Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes
The aim of the study was to investigate the growth responses of African yam bean (Sphenostylis sternocarpa (Hochst. ex A. Rich.) Harms (AYB) to cadmium pollution. Top garden soil (0 – 10 cm) was obtained as pooled and polluted with cadmium (as CdCl2) at the rate of 12 mg kg-1, which is equivalent t...
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| Format: | Article |
| Language: | English |
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University of Ljubljana Press (Založba Univerze v Ljubljani)
2019-12-01
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| Series: | Acta Agriculturae Slovenica |
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| Online Access: | https://journals.uni-lj.si/aas/article/view/12890 |
| _version_ | 1797758967435231232 |
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| author | Pascal Chukwuebuka OKOYE Geoffery Obinna ANOLIEFO Beckley IKHAJIAGBE Edokpolor Osaze OHANMU Francis Aibuedefe IGIEBOR Ephraim ALIU |
| author_facet | Pascal Chukwuebuka OKOYE Geoffery Obinna ANOLIEFO Beckley IKHAJIAGBE Edokpolor Osaze OHANMU Francis Aibuedefe IGIEBOR Ephraim ALIU |
| author_sort | Pascal Chukwuebuka OKOYE |
| collection | DOAJ |
| description |
The aim of the study was to investigate the growth responses of African yam bean (Sphenostylis sternocarpa (Hochst. ex A. Rich.) Harms (AYB) to cadmium pollution. Top garden soil (0 – 10 cm) was obtained as pooled and polluted with cadmium (as CdCl2) at the rate of 12 mg kg-1, which is equivalent to 3 times the ecotoxicological screening value of Cd. The polluted soils were made ready for use 3 days later. Nine selected AYB accessions (TSs-87, TSs-89, TSs-90, TSs-91, TSs-92, TSs-93, TSs-94, TSs-95, and TSs-96) were pre-soaked for 30 minutes and then sown in the polluted and unpolluted soils. Data collected were subjected to ANOVA, and means were separated at 95 % confidence interval. Results showed that incidence of cadmium pollution significantly delayed seedling emergence in all tested AYB accessions by at least one day (p < 0.05). Despite exposure to Cd, TSs-96 attained 50 % emergence faster than other accessions. Although there were general reductions in yield due to exposure to Cd, TSs-92 showed the least percentage yield reduction (50 %), compared to 74 % yield reduction in TSs-93, thereby suggesting a comparatively better yield capacity compared to the other test accessions. Overall, decrease in total chlorophyll content seems to be the major reason of injury in Cd-exposed plants.
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| first_indexed | 2024-03-12T18:37:37Z |
| format | Article |
| id | doaj.art-2836d210c43746a1acb518b8cd361cd4 |
| institution | Directory Open Access Journal |
| issn | 1854-1941 |
| language | English |
| last_indexed | 2024-03-12T18:37:37Z |
| publishDate | 2019-12-01 |
| publisher | University of Ljubljana Press (Založba Univerze v Ljubljani) |
| record_format | Article |
| series | Acta Agriculturae Slovenica |
| spelling | doaj.art-2836d210c43746a1acb518b8cd361cd42023-08-02T07:55:37ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412019-12-01114210.14720/aas.2019.114.2.619282Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypesPascal Chukwuebuka OKOYE0Geoffery Obinna ANOLIEFO1Beckley IKHAJIAGBE2Edokpolor Osaze OHANMU3Francis Aibuedefe IGIEBOR4Ephraim ALIU5University of BeninUniversity of BeninUniversity of BeninEdo UniversityEdo UniversityUniversity of Benin The aim of the study was to investigate the growth responses of African yam bean (Sphenostylis sternocarpa (Hochst. ex A. Rich.) Harms (AYB) to cadmium pollution. Top garden soil (0 – 10 cm) was obtained as pooled and polluted with cadmium (as CdCl2) at the rate of 12 mg kg-1, which is equivalent to 3 times the ecotoxicological screening value of Cd. The polluted soils were made ready for use 3 days later. Nine selected AYB accessions (TSs-87, TSs-89, TSs-90, TSs-91, TSs-92, TSs-93, TSs-94, TSs-95, and TSs-96) were pre-soaked for 30 minutes and then sown in the polluted and unpolluted soils. Data collected were subjected to ANOVA, and means were separated at 95 % confidence interval. Results showed that incidence of cadmium pollution significantly delayed seedling emergence in all tested AYB accessions by at least one day (p < 0.05). Despite exposure to Cd, TSs-96 attained 50 % emergence faster than other accessions. Although there were general reductions in yield due to exposure to Cd, TSs-92 showed the least percentage yield reduction (50 %), compared to 74 % yield reduction in TSs-93, thereby suggesting a comparatively better yield capacity compared to the other test accessions. Overall, decrease in total chlorophyll content seems to be the major reason of injury in Cd-exposed plants. https://journals.uni-lj.si/aas/article/view/12890toxicityheavy metalSphenostylis stenocarpacadmiumyield |
| spellingShingle | Pascal Chukwuebuka OKOYE Geoffery Obinna ANOLIEFO Beckley IKHAJIAGBE Edokpolor Osaze OHANMU Francis Aibuedefe IGIEBOR Ephraim ALIU Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes Acta Agriculturae Slovenica toxicity heavy metal Sphenostylis stenocarpa cadmium yield |
| title | Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes |
| title_full | Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes |
| title_fullStr | Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes |
| title_full_unstemmed | Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes |
| title_short | Cadmium toxicity in African yam bean (Sphenostylis stenocarpa (HOCHST. EX A.RICH.) HARMS genotypes |
| title_sort | cadmium toxicity in african yam bean sphenostylis stenocarpa hochst ex a rich harms genotypes |
| topic | toxicity heavy metal Sphenostylis stenocarpa cadmium yield |
| url | https://journals.uni-lj.si/aas/article/view/12890 |
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