Results 101 to 110 of about 70,043 (289)
Parakaempferia alba sp. nov. (Zingiberaceae), a new species from Arunachal Pradesh, India
Nordic Journal of Botany, EarlyView.Parakaempferia alba, a new species of Zingiberaceae from East Siang district of Arunachal Pradesh, India is herein described. A detailed taxonomic description, diagnosis, color photoplate, distribution map, notes on habitat and ecology, conservation status, and a table of comparisons with the closely related species Parakaempferai synantha Rao & Verma ...
Tatum Mibang +3 more
wiley +1 more source
A new concept for the control of Elytrigia repens in organic crop production [PDF]
, 2012 The control of perennial weeds in organic crop production needs reconsideration to minimise losses of nutrients through leaching. Long post-harvest periods with mechanical weed control hinder a plant cover with the purpose of taking up nutrients not ...
Fløjgaard, Erik +2 more
core
Sexual reproduction in invasive Japanese knotweed (Reynoutria japonica) in south Sweden
Nordic Journal of Botany, EarlyView.To understand the potential for northward expansion of knotweeds into currently uninvaded regions, it is crucial to assess the potential for sexual reproduction alongside the ongoing vegetative spread. For that reason, we tested viability in Reynoutria japonica seeds in south Sweden, a region where viable seeds had not been previously reported ...
Tina D'Hertefeldt +5 more
wiley +1 more source
Primula himalayana sp. nov., a new species from eastern Himalaya, India
Nordic Journal of Botany, EarlyView.Primula himalayana sp. nov., a new species of Primulaceae, is described and illustrated from Tawang, Lutrem, 4238 m a.s.l., Arunachal Pradesh, India. It grows under Juniperus and Berberis scrub forest in an alpine meadow. The new species belong in Primula section Cordifoliae and is resembling P.
Bipankar Hajong +2 more
wiley +1 more source
Effects of fire on composition, biomass, and nutrients in oak scrub vegetation on John F. Kennedy Space Center, Florida [PDF]
Four stands of oak scrub two, four, eight, and 25 years since fire were sampled with permanent 15 m line transects. Percent cover by species was determined. Plant samples were analyzed for a variety of substances.
Hinkle, C. Ross, Schmalzer, Paul A.
core +1 more source
Arisaema siahaense sp. nov. (Araceae) from India
Nordic Journal of Botany, EarlyView.A new species of Arisaema Mart. (Araceae) belonging to sect. Fimbriata is described and illustrated here from the Siaha District, Mizoram, India. This new species is characterized by an evergreen, dioecious herbaceous habit, up to 1.08 m high, having a subglobose tuber, with a solitary trifoliate leaf.
Rabishankar Sengupta +1 more
wiley +1 more source
Plant species first recognised as naturalised for New South Wales in 2002 and 2003, with additional comments on species recognised as naturalised in 2000–2001 [PDF]
, 2013 Information is provided on the taxonomy and distribution of 71 taxa of naturalised or naturalising plants newly recorded for the state of New South Wales during the period 1 January 2002 to 31 December 2003.
Barker, Clive H. +3 more
core
Oikos, EarlyView.Grasslands, by definition, are dominated by graminoids. Nevertheless, forbs also make up a substantial part of vascular plant diversity in grasslands and are important resources of mammalian herbivores. However, forb recruitment is constrained by successful dominant graminoids, limiting access to safe sites for germination.
Gerardo Celis +5 more
wiley +1 more source
Ciência e Agrotecnologia, 2005 O trabalho foi desenvolvido em Dourados-MS, no período de 2/10/2003 a 21/8/2004, em Latossolo Vermelho distroférrico, textura argilosa. O objetivo foi avaliar a capacidade produtiva da araruta 'Comum', utilizando-se três tipos de propágulos.
Néstor Antonio Heredia Zárate +1 more
doaj +1 more source
Strong and weak competitors can coexist in the same niche [PDF]
, 2012 The competitive exclusion principle postulates that two trophically identical but fitness different species can not stably coexist in the same niche. However, this principle contradicts the observed nature's species richness.
Lev V. Kalmykov, Vyacheslav L. Kalmykov
core +2 more sources