Anatomy of vegetative organs, inflorescence axis and pedicel in the Neoregelia bahiana complex (Bromeliaceae): taxonomic and ecological importance

2018 ◽  
Vol 36 (7) ◽  
pp. e01800 ◽  
Author(s):  
Kleber Resende Silva ◽  
Leonardo M. Versieux ◽  
Aline Oriani
Keyword(s):  
Vegetative Organs ◽  
Inflorescence Axis ◽  
Ecological Importance

scholarly journals Analysis of anatomical and micromorphological characteristics of Iva xanthifolia nutt.

2007 ◽  
pp. 49-55
Author(s):  
Lana Krstic ◽  
Goran Anackov ◽  
Boza Pal ◽  
Ruzica Igic ◽  
Jadranka Lukovic ◽  
...  
Keyword(s):  
North American ◽  
Weed Species ◽  
Anatomical Structures ◽  
Vegetative Organs ◽  
Plant Organ ◽  
Inflorescence Axis ◽  
Mechanical Tissue

Iva xanthifolia is a North American weed species, which was introduced and naturalized in Europe. Anatomical and micromorphological characteristics of this species were investigated, in order to get better knowledge of its biology, which could help in development of strategies for prevention of its spreading. Detailed descriptions of lamina, petiole, stem and inflorescence axis anatomical structures were given, together with micromorphological characteristics of epidermis and indumentum of lamina, petiole, stem, inflorescence axis, involucre and fruit. All vegetative organs had mesomorphic structure, with some xeromorphic adaptations. Mechanical tissue was well developed, which gave those plants additional strength and resistance. Trichomes were the most numerous on lamina and in the region of inflorescence, while rare on petiole and stem epidermis and their distribution varied according to plant organ.

Anatomy of vegetative organs and inflorescence axis ofOrectanthe sceptrum(Xyridaceae–Poales)1

2015 ◽  
Vol 142 (3) ◽  
pp. 258-268 ◽  
Author(s):  
Fernanda Martins Gonzaga de Oliveira ◽  
Vera Lucia Scatena ◽  
Aline Oriani
Keyword(s):  
Vegetative Organs ◽  
Inflorescence Axis

Optimum harvest date of maize for biogas and silage purposes

2009 ◽  
Vol 57 (2) ◽  
pp. 119-125
Author(s):  
G. Hadi
Keyword(s):  
Dry Matter ◽  
Biogas Production ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Dry Mass ◽  
Matter Content ◽  
Harvest Date ◽  
Dry Matter Content ◽  
Dry Matter Yield ◽  
Vegetative Organs

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.

A new species of the genus Calligonum (Polygonaceae) from Turkmenistan

2018 ◽  
pp. 51-55
Author(s):  
A. V. Pavlenko
Keyword(s):  
New Species ◽  
Vegetative Organs ◽  
A New Species

A new species Calligonum inerme Kamelin, Gorelova et A. Pavlenko is described from the Badkhyz highland in South-East Turkmenistan. This species is similar to C. junceum (Fisch. et C. A. Mey.) Litv. by habit and morphology of vegetative organs, but differs from this and other species of the genus Calligonum L. by glabrous nutlets without wings or bristles.

Chemical Ecology and Off-Flavour Substances

1988 ◽  
Vol 20 (8-9) ◽  
pp. 167-178
Author(s):  
O. M. Skulberg
Keyword(s):  
Environmental Factors ◽  
Chemical Ecology ◽  
Aquatic Environment ◽  
Metabolic Pathways ◽  
Chemical Properties ◽  
Relevant Research ◽  
Fundamental Research ◽  
Biotic Effects ◽  
Ecological Mechanisms ◽  
Ecological Importance

Off-flavour substances may be regarded as a resource which can be used to study special ecological mechanisms. Relevant research on off-flavours is inextricably combined with the study of perception, ethology, genetic control etc. The chemicals concerned are commonly perceived by the senses of olfaction and gustation. Thus research on the chemical ecology of off-flavour substances in the aquatic environment involves the study of a variety of disciplines. For example the biochemistry of the relevant substances and appropriate metabolic pathways must be considered. Chemical properties are important for the behaviour of the substances. The production of off-flavours by organisms is related to phenological circumstances. The biotic effects of ecologically significant substances are dependent on several environmental factors. This paper draws attention to the possible application of fundamental research in this area to selected problems of ecological importance.

Mapeamento do Descarte de Medicamentos em um Município do Sul de Minas Gerais/ Mapping and Disposal of Medicines at a Municipality in Southern Minas Gerais

1970 ◽  
Vol 5 (1) ◽  
pp. 35-44
Author(s):  
Daniele Cristina Braz Dos Santos ◽  
Alexandre Magno Batista Machado ◽  
Fábio Vieira Lacerda
Keyword(s):  
Water Resources ◽  
Minas Gerais ◽  
Sectional Study ◽  
Self Medication ◽  
The Public ◽  
Unused Medications ◽  
Ecological Importance ◽  
City State ◽  
Soil Water Resources ◽  
Proper Disposal

Objetivo: O trabalho teve por objetivo mapear, quantificar e verificar a destinação dos medicamentos vencidos e em desuso, e contribuir com uma discussão sobre os problemas gerados com a destinação imprópria desses medicamentos e os impactos causados ao meio ambiente na cidade de Itajubá/MG. Materiais e Métodos: A pesquisa utilizou o método quantitativo de corte transversal, sendo realizada no período de maio a agosto de 2014. Participaram da pesquisa um total de trinta farmácias da cidade de Itajubá. As entrevistas foram realizadas com os responsáveis técnicos das farmácias (farmacêuticos), de forma individual, procurando identificar a forma de manejo e descarte dos fármacos. Do mesmo modo, procurou-se evidenciar como os colaboradores se comportam em relação a importância ecológica do descarte correto e como veem a importância de conscientizar a população. Resultados e Discussão: O consumo de medicamentos vem aumentando expressivamente nas últimas décadas, devido ao estímulo publicitário e à automedicação. Com isso, cada vez mais medicamentos são produzidos e descartados de forma inadequada, o que põe em risco o solo, os recursos hídricos e principalmente, a saúde humana. Por meio dos resultados obtidos pode-se perceber que poucos indivíduos possuem a conscientização do descarte correto dos medicamentos. Conclusão: A falta de colaboração por parte do poder público local em instruir a comunidade pode ser um dos motivos onde ainda existem muitas pessoas desinformadas. Apesar das farmácias estarem implementando um programa de destinação, poucas entendem ou sabem a destinação correta dos resíduos de medicamentos. Palavra-chave: Saúde. Medicamento. Destinação. ABSTRACTObjective: The study aimed to map, quantify and verify the allocation of accrued and unused medications, and contribute to a discussion of the problems created by improper disposal of these medications and the impacts to the environment in the Itajubá city state/MG. Materials and Methods: The research used a cross quantitative sectional study and was conducted in the period May to August 2014.  A total of 30 pharmacies from Itajubá participated. Interviews were conducted with the technical managers of the establishments surveyed, individually, seeking to identify the form of handling and disposal of medications. Similarly, sought to highlight how employees behave towards the ecological importance of proper disposal and how they see the importance to educate the public. Results and Discussion: The consumption of drugs has been increasing significantly in recent decades due to the advertising stimulus and self-medication. With this, more and more medications are produced and discarded improperly, putting the soil, water resources and especially human health at risk. Through the results obtained can be seen that few individuals possess the awareness of proper disposal of medications. Conclusion: The lack of cooperation from the local government to instruct the community can be one of the reasons where there are still many uninformed people. Although pharmacies are implementing a program allocation, few understand or know the proper disposal of waste medicines. Keywords: Health. Medicine. Destination

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