Results 11 to 20 of about 10,866 (212)

Potencial alelopático de plantas de cobertura no controle de picão-preto (Bidens pilosa L.) Cover plants allelopathic potential in Bidens pilosa L. control

open access: yesCiência e Agrotecnologia, 2004
Extratos aquosos da parte aérea de mucuna-preta (Stilozobium aterrimum Piper & Tracy), mucuna rajada (Stilozobium sp.), Crotalaria juncea L., Crotalaria spectabilis Roth, guandu e guandu anão (Cajanus cajan (L.) Druce) foram preparados com o objetivo de ...
Cícero Monti Teixeira   +2 more
doaj   +2 more sources

Germination constraints of dicarpic cypselae of Bidens pilosa L. [PDF]

open access: yesBrazilian Journal of Biology, 2018
Bidens pilosa L. is a heterocarpic weed species with two cypselae types that present morpho-physiological differences, being the peripheral type smaller and slower to germinate than the central one. We aimed to verify how the germination mechanism varied
P. R. M. Souza-Filho, M. Takaki
doaj   +6 more sources

Contribución al conocimiento de la Papunga, Bidens pilosa L.

open access: yesActa Agronómica, 1989
Se realizó un estudio preliminar del hábitat natural de Bidens pilosa L. y de la asociación con micorrizas e insectos. Se evaluó el efecto de la luz, la longitud de los aquenios y el tiempo de almacenamiento sobre la germinación.
Bastidas P. Pedro Iván   +2 more
doaj   +2 more sources

Bidens pilosa L. Y Bidens odorata Cav. (Asteraceae: Heliantheae) en la vegetación urbana de la Ciudad de México

open access: yesActa Botanica Mexicana, 1995
Bidens pilosa L., no citada en trabajos florísticos recientes, es un miembro común de la flora ruderal urbana en el Valle de México. Se discute su ecología, comparándola con la de Bidens odorata Cav.
Heike Vibrans
doaj   +3 more sources

Alguns efeitos do fluometuron sobre o crescimento inicial de Bidens pilosa L. Some effects of fluometuron on early growth of Bidens pilosa L.

open access: yesPlanta Daninha, 1979
Sementes de picão-preto (Bidens pilosa L.) foram germinadas em placas de petri sobre papel de filtro molhado com diferentes concentrações de fluometuron (0, 5, 25, 125 e 625 ppm).
G. de Marinis   +3 more
doaj   +1 more source

Bidens L. (Coreopsideae, Asteraceae), a new generic record for Abu Dhabi, United Arab Emirates [PDF]

open access: yesCheck List, 2021
We report a collection of Bidens pilosa L. from an urban habitat in Abu Dhabi. This represents a new generic record of Bidens L. for the emirate. The species has most likely been accidentally introduced and has the potential to affect the native flora ...
Sabitha Sakkir   +3 more
doaj   +3 more sources

Physiological screening of ruderal weed biomonitors of atmospheric nitrogen deposition

open access: yesBotan‪ical Sciences, 2021
Background: Plants take up various species of reactive nitrogen and their different physiological responses to the increase of nitrogen availability can be useful in biomonitoring. Questions: Does atmospheric nitrogen deposition affect the physiology
D. Nayeli Martínez, Erick de la Barrera
doaj   +1 more source

Atividade antifúngica de Bidens pilosa L. [PDF]

open access: yesRevista Brasileira de Farmacognosia, 1986
The authors observed the Bidens pilosa L. antifungic activity which was collected from Sao Paulo city. Alcoholic extracts of fresh green plants were prepared for testing. Discs paper were impregnated by the alcoholic concentrate. The antifungic activity was tested in Sabourand dextrose agar in petri dishes against 47 strains of fungi.
Minami, Paulo Suyoshi   +1 more
openaire   +3 more sources

Bidens pilosa L.: BOTANI, MANFAAT DAN BIOAKTIVITASNYA

open access: yesPro-Life, 2021
Bidens pilosa belonging Asteraceae has been long used by humans as food and traditional medicine. This study aims to explain the relationship between utilization and bioactivity of B. pilosa. The method writing this article is a literature study of the benefits and bioactivity of B. pilosa which is published online on google scholar.
Marina Silalahi   +2 more
openaire   +1 more source

Silver nanoparticles intensify the allelopathic intensity of four invasive plant species in the Asteraceae [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2022
This study aimed to estimate the allelopathic intensity of four Asteraceae invasive plant species (IPS), including Conyza canadensis (L.) Cronq., Erigeron annuus (L.) Pers., Bidens pilosa (L.), and Aster subulatus Michx., by testing the effect of leaf ...
YOULI YU   +4 more
doaj   +1 more source

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