Effect of high temperatures on seed germination of Prosopis caldenia Burk

Villalobos, Ana Elena de; Peláez, D.V.; Bóo, Roberto M.; Mayor, M.D.; Elı́a, Omar R.

doi:10.1006/jare.2002.1004

Cited by 29 publications

(19 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, it is necessary to know the germinative response in the new possible scenario. Other works have studied the post germination behavior in arid and semiarid lands in different species (Kulkarni et al, 2007;Moreno and Oechel, 1991;Villalobos et al, 2002) to design the best strategy of conservation.…”

Section: Discussionmentioning

confidence: 99%

“…The germination response to temperature and exposure time varies depending on the species or even the origin of the seed population (Pe´rez and Pita, 1996), however, the range of temperatures and time exposure used by former researchers was between 50 and 70 1C as a lower limit and 190-200 1C as an upper limit (Clark and Wilson, 1994;Nu´n˜ez and Calvo, 2000;Villalobos et al, 2002).…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Effect of heat and ash treatments on germination of Pinus pinaster and Cistus laurifolius

Herrero

Martín

Bravo

2007

Journal of Arid Environments

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Effect of heat and ash treatments on germination of Pinus pinaster and Cistus laurifolius

Herrero

Martín

Bravo

2007

Journal of Arid Environments

View full text Add to dashboard Cite

“…1992a), passage through the digestive tract of domestic livestock (Peinetti et al . 1993) and relatively high temperatures applied for a few minutes (de Villalobos et al . 2002), thus disrupting the seed coat if the critical temperature is reached (Morrison et al .…”

Section: Discussionmentioning

confidence: 99%

“…Methods of scarification included two groups of pod segments exposed to 300°C and 600°C for 5 min, respectively (de Villalobos et al . 2002).…”

Section: Methodsmentioning

confidence: 99%

Effect of a postfire environment on the establishment of Prosopis caldenia seedlings in central semiarid Argentina

et al. 2007

View full text Add to dashboard Cite

The objective of this work was to evaluate postfire environmental effects on the emergence, survival and growth of Prosopis caldenia seedlings in relation to different controlled fire frequencies, seed scarification methods, and planting site. Seedling emergence was significantly higher in experimental units exposed twice and three times to controlled fire than in unburned experimental units. The highest average seedling survival was recorded with triple exposure to controlled fires. Emergence, survival and growth of seedlings from seeds exposed to acid scarification and 600°C for 5 min were higher in the burned experimental units than in the unburned ones. In the former, seedling survival was higher beneath a P. caldenia canopy than in an adjacent open site, though seedling emergence was similar in both planting sites. Our results suggest that postfire conditions characterized by a reduction in the vegetative cover and competition interference and an increase in soil temperatures and nutrients levels (e.g. nitrogen and phosphorus) may facilitate the establishment of P. caldenia seedlings in the Caldenal.

show abstract

“…Most published results indicate a positive effect of temperature increase on the seed germination process [159], but an experiment on 17 tree species in elevated temperature and CO 2 concentration [160] showed that long-term exposure of the seeds to high temperature is probably the main cause of the decrease in seed germination. Moreover, high temperatures are the cause of thermo-dormant changes, which are variable depending on the genotype; thus, temperature-dependent hormones and enzymes may be inactivated [161]. After all, in many cases, unlike in the above-mentioned study, high temperature breaks seed dormancy and stimulates initiation of germination [162].…”

Section: The Impact Of Phylogeny On Plant Phenologymentioning

confidence: 96%

Adaptation of Forest Trees to Rapidly Changing Climate

Kijowska‐Oberc

Leśniewska

Kamiński

et al. 2020

Forests

View full text Add to dashboard Cite

Climate change leads to global drought-induced stress and increased plant mortality. Tree species living in rapidly changing climate conditions are exposed to danger and must adapt to new climate conditions to survive. Trees respond to changes in the environment in numerous ways. Physiological modulation at the seed stage, germination strategy and further development are influenced by many different factors. We review forest abiotic threats (such as drought and heat), including biochemical responses of plants to stress, and biotic threats (pathogens and insects) related to global warming. We then discus the varied adaptations of tree species to changing climate conditions such as seed resistance to environmental stress, improved by an increase in temperature, affinity to specific fungal symbionts, a wide range of tolerance to abiotic environmental conditions in the offspring of populations occurring in continental climate, and germination strategies closely linked to the ecological niche of the species. The existing studies do not clearly indicate whether tree adaptations are shaped by epigenetics or phenology and do not define the role of phenotypic plasticity in tree development. We have created a juxtaposition of literature that is useful in identifying the factors that play key roles in these processes. We compare scientific evidence that species distribution and survival are possible due to phenotypic plasticity and thermal memory with studies that testify that trees’ phenology depends on phylogenesis, but this issue is still open. It is possible that studies in the near future will bring us closer to understanding the mechanisms through which trees adapt to stressful conditions, especially in the context of epigenetic memory in long-lived organisms, and allow us to minimize the harmful effects of climatic events by predicting tree species’ responses or by developing solutions such as assisted migration to mitigate the consequences of these phenomena.

show abstract

Effect of high temperatures on seed germination of Prosopis caldenia Burk

Cited by 29 publications

References 19 publications

Effect of heat and ash treatments on germination of Pinus pinaster and Cistus laurifolius

Effect of heat and ash treatments on germination of Pinus pinaster and Cistus laurifolius

Effect of a postfire environment on the establishment of Prosopis caldenia seedlings in central semiarid Argentina

Adaptation of Forest Trees to Rapidly Changing Climate

Contact Info

Product

Resources

About