception, expression, release and re-induction of dormancy. However, the way in which this antagonism operates is different for the various species and involves different molecular steps as regulatory sites. Environmental signals [i.e. temperature, light quality and quantity, oxygen levels] can modulate this hormonal control of dormancy differently, depending on the species. The practical implications of knowledge accumulated in this field are discussed.As in other cultivated species, dormancy can be seen as a problem in cereal production, either due to its short duration or to its long persistence. Indeed, cereal crops lacking enough dormancy at harvest can be exposed to pre-harvest sprouting damage, while a long-lasting dormancy can interfere with processes that rely on rapid germination, such as malting or the emergence of a uniform crop. Because the ancestors of cereal species evolved under very diverse environments worldwide, different mechanisms have arisen as a way of sensing an appropriate germination environment [a crucial factor for winter or summer annuals such as cereals]. In addition, different species [and even different varieties within the same species] display diverse grain morphology, allowing some structures to impose dormancy in some cereals but not in others. As in seeds from many other species, the antagonism between the plant hormones abscisic acid and gibberellins is instrumental in cereal grains for the inception, expression, release and re-induction of dormancy. However, the way in which this antagonism operates is different for the various species and involves different molecular steps as regulatory sites. Environmental signals [i.e. temperature, light quality and quantity, oxygen levels] can modulate this hormonal control of dormancy differently, depending on the species. The practical implications of knowledge accumulated in this field are discussed.SEED GERMINATIONSEED DORMANCYPRE-HARVEST SPROUTINGCEREALSCEREAL GRAINSeed Science Research
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language spa
topic SEED GERMINATION
SEED DORMANCY
PRE-HARVEST SPROUTING
CEREALS
CEREAL GRAIN

SEED GERMINATION
SEED DORMANCY
PRE-HARVEST SPROUTING
CEREALS
CEREAL GRAIN
spellingShingle SEED GERMINATION
SEED DORMANCY
PRE-HARVEST SPROUTING
CEREALS
CEREAL GRAIN

SEED GERMINATION
SEED DORMANCY
PRE-HARVEST SPROUTING
CEREALS
CEREAL GRAIN
Rodríguez, María Verónica
Barrero, J. M.
Corbineau, Françoise
Gubler, F.
Benech Arnold, Roberto Luis
Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
description As in other cultivated species, dormancy can be seen as a problem in cereal production, either due to its short duration or to its long persistence. Indeed, cereal crops lacking enough dormancy at harvest can be exposed to pre-harvest sprouting damage, while a long-lasting dormancy can interfere with processes that rely on rapid germination, such as malting or the emergence of a uniform crop. Because the ancestors of cereal species evolved under very diverse environments worldwide, different mechanisms have arisen as a way of sensing an appropriate germination environment [a crucial factor for winter or summer annuals such as cereals]. In addition, different species [and even different varieties within the same species] display diverse grain morphology, allowing some structures to impose dormancy in some cereals but not in others. As in seeds from many other species, the antagonism between the plant hormones abscisic acid and gibberellins is instrumental in cereal grains for the inception, expression, release and re-induction of dormancy. However, the way in which this antagonism operates is different for the various species and involves different molecular steps as regulatory sites. Environmental signals [i.e. temperature, light quality and quantity, oxygen levels] can modulate this hormonal control of dormancy differently, depending on the species. The practical implications of knowledge accumulated in this field are discussed.
format Texto
topic_facet
SEED GERMINATION
SEED DORMANCY
PRE-HARVEST SPROUTING
CEREALS
CEREAL GRAIN
author Rodríguez, María Verónica
Barrero, J. M.
Corbineau, Françoise
Gubler, F.
Benech Arnold, Roberto Luis
author_facet Rodríguez, María Verónica
Barrero, J. M.
Corbineau, Françoise
Gubler, F.
Benech Arnold, Roberto Luis
author_sort Rodríguez, María Verónica
title Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
title_short Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
title_full Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
title_fullStr Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
title_full_unstemmed Dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
title_sort dormancy in cereals [not too much, not so little] about the mechanisms behind this trait
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=47207
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