Results 31 to 40 of about 17,312 (161)

Quels intérêts de la diversité floristique des prairies permanentes pour les ruminants et les produits animaux ?

open access: yesINRAE Productions Animales, 2008
Les prairies permanentes occupent environ un tiers de la surface agricole utile et présentent un grand potentiel de diversité biologique. L’élevage a de ce fait un rôle majeur à jouer dans la préservation de la biodiversité sur le territoire français. L’
A. FARRUGGIA   +6 more
doaj   +1 more source

Allelopathic effect of the Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of germinated seedlings in Allium cepa L. [PDF]

open access: yes, 1999
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively.
Vicente, Carlos   +2 more
core  

Germination responses to light of four Neotropical forest tree species along an elevational gradient in the southern Central Andes [PDF]

open access: yes, 2020
Seed germination is a key part of plants' life cycle and is mostly affected by the genetic background, the environmental conditions experienced by the mother plant and the seedbed conditions.
Caron, Maria Mercedes   +4 more
core   +1 more source

Digitisation of herbarium specimens to the benefit of research: An African perspective focusing on South Africa and Western Indian Ocean Island states

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Botanical exploration, discovery and conservation rely heavily on access to herbarium collections. Recently, digital access to label information, including georeferenced locality data, and images of herbarium specimens available online have greatly increased usage of herbarium specimen data.
Ronell R. Klopper   +9 more
wiley   +1 more source

Ressources tropicales : disponibilité et valeur alimentaire

open access: yesINRAE Productions Animales, 2011
La disponibilité et les facteurs de variation de la valeur alimentaire des ressources végétales tropicales et des sous-produits de l’agro-industrie sont présentés dans cette synthèse.
H. ARCHIMÈDE   +4 more
doaj   +1 more source

Interaction Grammars [PDF]

open access: yes, 2008
Interaction Grammar (IG) is a grammatical formalism based on the notion of polarity. Polarities express the resource sensitivity of natural languages by modelling the distinction between saturated and unsaturated syntactic structures.
Bruno Guillaume   +5 more
core   +8 more sources

Leaf longevity and structure, fruit mass and phenology in 52 cultivated varieties and wild accessions of olive

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Although phenology has long been recognized as a critical feature for the adaptation of organisms to their local environment, until recently, phenological events have seldom been considered in the broader context of trait‐based ecology.
Eric Garnier   +5 more
wiley   +1 more source

La qualité sensorielle des produits laitiers et de la viande dépend des fourrages consommés par les animaux

open access: yesINRAE Productions Animales, 2002
La nature des fourrages ingérés par les ruminants est un des facteurs de variation de la qualité sensorielle des produits laitiers et de la viande.
J.B. COULON , A. PRIOLO
doaj   +1 more source

Belowground DNA-based techniques: untangling the network of plant root interactions [PDF]

open access: yes, 2011
Contains fulltext : 91591.pdf (publisher's version ) (Closed access)7 ...
AJ Dumbrell   +50 more
core   +2 more sources

Spatial overlap and temporal synchrony between guilds of insect hosts and parasitoids

open access: yesJournal of Animal Ecology, EarlyView.
This study identified a spatial overlap between insect host guild richness and parasitoid richness. Species richness in parasitoid guilds always increased later in the season than richness of their host guilds. These findings suggest that shifts in climate and land‐use may alter the synchrony of insect trophic layers.
Laura J. A. van Dijk   +10 more
wiley   +1 more source

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