Fruiting efficiency an alternative trait to further rise wheat yield

Fruiting efficiency an alternative trait to further rise wheat yield

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Further improvements in wheat yields are critical, for which increases in grain number would be required. In the recent past, higher grain number was achieved through increased growth of the juvenile spikes before anthesis, due to the r eduction in stem growth. As current cultivars have already an optimum height, alternatives must be identifi ed for further increasing grain number. One of them is increasing fruiting efficiency (grains set per unit of spike dry weight at anthesis). Fruiting efficiency is the final outcome of the fate of fl oret development and differences in this trait within modern cultivars would be related to higher survival of fl oret primordia. Then there are two alternative physiological pathways to improve fruiting efficiency by allowing a normal development of most vulnerable fl oret primordia: an increased allocation of assimilates for the developing florets before anthesis, or reduced demand of the fl orets for maintaining their normal development. Both alternatives may be possible, and it might be critical to recognize which of them is the actual cause of differences in fruiting effi ciency. When considering this trait in breeding we must be aware of potential trade-o ffs and therefore it must be avoided that increases in fruiting effi ciency be constitutively related to decreases in either spike dry weight at anthesis or grain weight. In this review we described fruiting effi ciency and its physiological bases, analyzing genetic variation and considering potential drawbacks that must be taken into account to avoid increases in fruiting effi ciency being compensated by other traits.

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Main Authors: Slafer, Gustavo Ariel, Elia, Mónica, Savin, Roxana, García, Guillermo Ariel, Terrile, Ignacio Ismael, Ferrante, Ariel, Miralles, Daniel Julio, González, Fernanda Gabriela
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Language:eng
Subjects:FLORET DEVELOPMENT, GRAIN NUMBER, PARTITIONING, SPIKE DRY WEIGHT, TRITICUM AESTIVUM, TRITICUM DURUM, YIELD COMPONENT,
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spelling KOHA-OAI-AGRO:461892023-09-12T11:49:39Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46189http://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=AAGFruiting efficiency an alternative trait to further rise wheat yieldSlafer, Gustavo ArielElia, MónicaSavin, RoxanaGarcía, Guillermo ArielTerrile, Ignacio IsmaelFerrante, ArielMiralles, Daniel JulioGonzález, Fernanda Gabrielatextengapplication/pdfFurther improvements in wheat yields are critical, for which increases in grain number would be required. In the recent past, higher grain number was achieved through increased growth of the juvenile spikes before anthesis, due to the r eduction in stem growth. As current cultivars have already an optimum height, alternatives must be identifi ed for further increasing grain number. One of them is increasing fruiting efficiency (grains set per unit of spike dry weight at anthesis). Fruiting efficiency is the final outcome of the fate of fl oret development and differences in this trait within modern cultivars would be related to higher survival of fl oret primordia. Then there are two alternative physiological pathways to improve fruiting efficiency by allowing a normal development of most vulnerable fl oret primordia: an increased allocation of assimilates for the developing florets before anthesis, or reduced demand of the fl orets for maintaining their normal development. Both alternatives may be possible, and it might be critical to recognize which of them is the actual cause of differences in fruiting effi ciency. When considering this trait in breeding we must be aware of potential trade-o ffs and therefore it must be avoided that increases in fruiting effi ciency be constitutively related to decreases in either spike dry weight at anthesis or grain weight. In this review we described fruiting effi ciency and its physiological bases, analyzing genetic variation and considering potential drawbacks that must be taken into account to avoid increases in fruiting effi ciency being compensated by other traits. Further improvements in wheat yields are critical, for which increases in grain number would be required. In the recent past, higher grain number was achieved through increased growth of the juvenile spikes before anthesis, due to the r eduction in stem growth. As current cultivars have already an optimum height, alternatives must be identifi ed for further increasing grain number. One of them is increasing fruiting efficiency (grains set per unit of spike dry weight at anthesis). Fruiting efficiency is the final outcome of the fate of fl oret development and differences in this trait within modern cultivars would be related to higher survival of fl oret primordia. Then there are two alternative physiological pathways to improve fruiting efficiency by allowing a normal development of most vulnerable fl oret primordia: an increased allocation of assimilates for the developing florets before anthesis, or reduced demand of the fl orets for maintaining their normal development. Both alternatives may be possible, and it might be critical to recognize which of them is the actual cause of differences in fruiting effi ciency. When considering this trait in breeding we must be aware of potential trade-o ffs and therefore it must be avoided that increases in fruiting effi ciency be constitutively related to decreases in either spike dry weight at anthesis or grain weight. In this review we described fruiting effi ciency and its physiological bases, analyzing genetic variation and considering potential drawbacks that must be taken into account to avoid increases in fruiting effi ciency being compensated by other traits. FLORET DEVELOPMENTGRAIN NUMBERPARTITIONINGSPIKE DRY WEIGHTTRITICUM AESTIVUMTRITICUM DURUMYIELD COMPONENTFood and Energy Security
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 eng
topic FLORET DEVELOPMENT
GRAIN NUMBER
PARTITIONING
SPIKE DRY WEIGHT
TRITICUM AESTIVUM
TRITICUM DURUM
YIELD COMPONENT
FLORET DEVELOPMENT
GRAIN NUMBER
PARTITIONING
SPIKE DRY WEIGHT
TRITICUM AESTIVUM
TRITICUM DURUM
YIELD COMPONENT
spellingShingle FLORET DEVELOPMENT
GRAIN NUMBER
PARTITIONING
SPIKE DRY WEIGHT
TRITICUM AESTIVUM
TRITICUM DURUM
YIELD COMPONENT
FLORET DEVELOPMENT
GRAIN NUMBER
PARTITIONING
SPIKE DRY WEIGHT
TRITICUM AESTIVUM
TRITICUM DURUM
YIELD COMPONENT
Slafer, Gustavo Ariel
Elia, Mónica
Savin, Roxana
García, Guillermo Ariel
Terrile, Ignacio Ismael
Ferrante, Ariel
Miralles, Daniel Julio
González, Fernanda Gabriela
Fruiting efficiency an alternative trait to further rise wheat yield
description Further improvements in wheat yields are critical, for which increases in grain number would be required. In the recent past, higher grain number was achieved through increased growth of the juvenile spikes before anthesis, due to the r eduction in stem growth. As current cultivars have already an optimum height, alternatives must be identifi ed for further increasing grain number. One of them is increasing fruiting efficiency (grains set per unit of spike dry weight at anthesis). Fruiting efficiency is the final outcome of the fate of fl oret development and differences in this trait within modern cultivars would be related to higher survival of fl oret primordia. Then there are two alternative physiological pathways to improve fruiting efficiency by allowing a normal development of most vulnerable fl oret primordia: an increased allocation of assimilates for the developing florets before anthesis, or reduced demand of the fl orets for maintaining their normal development. Both alternatives may be possible, and it might be critical to recognize which of them is the actual cause of differences in fruiting effi ciency. When considering this trait in breeding we must be aware of potential trade-o ffs and therefore it must be avoided that increases in fruiting effi ciency be constitutively related to decreases in either spike dry weight at anthesis or grain weight. In this review we described fruiting effi ciency and its physiological bases, analyzing genetic variation and considering potential drawbacks that must be taken into account to avoid increases in fruiting effi ciency being compensated by other traits.
format Texto
topic_facet FLORET DEVELOPMENT
GRAIN NUMBER
PARTITIONING
SPIKE DRY WEIGHT
TRITICUM AESTIVUM
TRITICUM DURUM
YIELD COMPONENT
author Slafer, Gustavo Ariel
Elia, Mónica
Savin, Roxana
García, Guillermo Ariel
Terrile, Ignacio Ismael
Ferrante, Ariel
Miralles, Daniel Julio
González, Fernanda Gabriela
author_facet Slafer, Gustavo Ariel
Elia, Mónica
Savin, Roxana
García, Guillermo Ariel
Terrile, Ignacio Ismael
Ferrante, Ariel
Miralles, Daniel Julio
González, Fernanda Gabriela
author_sort Slafer, Gustavo Ariel
title Fruiting efficiency an alternative trait to further rise wheat yield
title_short Fruiting efficiency an alternative trait to further rise wheat yield
title_full Fruiting efficiency an alternative trait to further rise wheat yield
title_fullStr Fruiting efficiency an alternative trait to further rise wheat yield
title_full_unstemmed Fruiting efficiency an alternative trait to further rise wheat yield
title_sort fruiting efficiency an alternative trait to further rise wheat yield
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46189
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=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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AT mirallesdanieljulio fruitingefficiencyanalternativetraittofurtherrisewheatyield
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