Results 71 to 80 of about 1,507 (191)

Descriptors for terpene esters from chromatographic and partition measurements: Estimation of human odor detection thresholds [PDF]

open access: yes, 2020
We have used gas chromatographic retention data together with other data to obtain Abraham descriptors for 30 terpene esters. These include the air-water partition coefficient, as log Kw, for which no experimental values are available for any terpene ...
Abraham, Michael H   +2 more
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Pentatomídeos (Hemiptera) associados a espécies nativas em Itaara, RS, Brasil

open access: yesBiotemas, 2010
Com o objetivo de determinar qualitativamente e quantitativamente os pentatomídeos associados a diferentes espécies botânicas nativas, no período de setembro de 2005 a setembro de 2006, foram coletados insetos em nove espécies: Gochnatia polymorpha ...
Juliana Garlet   +2 more
doaj   +1 more source

Avaliação física, morfológica e sanitária de sementes de araçá (Psidium cattleianum Sabine - Myrtaceae) provenientes de frutos amarelos e vermelhos. [PDF]

open access: yes, 2014
Resumo
ABREU, D. C. A. de   +4 more
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CARACTERIZAÇÃO MORFOLÓGICA DE PLÂNTULAS DURANTE A GERMINAÇÃO DE SEMENTES DE Psidium cattleianum E Acca sellowiana (MYRTACEAE)

open access: yesCiência Florestal, 2015
This study describes the morphological characterization during seedling development of Psidium cattleianum Sabine e Acca sellowiana (O. Berg) Burret. To describe germination and seedling morphology, 100 seeds were allowed to germinate on germitest paper ...
Juliano Pereira Gomes   +4 more
doaj  

Influence of light and nutrient conditions on seedling growth of native and invasive trees in the Seychelles [PDF]

open access: yes, 2018
Several recent studies have shown that plant invasions can occur in resource-poor and relatively undisturbed habitats. It is, therefore, important to investigate whether and how life-history traits of species invasive in such habitats differ from those ...
Dietz, Hansjörg   +3 more
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Moscas frugívoras e seus parasitoides nos municípios de Pelotas e Capão do Leão, Rio Grande do Sul, Brasil Frugivorous flies and their parasitoids in the cities of Pelotas and Capão do Leão, Rio Grande do Sul, Brazil

open access: yesCiência Rural, 2012
As moscas frugívoras (Tephritoidea) são as principais pragas da fruticultura de clima temperado no Brasil. O objetivo do presente trabalho foi avaliar a infestação desses dípteros e a ocorrência de seus parasitoides em frutíferas nos municípios de ...
Adrise Medeiros Nunes   +5 more
doaj   +1 more source

Pentatomids associated with different forest species in Itaara, RS, Brazil [PDF]

open access: yesBiotemas, 2010
The objective of this study was to determine qualitatively and quantitatively the pentatomid fauna associated with the canopy of different native species during the period from September 2005 to September 2006.
Ervandil Corrêa Costa   +2 more
doaj  

Aires protégées et lutte contre les bioinvasions : des objectifs antagonistes ? Le cas de Psidium cattleianum Sabine (Myrtaceae) autour du parc national de Ranomafana à Madagascar.

open access: yesVertigO, 2008
Bioinvasion is a subject that has not been widely addressed and taken into account within environmental policy in Madagascar. However, many studies seem to show how ecosystems and species could be threatened in the medium term by invasive species.
Stéphanie M. Carrière   +2 more
doaj   +1 more source

Production de références pour le désherbage de la culture de canne à sucre. La Réunion 2008 [PDF]

open access: yes, 2009
Au cours de la campagne 2008, trois types d'essais ont été conduits sur les herbicides en culture de canne à sucre: - dix essais d'efficacité d'herbicides en pré-levée et en post-levée; - deux essais de sélectivité sur des adjuvants; - un essai d ...
Chambre d'agriculture de la Réunion - REU   +7 more
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