Results 281 to 290 of about 128,379 (343)

The effect of climate change on the richness distribution pattern of oaks (Quercus L.) in China.

Science of the Total Environment, 2020
Increased concentration of greenhouse gases in the air is acknowledged as one of the main reason for observed global climatic change. This phenomenon significantly affects the species geographical distribution, and changes their richness distribution ...
Shuxia Sun, Yang Zhang, Dizhou Huang, Hui Wang, Q. Cao, Peixian Fan, Ning Yang, P. Zheng, Renqing Wang   +8 more
semanticscholar   +1 more source

Characteriztion of Quercus persica, Quercus infectoria and Quercus libani as ruminant feeds

Animal Feed Science and Technology, 2008
Abstract The nutritive value of three species of oak trees leaves was assessed by chemical analysis as well as by an in situ and in vitro gas production method. The chemical composition (g/kg DM basis) of three species, Quercus persica , Q. infectoria and Q. libani were 951, 927, 946 organic matter (OM); 115, 92, 123 crude protein (CP); 532,
M. Yousef Elahi, Y. Rouzbehan
openaire   +1 more source

Phytochemical composition and variability in Quercus ilex acorn morphotypes as determined by NIRS and MS-based approaches.

Food Chemistry, 2020
Quercus acorns have been used as a staple food since archeological times; currently, there is a renewed interest in the direct use of the acorns as nuts or as a source of consumable flour.
C. López-Hidalgo, M. Trigueros, M. Menéndez, J. Jorrín-Novo   +3 more
semanticscholar   +1 more source

Quercus L.

The silviculture of trees used in British forestry, 2019
This chapter describes the origin and introduction; climatic and site requirements, and other silvicultural characteristics; pests and diseases; natural regeneration; flowering, seed production and nursery conditions; conservation; provenance and ...
P. Savill
semanticscholar   +1 more source

Quercus

2021
no se vería afectado ningún ejemplar del género Quercus .
openaire   +1 more source

Uncovering the genomic signature of ancient introgression between white oak lineages (Quercus).

New Phytologist, 2019
Botanists have long recognised interspecific gene flow as a common occurrence within white oaks (Quercus section Quercus). Historical allele exchange, however, has not been fully characterised and the complex genomic signals resulting from the ...
A. Crowl, Paul S. Manos, John D. McVay, A. Lemmon, E. Lemmon, A. Hipp   +5 more
semanticscholar   +1 more source

Bioactive metabolites involved in the antioxidant, anticancer and anticalpain activities of Ficus carica L., Ceratonia siliqua L. and Quercus ilex L. extracts

Industrial crops and products (Print), 2017
Ficus carica L., Ceratonia siliqua L. and Quercus ilex L. are natural products that are used as an advantageous rich source of bioactive compounds of high economic value because of its use in cosmetic, pharmaceutical and agriculture industries.
N. Amessis-Ouchemoukh, S. Ouchemoukh, Nassima Meziant, Yamina Idiri, D. Hernanz, C. Stinco, F. J. Rodríguez-Pulido, F. Heredia, Khodir Madani, J. Luís   +9 more
semanticscholar   +1 more source

Cultivar Checklist of Quercus (Excluding Subg. Quercus)

Arboriculture & Urban Forestry, 1987
Cultivars of species in the genus Quercus (excl. subgenus Quercus, the white oaks) are listed and described. Twent-two species and several hybrids of the subgenera Cyclobalanopsis, Corns, Protobalanus, and Erythrobaianus are discussed and determinations made on the validity of cultivar names. The "Darlington" oak is regarded as a colloquial name for Q.
Alice McArdle, Frank Santamour
openaire   +1 more source

Quercus candicans (Fagaceae) is not a Quercus but a Roldana (Asteraceae)

Phytotaxa, 2018
A revision of type material of Quercus candicans at the Herbarium of the Real Jardín Botánico de Madrid (MA), as well as the original description revealed misplacement in the genus Quercus (Fagaceae). The type of Q. candicans clearly corresponds to Roldana lineolata (Asteraceae).
Valencia-A, Susana, Coombes, Allen, Villaseñor, José Luis   +2 more
openaire   +2 more sources

Pharmacology of Quercus infectoria

Journal of Pharmaceutical Sciences, 1976
The galls of Quercus infectoria (Fagaceae), a commonly available plant in Iran, were studied pharmacologically. Two fractions were employed, a dried acetone-treated methanol extract dissolved in water (Fraction A) and a subfraction prepared by chloroform-methanol extraction (Fraction B).
M S, Dar, M, Ikram, T, Fakouhi
openaire   +2 more sources