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PAPER PRESENTED AT INTERNATIONAL WORKSHOP ON INCREASING WHEAT YIELD POTENTIAL, CIMMYT, OBREGON, MEXICO, 20–24 MARCH 2006 Sink limitations to yield in wheat: how could it be reduced?

Published on Apr 1, 2007in The Journal of Agricultural Science1.33
· DOI :10.1017/S0021859607006752
Daniel J. Miralles31
Estimated H-index: 31
(UBA: University of Buenos Aires),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Cite
Abstract
Ponencia presentada al International Workshop on Increasing Wheat Yield Potential, CIMMYT, Obregon, Mexic, del 20 al 24 de marc de 2006.
  • References (38)
  • Citations (133)
Cite
References38
Newest
Published on Jul 1, 2006in Field Crops Research3.87
Martín M. Acreche8
Estimated H-index: 8
(University of Lleida),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida)
Abstract This study explored whether the average grain weight of wheat tends to be reduced when grain number is increased due to either competition or, to a consistent increase in the relative proportion of grains of smaller weight potential. Three field experiments considering environmental, genetic and environmental × genetic effects on yield and its main components were analysed during the 2003/2004 growing season in two different locations within the Mediterranean area of Catalonia, Spain. T...
Published on Mar 6, 2006in Euphytica1.53
Fernanda G. González14
Estimated H-index: 14
(UBA: University of Buenos Aires),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida),
Daniel J. Miralles31
Estimated H-index: 31
(UBA: University of Buenos Aires)
Lengthening the late reproductive phase (LRP) of stem elongation in wheat (Triticum aestivumL.), by changing its photoperiod sensitivity independently of the preceding phases, would improve the yield potential through increasing spike weight and the number of fertile florets at anthesis. This paper presents results of a two-year field experiment designed to determine the impact of Ppd-D1and Ppd-B1on (i) the duration of three pre-anthesis developmental phases, and (ii) spike weight and the number...
Published on Jan 1, 2005in Crop Science1.64
J. C. Comstock11
Estimated H-index: 11
(ARS: Agricultural Research Service),
Barry Glaz18
Estimated H-index: 18
(ARS: Agricultural Research Service)
+ 5 AuthorsJ. O. Davidson3
Estimated H-index: 3
Published on Jan 1, 2005in Functional Plant Biology2.33
Fernanda G. González14
Estimated H-index: 14
(UBA: University of Buenos Aires),
Gustavo A. Slafer58
Estimated H-index: 58
(University of Lleida),
Daniel J. Miralles31
Estimated H-index: 31
(UBA: University of Buenos Aires)
Increasing duration of stem elongation by exposure to short photoperiod would result in higher spike dry weight at anthesis, which is positively associated with the number of fertile florets and grains in wheat. However, it is not easy to determine whether photoperiod effects on fertile florets and grains are only mediated by assimilate supply to the growing spike when spike weight variation is attained only with photoperiod treatments. The aim of this study was to determine whether photoperiod ...
Published on Jan 1, 2005in Annals of Applied Biology1.61
Matthew P. Reynolds61
Estimated H-index: 61
(CIMMYT: International Maize and Wheat Improvement Center),
A Pellegrineschi1
Estimated H-index: 1
(CIMMYT: International Maize and Wheat Improvement Center),
B Skovmand1
Estimated H-index: 1
(CIMMYT: International Maize and Wheat Improvement Center)
Summary Yield potential can be expressed as a product of light interception, radiation use efficiency (RUE), and the partitioning of biomass to grain yield, or harvest index (HI). Traits related to early or late light interception have not been shown to be associated with genetic improvement of spring wheat yield in favourable environments. It is, however, well established that yield improvement is largely a result of increased HI, although the most recent studies comparing genetic progress in H...
Published on Nov 1, 2004in Field Crops Research3.87
G.O. Edmeades5
Estimated H-index: 5
(DuPont Pioneer),
Gregory S. McMaster21
Estimated H-index: 21
(ARS: Agricultural Research Service)
+ 1 AuthorsH. Campos4
Estimated H-index: 4
(DuPont Pioneer)
Plant physiologists have traditionally studied the relationship between crop performance (the phenotype) and the environment. Global change processes present multiple challenges to crop performance that can be met effectively by changing the crop environment through management, and by modifying the crop genome (the genotype) through plant breeding and molecular biology. In order to increase the reliability of crop performance prediction based upon genetic information, new tools are needed to mor...
Published on Mar 1, 2004in Field Crops Research3.87
Lucas Borrás20
Estimated H-index: 20
,
Gustavo A. Slafer58
Estimated H-index: 58
,
María E. Otegui32
Estimated H-index: 32
Abstract Determining to what degree seed weight differences are due to competition among seeds for insufficient source is critical for the rational design of breeding and management strategies aimed at maximizing crop yields. While the crop physiology literature cites many examples of source and/or sink yield limitations during seed filling, interpretation of these data has usually been qualitative in nature, biasing our view of the source–sink yield limitations during this period. In the presen...
Published on Feb 27, 2004
Published on Feb 1, 2004in Trends in Plant Science14.01
Thomas R. Sinclair60
Estimated H-index: 60
(UF: University of Florida),
Larry C. Purcell17
Estimated H-index: 17
(UA: University of Arkansas),
Clay Sneller20
Estimated H-index: 20
(OSU: Ohio State University)
Molecular transformation is commonly offered as a hope to overcome the apparent stagnation in crop yield potential. A basic understanding of the resource limits imposed on crops and the yield hierarchy going from gene expression to harvestable yield leads to a rather negative view that transformations of a few, or even of a complex of genes will result directly in major yield increases. Forty years of biochemical and physiological research illustrate the great difficulty in translating research ...
Published on Jan 1, 2004in Euphytica1.53
M.J. Foulkes17
Estimated H-index: 17
,
R. Sylvester-Bradley32
Estimated H-index: 32
+ 1 AuthorsJ. W. Snape50
Estimated H-index: 50
Using a pair of near-isogenic lines(NILs) of winter wheat (Triticumaestivum L.) contrasting for the Ppd-D1 and ppd-D1 alleles, in eachof Mercia and Cappelle-Desprez, experimentsin two seasons (1997/8 and 1998/9) on aloamy medium sand examined differences inflowering date, resource capture, biomassproduction and grain yield responses toirrigation. Drought did not occur for anysustained period in unirrigated conditionsin 1998 due to high seasonal rainfall. In1999, drought developed post-floweringu...
Cited By133
Newest
Published on Dec 1, 2019in BMC Plant Biology3.67
Faji Li1
Estimated H-index: 1
(Xinjiang Agricultural University),
Weie Wen8
Estimated H-index: 8
(Xinjiang Agricultural University)
+ 10 AuthorsJun Yan12
Estimated H-index: 12
(CAAS: Civil Aviation Authority of Singapore)
Identification of loci for grain yield (GY) and related traits, and dissection of the genetic architecture are important for yield improvement through marker-assisted selection (MAS). Two genome-wide association study (GWAS) methods were used on a diverse panel of 166 elite wheat varieties from the Yellow and Huai River Valleys Wheat Zone (YHRVWD) of China to detect stable loci and analyze relationships among GY and related traits. A total of 326,570 single nucleotide polymorphism (SNP) markers ...
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 in Agronomy
Alejandro del Pozo15
Estimated H-index: 15
,
Iván Matus10
Estimated H-index: 10
+ -3 AuthorsMaria Dolores Serret11
Estimated H-index: 11
In Chile, durum wheat is cultivated in high-yielding Mediterranean environments, therefore breeding programs have selected cultivars with high yield potential in addition to grain quality. The genetic progress in grain yield (GY) between 1964 and 2010 was 72.8 kg ha−1 per year. GY showed a positive and significant correlation with days to heading, kernels per unit ground area and thousand kernel weight. The gluten and protein content tended to decrease with the year of cultivar release. The corr...
Published on May 1, 2019in Field Crops Research3.87
Carolina Rivera-Amado1
Estimated H-index: 1
,
Carolina Rivera-Amado (CIMMYT: International Maize and Wheat Improvement Center)+ 3 AuthorsM. John Foulkes16
Estimated H-index: 16
Abstract Improving biomass is an important goal for future genetic gains in yield potential in wheat, but it will also be crucial to identify physiological traits to maximize harvest index (HI, proportion of aboveground biomass in grain). Increased grain partitioning will require increased dry-matter (DM) partitioning to the spikes at anthesis as well as enhanced fruiting efficiency (FE, grains per g spike dry matter at anthesis or chaff dry matter at harvest), whilst optimizing the partitioning...
Published on Jun 1, 2019in Theoretical and Applied Genetics3.93
Gizaw M. Wolde2
Estimated H-index: 2
(Leibniz Association),
Corinna Trautewig1
Estimated H-index: 1
(Leibniz Association)
+ 1 AuthorsThorsten Schnurbusch25
Estimated H-index: 25
(MLU: Martin Luther University of Halle-Wittenberg)
Key message Modifying morphometric inflorescence traits is important for increasing grain yield in wheat. Mapping revealed nine QTL, including new QTL and a new allele for the q locus, controlling wheat spike morphometric traits.
Published on May 30, 2019in Agronomy
Marco Vizzari7
Estimated H-index: 7
,
Francesco Santaga , Paolo Benincasa15
Estimated H-index: 15
This study aimed to compare standard and precision nitrogen (N) fertilization with variable rate technology (VRT) in winter wheat (Triticum aestivum L.) by combining data of NDVI (Normalized Difference Vegetation Index) from the Sentinel 2 satellite, grain yield mapping, and protein content. Precision N rates were calculated using simple linear models that can be easily used by non-specialists of precision agriculture, starting from widely available Sentinel 2 NDVI data. To remove the effects of...
Published on May 14, 2019in Agronomy
Malin Broberg9
Estimated H-index: 9
,
Malin Broberg5
Estimated H-index: 5
+ 1 AuthorsHåkan Pleijel32
Estimated H-index: 32
Elevated carbon dioxide (eCO2) is well known to stimulate plant photosynthesis and growth. Elevated carbon dioxide’s effects on crop yields are of particular interest due to concerns for future food security. We compiled experimental data where field-grown wheat (Triticum aestivum Linnaeus) was exposed to different CO2 concentrations. Yield and yield components were analyzed by meta-analysis to estimate average effects, and response functions derived to assess effect size in relation to CO2 conc...
Published on Apr 1, 2019in Molecular Genetics and Genomics2.88
Gizaw M. Wolde2
Estimated H-index: 2
(Leibniz Association),
Martin Mascher25
Estimated H-index: 25
(Leibniz Association),
Thorsten Schnurbusch25
Estimated H-index: 25
(MLU: Martin Luther University of Halle-Wittenberg)
Crop yield is determined by the acquisition and allocation of photoassimilates in sink organs. Therefore, genetic modification of sink size is essential for understanding the complex signaling network regulating sink strength and source activities. Sink size in wheat depends on the number of spikelets per spike, floret/grain number per spikelet as well as the grain weight or dry matter accumulation. Hence, increasing spikelet number and improving sink size are targets for wheat breeding. The mai...
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)