scholarly journals AVALIAÇÃO DA FLORÍSTICA, DO PORTE E DA FITOSSANIDADE ATUAL DA ARBORIZAÇÃO DO PARQUE INTERNACIONAL EM SANT’ANA DO LIVRAMENTO/RIVERA, BRASIL/URUGUAI

2019 ◽  
Vol 7 (1) ◽  
pp. 112 ◽  
Author(s):  
Ana Claudia Bentancor Araujo ◽  
Cibele Rosa Gracioli ◽  
Edenir Luis Grimm ◽  
Solon Jonas Longhi
Keyword(s):  
Magnolia Grandiflora ◽  
Ligustrum Japonicum ◽  
Chamaecyparis Lawsoniana ◽  
Ficus Microcarpa

O presente estudo teve como objetivo a avaliação quantitativa e qualitativa da composição vertical do Parque Internacional localizado no município de Sant’Ana do Livramento/BR e Rivera/UY, visando identificar, classificar e apresentar uma listagem das espécies arbóreas encontradas com suas respectivas famílias e número de ocorrência, além de avaliar o estado fitossanitário e a necessidade de manejo das árvores. Foram inventariados todos os indivíduos existentes com circunferência à altura do peito (CAP) maior ou igual a 15,7cm. Nessa etapa foram anotados e medidos dados referentes ao indivíduo como: CAP, altura total, origem, estado fitossanitário e necessidade de poda leve ou pesada. Foram inventariadas 300 árvores pertencentes a 24 famílias. Verificaram-se um baixo índice de espécies nativas existentes no Parque, 31%, e um alto percentual de árvores exóticas, 69%. Quanto ao número de indivíduos, destacam-se a família Cupressaceae, seguida pela Moraceae, Bignoniaceae, Oleaceae, Pinaceae e Fabaceae. Dentre os indivíduos encontrados as espécies Ligustrum japonicum seguida por Ficus microcarpa, Chamaecyparis lawsoniana e Handroanthus heptaphyllus foram as mais abundantes. Foram encontrados 18,27% indivíduos com o estado fitossanitário ruim e 81,73% indivíduos em bom estado. Dos indivíduos em mau estado fitossanitário destacam-se Magnolia grandiflora, Ligustrum japonicum e Handroanthus heptaphyllus que se encontram infestadas por ervade-passarinho.

scholarly journals Interior Performance of Temperate Zone Landscape Plants

1988 ◽  
Vol 6 (3) ◽  
pp. 84-86
Author(s):  
G.J. Keever ◽  
G.S. Cobb ◽  
J.C. Stephenson
Keyword(s):  
Poor Quality ◽  
Magnolia Grandiflora ◽  
Aucuba Japonica ◽  
Light Levels ◽  
Acceptable Quality ◽  
Ophiopogon Japonicus ◽  
Ligustrum Japonicum ◽  
Euonymus Fortunei ◽  
Mahonia Aquifolium

Cleyera (Ternstroemia gymnanthera), spreading lilyturf (Liriope spicata), Southern magnolia (Magnolia grandiflora), heavenly bamboo (Nandina domestica), mondo grass (Ophiopogon japonicus), climbing fig (Ficus pumila), and variegated waxleaf privet (Ligustrum japonicum ‘Variegatum ’) grown under 3 production light levels and shade-grown golden Japanese euonymus (Euonymus japonica ‘Aureomarginata’), plantain lily (Hosta ventricosa), King's Ransom Oregon grapeholly (Mahonia aquifolium ‘King' Ransom’), dwarf gold-dust plant (Aucuba japonica ‘Variegata Nana’), Wood's Dwarf heavenly bamboo (Nandina domestica ‘Wood's Dwarf’), Japanese anise-tree (Illicium parviflorum), and Pink Lady Indian hawthorn (Raphiolepis indica ‘Pink Lady’) adapted well to interior conditions following productlon. Bugleweed (Ajuga reptans) and variegated wintercreeper euonymus (Euonymus fortunei ‘Varietgata’) grown under 64% light exclusion were of acceptable quality while plants grown in full sun and under 47% light exclusion were of poor quality. Quality of Wintergreen Korean boxwood (Buxus microphylla koreana ‘Wintergreen’) grown under all production light levels was unacceptable after 15 weeks in the interior environment.

Electron Microscopy of Silicon Deposits in Foliar Idioblasts of Magnolia Grandiflora

1976 ◽  
Vol 34 ◽  
pp. 374-375
Author(s):  
Michael T. Postek
Keyword(s):  
Electron Microscopy ◽  
Water Loss ◽  
Normal Development ◽  
Magnolia Grandiflora ◽  
Plant Body ◽  
Normal Metabolism ◽  
Hydrated Oxide

Silicon occurs naturally in plants in the form of its hydrated oxide (SiO2.nH2O) commonly called silica. Silica has been shown to be a necessary element in the normal development of many plants, playing an array of roles including strengthening, protection, and reduction of water loss. Deposition of silica in various portions of the plant body, especially the leaves, may also be viewed as a way for the plant to dispose of any excess silica taken up beyond that necessary for normal metabolism.Studies of this “opaline” silica have thus far been limited to species of the Cyperaceae and Gramineae known to possess significant quantities of silica. Within the Magnoliaceae, certain “glistening” idioblast cells at the foliar veinlet termini and vein sheaths of Magnolia grandiflora (1) have been suspected to be siliceous in nature.

Investigations on the main neolignan constituent methylhonokiol of Magnolia grandiflora as a new anti-inflammatory lead compound

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
W Schühly ◽  
A Hüfner ◽  
EM Wenzig ◽  
O Kunert ◽  
E Haslinger ◽  
...  
Keyword(s):  
Lead Compound ◽  
Magnolia Grandiflora ◽  
Anti Inflammatory

RESPIRATORY TRENDS IN PERIANTH SEGMENTS OF MAGNOLIA GRANDIFLORA

1958 ◽  
Vol 45 (9) ◽  
pp. 660-663 ◽  
Author(s):  
Wesley O. Griesel ◽  
Jacob B. Biale
Keyword(s):  
Magnolia Grandiflora

scholarly journals DESFOLHAMENTO E MORTE PROGRESSIVA DE RAMOS DE Ficus microcarpa (MORACEAE) EM BELO HORIZONTE, MINAS GERAIS, BRASIL

2019 ◽  
Vol 8 (3) ◽  
pp. 18
Author(s):  
Mívia Rosa de Medeiros Vichiato ◽  
Marcelo Vichiato ◽  
Percílio Wander da Silva ◽  
Cássia Lafetá do Couto ◽  
Leonardo De Souza Pereira ◽  
...  
Keyword(s):  
Minas Gerais ◽  
Botryodiplodia Theobromae ◽  
Lasiodiplodia Theobromae ◽  
Ficus Microcarpa ◽  
Belo Horizonte

Fatores bióticos a abióticos são importantes agentes de declínio de árvores de interesse na arborização urbana. Este trabalho objetivou a investigação dos problemas fitossanitários (desfolhamento e morte progressiva de ramos) apresentados por Ficus microcarpa (Moraceae) localizados no canteiro central da Avenida Bernardo Monteiro, em Belo Horizonte, Minas Gerais, Brasil. Análises entomológicas e amostras de plantas infectadas revelaram que os agentes causadores da queda de folhas e da morte progressiva de ramos dos Ficus microcarpa são, respectivamente, a mosca-branca-dos-fícus - Singhiella simplex (Hemiptera: Aleyrodidae) e o fungo Lasiodiplodia theobromae (Pat.) Griffon & Maubl. (= Botryodiplodia theobromae Pat.).

Hydraulic segmentation does not protect stems from acute water loss during fire

2021 ◽  
Author(s):  
William A Hoffmann ◽  
Amanda C Rodrigues ◽  
Nicholas Uncles ◽  
Lorenzo Rossi
Keyword(s):  
Water Uptake ◽  
Water Loss ◽  
High Water ◽  
Fire Plume ◽  
Magnolia Grandiflora ◽  
Hydraulic Failure ◽  
Factors Influencing ◽  
Wide Range ◽  
Transport Path ◽  
Measured Water

Abstract The heat plume associated with fire has been hypothesized to cause sufficient water loss from trees to induce embolism and hydraulic failure. However, it is unclear whether the water transport path remains sufficiently intact during scorching or burning of foliage to sustain high water loss. We measured water uptake by branches of Magnolia grandiflora while exposing them to a range of fire intensities, and examined factors influencing continued water uptake after fire. Burning caused a 22-fold mean increase in water uptake, with greatest rates of water loss observed at burn intensities that caused complete consumption of leaves. Such rapid uptake is possible only with steep gradients in water potential, which would likely result in substantial cavitation of xylem and loss of conductivity in intact stems. Water uptake continued after burning was complete, and was greatest following burn intensities that killed leaves but did not consume them. This post-fire uptake was mostly driven by rehydration of the remaining tissues, rather than evaporation from the tissues. Our results indicate that the fire-plume hypothesis can be expanded to include a wide range of burning conditions experienced by plants. High rates of water loss are sustained during burning, even when leaves are killed or completely consumed.

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