Allelopathic Effect of Castanopsis Kawakamii Forest Litter on Seed Germination of Small Philippine Acacia (Acacia Confusa)

Jin, Ma

doi:10.15666/aeer/1706_1510315116

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…Plants produce numerous secondary metabolites, including unique compounds that are only produced by specific plant species (Jones et al, 2019). After being liberated into the soil via decomposition of plant litter, some compounds with allelopathic potential affect the germination and growth of understory plant species (Jin et al, 2019). Similar findings were obtained in response to the litter produced by Cunninghamia lanceolata in greenhouse experiments (Liu et al, 2017).…”

Section: Discussionmentioning

confidence: 71%

“…Forest litter is an important component of forest ecosystems, and it affects the natural regeneration of forests through both physical and chemical factors (Liu et al, 2018;Jin et al, 2019;Veen et al, 2019;Luo et al, 2020). Plants produce numerous secondary metabolites, including unique compounds that are only produced by specific plant species (Jones et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

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Allelopathic potential and allelochemical composition in different soil layers of Rhododendron delavayi forest, southwest China

Quan

Wang²,

Li³

et al. 2022

Front. Ecol. Evol.

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Forests habituated by Rhododendron delavayi often lack understory vegetation, which could possibly be a consequence of allelopathy. It is a phenomenon by virtue of which certain plant species produce allelochemicals that affect the growth and behavior of surrounding plants. To elucidate the allelopathic potential and allelochemicals present in the different layers of a R. delavayi forest, extracts obtained from three layers of the forest were used for seed germination bioassays and gas chromatography-mass spectrometry (GC–MS) analysis. Aqueous extracts of the litter and humus layers significantly inhibited the seed germination of R. delavayi, Festuca arundinacea, and Lolium perenne, with the litter layer causing the strongest inhibitory effect. A total of 26 allelochemicals were identified in the litter, humus, and soil layers by GC–MS analysis. The primary allelochemicals in the soil and humus layer were organic acids, while the main allelochemicals in the litter layer were phenolic acids. The redundancy analysis revealed the significance of total nitrogen (TN) and relative water content (RWC) in explaining the distribution of the allelochemicals. The results indicated that the litter layer exerted the maximum allelopathic effect due to presence of maximum amount of allelochemical especially the phenolic acids.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Allelopathic potential and allelochemical composition in different soil layers of Rhododendron delavayi forest, southwest China

Quan

Wang²,

Li³

et al. 2022

Front. Ecol. Evol.

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“…There are several parameters that contribute to the low regeneration of Castanopsis, namely predation and competition. In a previous study of Castanopsis kawakamii forest, low regeneration and seedling growth was reported to be influenced by the low total nitrogen and total phosphorus in the soil as well as the presence of allelopathy (Jin et al 2019) brought about by invasives usually. Another study by Wibowo (2006) revealed the dominance of Castanopsis decrease due to low phosphorus on the soil and their association with mycorrhiza.…”

Section: Vegetation Analysis Of Cibodas Remnant Forestmentioning

confidence: 98%

Vegetation community and species association of Castanopsis spp. at its habitat in the remnant forest of Cibodas Botanical Garden, Indonesia

Nurdiana

2021

Biodiversitas

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Abstract. Nurdiana DR, Buot IE Jr. 2021. Vegetation community and species association of Castanopsis spp. at its habitat in the remnant forest of Cibodas Botanical Garden, Indonesia. Biodiversitas 22: 4799-4807. Castanopsis is one of the genera of Fagaceae with a large distribution in Indonesia. The genus can be found easily in Java, Sumatera and Kalimantan. Several studies have found an association between Castanopsis and environmental factors dealing with the diversity, dispersal and propagation. So far, there has been no agreement on how Castanopsis interacts with other species within the same genus in nature, especially in the remnant forest under a fragmented state. The objectives of the study were to determine the vegetation associated with Castanopsis and whether each species of the genus Castanopsis co-occur within the remnant forest? A total of 60 plots have been studied in 3 different sites of the remnant forest. The nested sampling method was used to identify the trees, saplings and seedlings. Sixty-seven total species of trees, 140 species of saplings and 121 species of seedlings in Cibodas Botanical Garden remnant forest were recorded. The diversity index for tree, sapling and seedling were 3.5, 3.9 and 4.1, respectively, while evenness index for tree, sapling and seedling were 0.81, 0.8 and 0.85 respectively. The interspecific association of the genus Castanopsis was restricted to C. javanica x C. tungurrut. They are associated positively at sapling stage with Jaccard index of 0.2. However, at tree stage, there was no association out of the pair, C. javanica x C. tungurrut. Competition within genus Castanopsis occurred in the same habitat, though at a lesser degree which needs to be studied further. Dominance of many pioneer species (Oreocnide integrifolia (Gaudich.) Miq., Ostodes paniculata Blume, Cestrum aurantiacum Lindl. and others) at tree stage had been evident. This implies that the Cibodas remnant forest is still in the process of succession towards a more stable climax state.

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Roots, Litter, and Seasonal Drought Together Inhibit Plant Growth in the Herbaceous Layer in a Subtropical Moist Forest of Southwestern China

Liu

Kong

et al. 2023

Forests

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The mechanisms of the maintenance of plant diversity in forests have been extensively studied because of their ecological importance. The study of the regeneration and growth dynamics of herbaceous understory communities in forests is relatively more common than that of woody plant overstory and understory communities. To investigate which environmental factors (plant roots, forest litter, or both) control seedling survival, growth, and production in the herbaceous layer in the context of increasingly severe seasonal drought caused by global climate change, we performed a seedling growth experiment of the herbaceous layer influenced by the interaction of plant roots and forest litter through a manipulative complete block experiment, crossed with an irrigation experiment, in a montane subtropical moist evergreen broad-leaved forest of southwestern China. Within both the control and watered plots, we established four experimental subplots with plant roots and forest litter included (R+L+); plant roots included, but forest litter excluded (R+L−); plant roots excluded, but forest litter included (R−L+); and both plant roots and forest litter excluded (R−L−). After one year, the R+L+ treatment in the control plot had statistically less species richness and plant individuals, shorter mean and maximum seedling heights, and less dry biomass of plant seedlings than those in the other seven experimental treatments. Across all the experimental replicates, the pooled data showed that plant roots, forest litter, and seasonal drought, together, inhibited all the dependent herbaceous growth variables. Our study demonstrates how plant roots, forest litter, and seasonal drought synergistically regulate seedling establishment and the growth of the herbaceous layer in tropical and subtropical forest understory. This synergistic regulation changes plant physiological responses and forest evolution through controlling plant diversity and the individual richness of the herbaceous layer in the context of sustained global climate change.

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Allelopathic Effect of Castanopsis Kawakamii Forest Litter on Seed Germination of Small Philippine Acacia (Acacia Confusa)

Cited by 4 publications

References 12 publications

Allelopathic potential and allelochemical composition in different soil layers of Rhododendron delavayi forest, southwest China

Allelopathic potential and allelochemical composition in different soil layers of Rhododendron delavayi forest, southwest China

Vegetation community and species association of Castanopsis spp. at its habitat in the remnant forest of Cibodas Botanical Garden, Indonesia

Roots, Litter, and Seasonal Drought Together Inhibit Plant Growth in the Herbaceous Layer in a Subtropical Moist Forest of Southwestern China

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