Results 81 to 90 of about 13,880 (240)

Portulaca abscondita (Portulacaceae, Caryophyllales), a new microendemic species from Monte Azul, Minas Gerais, Brazil

Nordic Journal of Botany, EarlyView.
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin, Renato Ramos, Jefferson Prado, Angélica Quintanar Castillo, Maria Guadalupe Carvalho Fernandes, Daniela Boanares, José Roberto Ferraz, Thaíla Vieira Alves dos Santos   +7 more
wiley   +1 more source

Influence of paratypical factors on productive qualities of Holstein cows

IOP Conference Series: Earth and Environmental Science, 2019
Abstract The problems of adaptation of a highly productive Holstein breed to new natural and climatic conditions and using their productive qualities are relevant. In order to study the influence of paratypical factors on the productive characteristics of Holstein cows, productive qualities of Holstein cows and their paternal half ...
T T Tarchokov, Z M Aisanov, S F Sukhanova, M G Tleinsheva, A A Mishhozhev, D S Balpanov   +5 more
openaire   +1 more source

Sinningia pampeana sp. nov. (Gesneriaceae) from the Pampa's rocky outcrops in southern Brazil and Uruguay

Nordic Journal of Botany, EarlyView.
Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira, Daniel Alves Spiazzi, Pedro Henrique Sonsim Barbieri, Alain Chautems, Andréa Onofre Araújo   +4 more
wiley   +1 more source

Two new species of Calea ser. Multiplinerviae (Asteraceae: Neurolaeneae) from Brazil

Nordic Journal of Botany, EarlyView.
Detailed studies of specimens from Rondônia and Mato Grosso do Sul showed that two new species have been misidentified: Calea micropappa resembles Calea pilosa, but differs by leaf apex obtuse to acuminate (versus acute), paleae present (versus paleae absent), disc corolla lobes 1.2–1.3 mm long (versus 0.7–0.8 mm), and pappus scales 0.1–0.25 mm long ...
Vinícius Resende Bueno, Maria Luiza Campos Almeida, Jimi Naoki Nakajima   +2 more
wiley   +1 more source

An annotated catalogue of type specimens of the land snail genus Cyclophorus Monfort, 1810 (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London

ZooKeys, 2014
The collection of land caenogastropod snails in the genus Cyclophorus Monfort, 1810 housed in the Natural History Museum, London (NHM), includes 52 type lots.
Nattawadee Nantarat, Chirasak Sutcharit, Piyoros Tongkerd, Jonathan Ablett, Fred Naggs, Somsak Panha   +5 more
doaj   +1 more source

A new species and a synonym in Centaurea sect. Microlophus (Asteraceae, Cardueae–Centaureinae) from the Khuzestan Province, southwestern Iran

Nordic Journal of Botany, EarlyView.
A new species, Centaurea baghmalekensis Negaresh (Asteraceae) in C. sect. Microlophus (Cass.) DC., is described and illustrated from the Khuzestan Province, southwestern Iran. The new species is morphologically most similar to Centaurea pabotii Wagenitz, a recently described species from the Khuzestan Province.
Kazem Negaresh
wiley   +1 more source

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

Nordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz, Bárbara Pinheiro Moreira, João Marcelo Alvarenga Braga, Leonardo Paz Deble   +3 more
wiley   +1 more source

Revisão dos Parátipos de cinco espécies de opalinídeos do Brasil, depositados na "Smithsonian institution ", nos Estados Unidos (Sarcomastigophora, Opalinata)

Memorias do Instituto Oswaldo Cruz, 1966
In the present paper five paratype specimens of the Metcalf Collection of Opalinids at the Smithsonian Institution, U. S. National Museum. U.S.A, are studied and figured in detail: Zelleriella uruguayensis quadrata Metcalf, 1940, Z.
A. Amaro
doaj   +1 more source

Genotypical and paratypical determinants of vitality and productivity of pigs

Veterinary Science, Technologies of Animal Husbandry and Nature Management
The work shows the results of crossing sows of the Big White breed with local breeder boars, which were created by combining the Big White, Landrace and Durok breeds. The effect of heterosis on the reproductive properties of sows under crossbreeding conditions, as well as the growth, development and fattening characteristics of crossbred piglets of ...
O. D. Tkachuk, D. I. Baranovskyi, M. I. Korenev   +2 more
openaire   +1 more source

Target‐site mutations and phenotypic failure in Myzus persicae against pyrethroids and carbamates in central Europe

Pest Management Science, EarlyView.
Molecular screening of 140 field‐collected Myzus persicae aphids revealed target‐site mutations L1014F, M918L, M918T, and L932F in the sodium channel and S431F in Ace2. The M918L mutation was the primary driver of high pyrethroid (cypermethrin) resistance, while S431F served as a definitive marker for carbamate (pirimicarb) resistance.
Jitka Stara, Jan Hubert, Pavla Pabiskova, Frantisek Kocourek   +3 more
wiley   +1 more source