Consulta: subjectFacets:"Biomass allocation"
Registros recuperados: 21
Data/hora: 13/06/2024 01:19:24

Efecto del estrés hídrico y por altas temperaturas sobre algunas características de crecimiento, distribución de biomasa y composición isotópica de carbono de poblaciones de Pinus pinceana
Provedor de dados: 32
Autores: Martiñón Martínez, Rodrigo Julián.
Con el propósito de determinar las posibilidades de adaptación de Pinus pinceana Gord. a condiciones ambientales asociadas al cambio climático, conocer algunos de los mecanismos fisiológicos involucrados e identificar poblaciones con una mejor respuesta a dichas condiciones, se evaluó el efecto del estrés por sequía y por temperatura sobre el crecimiento, distribución de biomasa, composición isotópica de carbono (δ13C), y tasa relativa de crecimiento (TRC) en plantas de diferentes poblaciones bajo condiciones de invernadero. El diseño experimental incluyó dos ambientes de temperatura, con una diferencia promedio de 2 ºC y dos condiciones de disponibilidad de agua. Los dos factores de estrés ocasionaron una reducción en el crecimiento, la acumulación de...
Tipo: Tesis
Palavras-chave: Adaptación; Cambio climático; Distribución de biomasa; Relación parte aérea-raíz; Variación genética; Δ13C; Eficiencia en el uso del agua; Tasa relativa de crecimiento; Maestría; Forestal; Adaptation; Climate change; Biomass allocation; Shoot-root ratio; Genetic variation; Δ13C; Water use efficiency; Relative growth rate.
Ano: 2009
URL: http://hdl.handle.net/10521/1360

Efecto del estrés hídrico y por altas temperaturas sobre algunas características de crecimiento, distribución de biomasa y composición isotópica de carbono de poblaciones de Pinus pinceana
Provedor de dados: 32
Autores: Martiñón Martínez, Rodrigo Julián.
Con el propósito de determinar las posibilidades de adaptación de Pinus pinceana Gord. a condiciones ambientales asociadas al cambio climático, conocer algunos de los mecanismos fisiológicos involucrados e identificar poblaciones con una mejor respuesta a dichas condiciones, se evaluó el efecto del estrés por sequía y por temperatura sobre el crecimiento, distribución de biomasa, composición isotópica de carbono (δ13C), y tasa relativa de crecimiento (TRC) en plantas de diferentes poblaciones bajo condiciones de invernadero. El diseño experimental incluyó dos ambientes de temperatura, con una diferencia promedio de 2 ºC y dos condiciones de disponibilidad de agua. Los dos factores de estrés ocasionaron una reducción en el crecimiento, la acumulación de...
Tipo: Tesis
Palavras-chave: Adaptación; Cambio climático; Distribución de biomasa; Relación parte aérea-raíz; Variación genética; Δ13C; Eficiencia en el uso del agua; Tasa relativa de crecimiento Adaptation; Climate change; Biomass allocation; Shoot-root ratio; Genetic variation; Δ13C; Water use efficiency; Relative growth rate.
Ano: 2012
URL: http://hdl.handle.net/10521/1032

Crecimiento y estructura de la raíz en plantas de Pinus pinceana sometidas a dos condiciones de humedad del suelo.
Provedor de dados: 32
Autores: Córdoba Rodríguez, Diana.
Pinus pinceana Gordon es un pino piñonero endémico que crece en poblaciones aisladas en condiciones semiáridas, en el noreste y centro-oriente de México. Con el propósito de identificar características de la raíz asociadas a mecanismos de adaptación ante condiciones de estrés hídrico, se evaluó el crecimiento y estructura de la raíz en plantas de seis poblaciones de la especie en dos condiciones de humedad del suelo. El estudio se realizó en plantas de tres años de edad y recién germinadas manteniendo la humedad del suelo cercana a capacidad de campo (S0) o por debajo de 20 % de humedad aprovechable (S1). Se determinó que en las plantas de tres años de edad, el estrés hídrico redujo en 27 % el número de raíces principales, en 51 % la biomasa de la raíz...
Palavras-chave: Pinus pinceana; Crecimiento de raíz; Distribución de biomasa; Estrés hídrico; Relación parte aérea/raíz; Sequía; Biomass allocation; Drought; Root growth; Shoot/root ratio; Water stress; Maestría; Forestal.
Ano: 2010
URL: http://hdl.handle.net/10521/225

Crecimiento y estructura de la raíz en plantas de Pinus pinceana sometidas a dos condiciones de humedad del suelo.
Provedor de dados: 32
Autores: Córdoba Rodríguez, Diana.
Pinus pinceana Gordon es un pino piñonero endémico que crece en poblaciones aisladas en condiciones semiáridas, en el noreste y centro-oriente de México. Con el propósito de identificar características de la raíz asociadas a mecanismos de adaptación ante condiciones de estrés hídrico, se evaluó el crecimiento y estructura de la raíz en plantas de seis poblaciones de la especie en dos condiciones de humedad del suelo. El estudio se realizó en plantas de tres años de edad y recién germinadas manteniendo la humedad del suelo cercana a capacidad de campo (S0) o por debajo de 20 % de humedad aprovechable (S1). Se determinó que en las plantas de tres años de edad, el estrés hídrico redujo en 27 % el número de raíces principales, en 51 % la biomasa de la raíz...
Palavras-chave: Pinus pinceana; Crecimiento de raíz; Distribución de biomasa; Estrés hídrico; Relación parte aérea/raíz; Sequía; Biomass allocation; Drought; Root growth; Shoot/root ratio; Water stress; Maestría; Forestal.
Ano: 2010
URL: http://hdl.handle.net/10521/225

Genotypic variation in morphology and freezing resistance of Eucalyptus globulus seedlings subjected to drought hardening in nursery
Provedor de dados: 69
Autores: Coopman,Rafael E; Jara,Jorge C; Escobar,Rene; Corcuera,Luis J; Bravo,Leon A.
Eucalyptus globulus Labill is one of the most planted species in Chile, because of its fast growth and superior pulp qualities. Nevertheless, the incidence of drought and frost damage immediately after planting is frequent. The purpose of this work was to study the effect of drought hardening on frost resistance and on variations in morphological traits that may increase drought resistance at nursery phase in four genotypes of E. globulus Labill. Drought hardening treatments consisted in induced water stress by watering restriction, until pre-dawn stem xylem water potentials (&amp;#936;pd) reached -0.2, -1.8 and -2.6 MPa. Two water stress-rewatering cycles were applied during 54 days of hardening. Plant and root biomasses were affected by the interaction...
Tipo: Journal article
Palavras-chave: Biomass allocation; Cross hardening; Genotypic selection; Planting stock quality; Water stress.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100005

Tolerance to flooding in five Brachiaria brizantha accessions
Provedor de dados: 86
Autores: Dias-Filho,Moacyr Bernardino.
Some physiological and morphological responses of five Brachiaria brizantha accessions (BRA000591 cultivar Marandu, BRA003441, BRA002844, BRA004308 and BRA004391) were compared for plants grown in pots under flooding and well-drained conditions for 14 days. Flooding caused a significant reduction in leaf dry mass production in all accessions, but, for root biomass, no differences between treatments could be detected in BRA003441 and BRA004391. No adventitious root production was observed in flooded BRA003441; all other accessions produced adventitious roots when flooded. Relative growth rate was reduced by flooding only in BRA000591 and BRA004308. Leaf elongation rate was reduced by flooding in all accessions, however, more severely in BRA003441. Net...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adventitious roots; Photosynthesis; Forage grasses; Biomass allocation; Growth rate.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000400003

Management Of Commelina benghalensis with Saflufenacil in Shaded Environments
Provedor de dados: 87
Autores: SANTOS JUNIOR,A.; FREITAS,F.C.L.; SANTOS,I.T.; SILVA,D.C.; PAIXÃO,G.P.; SEDIYAMA,C.S.
ABSTRACT: The repetitive use of glyphosate in the control of weeds in eucalyptus plantations has selected tolerant species such as Commelina benghalensis. Therefore, the use of herbicides of other mechanisms of action, such as saflufenacil, in rotation or combination with glyphosate, is necessary to reduce damages caused by C. benghalensis, whose sensitivity to herbicides can be influenced by the shading caused by the eucalyptus crop. This study aimed to assess the efficiency of saflufenacil in the management of C. benghalensis at different shading levels. Three experiments were carried out regarding a certain shading level (cultivation environment with 0, 40, and 55% shade). The experimental design was a randomized block design with five herbicide doses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shading; Chemical control; Biomass allocation; Weed; Benghal dayflower.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100249

Growth of Vernonia ferruginea Seedlings Submitted to Thermal Stress
Provedor de dados: 87
Autores: AMARAL,C.L.; SANTOS,J.I.; PORTUGAL,C.R.S.; BRAGA,A.F.; ALVES,P.L.C.A.
ABSTRACT: Stress caused by extreme temperatures is one of the main elements that limit the geographical distribution and the seasonal growth of several plants, causing a severe delay in their development, reducing the photosynthetic rate and signaling the synthesis of defense compounds. Considering the current environmental changes and the damages that these changes can cause in plant physiology and growth, the objective of this work was to understand the interactions between temperature, physiology and growth, and to characterize the impact of temperature changes on the initial development of Vernonia ferruginea Less. Seedlings of this species were conditioned in germination chambers at previously adjusted constant temperatures (10, 20, 25, 30, and 35 oC)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Leaf area; Gas exchanges.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100236

Growth, Development and Seed Production of Goosegrass1
Provedor de dados: 87
Autores: TAKANO,H.K.; OLIVEIRA JR,R.S.; CONSTANTIN,J.; BRAZ,G.B.P.; PADOVESE,J.C.
ABSTRACT E. indica is one of the most problematic weeds in the world because it is present in almost every continent, and there are reports of multiple resistance to herbicides by some biotypes. The objective of this paper was to analyze the growth, the development and the production of this plant's seeds, in order to generate information about its biology that can be useful for management. The experiment was carried out in a greenhouse from May to September 2015. Sixteen samples were taken during the development cycle of the plant: 3, 10, 17, 24, 31, 38, 45, 52, 59, 66, 73, 80, 87, 94, 101 and 108 days after emergence (DAE). The response variables were based on a leaf area and dry matter of each one of the parts of the plant and the number of seeds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eleusine indica; Relative growth; Biomass allocation; Weed biology.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200249

Temporal variations in the primary productivity of Eleocharis acutangula (Cyperaceae) in a tropical wetland environment
Provedor de dados: 88
Autores: Chagas,Gustavo Gomes; Freesz,Giselli Martins de Almeida; Suzuk,Marina Satika.
Wetland vegetation typically includes aquatic macrophytes with high primary production capacities. The present study investigated how hydrological variations affect biomass allocation and primary productivity in the emergent macrophyte Eleocharis acutangula (Roxb.) Schult. Eleocharis acutangula ramets were collected from the Campelo Lagoon flood plain (21°39'S, 41°12'W and 21°37S, 41°11'W) between March/2005 and February/2006. This region experienced an unusually short rainy period between November/2005 and February/2006 that generated atypically high primary production levels (128gDWm-2month-1) and total biomass gains (447gDWm-2) in May and June/2005 respectively. Our data indicated that primary production and biomass allocation were strongly influenced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic macrophyte; Biomass allocation; Primary production; Wetland.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000300008

Relationships between crown architecture and available irradiance in two cerrado species with different leaf phenologies
Provedor de dados: 88
Autores: Santos,Karine M.; Consolaro,Hélder N.; Moreno,Maria Inês C.; Prado,Carlos Henrique B.A.; Souza,João Paulo.
Structural differences between cerrado species with different leaf phenologies are linked to crown architecture, leaf production, and biomass allocation to shoots and leaves. The present study characterized crown structures and the patterns of biomass allocation to leaves and shoots in two woody cerrado species with contrasting leaf phenologies and quantified the irradiance reaching their leaves to determine the best period during the day for photosynthetic activity. The shoots and leaves of five individuals of both Annona coriacea (deciduous) and Hymenaea stigonocarpa (evergreen) were collected along a 50 m transect in a cerrado fragment within the urban perimeter of Catalão - GO, to determine their patterns of biomass allocation in their crowns. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Leaf area; Leaf display index; Orthotropic shoots; Plagiotropic shoots.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000400007

Root and Shoot Contribution to Carbon and Nitrogen Inputs in the Topsoil Layer in No-Tillage Crop Systems under Subtropical Conditions
Provedor de dados: 90
Autores: Redin,Marciel; Recous,Sylvie; Aita,Celso; Chaves,Bruno; Pfeifer,Ismael Cristiano; Bastos,Leonardo Mendes; Pilecco,Getúlio Elias; Giacomini,Sandro José.
ABSTRACT Recycling of carbon (C) and nitrogen (N) from plants into soils is decisive for maintaining soil organic matter and soil fertility. Therefore, we quantified plant biomass and C and N in the shoots and roots from the topsoil layer for a wide range of annual crops grown under subtropical conditions. We grew 26 species, 13 main crops, and 13 cover crops, in the field in standard sowing arrangements. Root biomass was recovered from the 0.00-0.20 m soil layer at flowering, and shoot biomass was measured at flowering for all crops and at maturity only for the main crops. Root dry matter (DM) exhibited an average of 14.9 ± 5.7 % of the total shoot biomass at flowering, and the mean shoot DM to root DM ratio was 6.9 (2.8-15.0) for the 26 crops considered....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Cover crops; Fabaceae; Poaceae; Shoot to root ratio.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100528

Responses of six Brachiaria spp. accessions to root zone flooding
Provedor de dados: 96
Autores: Caetano,Luana Pabla de Souza; Dias-Filho,Moacyr Bernardino.
Some morphophysiological responses of Brachiaria brizantha cv. Marandu, cv. Piatã, cv. Arapoty, B163, B166 and B. ruziziensis R124 were compared in plants grown in pots, under flooded and well-drained conditions. Flooding reduced leaf elongation rate in all accessions. Leaf dry mass production was lower under flooding than in the control plants in all the studied accessions, except in cv. Piatã. Root dry mass production was reduced by flooding in cv. Marandu and in R124, while the proportion of biomass allocated to roots was reduced by flooding only in R124. It was not possible to detect significant differences between water regimes in the percentage of biomass allocated to culms and leaves for all accessions. Flooding decreased the number of tillers in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Brachiaria brizantha; Leaf elongation rate; Photosynthesis; Relative growth rate.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008000500003

Nutrient use efficiency in interspecific hybrids of eucalypt
Provedor de dados: 124
Autores: Rosim,Camila Capodifoglio; Hsing,Tseng Yao; Paula,Rinaldo Cesar de.
ABSTRACT The aim of this work was to evaluate nutrient use efficiency in interspecific hybrids of eucalypt, as an aid in the development of forest breeding programs for areas with limited nutrients. To do this, five clones were evaluated at 2.25 years of age from hybrids resulting from crosses of Eucalyptus grandis x E. urophylla (C1, C2, C3, C4 and C5). The experimental design was of randomised blocks, with single-tree plots and 35 replications. For the study, four trees of average performance were cut down (replications) from each treatment (clone); the biomass, and content and efficiency of use of N, P, K, Ca and Mg were determined in the wood, bark, leaves and branches. The data were submitted to analysis of variance and the F-test, and the means...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutritional efficiency; Sustainability; Biomass allocation; Energy forests; Wood.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000300540

Growth of provenances of Cryptocarya alba during water stress and after re–watering in the nursery
Provedor de dados: 63
Autores: Meza,Sergio Enrique Espinoza; Arce,Marco Aliro Yáñez; Díaz,Carlos Renato Magni; Herrera,Eduardo Enrique Martínez; Ortega,Juan Francisco Ovalle; Miranda,Suraj Antonio Vaswani.
ABSTRACT: Intensification of drought in Mediterranean–type climates has limited seedling establishment. The knowledge of the ecology of selected species and its intraspecific variation to water stress at the seedling stage should be considered in order to overcome limitations. We investigated variations in growth, survival, and leaf–level physiology in four provenances of the endemic Cryptocarya alba (Mol.) during water stress and after re–watering. Seedlings were cultured in the nursery during 23 months and then subjected to two watering treatments based on soil water content (well–watered and water restriction, 0.38 and 0.17 cm3 cm−3, respectively) for 45 days. At the end of the watering treatments, seedling growth, above– and belowground biomass,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sclerophyllus forests; Seed sources; Drought; Plasticity; Biomass allocation.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000701002

Elevated atmospheric CO2 concentration improves water use efficiency and growth of a widespread Cerrado tree species even under soil water deficit
Provedor de dados: 39
Autores: Souza,João Paulo; Melo,Nayara Magry Jesus; Halfeld,Alessandro Dias; Vieira,Kamilla I. C.; Rosa,Bruno Luan.
ABSTRACT Changes in atmospheric CO2 levels are accompanied by ecological interactions involving other environmental factors, such as drought, which can severely alter the water balance of plants, thereby influencing sap flow, gas exchange, and plant growth. The objective of this study was to evaluate the water use economy, leaf gas exchange, and growth of young plants of the species Lafoensia pacari subjected to high concentrations of atmospheric CO2 ([CO2]) and soil water deficit. Increased vapor pressure deficit was observed from 1200 to 1800 hours. Plants under elevated [CO2] exhibited increased leaf photosynthesis, resulting in improved growth. Specific leaf area was lower in plants under high [CO2], mainly after soil water deficit treatment. Daily...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Leaf gas exchange; Sap flow; Specific leaf area; Water economy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300425

Improvement in light utilization and shoot growth in Hymenaea stigonocarpa under high CO 2 concentration attenuates simulated leaf herbivory effects
Provedor de dados: 39
Autores: Maia,Renata A.; Fernandes,Geraldo W.; Silva,Advanio I. S.; Souza,João Paulo.
ABSTRACT This study evaluated the photochemical responses of photosystem II and growth of Hymenaea stigonocarpa under CO2-enriched conditions with exposure to simulated herbivory events. After herbivory simulation in two distinct parts of the stem of plants (apex and base), chlorophyll a fluorescence, chlorophyll index, growth, extrafloral nectary density, leaf mineral nutrition, and biomass production were evaluated. Plants of H. stigonocarpa grown under high [CO2] after simulated herbivory in the apical part of the stem had higher electron transport rate, effective quantum yield of photosystem II, and chlorophyll contents. However, simulated herbivory in the basal portion of plants grown under high [CO2] increased plant height, branch and root length,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Cerrado; Climate change; Leaf damage; Leaf development.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300558

Growth and photosynthetic capacity in two woody species of cerrado vegetation under different radiation availability
Provedor de dados: 52
Autores: Ronquim,Carlos Cesar; Prado,Carlos Henrique B. de A.; Paula,Nádia Figueiredo de.
Seedlings of two woody species of cerrado vegetation, Copaifera langsdorffii and Eriotheca gracilipes, were studied under three different radiation availability (100, 80 and 30% transmittance). Full solar radiation brought about more biomass, higher total leaf area, higher maximal photosynthesis per crown on area or on mass bases and higher photosynthetic capacity on area bases. Only the photosynthetic capacity values on leaf mass bases were higher in both species under low radiation availability (80 and 30% transmittance). The differences of accumulated biomass appeared more clearly after 4 months of sowing but the root/shoot dry biomass ratio and height were maintained constant for both species independently of the available radiation. Cultivated under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Cerrado; Copaifera langsdorffii; Eriotheca gracilipes; Growth in shade; Photosynthesis.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200016

Physiological and biochemical responses to drought stress in Barbados cherry
Provedor de dados: 61
Autores: Medeiros,David Barbosa; Silva,Elizamar Ciriaco da; Santos,Hugo Rafael Bentzen; Pacheco,Cinthya Mirella; Musser,Rosimar dos Santos; Nogueira,Rejane Jurema Mansur Custódio.
To evaluate physiological genotypic differences between two Barbados cherry genotypes (13- and 14-CPA) under water deficit, initial growth, water relations, and organic solute accumulation were evaluated in an experiment performed using four-month-old seedlings, which were subjected to four water treatments (100, 75, 50, and 25% of field capacity), with five replications. Severe water deficit (25% of field capacity) negatively affected plant height, stem diameter, leaf area, dry matter of the leaves and stem to both genotypes, and root dry matter to genotype 13-CPA. Predawn (Ywpd) and midday leaf water potentials (Ywmd) were reduced in plants grown under 25% of field capacity, only in the genotype 14-CPA. There was not a change in relative water content,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malpighia emarginata DC; Soluble organic solutes; Biomass allocation; Water relations; Water deficit.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000300005

Shoot-foliage relationships in deciduous, semideciduous, and evergreen cerrado tree species
Provedor de dados: 61
Autores: Souza,João Paulo; Prado,Carlos Henrique B. A.; Albino,Ana Lúcia S.; Damascos,Maria A.
The morphology and the biomass allocation in shoots and leaves were investigated in 15 cerrado tree species with distinct leaf phenology growing under natural conditions. Higher values of leaf/shoot ratio on mass base, individual leaf area, leaf area per shoot, leaf display index, and leaf number per shoot length were found in deciduous than in evergreen species. The differences about shoot-foliage relationship across leaf phenological groups could be explained by plagiotropic shoots on deciduous and by erect shoots in semideciduous and evergreen species. Plagiotropic shoots allow similar irradiance along shoots and high biomass allocation in favor of leaves without foliage self-shading in deciduous tree species. The structural differentiation between...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Cerrado; Deciduousness; Irradiance; Leaf area; Orthotropic; Plagiotropic; Shoot.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000100009

Growth evaluation and water relations of Erythrina velutina seedlings in response to drought stress
Provedor de dados: 61
Autores: Silva,Elizamar Ciríaco da; Silva,Marcos F. A.; Nogueira,Rejane J. M. C.; Albuquerque,Manoel B.
Erythrina velutina Willd. (common name: mulungu) is a deciduous, heliophyte found in the semi-arid region of northeastern Brazil. To evaluate the growth and water relations of mulungu seedlings in soils with different degrees of moisture content, an experiment was carried out under greenhouse conditions using four water treatments (100%, 75%, 50% and 25% of the field capacity- FC). Predawn (Ψpdw) and midday leaf water potential (Ψmdw), relative water content (RWC), plant height, number of leaves, stem diameter, leaf area (LA), specific leaf area (SLA), leaf area ratio (LAR), dry matter in different organs, biomass partitioning and root:shoot ratio were evaluated. No differences were detected between treatments for Ψpdw after 30 days; however, at midday,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass allocation; Dry matter; Leaf area; Root to shoot ratio; Relative water content; Water potential.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000400002