Seed bank and regeneration dynamics of <Emphasis Type="Italic">Emmenopterys henryi</Emphasis> population on the western side of Wuyi Mountain,South China     

Lianjin Guo  Pingping Xue  Mei Li  Xinghua Shao 《林业研究》2017,28(5):943-952

Emmenopterys henryi Oliv. (Rubiaceae) is an endangered tree species that is native to China. The wild populations of E. henryi have declined rapidly because of its poor natural regeneration, but the actual regeneration processes are not yet understood. In field tracking surveys and experiments in the Wuyishan Nature Reserve in Southeast China to determine the most important stage that affects the regeneration process, seed bank characteristics, seed germination, and seedling growth dynamics were studied in the typical habitats of E. henryi, Phyllostachys pubescens and broad-leaved forests. Results showed that in both P. pubescens and broad-leaved forests, more than 70% of the E. henryi seeds were distributed in moss and litter layers, and few were found in the soil beneath them. However, seed germination in the soil layer was significantly higher than in the moss and litter layers. Seed density, overall seed quality, and germination rate in the broad-leaved forest were significantly higher than in P. pubescens forest. Seed germination was highest in the microsites around the edge of the crown projection area of E. henryi mother trees. The order of survival rate of the seedlings on different ground surfaces was soil > moss > litter. In both habitats, the average seed density was 24.9 seeds m^?2, and the total germination rate was less than 3.5‰. However, seedlings developed from only 1% of the germinated seeds, indicating that the seed germination is the most important stage in the natural regeneration of E. henryi.  相似文献   

The effect of weevil and fungal attacks on the germination ofQuercus robur acorns     

Christian Andersson 《Forest Ecology and Management》1992,50(3-4):247-251

Oak,Quercus robur, acorns are sometines attacked by a weevil or infested by fungi (Murray, 1974). The number of acorns produced varies greatly from year to year. Acorns produced in the years between mast years may escape these weevil or fungal attacks, be dispersed and germinate.

Acorns were collected annually from 1983 to 1989 from five oak trees in southern Sweden. The percentage of acorns attacked by a weevil or fungi, or both, were monitored and the acorns' ability to germinate was tested.

Not all acorns were damaged in low crop years; the proportion of undamaged acorns varied between 33 and 69%. The proportion of weevil-attacked acorns differed significantly between the years. The proportion of acorns that were able to germinate in each category did not vary significantly between years. The germination ability was significantly higher in undamaged or fungi-infested acorns.  相似文献   

In vitro germination and shoot proliferation of the threatened species <Emphasis Type="Italic">Cinchona officinalis</Emphasis> L (Rubiaceae).     

Rosa Armijos-González  César Pérez-Ruiz 《林业研究》2016,27(6):1229-1236

Cinchona officinalis (Rubiaceae) is an endemic species of the Loja Valley in southern Ecuador with medicinal uses. Because of over-exploitation in the nineteenth century and more recent disturbances to its ecosystem, C. officinalis populations are threatened. Currently, natural regeneration of the populations is low, despite its high plant regeneration and seed formation capacity. In the present study, an efficient protocol for germination, shoot proliferation and plantlets regeneration was developed for this species. Phenolic content and germination rate of C. officinalis seeds were compared with a control species, C. pubescens. Nodal segments from seedlings of C. officinalis were cultured on Gamborg medium supplemented with different combinations of plant growth regulators. Because the phenol content is high in C. officinalis, the phenolic should be removed with hydrogen peroxide or water washes to stimulate germination. Shoots and callus developed from nodal segments within 45 days using most of the tested combinations of plant growth regulators. The best rates of shoot proliferation, callus formation and adventitious buds were obtained in medium supplemented with 5.0 mg L^?1 6-benzyl-aminopurine and 3.0 mg L^?1 indole-3-butyric acid.  相似文献   

Regeneration dynamics of mixed stands of <Emphasis Type="Italic">Pinus pinaster</Emphasis> Ait. and <Emphasis Type="Italic">Pinus pinea</Emphasis> L. in Central Spain     

Daniel Moreno-Fernández  Fernando Montes  Mariola Sánchez-González  Francisco J. Gordo  Isabel Cañellas 《European Journal of Forest Research》2018,137(1):17-27

The dynamics of mixed stands are more complex and less studied than those of monospecific stands. The objective of this work was to analyze the variables involved in seedling occurrence and seedling survival in mixed stands of Pinus pinaster and P. pinea in Mediterranean areas. From 2011 to 2016, regeneration of both species was monitored at two sites located in Central Spain. We installed 72 regeneration plots where seedling dynamics were monitored. All the trees in the study areas were measured and mapped. Additionally, we took hemispherical photographs in each regeneration plot. The average density of P. pinea seedlings over the study period was almost 20 times larger than that of P. pinaster. Our results indicate that the seedlings of both species grow under moderate light conditions. In addition, we found that the occurrence of seedlings of both species was related to the structure of the stand. P. pinea seedlings grew where the density and size of P. pinaster trees were low and where P. pinea trees provided moderately sheltered conditions, whereas the number of P. pinaster seedlings was related to under intermediate densities of P. pinaster trees. Furthermore, seedling survival was positively associated with age of the seedlings and negatively with the August average maximum temperature. The temporal continuity of mixed stands of P. pinea and P. pinaster in the study area is compromised by the observed lack of regeneration of P. pinaster.  相似文献   

Effect of light,fire and weed control on establishment of <Emphasis Type="Italic">Pericopsis elata</Emphasis> Harms regeneration     

Peter M. Umunay  Kristofer R. Covey  Jean-Remy Makana  Timothy G. Gregoire 《New Forests》2017,48(6):735-752

Pericopsis elata (a.k.a. African teak) is one of the most valuable timber species in Central Africa. Like other shade intolerant tropical tree species, P. elata could play a vital role in economic development, and ecological sustainability, but regenerates poorly following selective logging. Now endangered, there is a critical need for sustainable silvicultural systems to restore this once prominent timber species. To assess management options for P. elata we analyzed growth performance and survival in primary and secondary forest plots under burning and weeding treatments in Yoko Forest Reserve, Ubundu Democratic Republic of Congo. We transplanted nursery-grown seedlings of P. elata to experimental gaps and followed their growth and survival for 1 year. Seedlings in large canopy gaps 50 × 50 m were taller (mean difference; P = 0.006) and more likely to survive (mean difference; P < 0.001). Weeding improved both diameter (P = 0.024) and height (P = 0.007) growth rates; however, burning alone did not significantly improve the performance of P. elata seedlings. Our data suggest that P. elata regeneration is compatible with shelterwood harvesting and traditional swidden agricultural systems widely practiced in the region.  相似文献   

Identification and multi-environment validation of resistance to pea weevil (<Emphasis Type="Italic">Bruchus pisorum</Emphasis>) in <Emphasis Type="Italic">Pisum</Emphasis> germplasm     

T. Aznar-Fernández  E. Carrillo-Perdomo  F. Flores  D. Rubiales 《Journal of pest science》2018,91(2):505-514

Pea weevil (Bruchus pisorum) is a damaging insect pest affecting pea production worldwide. The aim of this study was to identify sources of resistance to pea weevil in a Pisum spp. germplasm in multi-environment field tests. Seed infestation and larval development were assessed in each environment and subjected to a heritability-adjusted genotype and genotype x environment biplot analysis. Results showed that seed infestation and larval development are independent traits. Accessions P669 (P. sativum ssp. elatius) and P656 (P. fulvum) showed a stable reduction in seed infestation across environments. Meanwhile, accessions P314 (P. sativum ssp. elatius) and P1 (P. abyssinicum) showed a stable reduction in larval development. The most promising accession was P665 (P. sativum ssp. syriacum) which showed resistance at both pod and seed levels. This study demonstrates the importance of environmental conditions for pea weevil infestation. Moreover, by submitting data to a CCA, the influence of climatic parameters over seed infestation and larval development has been elucidated.  相似文献   

Pre-sowing treatments for improved germination and growth of two rare native species of Bangladesh     

M. A. Hossain  K. S. Islam  N. Rajasree  M. K. Hossain  M. S. Alam 《林业研究》2018,29(5):1277-1282

Pre-sowing treatments are expected to increase seed germination. This evaluates response to pre-sowing treatments and the growth performance of two native and rare tree species, Garuga pinnata Roxb. and Vitex glabrata R. Br. The hard seed coats were treated by rubbing with sand paper, nail clipping, and immersion in water and acid (H₂SO₄). Results indicate that G. pinnata showed a 90% germination rate and 30% germination energy when seed coats were nicked with a nail clipper. Rubbing with sand paper was the best pre-sowing treatment for V. glabrata, resulting a 80% germination rate and 30% germination energy. G. pinnata and V. glabrata seedlings from seeds soaked 24 h in water resulted in maximum heights and collar diameters. These were significantly higher (at p < 0.05) than those of other treatments. The results indicate that scarification or nicking of seeds may have some negative impacts on seedling growth. Therefore, it is difficult to recommend a pre-sowing treatment of seeds for achieving both maximum germination and good early seedling growth.  相似文献   

Different population performances of <Emphasis Type="Italic">Frankliniella occidentalis</Emphasis> and <Emphasis Type="Italic">Thrips hawaiiensis</Emphasis> on flowers of two horticultural plants     

Yu Cao  Junrui Zhi  Runzhi Zhang  Can Li  Yan Liu  Zhaoyun Lv  Yulin Gao 《Journal of pest science》2018,91(1):79-91

Gardenia jasminoides and Rosa chinensis are economically important horticultural plants in China. Frankliniella occidentalis and Thrips hawaiiensis are serious coexisting pests that previously demonstrated opposite population trends on G. jasminoides and R. chinensis flowers. To further study the different performances between F. occidentalis and T. hawaiiensis, we investigated their population dynamics in the field (for 5 years) and their life history characteristics on the two flowers in the laboratory. In the field, the density of F. occidentalis was lower than that of T. hawaiiensis on G. jasminoides but was higher than that of T. hawaiiensis on R. chinensis. Under laboratory conditions, F. occidentalis showed significantly slower development, and lower survival and fecundity levels than T. hawaiiensis on G. jasminoides, but the opposite was true on R. chinensis. Significant differences in the net reproductive rate (R ₀) between F. occidentalis and T. hawaiiensis were observed, with respective values of 38.66 ± 2.85 and 47.91 ± 2.70 on G. jasminoides, and 55.64 ± 2.15 and 32.45 ± 2.16 on R. chinensis. The intrinsic rates of increase (r _m ) of F. occidentalis and T. hawaiiensis were 0.156 ± 0.008 and 0.198 ± 0.007, respectively, on G. jasminoides, and 0.172 ± 0.003 and 0.165 ± 0.002, respectively, on R. chinensis. Thus, the performances of both thrips with respect to population size in the laboratory were in accordance with those in the field, suggesting that the innate capacity for insect population increases may directly impact their population dynamics in fields. Thus, the population performance of different thrips species on flowers is species-dependent, which could be exploited in thrips control programs by breeding pest-resistant cultivars.  相似文献   

Functional response of <Emphasis Type="Italic">Quercus robur</Emphasis> L. to taproot pruning: a 5-year case study     

Joanna Mucha  Andrzej M. Jagodziński  Bartosz Bułaj  Piotr Łakomy  Adrian M. Talaśka  Jacek Oleksyn  Marcin Zadworny 《Annals of Forest Science》2018,75(1):22

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Tree leaves of <Emphasis Type="Italic">Salix babylonica</Emphasis> extract as a natural anthelmintic for small-ruminant farms in a semiarid region in Mexico     

Abdelfattah Z. M. Salem  Mona M. Y. Elghandour  Ahmed E. Kholif  Secundino López  Alberto B. Pliego  Moisés Cipriano-Salazar  Juan Carlos V. Chagoyán  Roberto Montes de Oca Jiménez  María U. Alonso 《Agroforestry Systems》2017,91(1):111-122

The study aimed to test the potential anthelmintic activity of Salix babylonica (SB) extract for the control of gastrointestinal and pulmonary parasites in sheep and goats under field conditions. A representative sample of 20 % of all animals reared in 8 sheep and 7 goat farms was used in the study. Animals from each farm were randomly selected for a total number of 93 sheep and 75 goats. Animals suffered a natural gastrointestinal nematode infection and had never been treated with chemical anthelmintic drugs. The SB extract (20 mL) was orally administered weekly before the morning feeding to each animal for 60 days. Fecal eggs or oocysts were counted at 0, 1, 20, 40, and 60 days after starting the extract administration. Differences (P < 0.01) in the fecal oocyst and egg output of Eimeria, Dictyocaulus, and Moniezia were observed between sheep and goats. In addition, the treatment influenced (P < 0.05) egg outputs of Cooperia, Dictyocaulus, and Trichuris. Fecal egg or oocyst counts of Haemonchus contortus, Eimeria, Cooperia, Chabertia, Dictyocaulus, Moniezia, and Ostertagia were time-dependent (P < 0.05). For sheep, administration of SB decreased (P < 0.05) the fecal eggs count of H. contortus, Cooperia, Chabertia, Dictyocaulus, Moniezia, and Trichuris. After 20 days of treatment, H. contortus, Cooperia, or Moniezia were not detected. For goats, SB reduced (P < 0.05) the fecal egg counts of H. contortus, Cooperia, Chabertia, and Moniezia. Moreover, decreases were observed (P < 0.05) for Chabertia, Trichostrongylus, and Ostertagia. Eggs of H. contortus and Moniezia were not present in the feces after 1 day of administration of the extract. It could be concluded that the weekly administration of SB extract at 20 mL per animal can be used to treat gastrointestinal and lung nematodes of small ruminants in organic and traditional farming systems of tropical regions.  相似文献   

Assessing the impact of <Emphasis Type="Italic">Dryocosmus kuriphilus</Emphasis> on the chestnut tree: branch architecture matters     

Eric Gehring  Bruno Bellosi  Ambra Quacchia  Marco Conedera 《Journal of pest science》2018,91(1):189-202

Dryocosmus kuriphilus has become a major issue for chestnut (Castanea sativa) cultivation since its introduction in Europe. Thus far, however, quantitative assessments of the impact of D. kuriphilus in terms of green biomass loss are lacking. In the present study, we used the leaf area to sapwood area relationship (A _L:A _S)—based on the pipe model approach as a green biomass indicator—to quantitatively estimate the damage to chestnut trees caused by D. kuriphilus attacks and its recovery when the pest is controlled by Torymus sinensis in the chestnut stands of southern Switzerland. Leaf area loss is used as a response variable to select the most suitable explanatory architectural features at branch level to be combined in a damage index that permits a realistic assessment covering the entire epidemic. In our case study, the peak of the epidemic was reached in the fourth year of repeated D. kuriphilus attacks (leaf area losses exceeding 70%) with significant alterations in branch architecture. Although damage symptoms first decreased once biological control was reached (fifth year), branch architecture recovery was still lacking. From a methodological point of view, our A _L:A _S approach highlights how traditional methods of assessing the degree of infestation (i.e. proportion of attacked buds) fail to give sound estimations of resulting damage, whereas the proposed composite damage index enables a more realistic assessment of the entire epidemic process, including the recovery phase when the gall wasp is biologically controlled.  相似文献   

Photosynthetic acclimation to long-term high temperature and soil drought stress in two spruce species (<Emphasis Type="Italic">Picea crassifolia</Emphasis> and <Emphasis Type="Italic">P. wilsonii</Emphasis>) used for afforestation     

Xiaowei Zhang  Litong Chen  Jingru Wang  Minghao Wang  Shuli Yang  Changming Zhao 《林业研究》2018,29(2):363-372

Picea crassifolia and P. wilsonii, commonly used for afforestation in northern China, are increasingly likely to be subjected to high temperatures and soil drought stress as a result of global warming. However, little is known about the effects of these stresses on foliar photosynthesis in the two species. To investigate how photosynthetic characteristics and sensitivity respond to prolonged high temperatures and soil drought, foliar gas exchange and other closely related parameters were recorded from four-year-old seedlings of both species. Seedlings were grown under two temperature treatments (25/15 and 35/25 °C) and four soil water regimes [80, 60, 40 and 20% of maximum field capacity (FC)] for 4 months. Although all treatments significantly reduced photosynthetic rates (P _n) of both species, P. crassifolia exhibited greater photosynthetic acclimation than P. wilsonii. Differences in photosynthetic acclimation were mainly related to variations in stomatal conductance (Cond) and the maximum quantum yield of PSII (F _v/F _m) between treatments. Indeed, higher Cond and F _v/F _m in all treatments were shown for P. crassifolia than for P. wilsonii. Moreover, photosynthesis in P. crassifolia exhibited inherently lower temperature sensitivities (broader span for the temperature response curves; lower b) and higher thermostability (invariable b between treatments). Further, severe drought stress (20% FC) limited the survival of P. wilsonii. Our results indicate that P. wilsonii is more susceptible to high temperatures and soil drought stress. Planting P. crassifolia would be more expected to survive these conditions and hence be of greater benefit to forest stability if predicted increases in drought and temperature in northern China occur.  相似文献   

Influence of multiple- and single-species infestations on herbivore-induced cotton volatiles and <Emphasis Type="Italic">Anthonomus grandis</Emphasis> behaviour     

Diego Martins Magalhães  Miguel Borges  Raúl Alberto Laumann  Maria Carolina Blassioli Moraes 《Journal of pest science》2018,91(3):1019-1032

Plants interact with multiple organisms throughout their life cycle. As a result, they are commonly attacked by multiple species of herbivores, leading to the induction of plant defence systems. Herbivore-induced plant volatiles (HIPVs) play an important role in the interaction between community members and can be used to manipulate insect pest behaviour, being a valuable tool in integrated pest management strategy. In this study, the interaction of two chewing insects, the boll weevil, Anthonomus grandis, and the fall armyworm, Spodoptera frugiperda, and of one piercing-sucking insect, the Neotropical brown stinkbug, Euschistus heros, was evaluated for the induction of volatile compounds in cotton under single- and multiple-species attacks. As a control, the emissions of undamaged plants were also measured. In addition, the effect of HIPVs on boll weevil behaviour was also assessed. Qualitatively, single- and multiple-species herbivory induced a similar volatile blend. There was, however, a difference in the amount and proportion of compounds emitted. Plants infested with E. heros emitted a blend of volatiles more similar to that of the undamaged control compared to the other herbivore-induced treatments. The plant volatiles emitted due to simultaneous multiple-species herbivory were induced faster than volatiles emitted by sequential herbivory events, indicating different induction mechanisms depending on the attack configuration. In addition, cotton volatiles induced by an individual attack of A. grandis were attractive to conspecifics, as were the volatiles induced by multiple-species herbivory in both simultaneous and sequential attacks. The use of cotton HIPVs, both under multiple- and single-species attack, can be used for the development of alternative methods for semiochemical-based weevil management, e.g., enrichment of aggregation pheromone traps with plant volatiles.  相似文献   

Rhizosphere and bulk soil enzyme activities in a <Emphasis Type="Italic">Nothotsuga longibracteata</Emphasis> forest in the Tianbaoyan National Nature Reserve,Fujian Province,China     

Shihong Xiao  Huiming You  Weibin You  Jinshan Liu  Changtang Cai  Jianqin Wu  Zhirong Ji  Shihua Zhan  Zhesen Hu  Zhongrui Zhang  Dongjin He 《林业研究》2017,28(3):521-528

The rhizosphere, distinct from bulk soil, is defined as the volume of soil around living roots and influenced by root activities. We investigated protease, invertase, cellulase, urease, and acid phosphatase activities in rhizosphere and bulk soils of six Nothotsuga longibracteata forest communities within Tianbaoyan National Nature Reserve, including N. longibracteata + either Phyllostachys pubescens, Schima superba, Rhododendron simiarum, Cunninghamia lanceolata, or Cyclobalanopsis glauca, and N. longibracteata pure forest. Rhizosphere soils possessed higher protease, invertase, cellulase, urease, and acid phosphatase activities than bulk soils. The highest invertase, urease, and acid phosphatase activities were observed in rhizosphere samples of N. longibracteata + S. superba. Protease was highest in the N. longibracteata + R. simiarum rhizosphere, while cellulase was highest in the pure N. longibracteata forest rhizosphere. All samples exhibited obvious rhizosphere effects on enzyme activities with a significant linear correlation between acid phosphatase and cellulase activities (p < 0.05) in rhizosphere soils and between protease and acid phosphatase activities (p < 0.05) in bulk soils. A principal component analysis, correlating 13 soil chemical properties indices relevant to enzyme activities, showed that protease, invertase, acid phosphatase, total N, and cellulase were the most important variables impacting rhizosphere soil quality.  相似文献   

Analysis of floral scent emitted from <Emphasis Type="Italic">Syringa</Emphasis> plants     

Xiaoxia Yang  Jing Zhao  Jian Zheng  Pingsheng Leng  Xiaolong Li  Zenghui Hu  Jianbin Liu  Xin Meng 《林业研究》2016,27(2):273-281

Syringa is an important aromatic woody angiosperm that is widely planted in gardens. Its dry flowers are traditionally used to manufacture infusions and spices in China. In this study, the floral volatiles emitted from nine different Syringa species and varieties, viz. S. chinensis, S. p rotolaciniata, S. o blata, S. o blata var. giraldii, S. o blata var. plena, S. v ulgaris ‘Mrs Harry Bickle’, S. v ulgaris ‘Bright Centennial’, S. v ulgaris ‘White Spires’, and S. v ulgaris ‘President Lincoln’ were collected by the dynamic headspace technique, and then identified by automated thermal desorption–gas chromatography/mass spectrometry. There were significant differences in components and corresponding contents of floral scent emitted from the nine Syringa species and varieties. Among the detected components, β-ocimene exhibited the highest content, accounting for more than 70 % of the floral scent of S. p rotolaciniata, S. o blata var. giraldii, and S. v ulgaris ‘Bright Centennial’. A significant daytime variation of floral scent emitted from S. p ekinensis was recorded, especially for benzaldehyde, whose content first increased and then decreased. We studied the scent emitted from the in vitro flowers of S. v ulgaris ‘Pres Lincoln’ during the process of natural drying. Alcohol compounds were released in the greatest content, and the content of 2-ethyl-1-hexanol accounted for about 40 % of the total release amount. The results described the emission pattern and mechanisms of floral scent in Syringa.  相似文献   

Germination and early seedling growth of <Emphasis Type="Italic">Pinus densata</Emphasis> Mast. provenances     

Yulan Xu  Nianhui Cai  Bin He  Ruili Zhang  Wei Zhao  Jianfeng Mao  Anan Duan  Yue Li  Keith Woeste 《林业研究》2016,27(2):283-294

We studied seed germination and early seedling growth of Pinus densata to explore the range of variability within the species and to inform afforestation practices. Phenotypes were evaluated at a forest tree nursery under conditions that support Pinus yunnanensis, one of the presumed parental species of P. densata. Seeds were collected from 20 open-pollinated trees within each of eight autochthonous populations representing the natural distribution of P. densata in China to assess variation in germination traits and early seedling growth, and to examine the relationships among these traits. Results showed that seeds from all populations germinated and seedlings established successfully. There were significant differences among populations in 13 of 14 traits evaluated. Seed germination and early seedling growth were strongly related to seed size and seed weight. Bigger seeds germinated earlier and faster than small seeds, and seedling size was positively correlated with seed size. Some germination traits were strongly and significantly correlated with climatic variables associated with the provenance of the studied populations. Based on these observations, we conclude there were large, significant, and biologically important differences among P. densata populations in seed germination and seedling growth traits. The observed variability probably reflects a high degree of adaptive differentiation among populations that is likely to be relevant for future afforestation.  相似文献   

Application of oxygen-sensing technology to measure seed quality of <Emphasis Type="Italic">Ginkgo biloba</Emphasis>     

Tailin Zhong  Guangwu Zhao 《林业研究》2017,28(4):725-731

Germination tests are currently the most widely used method to evaluate seed quality of Ginkgo biloba L., but they are time-consuming and labor intensive. Oxygen-sensing technology, based on the principle of fluorescence quenching to detect oxygen and assess seed quality was used to rapidly evaluate seed quality of two varieties (Shandong Tancheng 202 and Zhejiang Dafoshou) of G. biloba from five mother plants. Fifteen samples of three vigor levels were produced by accelerated aging treatments. This process was applied in duplicate. A portable oxygen-sensing detector was employed to measure oxygen content during seed germination in a closed system at 25 °C each day until day 14. Four oxygen metabolism indices were calculated: oxygen consumption index, oxygen consumption rate, critical oxygen concentration, and theoretical germination time (T _GT). Additionally, we tested laboratory germination and field emergence. The results of a one-way analysis of variance and correlation analysis showed that T _GT was the candidate index to evaluate seed quality of G. biloba. Therefore, the T _GT value was used to validate the reliability of oxygen-sensing evaluation for Zhejiang Dafoshou seeds kept under four storage conditions. The trend in the change in oxygen metabolism agreed completely agreement with that of seed germination under all storage conditions. The oxygen-sensing test reliably and rapidly assessed seed quality of G. biloba. The germination rate of Zhejiang Dafoshou was accurately predicted by T _GT.  相似文献   

Selection of arbuscular mycorrhizal fungal strains to improve <Emphasis Type="Italic">Casuarina equisetifolia</Emphasis> L. and <Emphasis Type="Italic">Casuarina glauca</Emphasis> Sieb. tolerance to salinity     

Pape Ibrahima Djighaly  Mariama Ngom  Daouda Ngom  Valérie Hocher  Dioumacor Fall  Diégane Diouf  Laurent Laplaze  Sergio Svistoonoff  Antony Champion 《Annals of Forest Science》2018,75(3):72

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Impacts of soil conditions and light availability on natural regeneration of Norway spruce <Emphasis Type="Italic">Picea abies</Emphasis> (L.) H. Karst. in low-elevation mountain forests     

Marcin K. Dyderski  Anna Gazda  Mariusz Hachułka  Paweł Horodecki  Izabela L. Kałucka  Jacek Kamczyc  Marek Malicki  Remigiusz Pielech  Michał Smoczyk  Maciej Skorupski  Sylwia Wierzcholska  Andrzej M. Jagodziński 《Annals of Forest Science》2018,75(4):91

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Regeneration patterns of the late-successional <Emphasis Type="Italic">Abies alba</Emphasis> Mill.: inhibition in monospecific stands and colonization in mixed stands     

Jarosław G. Paluch  Zbigniew Kołodziej  Jerzy Skrzyszewski  Leszek Bartkowicz  Piotr Gruba 《Annals of Forest Science》2016,73(4):1015-1024

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