Results 91 to 100 of about 12,934 (202)

Influences of image resolution on herbaceous root morphological parameters

open access: yes上海师范大学学报. 自然科学版, 2014
Root images of four herbaceous species (including Plantago virginica,Solidago canadensis,Conyza canadensis and Erigeron philadelphicus) were obtained by using EPSON V7000 scanner with different resolutions.Root morphological parameters including root ...
ZHANG Zeyou, WANG Xianjun, GUO Shuiliang
doaj   +1 more source

Использование количественных морфологических признаков для выявления межпопуляционных различий у Conyza canadensis (L.) Cronq [PDF]

open access: yes, 2001
Целью исследования было выявление различий в структуре количественных признаков популяций наиболее опасных инвазивных видов, к числу которых относится Conyza ...
Тохтарь, В. К.
core   +1 more source

Four rural cemeteries in central western NSW: Islands of Australiana in a European sea? [PDF]

open access: yes, 2013
Vascular plants present in groundstoreys of variously–managed areas in four cemeteries in central western NSW – two on the Central Western Slopes (Garra and Toogong) and two on the Central Tablelands (Lyndhurst and Carcoar) – were recorded over periods ...
Cole, Ian A.   +3 more
core  

Effect of Coriaria arborea on seed banks during primary succession on Mt Tarawera, New Zealand [PDF]

open access: yes, 2002
An experiment was conducted over two years to investigate the effect of Coriaria arborea, a native nitrogen-fixing shrub, on soil seed banks at sites representing a post-volcanic successional sequence on Mt Tarawera, New Zealand.
Clarkson, Beverley R.   +3 more
core   +2 more sources

Plantas daninhas na pós-colheita de milho nas várzeas do rio São Francisco, em Minas Gerais. [PDF]

open access: yes, 2003
Realizou-se um estudo na região do Alto São Francisco, Minas Gerais, no final da safra agrícola 1997/1998, visando identificar as plantas daninhas que permanecem nas áreas após a colheita do milho e sua distribuição ao longo da área estudada, destacando ...
BULHER D. D.   +14 more
core   +3 more sources

Plantas americanas nuevas para la flora adventicia del sur de España [PDF]

open access: yes, 2007
New data about american neophytes for southern Andalusian flora.Palabras clave. Corología, xenófitos americanos, especies invasoras, Andalucía, SO de España.Key words.
Bartoli, Adriana   +3 more
core   +4 more sources

Influence of spray volume on the control of Conyza spp. in soybean pre-sowing with burndown [PDF]

open access: yesBrazilian Journal of Biology
The herbicide mixture diclosulam + halauxifen appears to be an alternative for the control of Conyza spp.; however, the spray volume may result in different spray deposition effects on the target and, therefore, on the control.
G. P. Silva   +10 more
doaj   +1 more source

Modelado del flujo de emergencia de Conyza bonariensis "Rama Negra"

open access: yesSemiárida, 2022
Conyza bonariensis, es una especie ruderal que se presenta en gran parte del área agrícola del país y del mundo. En la Argentina se han clasificado alrededor de 23 especies de las cuales en la región semiárida y subhúmeda pampeana es común hallar dos ...
Paula Lucrecia Llul   +1 more
doaj  

Um alerta sobre a resistência de plantas daninhas ao glifosato. [PDF]

open access: yes, 2012
Levamos pouco tempo para mais uma vez verificar que a historia se repete. Aconteceu o que muitos não acreditavam ser possível acontecer, a seleção de plantas daninhas resistentes ao glifosato, indicando que nem mesmo esse produto esta imune aos ...
ADEGAS, F. S.   +6 more
core  

Caracterización morfológica de Conyza blakei, Conyza bonar/ens/svar. bonariensis, Conyza sumatrensisvar. sumatrens/sy Conyza lorentzii en el sudeste bonaerense (Argentina)

open access: yes, 2018
El género Conyza Less. incluye especies ruderales, que crecen en ambientes ruderales, bordes de carreteras y vías férreas. También han sido citadas como malezas en pasturas, cultivos anuales y perennes bajo sistemas de Siembra Directa (SD), adaptándose a estos ambientes poco disturbados ya que son sensibles a la remoción de suelo.
ULZURRUN, PATRICIA DIEZ DE   +4 more
openaire   +1 more source

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