Quality assessment of urban trees: A comparative study of physiological characterisation, airborne imaging and on site fluorescence monitoring by the OJIP-test

Hermans, Christian; Smeyers, Mathias; Maldonado-Rodríguez, Ronald; Eyletters, Murielle; Strasser, Reto J.; Delhaye, Jean-Paul

doi:10.1078/0176-1617-00917

Cited by 103 publications

(75 citation statements)

References 16 publications

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“…Parameters selected for analysis were: (i) maximum quantum yield of primary photochemistry (Fv/Fm); (ii) maximum quantum yield of non-photochemical excitation (Dio/ABS); (iii) probability that an absorbed photon moves an electron further than QA -(Eto/ABS); (iv) density of reaction centers per chlorophyll (RC/ABS); and Strasser et al 2000). Finally, fluorescence parameters were used in accordance with Hermans et al (2003) to analyze the vitality of plants subjected to the different treatments, comparing mean values of all assessments during the two-year monitoring period.…”

Section: Chlorophyll Fluorescence Measurementsmentioning

confidence: 99%

Is tree shelter protection an effective complement to weed competition management in improving the morpho-physiological response of holm oak planted seedlings?

Ceacero¹,

Navarro-Cerrillo²,

Díaz-Hernández³

et al. 2014

iForest

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Section: Chlorophyll Fluorescence Measurementsmentioning

confidence: 99%

Is tree shelter protection an effective complement to weed competition management in improving the morpho-physiological response of holm oak planted seedlings?

Ceacero¹,

Navarro-Cerrillo²,

Díaz-Hernández³

et al. 2014

iForest

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“…Segundo Hermans et al (2003), o PI total é importante parâmetro para distinguir o comportamento fotossintético de árvores. Nesse sentido, foi observado menor valor de PI total de C. echinata na adubação fosfatada seguido dos melhores resultados na adubação nitrogenada e nas formas combinadas de NPK, porém, sem diferença significativa.…”

Section: Discussionunclassified

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Cuzzuol

Canal

Gama

et al. 2016

Hoehnea

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-(Relationships of N, P, and K with the chlorophyll fluorescence, leaf nutrient accumulation, and soluble carbohydrate concentration in the stem of Caesalpinia echinata Lam.). The aim of this study was to evaluate the effect of N, P, and K in the accumulation of these elements in the leaf and their relations with the chlorophyll a fluorescence parameters and with the concentration of soluble carbohydrates in stems of young plants of Caesalpinia echinata. Eight-month-old plants were grown in polyethylene pots. which received N, P, and K in isolated form ((NH 4 ) 2 SO 4 , P 2 O 5 , KCl) and the combined form NPK in the ratio 10:10:10 and 04:14:08. The pots were arranged in randomized blocks. The applications were repeated each 90 days during 450 days. The results demonstrated that C. echinata is more responsive to N. Plants showed higher leaf N concentrations and positive correlation with the concentration of chlorophyll a and b. However, the treatments did not influence the potential quantum yield of PSII (FV/FM) and the performance index (PITOTAL). The concentration of sucrose in the stem bark was higher than that of secondary xylem and superior in fertilizers rich in P (P and NPK 04:14:08) suggesting increased demand of substrate for forming the wood in these treatments, which could result in more resistant stems and higher survival of the plants under field conditions. Keywords: Brazilwood, fluorescence, nutrients, soluble carbohydrates RESUMO -(Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.). Esse trabalho foi realizado com o objetivo de avaliar o efeito de suplementação de N, P e K no acúmulo foliar desses elementos e suas relações com os parâmetros da fluorescência da clorofila a e com a concentração de carboidratos solúveis em caules de plantas jovens de Caesalpinia echinata Lam. Plantas com oito meses de idade foram cultivadas em vasos que receberam N, P e K na forma isolada ((NH 4 ) 2 SO 4 , P 2 O 5 , KCl) e combinada na proporção 10:10:10 e 04:14:08, distribuídos em blocos inteiramente casualizados. As aplicações foram repetidas a cada 90 dias durante 450 dias. Os resultados demonstraram que C. echinata é mais responsiva ao N. As plantas apresentaram maiores concentrações de N foliar e correlação positiva com a concentração das clorofilas a e b. No entanto, os tratamentos não influenciaram no rendimento quântico potencial do FSII (FV/FM) e no índice de desempenho (PITOTAL). A concentração da sacarose na casca do caule foi maior do que do xilema secundário e superior nas adubações fosfatada e em NPK 04:14:08 sugerindo maior demanda de substrato para a formação da madeira nesses tratamentos, o que poderia resultar em caules mais resistentes e maior capacidade de sobrevivência das plantas em condições de campo. Palavras-chave: carboidratos solúveis, fluorescência, nutrientes, pau-brasil IntroduçãoEstudos recentes têm demonstrado que as arbóreas nativas tropicais respondem à aplicação de N, P e K ap...

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“…3A) could have resulted from the inactivity of the reaction centers, which may favor greater energy dissipation in the form of heat and fluorescence, as deduced from the high Fv/Fm values (GhassemiGolezani and Lotfi, 2015). This may be associated with increased heat sinks (heat sink centers or silent centers), which may absorb light in a similar manner as that of active reaction centers, but are unable to store the excitation energy as redox energy and dissipate their total energy as heat (Hermans et al, 2003). The Fv/Fm ratio is frequently used as an indicator of the photoinhibitor or other injury caused to the PSII complexes (Rohacek, 2002).…”

Section: Discussionmentioning

confidence: 99%

Field performance of maize (Zea mays L.) cultivars under drought stress

Ghassemi‐Golezani

Heydari

Dalil

2018

AAS

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This research was carried out in 2014 at the Research Farm of the University of Tabriz, Iran. The experiment was arranged as split plot on the basis of randomized complete block with three replicates to assess the effects of four irrigation intervals (irrigations after 60, 80, 100 and 120 mm evaporation) on physiological and agronomical traits of three cultivars of maize (Zea mays L.; 'SC704', 'NS640', 'DC303': late, mid and early maturing, respectively). Irrigation intervals and maize cultivars were assigned to the main and sub-plots, respectively. Leaf temperature of all maize cultivars significantly increased, but chlorophyll content index, maximum efficiency of photosystem II, number of grains per plant, 1000 grain mass, plant biomass, grain yield and harvest index significantly decreased with increasing irrigation intervals. Late maturing cultivar ('SC704') was superior in all studied traits, followed by mid ('NS640') and early ('DC303') maturing cultivars. It was concluded that water limitation can potentially reduce performance of maize cultivars in the field, but the extent of this reduction depends on genotype and severity of stress.Key words: chlorophyll content; leaf temperature; maize; photosystem II; drought stress IZVLEČEK USPEVANJE SORT KORUZE (Zea mays L.) V RAZMERAH SUŠNEGA STRESARaziskava je bila opravljena v sezoni 2014 na Research Farm of the University of Tabriz, Iran. Poskus je bil zasnovan kot poskus z deljenkami na osnovi popolnega naključnega bločnega poskusa s tremi ponovitvami za ovrednotenje učinkov štirih načinov namakanja (namakanje po 60, 80, 100 in 120 mm evaporacije) na osnovi fizioloških in agronomskih lastnosti treh sort koruze (Zea mays L.; 'SC704', 'NS640', 'DC303': zgodnje, srednje in pozno dozorevajoča sorta). Načini namakanja so bili vrednoteni na glavnih ploskvah, sorte koruze na podploskvah. Temperatura lista je pri vseh sortah značilno naraščala z večanjem intervala namakanja, lastnosti kot so indeks vsebnosti klorofila, maksimalna učinkovitost fotosistema II, število zrn na rastlino, masa 1000 zrn, biomasa rastlin, pridelek zrnja in žetveni indeks pa so se z večanjem intervala namakanja značilno zmanjšale. Pozno dozorevajoča sorta ('SC704') je bila v vseh preučevanih lastnostih najboljša, sledili sta ji srednje ('NS640') in zgodaj ('DC303') dozorevajoči sorti. Ugotovljeno je bilo, da pomanjkanje vode lahko potencialno zmanjša uspevanje koruze, a je obseg zmanjšanja odvisen od genotipa in jakosti stresa.

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Quality assessment of urban trees: A comparative study of physiological characterisation, airborne imaging and on site fluorescence monitoring by the OJIP-test

Cited by 103 publications

References 16 publications

Is tree shelter protection an effective complement to weed competition management in improving the morpho-physiological response of holm oak planted seedlings?

Is tree shelter protection an effective complement to weed competition management in improving the morpho-physiological response of holm oak planted seedlings?

Relações do N, P e K com a fluorescência da clorofila, teores de nutrientes foliares e carboidratos solúveis do caule de Caesalpinia echinata Lam.

Field performance of maize (Zea mays L.) cultivars under drought stress

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