Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield
Heat stress (HS) combined with water stress (WS) negatively impact soybean [Glycine max (L.) Merr.] production. The aims of this research were to quantify the combined effect of HS and WS during grain filling (GF) on grain yield, and to identify physiological-biochemical traits strongly associated t...
| Main Authors: | , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/20.500.12123/3676 https://www.sciencedirect.com/science/article/pii/S0098847217303520?via%3Dihub https://doi.org/10.1016/j.envexpbot.2017.12.023 |
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| author | Ergo, Verónica Vanesa Lascano, Hernan Ramiro Vega, Claudia Rosa Cecilia Parola, Rodrigo Carrera, Constanza Soledad |
| author_browse | Carrera, Constanza Soledad Ergo, Verónica Vanesa Lascano, Hernan Ramiro Parola, Rodrigo Vega, Claudia Rosa Cecilia |
| author_facet | Ergo, Verónica Vanesa Lascano, Hernan Ramiro Vega, Claudia Rosa Cecilia Parola, Rodrigo Carrera, Constanza Soledad |
| author_sort | Ergo, Verónica Vanesa |
| collection | INTA Digital |
| description | Heat stress (HS) combined with water stress (WS) negatively impact soybean [Glycine max (L.) Merr.] production. The aims of this research were to quantify the combined effect of HS and WS during grain filling (GF) on grain yield, and to identify physiological-biochemical traits strongly associated to crop performance and yield determination processes under these stressful field environments. Two soybean cultivars were exposed during GF to ambient temperature or to HS (>32 °C for 6 h per d) during 21 d; and to field capacity or to WS (20% of available soil water content) during 35 d. Yield, grain number and weight (GN and GW) were significantly reduced under HS combined with WS. In irrigated HS yield and GN were also reduced, albeit final GW was similar to that of control, highlighting compensation mechanisms. Chlorophyll fluorescence analysis indicated that detrimental effects of HS and WS on photosynthesis were via structural capacity aspects but also through damage to photosystem II. The HS × WS decreased the availability of assimilate to grains, but also impaired the sink-grain metabolization of the remobilized products from leaves. A multivariate analysis highlighted strong correlations between quantum efficiency of photosystem II photochemistry, chlorophyll content (SPAD value), and the antioxidant state of leaves, which were all positively correlated with yield. Canopy temperature throughout grain filling (CTGF) was negatively associated with GN and GW, the latter also positively associated with SPAD. Explaining these physiological traits 81, 50, and 82% of the total variability of yield, GN and GW, respectively. To our knowledge this is the first report that integrating different scales of study, demonstrates the potential of physiological-biochemical parameters to explain yield variations in field-grown soybean under HS and WS conditions. |
| format | Artículo |
| id | INTA3676 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA36762018-10-23T15:07:19Z Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield Ergo, Verónica Vanesa Lascano, Hernan Ramiro Vega, Claudia Rosa Cecilia Parola, Rodrigo Carrera, Constanza Soledad Soja Glycine Max Estrés de Sequia Estrés Térmico Rendimiento Potencial Redox Granos Soybeans Drought Stress Heat Stress Yields Redox Potential Grain Primary Metabolism Metabolismo Primario Heat stress (HS) combined with water stress (WS) negatively impact soybean [Glycine max (L.) Merr.] production. The aims of this research were to quantify the combined effect of HS and WS during grain filling (GF) on grain yield, and to identify physiological-biochemical traits strongly associated to crop performance and yield determination processes under these stressful field environments. Two soybean cultivars were exposed during GF to ambient temperature or to HS (>32 °C for 6 h per d) during 21 d; and to field capacity or to WS (20% of available soil water content) during 35 d. Yield, grain number and weight (GN and GW) were significantly reduced under HS combined with WS. In irrigated HS yield and GN were also reduced, albeit final GW was similar to that of control, highlighting compensation mechanisms. Chlorophyll fluorescence analysis indicated that detrimental effects of HS and WS on photosynthesis were via structural capacity aspects but also through damage to photosystem II. The HS × WS decreased the availability of assimilate to grains, but also impaired the sink-grain metabolization of the remobilized products from leaves. A multivariate analysis highlighted strong correlations between quantum efficiency of photosystem II photochemistry, chlorophyll content (SPAD value), and the antioxidant state of leaves, which were all positively correlated with yield. Canopy temperature throughout grain filling (CTGF) was negatively associated with GN and GW, the latter also positively associated with SPAD. Explaining these physiological traits 81, 50, and 82% of the total variability of yield, GN and GW, respectively. To our knowledge this is the first report that integrating different scales of study, demonstrates the potential of physiological-biochemical parameters to explain yield variations in field-grown soybean under HS and WS conditions. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Ergo, Verónica Vanesa. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina Fil: Lascano, Hernan Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vega, Claudia Rosa Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Parola, Rodrigo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Carrera, Constanza Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2018-10-23T15:02:21Z 2018-10-23T15:02:21Z 2018-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/3676 https://www.sciencedirect.com/science/article/pii/S0098847217303520?via%3Dihub 0098-8472 https://doi.org/10.1016/j.envexpbot.2017.12.023 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Environmental and experimental botany 148 : 1-11. (April 2018) |
| spellingShingle | Soja Glycine Max Estrés de Sequia Estrés Térmico Rendimiento Potencial Redox Granos Soybeans Drought Stress Heat Stress Yields Redox Potential Grain Primary Metabolism Metabolismo Primario Ergo, Verónica Vanesa Lascano, Hernan Ramiro Vega, Claudia Rosa Cecilia Parola, Rodrigo Carrera, Constanza Soledad Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title | Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title_full | Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title_fullStr | Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title_full_unstemmed | Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title_short | Heat and water stressed field-grown soybean : a multivariate study on the relationship between physiological-biochemical traits and yield |
| title_sort | heat and water stressed field grown soybean a multivariate study on the relationship between physiological biochemical traits and yield |
| topic | Soja Glycine Max Estrés de Sequia Estrés Térmico Rendimiento Potencial Redox Granos Soybeans Drought Stress Heat Stress Yields Redox Potential Grain Primary Metabolism Metabolismo Primario |
| url | http://hdl.handle.net/20.500.12123/3676 https://www.sciencedirect.com/science/article/pii/S0098847217303520?via%3Dihub https://doi.org/10.1016/j.envexpbot.2017.12.023 |
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