Survival, Growth and Mycorrhization of Containerised <i>Pinus sylvestris</i> and <i>Picea abies</i> Seedlings of Different Provenances Outplanted in a Forest Clear-Cut

Kļaviņa, Dārta; Muižnieks, Indriķis; Baumanis, I. I.; Jansons, Juris; Gaitnieks, T.; Menkis, Audrius

doi:10.1515/prolas-2017-0049

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…While our results are in agreement with previous observations, they also revealed that T. terrestris occurred at similar abundances in both roots and the growth substrate, suggesting not only the presence but also high activity in the latter ecological niche. Despite T. terrestris being well adapted to environmental conditions present in forest nurseries [14], it often fails to support seedling growth after outplanting and is gradually replaced by indigenous mycorrhizal fungi [44]. Among other dominant fungi, both C. terricola and L. drummii were more abundant in the growth substrate than in roots (Table 2), which reflected on their saprotrophic lifestyle and reportedly common isolation from the soil [45,46].…”

Section: Discussionmentioning

confidence: 99%

High-Throughput Sequencing Shows High Fungal Diversity and Community Segregation in the Rhizospheres of Container-Grown Conifer Seedlings

Menkis

Burokienė

Stenlid

et al. 2016

Forests

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Forest nurseries in Sweden produce ca. 360 million seedlings of Pinus sylvestris L. and Picea abies (L.) Karst. annually. Fungi represent the largest microbial component in rhizospheres and may significantly affect health and, consequently, quality of the seedlings. The aim of this study was to assess fungi focusing on pathogens in roots and the sphagnum peat growth substrate of healthy-looking P. sylvestris and P. abies seedlings from nine forest nurseries situated in northern, central and southern regions of Sweden. We hypothesized that nursery stock and the growth substrate can provide a venue for dissemination of fungal diseases. In each nursery and for each tree species, 100 seedlings with the growth substrate were collected during the dormant period. DNA was isolated from parts of root systems and from samples of the growth substrate, amplified using internal transcribed spacer of rDNA as a marker and 454-sequenced. Clustering at 98.5% similarity of 169,844 high-quality sequences resulted in 619 non-singleton fungal taxa. Although results showed that management practices in forest nurseries generally give a healthy stock, latent establishment of pathogenic fungi in both roots and the growth substrate supported the hypothesis. Furthermore, seedling roots and the growth substrate were inhabited by distinct communities of fungi, and lifestyles of these fungi largely determined community segregation into particular ecological niche.

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Section: Discussionmentioning

confidence: 99%

High-Throughput Sequencing Shows High Fungal Diversity and Community Segregation in the Rhizospheres of Container-Grown Conifer Seedlings

Menkis

Burokienė

Stenlid

et al. 2016

Forests

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“…The outlay of forest regeneration includes soil preparation, price of seedlings and labour force for planting and monitoring. One of the parameters assessing how successful forest regeneration has happened is the seedling survival rate that depends on various factors such as used soil preparation method, forest type, intensity of browsing, planting method, selected tree species, microrelief of planting pit, field vegetation, diseases and others (Klavina 2013., Hille and Den Ou den 2004., Kuuluvainen et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Forest Regeneration Quality Assessment by Asta System

Dūmiņš¹,

Stals²,

Lazdiņa

2018

Proccedings of International Scientific Conference "RURAL DEVELOPMENT 2017"

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In Latvia one third of the total forest area is regenerated by planting tree seedlings and therefore it is important to choose the appropriate soil preparation method and the right type of regeneration material for each forest type. Usually the success of afforestation is evaluated by how high is the average seedling survival rate and growth parameters like height, annual increment, diameter at breast height while the location of the seedling is disregarded. This may be of great importance since in such stands the environmental conditions typically are not entirely homogenous. Micro topography differences impact seedling growth, because it modifies water regime, temperature, micronutrient availability, sun radiation and other factors. Therefore, aim of this work is to improve monitoring methods and determine the most efficient soil preparation and seedling preparation combination to improve the quality of forest regeneration. That could be done using ASTA documentation system originally developed to show seedling and mound location and density in planting area during mechanic planting. But it also allows to link the precise location of the seedling and growing conditions with its growing rate and survival and therefore it is easier to exclude seedlings that are affected by other factors than those that you are interested in, so you can gain more representative results. This also could be used in forest management. When using ASTA system it is also possible to display how different tree disease are distributed in the stand, if they have spread eventually or localized only in some parts of the stand, also it can be used for browsing and other tree damage monitoring in the stand. In conclusion: in harsh environmental conditions on unprepared forest soil and soil prepared in furrows made by disc trench larger seedlings show better survival rate. Survival of seedlings is significantly impacted by micro topography, whereas mounded micro sites equalize local environmental conditions that reduce impact of micro topography.

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“…Seedlings of different provenances, when grown under identical environment conditions, often display different patterns of growth [38][39][40]. Provenance variation in the seedling diameter at the nursery stage has been observed for Dalbergia sissoo Roxb.…”

Section: Discussionmentioning

confidence: 99%

Phenotypic Variation in Seed Morphochemical and Seedling Traits in Four Chinese Provenances of Xanthoceras sorbifolium

Chen

Wang

Zhang

et al. 2022

Forests

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Variability in seed and seedling traits of Xanthoceras sorbifolium Bunge was evaluated at the population level. Seed samples were collected from four provenances in China and examined for variations in morphometric traits, chemical components, and seedling growth in the nursery stage. There were significant differences in the seed length, width, dry weight, 1000-seed weight, oil concentration, Mg and Cu concentrations, root biomass, and root–stem biomass ratio. The largest seed in terms of size and weight was from Ongniud Banner, Inner Mongolia (OB), but these seeds also had the lowest seed oil concentration. At the end of the first growing season in the nursery, seedlings stopped growing one month earlier in height than in diameter. The provenance difference in height was significant at the first 2 months after sowing but disappeared later. Genotypic variance (Vg) was found to be higher than corresponding environmental (Ve) variance for seed length, seed width, seed dry weight, 1000-seed weight, diameter, and root biomass, indicating that these parameters were strongly inherited and there was ample scope for improvement. Moreover, correlations between seed and seedling traits and climatic and geographical factors were assessed. Some significant intercharacter correlations were found, such as between seed length, width and seed weight, between oil concentration and seed size, and between seedling height, diameter, and root biomass. Combining the seed- and seedling-related parameters, our results indicated that Mulei, Xinjiang (ML) may be used as an ideal material for a further improvement program.

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Survival, Growth and Mycorrhization of Containerised Pinus sylvestris and Picea abies Seedlings of Different Provenances Outplanted in a Forest Clear-Cut

Cited by 5 publications

References 17 publications

High-Throughput Sequencing Shows High Fungal Diversity and Community Segregation in the Rhizospheres of Container-Grown Conifer Seedlings

High-Throughput Sequencing Shows High Fungal Diversity and Community Segregation in the Rhizospheres of Container-Grown Conifer Seedlings

Forest Regeneration Quality Assessment by Asta System

Phenotypic Variation in Seed Morphochemical and Seedling Traits in Four Chinese Provenances of Xanthoceras sorbifolium

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