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Gustavo A. Slafer
University of Lleida
213Publications
58H-index
10.9kCitations
Publications 213
Newest
Published on Feb 22, 2019in Scientific Reports4.01
Helga Ochagavía3
Estimated H-index: 3
(University of Lleida),
Paula Prieto3
Estimated H-index: 3
(University of Lleida)
+ 2 AuthorsGustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Differences in time to heading that remain after photoperiod and vernalisation requirements have been saturated are classified as earliness per se (Eps) effects. It has been commonly assumed that Eps genes are purely constitutive and independent of environment, although the likely effect of temperature on Eps effects in hexaploid wheat has never been tested. We grew four near isogenic lines (NILs) for the Eps gene located in chromosome 1D (Eps-D1) at 6, 9, 12, 15, 18, 21 and 24 °C. In line with ...
Published on Sep 1, 2019in Field Crops Research3.87
Roxana Savin18
Estimated H-index: 18
(University of Lleida),
Victor O. Sadras50
Estimated H-index: 50
(University of Adelaide),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Abstract Water and temperature stress during critical periods of grain yield formation are distinctive of wheat crops in Mediterranean environments. However, nitrogen (N) availability may also constrain grain yields in these environments. Benchmarks of yield response to N uptake in Mediterranean conditions are lacking, and extrapolation from non-Mediterranean environments is not warranted. We hypothesised that under Mediterranean environments (1) maximum N uptake would be lower, thus the range o...
Published on Mar 1, 2019
Gustavo A. Slafer58
Estimated H-index: 58
,
Antonio J. Hall35
Estimated H-index: 35
(UBA: University of Buenos Aires),
Daniel J. Miralles31
Estimated H-index: 31
(UBA: University of Buenos Aires)
La ecofisiologia de cultivos en Argentina tiene una amplia y reconocida trayectoria no solo en el ambito nacional sino tambien internacionalmente a traves de una importante cantidad de trabajos publicados por distintos grupos de investigacion argentinos en revistas cientificas y tecnicas de reconocimiento mundial. En este trabajo se ha intentado poner de relevancia el impacto que la investigacion en ecofisiologia de cultivos realizada en Argentina ha tenido en la comunidad cientifica internacion...
Published on Feb 20, 2019in Journal of Experimental Botany5.36
Thomas I. Pérez-Gianmarco1
Estimated H-index: 1
(University of Lleida),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida),
Fernanda G. González14
Estimated H-index: 14
(CONICET: National Scientific and Technical Research Council)
Published on Feb 1, 2019in Field Crops Research3.87
Addy L. Garcia (University of Lleida), Roxana Savin18
Estimated H-index: 18
(University of Lleida),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Abstract Grain number (GN) is critical for yield determination, and understanding its physiology may be instrumental to further improving yield. Studying similarities and differences in yield physiology among cereals may highlight physiological traits that might become critical for understanding some constitutive differences between them. Recently it has been proposed that fruiting efficiency (FE, grains set per unit of inflorescence dry weight at anthesis IDWa) would be a relevant trait to furt...
Published on Jan 1, 2019
Roxana Savin18
Estimated H-index: 18
,
Gustavo A. Slafer58
Estimated H-index: 58
Published on Oct 1, 2018in Current Opinion in Plant Biology7.51
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida),
Roxana Savin18
Estimated H-index: 18
(University of Lleida)
Deleterious effects of heat on crop yields are well documented and the occurrence of heat stresses will likely be a major constraint to achieving increased yields of major crops. Thus, agronomic and genetic strategies for increased resilience to high temperatures will be necessary. Much of the work done on this area has been focused to identify genetic sources of increased resilience and much less has been done on the crop ecology side. Nitrogen (N) fertilization is within the most common manage...
Published on Sep 1, 2018in European Journal of Agronomy3.38
Paula Prieto3
Estimated H-index: 3
(University of Lleida),
Helga Ochagavía3
Estimated H-index: 3
(University of Lleida)
+ 2 AuthorsGustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Abstract Variations in wheat yield are largely explained by changes in grain number per m 2 which is linked to the number of fertile florets at anthesis. This, in turn is the outcome of developmental processes which control floret initiation and mortality. Earliness ‘ per se ’ ( Eps ) genes are involved in fine-tuning time to anthesis in wheat (and other cereals) but their effect on development prior to anthesis is less well studied. We aimed to determine effects of Eps genes on spike fertility,...
Published on Sep 1, 2018in European Journal of Agronomy3.38
Helga Ochagavía3
Estimated H-index: 3
(University of Lleida),
Paula Prieto3
Estimated H-index: 3
(University of Lleida)
+ 2 AuthorsGustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Abstract Earliness per se ( Eps ) genes are critical for fine-tuning flowering time and likely to modify other developmental traits as well. Effects of Eps alleles on components comprising flowering time of hexaploid wheat have not been studied. In this work, we evaluated under field conditions the effects of Eps alleles on flowering time and on a number of developmental traits using four groups of near isogenic lines (NILs) with contrasting Eps alleles (late vs early alleles). The NIL groups we...
Published on May 1, 2018in Field Crops Research3.87
M. Elía8
Estimated H-index: 8
(University of Lleida),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida),
Roxana Savin18
Estimated H-index: 18
(University of Lleida)
Abstract High-temperatures reduce yield of wheat and with global warming episodes of heat waves (only few days of high maximum temperatures) during grain filling will become more frequent. It has been recently reported that the magnitude of the yield penalties imposed by high temperatures under field conditions may interact with nitrogen (N) availability both in barley and maize. We determined, under field conditions, the penalties imposed by post-anthesis high-temperatures waves (increased maxi...
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