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dc.contributor.author
Vega, Claudia Rosa Cecilia
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dc.contributor.author
Andrade, Fernando Héctor
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dc.contributor.author
Sadras, Victor Oscar
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dc.contributor.author
Uhart, Sergio Adolfo
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dc.contributor.author
Valentinuz, Oscar Rodolfo
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dc.date.available
2022-01-25T19:39:16Z
dc.date.issued
2001-06
dc.identifier.citation
Vega, Claudia Rosa Cecilia; Andrade, Fernando Héctor; Sadras, Victor Oscar; Uhart, Sergio Adolfo; Valentinuz, Oscar Rodolfo; Seed number as a function of growth: A comparative study in soybean, sunflower, and maize; Crop Science Society of America; Crop Science; 41; 3; 6-2001; 748-754
dc.identifier.issn
0011-183X
dc.identifier.uri
http://hdl.handle.net/11336/150660
dc.description.abstract
Seed number, the main yield component of cereals and oil-seed Growth rate during the window of time critical for species, strongly depends on the physiological status of the crop during a critical period for seed set. Using a comparative approach including seed set has been used to quantify the physiological three species with contrasting reproductive strategies, we investigated status of crops as affected by genotype, environment, the relationship between seed number per plant (SNP) and plant and their interaction. Further, empirical evidence supgrowth rate during the critical period for seed set (PGRC ). Indetermi- ports the association between seed number and crop nate soybean [Glycine max (L.) Merr.], sunflower (Helianthus annuus growth (Hawkins and Cooper, 1981; Egli and Yu, 1991). L.), and maize (Zea mays L.) crops were grown under a wide range Controversy exists, however, on the actual shape of the of plant densities to generate contrasting availability of resources relationship between SNP and PGRC in maize (Tollen- per plant. Growth of individual plants was estimated by a novel, aar et al., 1992; Kiniry et al., 1997; Ritchie and Wei, nondestructive method based on relationships between actual shoot 2000) and no reports have been found regarding the dry matter and morphometric variables, including stem diameter, SNP-PGRC relationship in sunflower. Importantly, most plant height, and dimensions of reproductive structures. Seed number per plant ranged from 0 to 890 in soybean, 0 to 4096 in sunflower, research related to seed set has dealt with single plant and 0 to 1348 in maize and PGRC (g d21 ) from 0.01 to 4.3 in soybean, species. In this work, a comparative approach is used 0.3 to 17.6 in sunflower, and 0.4 to 12.3 in maize. Our study showed to highlight common pathways and contrasts in the way that (i) the relationship between SNP and PGRC was linear in soybean, in which seed set is determined in major crop species. reflecting the reproductive plasticity of this species, and curvilinear Sunflower, soybean, and maize are three annual spe- in sunflower and maize, reflecting morphogenetic restrictions to gener- cies with contrasting reproductive strategies. Our hy- ate reproductive sinks under favorable growing conditions; (ii) the pothesis is, therefore, that the putative relationship be- PGRC threshold below which no seed was set varied among species, tween seed number and plant growth rate during the being negligible in soybean, close to 0.35 g d21 in sunflower, and 1 g critical period for seed number determination is not d21 in maize. Quantitative relationships between seed number and unique but strongly depends on the reproductive strate- plant growth rate during the critical period of seed set could be useful for crop modeling.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Crop Science Society of America
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SEED NUMBER
dc.subject
HELIANTHUS ANNUUS
dc.subject
GLYCINE MAX
dc.subject
ZEA MAYS
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Seed number as a function of growth: A comparative study in soybean, sunflower, and maize
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-01-03T14:02:47Z
dc.identifier.eissn
1435-0653
dc.journal.volume
41
dc.journal.number
3
dc.journal.pagination
748-754
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Baltimore
dc.description.fil
Fil: Vega, Claudia Rosa Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Balcarce; Argentina
dc.description.fil
Fil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Balcarce; Argentina
dc.description.fil
Fil: Sadras, Victor Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Balcarce; Argentina
dc.description.fil
Fil: Uhart, Sergio Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Balcarce; Argentina
dc.description.fil
Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Balcarce; Argentina
dc.journal.title
Crop Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://acsess.onlinelibrary.wiley.com/doi/full/10.2135/cropsci2001.413748x
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2135/cropsci2001.413748x
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