Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear
ABSTRACT This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha−1 yr−1) and P2O5 (10.0, 70.0, 100.0, 13...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zootecnia
2021-08-01
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| Series: | Revista Brasileira de Zootecnia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100506&tlng=en |
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| author | Marcos Neves Lopes Gil Mario Ferreira Gomes Theyson Duarte Maranhão Walisson Marques Silveira Roberto Cláudio Fernandes Franco Pompeu Rodrigo Gregório da Silva Marlos Alves Bezerra Magno José Duarte Cândido |
| author_facet | Marcos Neves Lopes Gil Mario Ferreira Gomes Theyson Duarte Maranhão Walisson Marques Silveira Roberto Cláudio Fernandes Franco Pompeu Rodrigo Gregório da Silva Marlos Alves Bezerra Magno José Duarte Cândido |
| author_sort | Marcos Neves Lopes |
| collection | DOAJ |
| description | ABSTRACT This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha−1 yr−1) and P2O5 (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha−1 yr−1) were evaluated in the dry and rainy seasons in semi-arid regions. A completely randomized block design with split-plot arrangement was adopted with four replications. In Quixadá, the maximum potential quantum efficiency of photosystem II (Fv/Fm) was 0.82, observed in third-order cladodes (rainy season and N/P 75.6/10.0 kg ha−1 yr−1), while in Tejuçuoca, the maximum Fv/Fm was 0.81, found in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha−1 yr−1). In Quixadá, the maximum electron transport rate (ETR) was 31.6 μmol m−2 s−1 in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha−1 yr−1), and in Tejuçuoca, the maximum ETR was 24.1 μmol m−2 s−1, in second-order cladodes (rainy season and N/P 110.1/10.0 kg ha−1 yr−1). In Quixadá and Tejuçuoca, higher values of Fv/Fm and ETR were observed in the rainy season. In Quixadá, the maximum fluorescence decrease ratio (FDR) was 4.04 in third-order cladodes (rainy season and N/P 10.0/114.8 kg ha−1 yr−1), while in Tejuçuoca, the maximum FDR was 6.93, found in 2nd/3rd order cladodes (rainy season and N/P 190.0/10.0 kg ha−1 yr−1). In Quixadá and Tejuçuoca, there was predominance of higher FDR values in the rainy season. Nitrogen, phosphorus, and water status modulate the photochemical efficiency of cladodes of cactus pear cv. Gigante in semi-arid regions. |
| first_indexed | 2024-12-20T16:55:04Z |
| format | Article |
| id | doaj.art-add0e06636ea4c3d99c46ca64ab07d84 |
| institution | Directory Open Access Journal |
| issn | 1806-9290 |
| language | English |
| last_indexed | 2024-12-20T16:55:04Z |
| publishDate | 2021-08-01 |
| publisher | Sociedade Brasileira de Zootecnia |
| record_format | Article |
| series | Revista Brasileira de Zootecnia |
| spelling | doaj.art-add0e06636ea4c3d99c46ca64ab07d842022-12-21T19:32:44ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-92902021-08-015010.37496/rbz5020210012Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pearMarcos Neves Lopeshttps://orcid.org/0000-0002-1562-3919Gil Mario Ferreira Gomeshttps://orcid.org/0000-0003-4229-0395Theyson Duarte Maranhãohttps://orcid.org/0000-0002-1084-2418Walisson Marques Silveirahttps://orcid.org/0000-0003-2033-3286Roberto Cláudio Fernandes Franco Pompeuhttps://orcid.org/0000-0002-4099-3575Rodrigo Gregório da Silvahttps://orcid.org/0000-0002-0062-7554Marlos Alves Bezerrahttps://orcid.org/0000-0002-8622-0770Magno José Duarte Cândidohttps://orcid.org/0000-0003-3573-6053ABSTRACT This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) associated with dry and rainy seasons on the photochemical activity of Opuntia ficus-indica (L.) Mill. cv. Gigante. Combinations of N (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha−1 yr−1) and P2O5 (10.0, 70.0, 100.0, 130.0, and 190.0 kg ha−1 yr−1) were evaluated in the dry and rainy seasons in semi-arid regions. A completely randomized block design with split-plot arrangement was adopted with four replications. In Quixadá, the maximum potential quantum efficiency of photosystem II (Fv/Fm) was 0.82, observed in third-order cladodes (rainy season and N/P 75.6/10.0 kg ha−1 yr−1), while in Tejuçuoca, the maximum Fv/Fm was 0.81, found in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha−1 yr−1). In Quixadá, the maximum electron transport rate (ETR) was 31.6 μmol m−2 s−1 in 2nd/3rd order cladodes (rainy season and N/P 10.0/190.0 kg ha−1 yr−1), and in Tejuçuoca, the maximum ETR was 24.1 μmol m−2 s−1, in second-order cladodes (rainy season and N/P 110.1/10.0 kg ha−1 yr−1). In Quixadá and Tejuçuoca, higher values of Fv/Fm and ETR were observed in the rainy season. In Quixadá, the maximum fluorescence decrease ratio (FDR) was 4.04 in third-order cladodes (rainy season and N/P 10.0/114.8 kg ha−1 yr−1), while in Tejuçuoca, the maximum FDR was 6.93, found in 2nd/3rd order cladodes (rainy season and N/P 190.0/10.0 kg ha−1 yr−1). In Quixadá and Tejuçuoca, there was predominance of higher FDR values in the rainy season. Nitrogen, phosphorus, and water status modulate the photochemical efficiency of cladodes of cactus pear cv. Gigante in semi-arid regions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100506&tlng=eneffective quantum efficiency of PSIIelectron transport ratefertilizationwater stress |
| spellingShingle | Marcos Neves Lopes Gil Mario Ferreira Gomes Theyson Duarte Maranhão Walisson Marques Silveira Roberto Cláudio Fernandes Franco Pompeu Rodrigo Gregório da Silva Marlos Alves Bezerra Magno José Duarte Cândido Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear Revista Brasileira de Zootecnia effective quantum efficiency of PSII electron transport rate fertilization water stress |
| title | Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear |
| title_full | Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear |
| title_fullStr | Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear |
| title_full_unstemmed | Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear |
| title_short | Photochemical activity modulated by water, nitrogen, and phosphorus status in cactus pear |
| title_sort | photochemical activity modulated by water nitrogen and phosphorus status in cactus pear |
| topic | effective quantum efficiency of PSII electron transport rate fertilization water stress |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982021000100506&tlng=en |
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