Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light
Lack of germination or low germination due to seed dormancy prevents successful crop establishment in several important plants. To determine the presence of innate seed dormancy and effects of stress-related plant hormones on germination performance of Teff (Eragrostis tef) seeds, we primed seeds in...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Centro Internacional de Agricultura Tropical
2019-07-01
|
| Series: | Tropical Grasslands-Forrajes Tropicales |
| Online Access: | http://www.tropicalgrasslands.info/index.php/tgft/article/view/475 |
| _version_ | 1818547045088100352 |
|---|---|
| author | Iskender Tiryaki Sakir Anil Kaplan |
| author_facet | Iskender Tiryaki Sakir Anil Kaplan |
| author_sort | Iskender Tiryaki |
| collection | DOAJ |
| description | Lack of germination or low germination due to seed dormancy prevents successful crop establishment in several important plants. To determine the presence of innate seed dormancy and effects of stress-related plant hormones on germination performance of Teff (Eragrostis tef) seeds, we primed seeds in 1% KNO3 for 24 hours in dark conditions at 21 ± 0.5 ºC along with varying concentrations of chemicals known to influence seed germination, including: acetyl salicylic acid (ASA); methyl jasmonate (JA-Me); giberellic acid (GA3); and indole acetic acid (IAA). Primed seeds were incubated either in constant light (210 µM/m2/s) or in darkness at 21 ± 0.5 ºC. The results indicated that primingsignificantly improved final germination percentage (FGP) in both light (92.5%) and dark (89.4%) conditions compared with untreated seeds. The inclusion of plant hormones in the priming media generally had limited effects, except for 10 mM ASA (94.5%) and 100 mM GA3 (92.5%). ASA generally provided faster seed germination than seeds primed in 1% KNO3 only, while the other plant hormones had no effect on the time required for 50% of FGP in the dark. Priming had no significant effect on time span of germination in either light or dark incubation conditions. The results demonstrate that E. tef has light-inducible seed germination and about half of freshly harvested seeds can be dormant, which can be eliminated to some extent by priming seeds in 1% KNO3. |
| first_indexed | 2024-12-12T08:01:22Z |
| format | Article |
| id | doaj.art-dc33a7ab099a4f07ab0272f79e41dbf0 |
| institution | Directory Open Access Journal |
| issn | 2346-3775 |
| language | English |
| last_indexed | 2024-12-12T08:01:22Z |
| publishDate | 2019-07-01 |
| publisher | Centro Internacional de Agricultura Tropical |
| record_format | Article |
| series | Tropical Grasslands-Forrajes Tropicales |
| spelling | doaj.art-dc33a7ab099a4f07ab0272f79e41dbf02022-12-22T00:32:08ZengCentro Internacional de Agricultura TropicalTropical Grasslands-Forrajes Tropicales2346-37752019-07-017324425110.17138/tgft(7)244-251261Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of lightIskender Tiryaki0Sakir Anil KaplanCanakkale Onsekiz Mart UniversityLack of germination or low germination due to seed dormancy prevents successful crop establishment in several important plants. To determine the presence of innate seed dormancy and effects of stress-related plant hormones on germination performance of Teff (Eragrostis tef) seeds, we primed seeds in 1% KNO3 for 24 hours in dark conditions at 21 ± 0.5 ºC along with varying concentrations of chemicals known to influence seed germination, including: acetyl salicylic acid (ASA); methyl jasmonate (JA-Me); giberellic acid (GA3); and indole acetic acid (IAA). Primed seeds were incubated either in constant light (210 µM/m2/s) or in darkness at 21 ± 0.5 ºC. The results indicated that primingsignificantly improved final germination percentage (FGP) in both light (92.5%) and dark (89.4%) conditions compared with untreated seeds. The inclusion of plant hormones in the priming media generally had limited effects, except for 10 mM ASA (94.5%) and 100 mM GA3 (92.5%). ASA generally provided faster seed germination than seeds primed in 1% KNO3 only, while the other plant hormones had no effect on the time required for 50% of FGP in the dark. Priming had no significant effect on time span of germination in either light or dark incubation conditions. The results demonstrate that E. tef has light-inducible seed germination and about half of freshly harvested seeds can be dormant, which can be eliminated to some extent by priming seeds in 1% KNO3.http://www.tropicalgrasslands.info/index.php/tgft/article/view/475 |
| spellingShingle | Iskender Tiryaki Sakir Anil Kaplan Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light Tropical Grasslands-Forrajes Tropicales |
| title | Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light |
| title_full | Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light |
| title_fullStr | Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light |
| title_full_unstemmed | Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light |
| title_short | Enhanced germination performance of dormant seeds of <i>Eragrostis tef</i> in the presence of light |
| title_sort | enhanced germination performance of dormant seeds of i eragrostis tef i in the presence of light |
| url | http://www.tropicalgrasslands.info/index.php/tgft/article/view/475 |
| work_keys_str_mv | AT iskendertiryaki enhancedgerminationperformanceofdormantseedsofieragrostistefiinthepresenceoflight AT sakiranilkaplan enhancedgerminationperformanceofdormantseedsofieragrostistefiinthepresenceoflight |