Results 101 to 110 of about 3,825 (215)

TAXONOMICAL IMPLICATIONS OF NATURAL COMPONENTS IN DELIMITATION OF SOME SPECIES OF ASTERACEAE FAMILY IN BAGHDAD

The Iraqi Journal of Agricultural science
  This study aimed to investigate the taxonomical relationship among eight species belonging to Asteraceae based on natural products as fresh leaves of eight species (Carthamus tinctorius L., Centaurea iberica Trevir.
Rasha A. Al- Souz, H. R. H. Al-Newani
doaj   +1 more source

The effects of soil fumigation on the growth and mineral nutrition of weeds and crops=Efeito da fumigação do solo no crescimento e nutrição mineral de plantas daninhas e culturas [PDF]

Acta Scientiarum. Agronomy, 2012
Weeds and soil microorganisms interact with each other in the soil/root interface, promoting the development and establishment of both. The objective of this study was to evaluate the growth and nutrient accumulation in eight species of weeds (Ageratum ...
Marliane de Cássia Soares da Silva, José Barbosa dos Santos, Mauricio Dutra Costa, Lino Roberto Ferreira, Edson Aparecido dos Santos, Ignacio Aspiazu   +5 more
doaj   +1 more source

Antiproliferative Constituents of the Roots ofConyza canadensis [PDF]

Planta Medica, 2011
Bioassay-guided fractionation of the N-hexane and CHCl₃ phases of the methanol extract of the roots of Conyza canadensis (L.) Cronquist led to the isolation of two new dihydropyranones named conyzapyranone A (1) and B (2), and the known 4 Z,8 Z-matricaria- γ-lactone (3), 4 E,8 Z-matricaria- γ-lactone (4), 9,12,13-trihydroxy-10(E)-octadecenoic acid (5),
Csupor-Löffler Boglárka, Hajdú Zsuzsanna, Zupkó István, Molnár Judit, Forgó Péter, Vasas Andrea, Kele Zoltán, Hohmann Judit   +7 more
openaire   +3 more sources

Convergent Post‐Drought Recovery of Biomass and Functional Traits Under Constant and Periodic Warming in Slow‐ and Fast‐Growing Plants

Global Change Biology Communications, Volume 1, Issue 2, June 2026.
In a 2‐year outdoor mesocosm experiment, slow‐ and fast‐growing grassland plants exhibit biomass‐trait decoupling 1 month after drought, particularly under warmed conditions. This decoupling disappears 4 months after drought by the end of the growing season.
Nicolò Tartini, Ludovico Formenti, Yu Sun, Lauriane Bégué, Caroline Daniel, Itzel Lopez‐Montoya, Gerard Martínez‐De León, Nicholas O. E. Ofiti, Hang Zhao, Madhav P. Thakur   +9 more
wiley   +1 more source

Germinação das sementes de Conyza canadensis e Conyza bonariensis em função da disponibilidade hídrica no substrato Germination of Conyza canadensis and Conyza bonariensis seeds in function of water availability in the substrate

Planta Daninha, 2010
Recentes relatos apresentam Conyza canadensis e C. bonariensis como importantes espécies daninhas do sistema agrícola. A grande adaptabilidade ecológica dessas espécies a sistemas conservacionistas de manejo de solo e o aumento da pressão de seleção ...
O.M. Yamashita, S.C. Guimarães
doaj   +1 more source

Henry Trimen: Under‐appreciated pioneer in the typification of Linnaean plant names?

TAXON, Volume 75, Issue 3, June 2026.
Abstract In 1887, Henry Trimen published a paper summarising the contents of the Hermann Herbarium, in what is now the Natural History Museum, London (BM), in terms of the plant names published by Linnaeus. Trimen referred to the Hermann specimens as types of Linnaeus's names.
I.M. Turner
wiley   +1 more source

Managing glyphosate-resistant weeds with cover crop associated with herbicide rotation and mixture

Ciência e Agrotecnologia
Herbicide resistance has become a major concern for agricultural systems, and integrating weed management practices seem to be the most promise way for its mitigation.
Aroldo Marochi, Antonio Ferreira, Hudson Kagueyama Takano, Rubem Silvério Oliveira Junior, Ramiro Fernando Lopez Ovejero   +4 more
doaj   +1 more source

Diverse soil seedbanks are resilient to reintroducing low‐intensity fire in a subtropical grassy woodland

Journal of Applied Ecology, Volume 63, Issue 5, May 2026.
Seedbanks in this grassy woodland provide a rich biodiversity reservoir which persisted after low‐intensity fire. Patterns of species replacement suggest that activities which diminish above‐ground plant diversity (such as overgrazing or conversion to forest) will impact biodiversity at larger spatial scales, while soil seedbanks are likely more robust
Caitlin Gaskell, Shane D. Campbell, Danyel Wolff, Gabrielle Lebbink, Annabel L. Smith   +4 more
wiley   +1 more source

Desmella conyzae

, 2017
Desmella conyzae (Frauenfeld, 1857) Trypeta conyzae Frauenfeld, 1857: 555. Egypt (Cairo: Esbekieh). Syntypes (NHMW). Distribution. PA: Egypt. Egyptian localities. Coastal Strip: Abu Mena. Lower Nile Valley & Delta: Cairo, Koubba, Maadi, Mansouria. Host plants. Horseweed (Conyza aegyptiaca (L.) Aiton). Source: Efflatoun (1924a).
openaire   +2 more sources

Natural variation in planting‐year climate explains variation in developing floristic composition of restored prairie

Journal of Applied Ecology, Volume 63, Issue 5, May 2026.
This study demonstrates planting‐year climate can predict the cover of frequently occurring species and major compositional groups in prairie developing from seed. Our results advance understanding of factors contributing to variable restoration outcomes, which is needed to achieve conservation goals.
Zachary Storc, Kathryn D. Eckhoff, Daniel C. Reuman, Sara G. Baer   +3 more
wiley   +1 more source