Long-term effects of CO&lt;sub&gt;2&lt;/sub&gt; enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile trees

Pokorný, Radek; Tomášková, Ivana; Drápelová, I.; Kulhavý, J.; Marek, Michal V.

doi:10.17221/72/2009-jfs

Cited by 8 publications

(3 citation statements)

References 28 publications

(34 reference statements)

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“…For the new tree biomass production is important not only the precipitation sum but also the precipitation distribution during the growing season. Mainly the precipitation sum at the beginning of bud burst and during the current shoots development is important (Schleip et al, 2008;Pokorný et al, 2010;Bednářová and Merklová, 2011). The beginning of Norway spruce bud burst is in the Central Europe on average around 125 day (May 5 th ) and the current shoots are usually fully developed on average between 196 and 214 day (July 15 th -August 15 th ) depending on climatic conditions.…”

Section: Resultsmentioning

confidence: 99%

Light Use Efficiency of Aboveground Biomass Production of Norway Spruce Stands

Bellan

Marková

Zaika

et al. 2017

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Light use efficiency (LUE or photosynthetically active radiation use efficiency) in production of young spruce stands aboveground biomass was determined at the study sites Rájec (the Drahanská vrchovina Highland) and Bílý Kříž (the Moravian‑Silesian Beskids Mountains) in 2014 and 2015. The LUE value obtained for the investigated spruce stands were in the range of 0.45 – 0.65 g DW MJ–1. The different LUE values were determined for highland and mountain spruce stand. The differences were caused by growth and climatic conditions and by the amount of assimilatory apparatus (LAI).

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Section: Resultsmentioning

confidence: 99%

Light Use Efficiency of Aboveground Biomass Production of Norway Spruce Stands

Bellan

Marková

Zaika

et al. 2017

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…According to our previous investigation with spruce (Pokorný et. al, 2010) statistically signifi cant diff erences (p << 0.01) between A and E treatments were found.…”

Section: Resultsmentioning

confidence: 99%

Shifts in spruce and beech flushing in the context of global climate change

Pokorný¹,

Tomášková²,

Ač³

2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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Bud phenology and development of needle nitrogen content were monitored on Norway spruce (Picea abies [L.] Karst) and European beech (Fagus sylvatica [L.]) trees grown inside glass-domes for five years under ambient (385 µmol(CO2) mol−1) and elevated (700 µmol(CO2) mol−1) atmospheric CO2 concentrations ([CO2]). The spruce to beech ratio was 35:65 in both treatments. At the beginning of the experiment mean age of investigated trees was 5 years.Elevated [CO2] was responsible for premature growth of both spruce and beech buds in the E treatment (not significantly, by 3–7 days). Nevertheless the flushing of neither beech nor spruce was not significantly hastened in E treatment during the flushing within the 5 years. During the second half of flushing faster development of terminal beech buds comparing to spruce was found (Chi-square = 65, p << 0.01). While the trajectory of beech buds development proceeded in the line – terminal – apical – lateral, the development of apical and lateral buds in spruce was finished before finalization of terminal buds development. At the beginning of the growing season the lowest value of nitrogen in spruce needles from E treatment (mean ± standard deviation 1.20 ± 0.18 %) was found. This could be a reason of weak differences between A and E treatment in both tree species. Elevated [CO2] acts as growth stimulator but the nitrogen insufficiency eliminates a positive effect of [CO2]. As the global climate change express itself in many ways and relationship’s consequences among plants and/or animals are hard to forecast.

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“…Outros fatores como a fertilidade do solo influenciam nas respostas ao elevado CO 2 . Estudos analisando o efeito da atmosfera enriquecida com CO 2 em locais com baixa fertilidade do solo não mostraram crescimento da parte aérea e, em alguns casos, observou-se uma ligeira redução (Curtis et al, 1994;Kubiske et al, 1998;Oren et al, 2001;Sigurdsson et al, 2001;Pokorný et al, 2010;Norby & Zak, 2011) , mas é importante ressaltar as diferentes espécies podem responder de forma divergente (Dawes et al, 2011).…”

Section: Manuseiounclassified

Efeito da atmosfera enriquecida com CO2 em mudas de Psidium guajava L. cv. Pedro Sato

Rezende¹

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Psidium guajava L. pertence à Myrtaceae, uma das maiores famílias da flora brasileira, com 23 gêneros e 1000 espécies (Souza & Lorenzi, 2005). Myrtaceae inclui outras plantas agrícolas importantes que rendem produtos econômicos, como temperos aromáticos (cravo-da-índia, Syzygium aromaticum; pimenta-da-jamaica, Pimenta dioica), óleos aromáticos (eucalipto, Eucalyptus spp), plantas ornamentais (papeleira, Malaleuca leucadendra; escova-de-garrafa, Callistemon citrinus) e várias frutíferas (jambo, Syzygium spp.; grumixama, Eugenia brasiliensis; pitanga, Eugenia uniflora; jabuticaba, Myrciaria cauliflora; e muitas outras) (Kwee & Chong, 1990; Souza & Lorenzi, 2005). Psidium apresenta aproximadamente 150 espécies entre as quais se destacam P. guajava L. (goiabeira, 2n = 22), P. cattleyanum Sabine (araçá doce, araçá-de-praia ou araçá-de-coroa) e P. guineense Swartz (araçá-do-campo) (Pereira, 1995). A maior diversidade de espécies de Psidium encontra-se no Brasil central e sudeste, mas há também um bom número de espécies (aproximadamente 15) de ocorrência na região norte da América do Sul, várias nas Índias Ocidentais, algumas na América do Norte, e algumas espécies periféricas dos Andes e do sul do Brasil. Numerosas espécies descritas da região central e sudeste do Brasil, ainda não foram adequadamente estudadas (Pommer et al., 2006). P. guajava é uma espécie tropical, frutífera e de grande importância na fruticultura brasileira. O Brasil é o quarto maior produtor mundial ficando atrás da Índia, Paquistão e Egito (FAO, 2011).No Brasil, os cultivares vermelhos de casca rugosa, principalmente Pedro Sato e Sassaoka, são, atualmente, os mais plantados para a comercialização de frutos frescos. Embora a área total em produção no país tenha aumentado 45% de 1999 a 2004, no nordeste do Brasil, onde a goiabeira é cultivada com irrigação e tecnologia intensiva, a área plantada aumentou cerca de 90%. Entretanto, devido aos baixos preços obtidos pelos produtores, a redução na área de plantio foi sentida em 2005 (Pommer et al., 2006). França, Reino Unido e Países Baixos são os grandes consumidores da goiaba brasileira; juntos consomem quase 166 mil quilos desse fruto, segundo dados do Ministério da agricultura, pecuária e abastecimento (2011), caracterizando um mercado atraente e promissor (

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Long-term effects of CO<sub>2</sub> enrichment on bud phenology and shoot growth patterns of Norway spruce juvenile trees

Cited by 8 publications

References 28 publications

Light Use Efficiency of Aboveground Biomass Production of Norway Spruce Stands

Light Use Efficiency of Aboveground Biomass Production of Norway Spruce Stands

Shifts in spruce and beech flushing in the context of global climate change

Efeito da atmosfera enriquecida com CO2 em mudas de Psidium guajava L. cv. Pedro Sato

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