Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency
An important milestone in Argentina peanut (Arachis hypogaea L.) breeding was the shift in the 1970sfrom cultivars with erect growth habit (CEGH) to cultivars with procumbent growth habit (CPGH). CPGHimproved seed yield but also lengthened growth cycle. However, there is no information if the change...
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| Format: | Artículo |
| Language: | Inglés |
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2018
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| Online Access: | http://hdl.handle.net/20.500.12123/2293 https://www.sciencedirect.com/science/article/pii/S0378429017301776 https://doi.org/10.1016/j.fcr.2017.01.021 |
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| author | Haro Juarez, Ricardo Javier Baldessari, Jorge Javier Otegui, Maria Elena |
| author_browse | Baldessari, Jorge Javier Haro Juarez, Ricardo Javier Otegui, Maria Elena |
| author_facet | Haro Juarez, Ricardo Javier Baldessari, Jorge Javier Otegui, Maria Elena |
| author_sort | Haro Juarez, Ricardo Javier |
| collection | INTA Digital |
| description | An important milestone in Argentina peanut (Arachis hypogaea L.) breeding was the shift in the 1970sfrom cultivars with erect growth habit (CEGH) to cultivars with procumbent growth habit (CPGH). CPGHimproved seed yield but also lengthened growth cycle. However, there is no information if the change ingrowth habit (GH) may have involved a phenotype with a canopy architecture that makes a differentialcapture and use of resources. Field experiments were performed to compute leaf are index (LAI), thefraction of incident photosynthetically active radiation intercepted by the crop (fIPAR), biomass produc-tion, radiation use efficiency (RUE) and harvest index (HI). Four cultivars of each GH, released between1948 and 2004, were evaluated. The LAI was always larger among CPGH than among CEGH. Only theformer reached the critical LAI. Likewise, fIPAR of CPGH was higher than that of CEGH throughout thecrop cycle. Maximum fIPAR differed between GHs (P < 0.001), with interannual mean values of 0.95 forCPGH and 0.77 for CEGH. Final total biomass of CPGH was 37% larger than that of CEGH. RUE valuesranged between 1.88 and 2.46 g MJ−1, and differed significantly (P ≤ 0.008) between GHs (CEGH > CPGH),Years (Year 1 > Year 2) and GH × Year (CPGH Year 1 > CPGH Year 2 = CEGH Year 2 = CEGH Year 1). CPGHimproved pod yield (+64%), seed yield (+101%), HI of pods (+29) and HI of seeds (+56%) respect to CEGH.Considering the effects of GH on the capacity of cultivars for achieving the critical LAI with current cropmanagement, future research should focus on alternative sowing patterns (e.g., reduced row spacingamong CEGH). |
| format | Artículo |
| id | INTA2293 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22932018-06-29T18:00:20Z Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency Haro Juarez, Ricardo Javier Baldessari, Jorge Javier Otegui, Maria Elena Arachis hypogaea An important milestone in Argentina peanut (Arachis hypogaea L.) breeding was the shift in the 1970sfrom cultivars with erect growth habit (CEGH) to cultivars with procumbent growth habit (CPGH). CPGHimproved seed yield but also lengthened growth cycle. However, there is no information if the change ingrowth habit (GH) may have involved a phenotype with a canopy architecture that makes a differentialcapture and use of resources. Field experiments were performed to compute leaf are index (LAI), thefraction of incident photosynthetically active radiation intercepted by the crop (fIPAR), biomass produc-tion, radiation use efficiency (RUE) and harvest index (HI). Four cultivars of each GH, released between1948 and 2004, were evaluated. The LAI was always larger among CPGH than among CEGH. Only theformer reached the critical LAI. Likewise, fIPAR of CPGH was higher than that of CEGH throughout thecrop cycle. Maximum fIPAR differed between GHs (P < 0.001), with interannual mean values of 0.95 forCPGH and 0.77 for CEGH. Final total biomass of CPGH was 37% larger than that of CEGH. RUE valuesranged between 1.88 and 2.46 g MJ−1, and differed significantly (P ≤ 0.008) between GHs (CEGH > CPGH),Years (Year 1 > Year 2) and GH × Year (CPGH Year 1 > CPGH Year 2 = CEGH Year 2 = CEGH Year 1). CPGHimproved pod yield (+64%), seed yield (+101%), HI of pods (+29) and HI of seeds (+56%) respect to CEGH.Considering the effects of GH on the capacity of cultivars for achieving the critical LAI with current cropmanagement, future research should focus on alternative sowing patterns (e.g., reduced row spacingamong CEGH). CR Còrdoba, EEA Manfredi Fil: Haro Juarez, Ricardo Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Baldessari, Jorge Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Otegui, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía; Argentina 2018-04-27T11:58:10Z 2018-04-27T11:58:10Z 2017-02-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2293 https://www.sciencedirect.com/science/article/pii/S0378429017301776 0378-4290 https://doi.org/10.1016/j.fcr.2017.01.021 eng info:eu-repograntAgreement/INTA/PNIND/1108062/AR./Introduccion de variabilidad y mejora genética continua de los cultivos industriales. info:eu-repo/semantics/restrictedAccess application/pdf Argentina (nation) 1948-2004 Field crops research 204 : 222-228. (March 2017) |
| spellingShingle | Arachis hypogaea Haro Juarez, Ricardo Javier Baldessari, Jorge Javier Otegui, Maria Elena Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title | Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title_full | Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title_fullStr | Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title_full_unstemmed | Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title_short | Genetic improvement of peanut in Argentina between 1948 and 2004: light interception, biomass production and radiation use efficiency |
| title_sort | genetic improvement of peanut in argentina between 1948 and 2004 light interception biomass production and radiation use efficiency |
| topic | Arachis hypogaea |
| url | http://hdl.handle.net/20.500.12123/2293 https://www.sciencedirect.com/science/article/pii/S0378429017301776 https://doi.org/10.1016/j.fcr.2017.01.021 |
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