MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY
The objective of this study was to demonstrate the potential of chlorophyllfluorescence parameters to characterize maize inbreds to photosynthesis efficiency, andto be used as tool for selection of genotypes under water and nitrogen stresses. Therewere measured chlorophyll content, electron transpor...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Milho e Sorgo
2005-12-01
|
| Series: | Revista Brasileira de Milho e Sorgo |
| Subjects: | |
| Online Access: | http://rbms.cnpms.embrapa.br/index.php/ojs/article/view/155/155 |
| _version_ | 1818575070844420096 |
|---|---|
| author | FREDERICO O. M. DURÃES PAULO CÉSAR MAGALHÃES ELTO EUGENIO GOMES E GAMA ANTÔNIO CARLOS DE OLIVEIRA |
| author_facet | FREDERICO O. M. DURÃES PAULO CÉSAR MAGALHÃES ELTO EUGENIO GOMES E GAMA ANTÔNIO CARLOS DE OLIVEIRA |
| author_sort | FREDERICO O. M. DURÃES |
| collection | DOAJ |
| description | The objective of this study was to demonstrate the potential of chlorophyllfluorescence parameters to characterize maize inbreds to photosynthesis efficiency, andto be used as tool for selection of genotypes under water and nitrogen stresses. Therewere measured chlorophyll content, electron transport rate (ETR) and CO2 assimilation(A) averages, at flowering. ETR and A showed strong correlation, and were able todiscriminate significantly two groups of inbred lines: a) inbred line G1; and, b) inbredlines G2 and G3. The higher photosynthetic capacity of inbred line G1 was explained byits greater carboxylation efficiency. Similar response was observed for total aerialphytomass and grain production. The results showed the nitrogen as being an importantfactor to maize yield, which can be monitored by chlorophyll content and photochemistryparameters of photosynthesis. ETR and (A) proved to be useful parameters to evaluatecontrasting genotypes, with or without water stress. |
| first_indexed | 2024-12-15T00:35:22Z |
| format | Article |
| id | doaj.art-c2e4b76e6df54c2684e12071423fa823 |
| institution | Directory Open Access Journal |
| issn | 1676-689X 1980-6477 |
| language | English |
| last_indexed | 2024-12-15T00:35:22Z |
| publishDate | 2005-12-01 |
| publisher | Associação Brasileira de Milho e Sorgo |
| record_format | Article |
| series | Revista Brasileira de Milho e Sorgo |
| spelling | doaj.art-c2e4b76e6df54c2684e12071423fa8232022-12-21T22:41:49ZengAssociação Brasileira de Milho e SorgoRevista Brasileira de Milho e Sorgo1676-689X1980-64772005-12-0143355361MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCYFREDERICO O. M. DURÃESPAULO CÉSAR MAGALHÃESELTO EUGENIO GOMES E GAMAANTÔNIO CARLOS DE OLIVEIRAThe objective of this study was to demonstrate the potential of chlorophyllfluorescence parameters to characterize maize inbreds to photosynthesis efficiency, andto be used as tool for selection of genotypes under water and nitrogen stresses. Therewere measured chlorophyll content, electron transport rate (ETR) and CO2 assimilation(A) averages, at flowering. ETR and A showed strong correlation, and were able todiscriminate significantly two groups of inbred lines: a) inbred line G1; and, b) inbredlines G2 and G3. The higher photosynthetic capacity of inbred line G1 was explained byits greater carboxylation efficiency. Similar response was observed for total aerialphytomass and grain production. The results showed the nitrogen as being an importantfactor to maize yield, which can be monitored by chlorophyll content and photochemistryparameters of photosynthesis. ETR and (A) proved to be useful parameters to evaluatecontrasting genotypes, with or without water stress.http://rbms.cnpms.embrapa.br/index.php/ojs/article/view/155/155Zea mays L.floweringphotosynthesischlorophyll fluorescenceenvironment stress |
| spellingShingle | FREDERICO O. M. DURÃES PAULO CÉSAR MAGALHÃES ELTO EUGENIO GOMES E GAMA ANTÔNIO CARLOS DE OLIVEIRA MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY Revista Brasileira de Milho e Sorgo Zea mays L. flowering photosynthesis chlorophyll fluorescence environment stress |
| title | MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY |
| title_full | MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY |
| title_fullStr | MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY |
| title_full_unstemmed | MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY |
| title_short | MAIZE INBRED LINES PHENOTYPIC CHARACTERIZATION FOR YIELD AND PHOTOSYNTHETIC EFFICIENCY |
| title_sort | maize inbred lines phenotypic characterization for yield and photosynthetic efficiency |
| topic | Zea mays L. flowering photosynthesis chlorophyll fluorescence environment stress |
| url | http://rbms.cnpms.embrapa.br/index.php/ojs/article/view/155/155 |
| work_keys_str_mv | AT fredericoomduraes maizeinbredlinesphenotypiccharacterizationforyieldandphotosyntheticefficiency AT paulocesarmagalhaes maizeinbredlinesphenotypiccharacterizationforyieldandphotosyntheticefficiency AT eltoeugeniogomesegama maizeinbredlinesphenotypiccharacterizationforyieldandphotosyntheticefficiency AT antoniocarlosdeoliveira maizeinbredlinesphenotypiccharacterizationforyieldandphotosyntheticefficiency |