Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage
Background: Soil salinity is an increasing problem in the world and the main obstacle to agricultural productivity especially in areas where irrigation is necessary. Adoption of salt tolerant genotype is more important here and so screening of salt tolerant cultivars is essential. For that, quick me...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Farm to Fork Foundation
2019-04-01
|
| Series: | Fundamental and Applied Agriculture |
| Subjects: | |
| Online Access: | http://www.ejmanager.com/fulltextpdf.php?mno=18483 |
| _version_ | 1819229748377681920 |
|---|---|
| author | Ashaduzzaman Sagar1; Jannat E Tajkia1; Md. Eakramul Haque1 2; Md. Solaiman Ali Fakir1; A.K.M Zakir Hossain |
| author_facet | Ashaduzzaman Sagar1; Jannat E Tajkia1; Md. Eakramul Haque1 2; Md. Solaiman Ali Fakir1; A.K.M Zakir Hossain |
| author_sort | Ashaduzzaman Sagar1; Jannat E Tajkia1; Md. Eakramul Haque1 |
| collection | DOAJ |
| description | Background: Soil salinity is an increasing problem in the world and the main obstacle to agricultural productivity especially in areas where irrigation is necessary. Adoption of salt tolerant genotype is more important here and so screening of salt tolerant cultivars is essential. For that, quick method to screen salt-tolerant plants, particularly in early stages of their growth is important. Methodology: For this purpose, some laboratory studies using nine sorghum genotypes were conducted to screen salt tolerant genotypes during germination and seedling growth stages. The genotypes were Hybrid sorgo, Debgiri, BD 703, BD 706, BD 707, BD 713, BD 720, BD 725 and BD 738 and salinity levels were 0 dSm-1 (control), 6 dSm-1, 12 dSm-1 and 18 dSm-1. There were 36 (9×4) treatments in a completely randomized design (CRD) with three replications. Saline treatments were imposed by sea water solution. To screen out the salt-tolerant genotypes germination percentage, rate of germination, vigor index and different physiological parameters i.e. germination stress tolerance index (GSTI), root length stress tolerance index (RLSI), shoot length stress tolerance index (SLSI) and fresh weight stress tolerance index (FSTI) were studied. Key findings: In this study, all the parameters were decreased with increasing salinity. On the basis of the results obtained using above mentioned germination and physiological criteria, sorghum genotypes Hybrid sorgo, BD 703 & BD 707 were categorized as tolerant while Debgiri and BD 713 were found as sensitive ones. Besides these, sorghum genotypes were not tolerant up to 18dSm-1 though some of them were tolerant at 12dSm-1. Conclusion: Overall, these tolerant and sensitive genotypes might be used in the further genetic improvement of the same and different crops. [Fundam Appl Agric 2019; 4(1.000): 735-743] |
| first_indexed | 2024-12-23T11:18:06Z |
| format | Article |
| id | doaj.art-2a39442394154307834cbdf7a5459bb0 |
| institution | Directory Open Access Journal |
| issn | 2518-2021 |
| language | English |
| last_indexed | 2024-12-23T11:18:06Z |
| publishDate | 2019-04-01 |
| publisher | Farm to Fork Foundation |
| record_format | Article |
| series | Fundamental and Applied Agriculture |
| spelling | doaj.art-2a39442394154307834cbdf7a5459bb02022-12-21T17:49:10ZengFarm to Fork FoundationFundamental and Applied Agriculture2518-20212019-04-014173574310.5455/faa.1848318483Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stageAshaduzzaman Sagar1; Jannat E Tajkia1; Md. Eakramul Haque102; Md. Solaiman Ali Fakir1; A.K.M Zakir Hossain1Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, Bangladesh 2On-Farm Research Division, Bangladesh Agricultural Research Institute, Rangpur, BangladeshBackground: Soil salinity is an increasing problem in the world and the main obstacle to agricultural productivity especially in areas where irrigation is necessary. Adoption of salt tolerant genotype is more important here and so screening of salt tolerant cultivars is essential. For that, quick method to screen salt-tolerant plants, particularly in early stages of their growth is important. Methodology: For this purpose, some laboratory studies using nine sorghum genotypes were conducted to screen salt tolerant genotypes during germination and seedling growth stages. The genotypes were Hybrid sorgo, Debgiri, BD 703, BD 706, BD 707, BD 713, BD 720, BD 725 and BD 738 and salinity levels were 0 dSm-1 (control), 6 dSm-1, 12 dSm-1 and 18 dSm-1. There were 36 (9×4) treatments in a completely randomized design (CRD) with three replications. Saline treatments were imposed by sea water solution. To screen out the salt-tolerant genotypes germination percentage, rate of germination, vigor index and different physiological parameters i.e. germination stress tolerance index (GSTI), root length stress tolerance index (RLSI), shoot length stress tolerance index (SLSI) and fresh weight stress tolerance index (FSTI) were studied. Key findings: In this study, all the parameters were decreased with increasing salinity. On the basis of the results obtained using above mentioned germination and physiological criteria, sorghum genotypes Hybrid sorgo, BD 703 & BD 707 were categorized as tolerant while Debgiri and BD 713 were found as sensitive ones. Besides these, sorghum genotypes were not tolerant up to 18dSm-1 though some of them were tolerant at 12dSm-1. Conclusion: Overall, these tolerant and sensitive genotypes might be used in the further genetic improvement of the same and different crops. [Fundam Appl Agric 2019; 4(1.000): 735-743]http://www.ejmanager.com/fulltextpdf.php?mno=18483SorghumCerealSalinityOsmotic stressSea waterPhysiological indices |
| spellingShingle | Ashaduzzaman Sagar1; Jannat E Tajkia1; Md. Eakramul Haque1 2; Md. Solaiman Ali Fakir1; A.K.M Zakir Hossain Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage Fundamental and Applied Agriculture Sorghum Cereal Salinity Osmotic stress Sea water Physiological indices |
| title | Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage |
| title_full | Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage |
| title_fullStr | Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage |
| title_full_unstemmed | Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage |
| title_short | Screening of Sorghum genotypes for salt-tolerance based on seed germination and seedling stage |
| title_sort | screening of sorghum genotypes for salt tolerance based on seed germination and seedling stage |
| topic | Sorghum Cereal Salinity Osmotic stress Sea water Physiological indices |
| url | http://www.ejmanager.com/fulltextpdf.php?mno=18483 |
| work_keys_str_mv | AT ashaduzzamansagar1jannatetajkia1mdeakramulhaque1 screeningofsorghumgenotypesforsalttolerancebasedonseedgerminationandseedlingstage AT 2mdsolaimanalifakir1akmzakirhossain screeningofsorghumgenotypesforsalttolerancebasedonseedgerminationandseedlingstage |