FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4367728265> ?p ?o ?g. }

• W4367728265 endingPage "198" @default.
• W4367728265 startingPage "188" @default.
• W4367728265 abstract "Context Fire is an important disturbance regime in grassland communities, since it is responsible for stimulating the regeneration of many species and for maintaining levels of biodiversity. When invasive plants, such as Nassella trichotoma, establish and become widespread in a grassland community, these important fire events can be altered in intensity and frequency, which means that they are able to facilitate the establishment of the exotic species. Therefore, before fire can be recommended as a suitable control technique for invasive species, or alternatively to be integrated into grassland restoration programs, understanding the response of the seeds of exotic species to high temperatures, such as those experienced during a fire, should be well understood. Aims Our aim was to identify their response to a gradient of temperatures associated with different levels of fire intensity. We examined how increased duration of exposure affects their response, and whether seed age or seed moisture content affect the germination response of this species. Methods To gain a fuller understanding of the fire response of N. trichotoma’s seedbank, seeds were collected in 2016, 2017, 2018 and 2019 and then stored until the commencement of the experiments in 2020. Selected seeds were first subjected to an increasing temperature gradient (80°C, 100°C, 120°C, 140°C, and a control), and an increasing duration of exposure (of 1, 3, 6, and 9 min). In the second experiment, one population was selected to test these same temperatures and duration of exposure after the seeds were hydrated to 15%, 50%, or 95%. Last, seedlings were grown for 3 months under glasshouse conditions and then exposed to increasing temperatures (20°C, 60°C, 80°C, 100°C, and 120°C), and an increasing duration of exposure (3, 6, and 9 min). The seedlings were assessed 2 weeks after the heat exposure for signs of damage. Key results It was found that increased temperatures and duration of exposure had a subtle negative effect on germination parameters, including reduced total germination and increased time to 50% germination. The 140°C treatment was seen to be a significant threshold because it killed all the seeds at any duration of exposure. A significant difference among the ages of each seed lot was observed to be a factor on the tested germination metrics, with the oldest tested population (2016) demonstrating the highest germination percentage, uniformity, and rate. Seed germination percentage was significantly reduced for seeds hydrated to 95% compared with the control treatment, whereas no significant difference was observed for the seeds hydrated to 15% and 50%. For the heat treatment of the seedlings, damage to the leaves was observed in the 80°C, 100°C, and 120°C treatments, with some plants in the 120°C treatment experiencing extensive damage prior to resprouting. No seedlings were killed at the tested temperatures. Conclusions Results of this study indicated that fire may be a useful tool for reducing seedbank density by killing a high proportion of the seeds on the soil surface, or located within the top 1 cm of the soil profile, but not for seeds buried more deeply. Efficacy of fire on surface and shallow-buried seeds is improved with high seed moisture content; however, these seeds buried below this depth are still protected by the soil from the lethal effects of temperature. Implications Fire implemented before seed set could be used to effectively kill a large proportion of N. trichotoma seeds. However, for more comprehensive control, it is recommended that chemical treatment is integrated with the fire treatment to improve the overall control efficiency." @default.
• W4367728265 created "2023-05-04" @default.
• W4367728265 creator A5038343597 @default.
• W4367728265 creator A5042965985 @default.
• W4367728265 date "2023-05-03" @default.
• W4367728265 modified "2023-10-18" @default.
• W4367728265 title "The response of Nassella trichotoma (serrated tussock) seeds and seedlings to different levels of fire intensity" @default.
• W4367728265 cites W1557006903 @default.
• W4367728265 cites W1574805496 @default.
• W4367728265 cites W1903437988 @default.
• W4367728265 cites W1954187074 @default.
• W4367728265 cites W1969396791 @default.
• W4367728265 cites W1970091380 @default.
• W4367728265 cites W1975295389 @default.
• W4367728265 cites W1977168972 @default.
• W4367728265 cites W1978394215 @default.
• W4367728265 cites W1987352923 @default.
• W4367728265 cites W1991194120 @default.
• W4367728265 cites W1992553143 @default.
• W4367728265 cites W2003023017 @default.
• W4367728265 cites W2039480523 @default.
• W4367728265 cites W2050900083 @default.
• W4367728265 cites W2101280078 @default.
• W4367728265 cites W2103439878 @default.
• W4367728265 cites W2106063726 @default.
• W4367728265 cites W2107555350 @default.
• W4367728265 cites W2116842732 @default.
• W4367728265 cites W2118677038 @default.
• W4367728265 cites W2132878463 @default.
• W4367728265 cites W2140454530 @default.
• W4367728265 cites W2140671566 @default.
• W4367728265 cites W2143485138 @default.
• W4367728265 cites W2149278258 @default.
• W4367728265 cites W2160824126 @default.
• W4367728265 cites W2171202211 @default.
• W4367728265 cites W2172484229 @default.
• W4367728265 cites W2176324299 @default.
• W4367728265 cites W2180679945 @default.
• W4367728265 cites W2501906687 @default.
• W4367728265 cites W2559874627 @default.
• W4367728265 cites W2773579480 @default.
• W4367728265 cites W2809870614 @default.
• W4367728265 cites W2874314288 @default.
• W4367728265 cites W2901477556 @default.
• W4367728265 cites W2931608453 @default.
• W4367728265 cites W2948404971 @default.
• W4367728265 cites W2963667561 @default.
• W4367728265 cites W2965322995 @default.
• W4367728265 cites W2973432795 @default.
• W4367728265 cites W2988248899 @default.
• W4367728265 cites W3030477040 @default.
• W4367728265 cites W3033947885 @default.
• W4367728265 cites W3035116154 @default.
• W4367728265 cites W3038373800 @default.
• W4367728265 cites W3049176565 @default.
• W4367728265 cites W3081642195 @default.
• W4367728265 cites W3096167638 @default.
• W4367728265 cites W3099252497 @default.
• W4367728265 cites W3125841260 @default.
• W4367728265 cites W3211087244 @default.
• W4367728265 cites W4200381131 @default.
• W4367728265 cites W4296588506 @default.
• W4367728265 doi "https://doi.org/10.1071/bt22078" @default.
• W4367728265 hasPublicationYear "2023" @default.
• W4367728265 type Work @default.
• W4367728265 citedByCount "0" @default.
• W4367728265 crossrefType "journal-article" @default.
• W4367728265 hasAuthorship W4367728265A5038343597 @default.
• W4367728265 hasAuthorship W4367728265A5042965985 @default.
• W4367728265 hasBestOaLocation W43677282651 @default.
• W4367728265 hasConcept C100701293 @default.
• W4367728265 hasConcept C130217890 @default.
• W4367728265 hasConcept C141282968 @default.
• W4367728265 hasConcept C144024400 @default.
• W4367728265 hasConcept C144027150 @default.
• W4367728265 hasConcept C149923435 @default.
• W4367728265 hasConcept C151730666 @default.
• W4367728265 hasConcept C18903297 @default.
• W4367728265 hasConcept C2775835988 @default.
• W4367728265 hasConcept C2776096895 @default.
• W4367728265 hasConcept C2779343474 @default.
• W4367728265 hasConcept C2908647359 @default.
• W4367728265 hasConcept C59822182 @default.
• W4367728265 hasConcept C6557445 @default.
• W4367728265 hasConcept C86803240 @default.
• W4367728265 hasConcept C88776829 @default.
• W4367728265 hasConceptScore W4367728265C100701293 @default.
• W4367728265 hasConceptScore W4367728265C130217890 @default.
• W4367728265 hasConceptScore W4367728265C141282968 @default.
• W4367728265 hasConceptScore W4367728265C144024400 @default.
• W4367728265 hasConceptScore W4367728265C144027150 @default.
• W4367728265 hasConceptScore W4367728265C149923435 @default.
• W4367728265 hasConceptScore W4367728265C151730666 @default.
• W4367728265 hasConceptScore W4367728265C18903297 @default.
• W4367728265 hasConceptScore W4367728265C2775835988 @default.
• W4367728265 hasConceptScore W4367728265C2776096895 @default.
• W4367728265 hasConceptScore W4367728265C2779343474 @default.
• W4367728265 hasConceptScore W4367728265C2908647359 @default.

• next