How do light and water influence Pinus pinaster Ait. germination and early seedling development?

Ruano, Irene; Pando, Valentín; Bravo, Felipe

doi:10.1016/j.foreco.2009.09.027

Cited by 59 publications

(93 citation statements)

References 20 publications

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“…This result may suggest that ca. Ruano et al (2009) found that the amount of light affected the germination of P. pinaster, where a lower germination rate occurred in areas without basal area removal than in sites with 25% basal area removal. The temperatures in the small gaps, especially for seeds on the soil surface, did not differ greatly from that in the understory.…”

Section: Similar Germination Percentages Under Leafless Canopy and Inmentioning

confidence: 96%

“…Light plays a more critical role than water conditions during seed germination and seedling survival of Pinus pinaster Ait. (Ruano et al, 2009). Through controlling the sowing depth, Castro et al (2002) reported that the physical barrier created by an herbaceous layer was the main block for Pinus sylvestris L. regeneration, as well as to the potential expansion of the forest.…”

Section: Introductionmentioning

confidence: 99%

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Seed germination of Pinus koraiensis in response to light regimes caused by shading and seed positions

2012

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Pinus koraiensis Siebold & Zucc. (Korean pine), the dominant tree species in the mixed broadleaved Korean pine forests (regional climax), is severely restricted by its regeneration failure. To determine the effects of light regimes on P. koraiensis regeneration, the seed germination process was examined in shade houses and forest stands (before and after leaf expansion) with various light levels created by shading and seed positions. Despite the large size of P. koraiensis seeds (500-600 mg), both light intensity and quality significantly affected the germination percentage in both shade houses and forests. Substantial changes in light intensity and quality led the majority of seeds (80%) to germinate in leafless forests and shade houses, while only a minority (≤ 20%) germinated after leaf expansion in the forests. Moreover, seed germination in shade houses and leafless forests exhibited similar patterns; they consistently reached a 70% shading degree, which was optimal for the seed germination of P. koraiensis on topsoil. Seed positioning significantly affected germination for each shading degree, especially when litter and soil coverings drastically inhibited germination. In conclusion, (1) when seeds were not stressed by temperature and moisture, light irradiance played a critical role in the seed germination of P. koraiensis; (2) seed positioning, in relation to alterations in light intensity and quality, affected the germination of P. koraiensis; (3) a shade house experiment using neutral cloth provided an applicable and controllable way to monitor the P. koraiensis seed germination in early spring before leaf expansion. The light requirement for the germination of P. koraiensis played a key role in the regeneration of P. koraiensis throughout the temperate secondary forests.

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Section: Similar Germination Percentages Under Leafless Canopy and Inmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Seed germination of Pinus koraiensis in response to light regimes caused by shading and seed positions

2012

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“…Other problems related to regeneration and the initial development of forest species in certain areas will likely occur also. Ruano et al (2009) identified water availability as a key factor in the germination and early growth of Pinus pinaster and later found water stress to be a mediator in seed production (Ruano et al, 2015). Changes in precipitation amounts and regimes will likewise reduce natural regeneration in Mediterranean forests.…”

Section: Introductionmentioning

confidence: 99%

Forest Carbon Sequestration: The Impact of Forest Management

Bravo

Rı́o

Bravo‐Oviedo

et al. 2017

Managing Forest Ecosystems: The Challenge of Climate Change

Self Cite

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“…Apparently, our results were markedly shaped by moisture conditions. Spring in 2008 was characterised by high precipitation in April (60 mm) and May (94 mm) as well as favourable AI: 38.1 and 49.3 respectively during seedling emergence [53,54]. This ensured a high moisture content of the furrow bottom in AP plots (with a mixture of mineral soil and humus) and lower in FM plots (with a mixture of crushed herbaceous plants, forest litter, humus and mineral soil).…”

Section: Discussionmentioning

confidence: 99%

Effects of Reforestation and Site Preparation Methods on Early Growth and Survival of Scots Pine (Pinus sylvestris L.) in South-Eastern Poland

Aleksandrowicz-Trzcińska

Drozdowski

Wołczyk

et al. 2017

Forests

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Abstract:Successful tree regeneration is a key process in ensuring forest sustainability and one of the most crucial investments made in silviculture. This study compared the effects of three reforestation methods (planting, direct seeding, and natural regeneration) and three mechanical site preparation methods (double mould-board forest plough (FP); active plough (AP); and forest mill (FM)) on biometric parameters, survival, and density of Scots pine (Pinus sylvestris L.) seedlings in the first 4 years of growth in a clear-cut area in south-eastern Poland. Planted seedlings were higher, thicker in root collar, and had higher survival rates after the fourth growing season than trees from natural regeneration and direct seeding. Site preparation methods did not affect the density of planted seedlings. After natural regeneration and direct seeding, seedling density was lower and less homogeneous (plots with no seedlings) in FM soil preparation in comparison to other methods. The survival of pines in all reforestation methods was not affected significantly by site preparation methods. Our results indicate that the best mechanical site preparation method for planting is FM, as this is the one that least disturbs the soil environment. For direct seeding the best results were achieved after AP preparation. Natural regeneration of Scots pine was most effective after FP use, and in relatively wet years also after AP use.

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How do light and water influence Pinus pinaster Ait. germination and early seedling development?

Cited by 59 publications

References 20 publications

Seed germination of Pinus koraiensis in response to light regimes caused by shading and seed positions

Seed germination of Pinus koraiensis in response to light regimes caused by shading and seed positions

Forest Carbon Sequestration: The Impact of Forest Management

Effects of Reforestation and Site Preparation Methods on Early Growth and Survival of Scots Pine (Pinus sylvestris L.) in South-Eastern Poland

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