Results 21 to 30 of about 4,000 (155)

Leaf senescence of common bean plants as affected by soil phosphorus supply Senescência foliar do feijoeiro afetada pelo suprimento de fósforo no solo

open access: yesRevista Brasileira de Ciência do Solo, 2007
Responses of leaf senescence to P supply could constitute adaptive mechanisms for plant growth under P-limiting conditions. The aim of this study was to evaluate the effects of soil P supply on leaf senescence of common bean (Phaseolus vulgaris L ...
Adelson Paulo Araújo   +2 more
doaj   +1 more source

Folhas verdes, folhas secas, fibra do colmo e a clarificação do caldo de cana-de-açúcar Green leaves, dry leaves, stalk fiber and the clarification of sugarcane juice

open access: yesScientia Agricola, 2001
A presença de impurezas vegetais, como folhas verdes e secas, nos carregamentos de cana-de-açúcar entregues nas usinas de açúcar, tem preocupado os técnicos não somente por se tratar de um material sem qualquer valor tecnológico para processamento, como ...
Roberto Bovi, Gil Eduardo Serra
doaj   +1 more source

A Folha

open access: yesDas Questões, 2015
...tradução de Eclair Filho.
openaire   +3 more sources

Complex multitrophic species interactions and fitness costs: Intricate consequences of jasmonate and salicylate induced plant defences

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals how long‐term activation of jasmonic and salicylic acid signalling reshapes arthropod communities and plant fitness across seasons. By showing that induced defences generate contrasting outcomes and cascading trade‐offs across trophic levels, it challenges the assumption that induced resistance is uniformly beneficial in natural ...
Mônica F. Kersch‐Becker   +6 more
wiley   +1 more source

Características morfogênicas e estruturais do capim-tifton 85 sob doses de nitrogênio e alturas de corte Morphogenic and structural characteristics of tifton 85 bermudagrass under different nitrogen doses and harvesting heights

open access: yesRevista Brasileira de Zootecnia, 2011
Objetivou-se avaliar características morfogênicas e estruturais do capim-tifton 85 adubado com nitrogênio nas doses de 0, 33, 66, 100 ou 133 kg/ha.ano em três alturas à data de corte (30, 40 ou 50 cm).
Odilon Gomes Pereira   +5 more
doaj   +1 more source

Spectral response of guava leaves under infestation by Costalimaita ferruginea (coleoptera: Chrysomelidae)

open access: yesAgricultural and Forest Entomology, EarlyView.
Coccinellidae (Coleoptera), Miridae (Hemiptera), Hemerobiidae (Neuroptera), Pentatomidae (Hemiptera), Anystidae (Acari), Erythraeidae (Acari) and spiders (Araneidae, Oxyopidae and Salticidae) fed on the invasive paropsine leaf beetles in Marlborough, New Zealand.
Souradji I. Bachirou   +2 more
wiley   +1 more source

Influência da localização das fezes nas características morfogênicas e estruturais e no acúmulo de forragem em pastos de capim-braquiária Influence of localization of feces on morphogenetic and structural characteristics and forage accumulation on Brachiaria decumbens pastures

open access: yesRevista Brasileira de Zootecnia, 2011
Objetivou-se avaliar as características morfogênicas e estruturais e o acúmulo de forragem em pastos de Brachiaria decumbens (capim-braquiária) de acordo com a localização das fezes de bovinos.
Manoel Eduardo Rozalino Santos   +5 more
doaj   +1 more source

State Integration and Violence at the Margins: The Logic of Police Raids in Rio de Janeiro's Favelas

open access: yesThe Howard Journal of Crime and Justice, Volume 65, Issue 2, Page 127-141, June 2026.
ABSTRACT This paper investigates police raids in Rio de Janeiro's favelas through a property rights framework, exploring their organisational structure, motivations and implications. Using data from police reports, academic studies, NGOs and news sources, it examines why and how the state intervenes in these contested spaces.
Joseph Bouchard
wiley   +1 more source

Critical Discourse Analysis in Corporate Reports: Legitimation Strategies in the Context of Environmental Controversies

open access: yesCorporate Social Responsibility and Environmental Management, Volume 33, Issue 3, Page 3563-3581, May 2026.
ABSTRACT This study examines the use of environmental disclosure as a strategic tool to manage legitimacy crises in a mining company, adopting critical discourse analysis (CDA) as the main methodology. Focusing on a case of environmental disaster, this research reveals how corporate narratives can be manipulated to minimize responsibility and reinforce
Renata Luiza de Castilho Rossoni   +1 more
wiley   +1 more source

Microhabitat Variation in Feeding Places Shape Ant‐Hemiptera Interactions Within Cocoa Agroecosystems

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
Ant‐hemipteran mutualistic networks in cocoa crops maintain a stable structural organization across different microhabitats (flowers, leaves, and fruits) and management types. This stability is not intrinsic to the network, but rather an emergent result of the behavior of a few generalist ant species acting as structural buffers.
Elmo B. A. Koch   +5 more
wiley   +1 more source

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