Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn
The development of cultivars adapted to phosphorus (P) deficiency is crucial due to the non-renewable nature of this resource. Although heterosis is widely utilized in maize to enhance productivity, studies on the physiological mechanisms of heterosis expression in popcorn maize under P deficiency r...
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Taylor & Francis Group
2025-12-01
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| Series: | Cogent Food & Agriculture |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/23311932.2025.2452347 |
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| author | Rosimeire Barboza Bispo Antônio Teixeira do Amaral Junior Talles de Oliveira Santos Valter Jário de Lima Bruna Rohem Simão Marta Simone Mendonça Freitas Samuel Henrique Kamphorst Carolina Macedo Carvalho Danielle Leal Lamêgo Flávia Nicácio Viana Wallace de Paula Bernardo Eliemar Campostrini Ricardo Bressan-Smith |
| author_facet | Rosimeire Barboza Bispo Antônio Teixeira do Amaral Junior Talles de Oliveira Santos Valter Jário de Lima Bruna Rohem Simão Marta Simone Mendonça Freitas Samuel Henrique Kamphorst Carolina Macedo Carvalho Danielle Leal Lamêgo Flávia Nicácio Viana Wallace de Paula Bernardo Eliemar Campostrini Ricardo Bressan-Smith |
| author_sort | Rosimeire Barboza Bispo |
| collection | DOAJ |
| description | The development of cultivars adapted to phosphorus (P) deficiency is crucial due to the non-renewable nature of this resource. Although heterosis is widely utilized in maize to enhance productivity, studies on the physiological mechanisms of heterosis expression in popcorn maize under P deficiency remain limited, as do investigations of genetic control during the juvenile phase. This study evaluated the genetic control and heterosis effects on growth traits, gas exchange, leaf pigments, chlorophyll fluorescence, and P efficiency in four popcorn maize inbred lines and their hybrids, including reciprocals. Plants were grown in lysimeters under two contrasting P conditions until the V6 stage in a greenhouse. P deficiency reduced most traits, with dominance gene effects predominantly controlling morphophysiological traits and P efficiency under low P. Greater heterosis effects were observed for growth traits like aerial and root dry weight, root P content, and P efficiency under low P. Phosphorus utilization efficiency (PUtE) improved hybrid performance in phosphorus use efficiency (PUE), while higher instantaneous carboxylation efficiency (A/Ci) enhanced net CO2 assimilation rate (A) under P deficiency. |
| format | Article |
| id | doaj-art-70fa5f4de935474e9f34cfe0184165c9 |
| institution | Kabale University |
| issn | 2331-1932 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Food & Agriculture |
| spelling | doaj-art-70fa5f4de935474e9f34cfe0184165c92025-01-20T09:26:04ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322025-12-0111110.1080/23311932.2025.2452347Morphophysiological approach to heterosis in phosphorus use efficiency in popcornRosimeire Barboza Bispo0Antônio Teixeira do Amaral Junior1Talles de Oliveira Santos2Valter Jário de Lima3Bruna Rohem Simão4Marta Simone Mendonça Freitas5Samuel Henrique Kamphorst6Carolina Macedo Carvalho7Danielle Leal Lamêgo8Flávia Nicácio Viana9Wallace de Paula Bernardo10Eliemar Campostrini11Ricardo Bressan-Smith12Plant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Science Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilPlant Breeding Laboratory, Center for Agricultural Science and Technologies (CCTA), Universidade Estadual do Norte Fluminence Darcy Ribeiro—UENF, Campos dos Goytacazes, RJ, BrazilThe development of cultivars adapted to phosphorus (P) deficiency is crucial due to the non-renewable nature of this resource. Although heterosis is widely utilized in maize to enhance productivity, studies on the physiological mechanisms of heterosis expression in popcorn maize under P deficiency remain limited, as do investigations of genetic control during the juvenile phase. This study evaluated the genetic control and heterosis effects on growth traits, gas exchange, leaf pigments, chlorophyll fluorescence, and P efficiency in four popcorn maize inbred lines and their hybrids, including reciprocals. Plants were grown in lysimeters under two contrasting P conditions until the V6 stage in a greenhouse. P deficiency reduced most traits, with dominance gene effects predominantly controlling morphophysiological traits and P efficiency under low P. Greater heterosis effects were observed for growth traits like aerial and root dry weight, root P content, and P efficiency under low P. Phosphorus utilization efficiency (PUtE) improved hybrid performance in phosphorus use efficiency (PUE), while higher instantaneous carboxylation efficiency (A/Ci) enhanced net CO2 assimilation rate (A) under P deficiency.https://www.tandfonline.com/doi/10.1080/23311932.2025.2452347Inheritanceallelic complementationphosphorus use efficiencynutritional stressZea mays L. var. evertaAgriculture & Environmental Sciences |
| spellingShingle | Rosimeire Barboza Bispo Antônio Teixeira do Amaral Junior Talles de Oliveira Santos Valter Jário de Lima Bruna Rohem Simão Marta Simone Mendonça Freitas Samuel Henrique Kamphorst Carolina Macedo Carvalho Danielle Leal Lamêgo Flávia Nicácio Viana Wallace de Paula Bernardo Eliemar Campostrini Ricardo Bressan-Smith Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn Cogent Food & Agriculture Inheritance allelic complementation phosphorus use efficiency nutritional stress Zea mays L. var. everta Agriculture & Environmental Sciences |
| title | Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| title_full | Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| title_fullStr | Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| title_full_unstemmed | Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| title_short | Morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| title_sort | morphophysiological approach to heterosis in phosphorus use efficiency in popcorn |
| topic | Inheritance allelic complementation phosphorus use efficiency nutritional stress Zea mays L. var. everta Agriculture & Environmental Sciences |
| url | https://www.tandfonline.com/doi/10.1080/23311932.2025.2452347 |
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