Tolerance of cotton cultivars to water stress induced during seed germination
<p class="Normal1">There is a demand for cotton cultivars more tolerant of abiotic stress conditions, such as drought. This study assessed white and colored cotton genotypes for water stress induced during seed germination using polyethylene glycol 6000 (PEG). We evaluated three whit...
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| Format: | Article |
| Language: | English |
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Instituto Federal de Educação, Ciência e Tecnologia da Paraíba
2021-02-01
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| Series: | Revista Principia |
| Subjects: | |
| Online Access: | https://periodicos.ifpb.edu.br/index.php/principia/article/view/4488 |
| _version_ | 1828100605014441984 |
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| author | Marcella Nunes de Freitas Yuri Zica Senden Juliana Joice Pereira Lima José Bonifácio Alves Guimarães Júnior |
| author_facet | Marcella Nunes de Freitas Yuri Zica Senden Juliana Joice Pereira Lima José Bonifácio Alves Guimarães Júnior |
| author_sort | Marcella Nunes de Freitas |
| collection | DOAJ |
| description | <p class="Normal1">There is a demand for cotton cultivars more tolerant of abiotic stress conditions, such as drought. This study assessed white and colored cotton genotypes for water stress induced during seed germination using polyethylene glycol 6000 (PEG). We evaluated three white cotton cultivars (UFUJP C, UFUJP T, and FM 966) and three colored cotton cultivars (UFUJP 5, UFUJP13, BRS Topázio), subjecting seeds to PEG-induced water stress at osmotic potentials -0.2, -0.4, and -0.6 MPa, during seed germination. The control plot (dose 0 of PEG) was performed for each genotype evaluated. We determined the dry matter of normal seedlings obtained in the germination test and performed the seed absorption curve in water and in PEG solution at -0.2 MPa. All cultivars evaluated showed a reduction in germination and imbibition speed when seeds were submitted to water stress. Cultivars FM 966 and BRS Topázio showed the highest tolerance. There was no difference between the groups of white and colored cotton genotypes for tolerance to water deficit. The better performance of the cultivars to tolerance did not reflect a higher imbibition speed of seeds.</p> |
| first_indexed | 2024-04-11T08:31:34Z |
| format | Article |
| id | doaj.art-cbb15d66add94198808caeccd510f359 |
| institution | Directory Open Access Journal |
| issn | 1517-0306 2447-9187 |
| language | English |
| last_indexed | 2024-04-11T08:31:34Z |
| publishDate | 2021-02-01 |
| publisher | Instituto Federal de Educação, Ciência e Tecnologia da Paraíba |
| record_format | Article |
| series | Revista Principia |
| spelling | doaj.art-cbb15d66add94198808caeccd510f3592022-12-22T04:34:29ZengInstituto Federal de Educação, Ciência e Tecnologia da ParaíbaRevista Principia1517-03062447-91872021-02-01153465310.18265/1517-0306a2020v1n53p46-531299Tolerance of cotton cultivars to water stress induced during seed germinationMarcella Nunes de Freitas0Yuri Zica Senden1Juliana Joice Pereira Lima2José Bonifácio Alves Guimarães Júnior3Universidade Federal de Uberlândia (UFU)Universidade Federal de Uberlândia (UFU)Universidade Federal do Piauí (UFPI)Universidade Federal do Piauí (UFPI)<p class="Normal1">There is a demand for cotton cultivars more tolerant of abiotic stress conditions, such as drought. This study assessed white and colored cotton genotypes for water stress induced during seed germination using polyethylene glycol 6000 (PEG). We evaluated three white cotton cultivars (UFUJP C, UFUJP T, and FM 966) and three colored cotton cultivars (UFUJP 5, UFUJP13, BRS Topázio), subjecting seeds to PEG-induced water stress at osmotic potentials -0.2, -0.4, and -0.6 MPa, during seed germination. The control plot (dose 0 of PEG) was performed for each genotype evaluated. We determined the dry matter of normal seedlings obtained in the germination test and performed the seed absorption curve in water and in PEG solution at -0.2 MPa. All cultivars evaluated showed a reduction in germination and imbibition speed when seeds were submitted to water stress. Cultivars FM 966 and BRS Topázio showed the highest tolerance. There was no difference between the groups of white and colored cotton genotypes for tolerance to water deficit. The better performance of the cultivars to tolerance did not reflect a higher imbibition speed of seeds.</p>https://periodicos.ifpb.edu.br/index.php/principia/article/view/4488gossypium hirsutum l.water deficitpolyethylene glycolphysiological potential |
| spellingShingle | Marcella Nunes de Freitas Yuri Zica Senden Juliana Joice Pereira Lima José Bonifácio Alves Guimarães Júnior Tolerance of cotton cultivars to water stress induced during seed germination Revista Principia gossypium hirsutum l. water deficit polyethylene glycol physiological potential |
| title | Tolerance of cotton cultivars to water stress induced during seed germination |
| title_full | Tolerance of cotton cultivars to water stress induced during seed germination |
| title_fullStr | Tolerance of cotton cultivars to water stress induced during seed germination |
| title_full_unstemmed | Tolerance of cotton cultivars to water stress induced during seed germination |
| title_short | Tolerance of cotton cultivars to water stress induced during seed germination |
| title_sort | tolerance of cotton cultivars to water stress induced during seed germination |
| topic | gossypium hirsutum l. water deficit polyethylene glycol physiological potential |
| url | https://periodicos.ifpb.edu.br/index.php/principia/article/view/4488 |
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