Estresse hídrico no metabolismo e crescimento inicial de mudas de Mutambo (&lt;i&gt;Guazuma ulmifolia&lt;/i&gt; Lam.)

Scalon, Silvana de Paula Quintão; Mussury, Rosilda Mara; Euzébio, Verusca Luzia de Mello; Kodama, Flávia Mitsuko; Kissmann, Camila

doi:10.5902/198050984510

Cited by 71 publications

(76 citation statements)

References 9 publications

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“…Similar results were observed with C. ferrea (pau-ferro) seedlings (LENHARD et al, 2010) cultivated at 70%, 40%, and 12.5% field capacity and under saturation conditions; with Myracrodruon urundeuva (aroeira) seedlings (FIGUEIRÔA et al, 2004) cultivated at 75%, 50%, and 25% field capacity; and with Guazuma ulmifolia (mutambo) seedlings (SCALON et al, 2011) cultivated at 100%, 50%, 25%, and 12.55% field capacity.…”

Section: Discussionsupporting

confidence: 72%

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Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

et al. 2016

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Information on germination, seedling development, and substrates and water requirements of native Savannah species are scarce, for propagation and plantation establishments. Based on this, we evaluated the initial growth of Campomanesia adamantium seedlings sown into tubes containing substrates with different compositions and water retention capacities, including red latosoil; red latosoil and Bioplant ® (1:1); red latosoil, sand, and semidecomposed poultry manure (1:1:0.5); red latosoil and sand (1:1); and red latosoil, sand, and semidecomposed poultry manure (1:2:0.5). The tubes were irrigated three times per week to 25%, 50%, 75%, and 100% of their water retention capacities. The morphological characteristics of the seedlings and their quality indexes were analyzed 52, 83, 114, and 145 days after sowing. We tested all possible combinations of substrates and percentages of water holding capacities, with four replicates (12 tubes). The substrates of red latosoil plus sand and red latosoil plus Bioplant ® were found to be most suitable for the growth and development of C. adamantium seedlings at water retention capacities between 75% and 100%. Growing conditions with water retention capacities of 25% and 50% should not be used to produce seedlings of C. adamantium.

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Section: Discussionsupporting

confidence: 72%

“…f. ex S. Moore plants (ipê-amarelo) subjected to watering regimes of 100%, 50%, and 25% of field capacity. Scalon et al (2011) likewise observed that de Guazuma ulmifolia (mutambo) plants cultivated at 12.5%, 25%, 50%, and 100% field capacity showed less development of aerial portions as the substrate water content was reduced.…”

Section: Discussionmentioning

confidence: 77%

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

et al. 2016

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“…Similar results were observed by Scalon et al (2011) who evaluated the photosynthetic metabolism and transpiration of mutambo seedlings (Guazuma ulmifolia Lam.) and concluded that, although no significant difference was found between the efficiency of water use within the four levels of irrigation assessed (12.5, 25, 50 and 100%), stomatal conductance and photosynthesis were higher and did not vary significantly between 25, 50 and 100% of water retention capacity.…”

Section: Discussionsupporting

confidence: 71%

“…With a greater availability of water, the better is absorption capacity of nutrients by the roots and the higher photosynthetic efficiency, however, excess of water can cause dramatic changes in plant metabolism, reducing their growth and development. Water stress can affect root and shoot growth, both by inhibiting the internodes elongation and leaf expansion as well as accelerate their senescence and abscission (Kozlowski 1997, Taiz and Zeiger 2009, Scalon et al 2011.…”

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confidence: 99%

Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels

Scalon

Jeromini

Mussury

et al. 2014

An. Acad. Bras. Ciênc.

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The aim of this research was to evaluate the quality and photosynthetic metabolism of "uvaia" seedlings (Eugenia pyriformis Cambess.) on different substrates and water regimes. ), photosynthesis (µmol m -2 s -1 ) and efficiency of water use (µmol de CO 2 / mmol de H 2 O). Until their 150 th days, the seedlings had higher quality and photosynthetic metabolism when cultured with substrates containing latosol + sand + poultry litter on the two variations assessed and water retention capacity of 50%.

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“…A diminuição da abertura estomática é observada por muitos autores como sendo umas das respostas diretas ao estresse hídrico (LIBERATO et al, 2006;LIMA et al, 2010;WARREN et al, 2011;ALBUQUERQUE et al, 2013), como forma de reduzir aperda de água e a possibilidade de morte por dessecação (NOGUEIRA; SILVA, 2002;SILVA et al, 2009;CORDEIRO et al, 2009;SCALON et al, 2011). Por outro lado, a análise qualitativa e quantitativa da absorção e aproveitamento da energia luminosa pelo fotossistema II tem sido utilizada para investigar possíveis relações do estresse hídrico com a capacidade fotossintética e a redução da assimilação de CO 2 (MAXWELL; JOHNSON, 2000;GONÇALVES et al, 2009;LAGE-PINTO et al, 2012;ESPOSTI, 2013).…”

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Trocas Gasosas E Eficiência Do Fotossistema Ii Em Plantas Adultas De Seis Espécies Florestais Em Função Do Suprimento De Água No Solo1

et al. 2015

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RESUMO -A redução da disponibilidade hídrica causa efeitos sobre a fotossíntese e o desenvolvimento de espécies arbóreas. O objetivo deste trabalho foi avaliar as trocas gasosas e a eficiência fotoquímica do fotossistema II em plantas adultas de gonçalo-alves (Astronium fraxinifolium Schott.), guanandi (Calophyllum brasiliense Cambess.), ipê-amarelo (Handroanthus serratifolius (Vahl.), ipê-rosa (Handroanthus impetiginosa (Mart.) Matos), marupá (Simarouba amara Aubl.) e mogno (Swietenia macrophylla King.) cultivadas em condições de sequeiro e irrigadas, no Perímetro Irrigado do Baixo Acaraú, Ceará. O delineamento experimental adotado foi o de medidas repetidas no tempo, num esquema de parcelas subsubdivididas (6 x 2 x 3), sendo a parcela principal composta por seis espécies, a subparcela por dois regimes hídricos (irrigado e sequeiro) e a subsubparcela pelas épocas de avaliação. As análises das trocas gasosas foram realizadas em 22/11/2012 (estação seca), 07/02/ 2013 (data que antecedeu o período chuvoso) e 17/05/2013 (estação chuvosa). As espécies mogno, guanandi e ipê-amarelo mostraram-se mais sensíveis ao déficit hídrico, em comparação com as outras espécies, o que foi evidenciado pelas maiores reduções nas trocas gasosas e na eficiência fotoquímica do fotossistema II. O ipê-rosa, o marupá e o gonçalo-alves mostraram-se mais adaptados às condições de baixa disponibilidade hídrica do solo.Palavras-chave: Estresse hídrico; Plantas lenhosas; Fotossíntese. LEAF GAS EXCHANGE AND EFFICIENCY OF PHOTOSYSTEM II IN ADULT PLANTS OF SIX FOREST SPECIES AS FUNCTION OF THE WATER SUPPLY IN THE SOILABSTRACT -The reduction of water availability causes effects on photosynthesis and the development of tree species. The objective of this study was to evaluate leaf gas exchange and photochemical efficiency of photosystem II in adult plants of gonçalo-alves (Astronium fraxinifolium Schott), guanandi (Calophyllum brasiliense Cambess.), ipê-amarelo (Handroanthus serratifolius (Vahl.), ipê-rosa (Handroanthus impetiginosa (Mart.) Matos.), marupá (Sima roubaamara Aubl.) and mogno (Swietenia macrophylla King.) cultivated in non-irrigated and irrigated conditions, in the Irrigation Perimeter of Baixo Acaraú, Ceará, Brazil. The experimental design was a repeated measures, a scheme of split-plots (6 x 2 x 3), with the plot composed by six plant species, the subplot by two water regimes (irrigated and non-irrigated) and the sub-subplots by evaluation dates. The measurements of leaf gas exchange were made in 11/22/2012 (dry season), 02/ 07/2013 (date that preceded the rainy season) and 05/17/2013 (rainy season). The species mogno, guanandi and ipê-amarelo were more sensitive to drought compared to other species, evidenced by greater reductions in leaf gas exchange and photochemical efficiency of photosystem II. The ipê-rosa, marupá and gonçalo-alves were more adapted to conditions of low soil water availability.

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Estresse hídrico no metabolismo e crescimento inicial de mudas de Mutambo (<i>Guazuma ulmifolia</i> Lam.)

Cited by 71 publications

References 9 publications

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

Initial growth of Campomanesia adamantium (Cambess.) O. Berg. seedlings on substrates with different compositions and water retention capacities

Photosynthetic metabolism and quality of Eugenia pyriformis Cambess. seedlings on substrate function and water levels

Trocas Gasosas E Eficiência Do Fotossistema Ii Em Plantas Adultas De Seis Espécies Florestais Em Função Do Suprimento De Água No Solo1

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