Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L.
The relationships between allelochemicals and environmental factors are a key factor for the growth of plants under rotation. We investigated the allelopathic potential of Amaranthus cruentus L, grown under different temperature conditions in in vitro bioassays. An inhibitory effect on germination...
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| Format: | Article |
| Language: | English |
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University of Ljubljana Press (Založba Univerze v Ljubljani)
2017-09-01
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| Series: | Acta Agriculturae Slovenica |
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| Online Access: | https://journals.uni-lj.si/aas/article/view/12724 |
| _version_ | 1797704254631182336 |
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| author | Maria Elizabeth Cawood Ingrid ALLEMANN James ALLEMANN |
| author_facet | Maria Elizabeth Cawood Ingrid ALLEMANN James ALLEMANN |
| author_sort | Maria Elizabeth Cawood |
| collection | DOAJ |
| description |
The relationships between allelochemicals and environmental factors are a key factor for the growth of plants under rotation. We investigated the allelopathic potential of Amaranthus cruentus L, grown under different temperature conditions in in vitro bioassays. An inhibitory effect on germination and growth of lettuce (Lactuca sativa L.), tomato (Solanum lycopersicum L.), pepper (Capsicum annuum L.) and cucumber (Cucumis sativus L.) was observed when seeds were subjected to the leaf litter of Amaranthus cruentus. Analysis from our study indicated that germination percentage was significantly affected by growth temperatures (T) of the amaranth (P ˂ 0.0001), litter concentration (C) (P ˂ 0.0001), vegetable type (V) (P ˂ 0.0001), the T × V interaction (P = 0.0041) and V × C interaction (P ˂ 0.0001). Pepper was the most sensitive with a decline in germination percentage at increasing concentrations (0, 1 and 5 mg ml-1) of litter. Hypocotyl and seminal root lengths were adversely influenced by the plant litter for all the temperature treatments, although effects were most severe when exposed to the leaf litter of the hot temperature treatment. The inhibition caused by the litter was dependent on growth temperature and concentration, while each vegetable species showed different levels of sensitivity.
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| first_indexed | 2024-03-12T05:17:36Z |
| format | Article |
| id | doaj.art-513e54668db544e78074bbc63554b0eb |
| institution | Directory Open Access Journal |
| issn | 1854-1941 |
| language | English |
| last_indexed | 2024-03-12T05:17:36Z |
| publishDate | 2017-09-01 |
| publisher | University of Ljubljana Press (Založba Univerze v Ljubljani) |
| record_format | Article |
| series | Acta Agriculturae Slovenica |
| spelling | doaj.art-513e54668db544e78074bbc63554b0eb2023-09-03T07:55:55ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412017-09-01109210.14720/aas.2017.109.2.2919116Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L.Maria Elizabeth Cawood0Ingrid ALLEMANN1James ALLEMANN2University of the Free State Bloemfontein South AfricaUniversity of the Free State Bloemfontein South AfricaDepartment of Soil, Crop and Climate Sciences, University of the Free State, Bloemfontein The relationships between allelochemicals and environmental factors are a key factor for the growth of plants under rotation. We investigated the allelopathic potential of Amaranthus cruentus L, grown under different temperature conditions in in vitro bioassays. An inhibitory effect on germination and growth of lettuce (Lactuca sativa L.), tomato (Solanum lycopersicum L.), pepper (Capsicum annuum L.) and cucumber (Cucumis sativus L.) was observed when seeds were subjected to the leaf litter of Amaranthus cruentus. Analysis from our study indicated that germination percentage was significantly affected by growth temperatures (T) of the amaranth (P ˂ 0.0001), litter concentration (C) (P ˂ 0.0001), vegetable type (V) (P ˂ 0.0001), the T × V interaction (P = 0.0041) and V × C interaction (P ˂ 0.0001). Pepper was the most sensitive with a decline in germination percentage at increasing concentrations (0, 1 and 5 mg ml-1) of litter. Hypocotyl and seminal root lengths were adversely influenced by the plant litter for all the temperature treatments, although effects were most severe when exposed to the leaf litter of the hot temperature treatment. The inhibition caused by the litter was dependent on growth temperature and concentration, while each vegetable species showed different levels of sensitivity. https://journals.uni-lj.si/aas/article/view/12724Amaranthus cruentusallelopathyvegetablesgerminationhypocotylseminal root |
| spellingShingle | Maria Elizabeth Cawood Ingrid ALLEMANN James ALLEMANN Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. Acta Agriculturae Slovenica Amaranthus cruentus allelopathy vegetables germination hypocotyl seminal root |
| title | Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. |
| title_full | Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. |
| title_fullStr | Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. |
| title_full_unstemmed | Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. |
| title_short | Influence of altered temperatures on allelopatic properties of Amaranthus cruentus L. |
| title_sort | influence of altered temperatures on allelopatic properties of amaranthus cruentus l |
| topic | Amaranthus cruentus allelopathy vegetables germination hypocotyl seminal root |
| url | https://journals.uni-lj.si/aas/article/view/12724 |
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