Results 51 to 60 of about 115,133 (198)

Efeito da aplicação de silicato de cálcio em Brachiaria rizantha cv. Marandu sobre a população de ninfas do percevejo castanho das raízes Scaptocoris carvalhoi Becker, 1967, características químicas do solo, planta e produção de matéria seca Application effect of calcium silicate in Brachiaria brizantha cv. Marandu on the nymph population of the brown root stinkbug, soil chemical characteristics, and plant and dry matter production

open access: yesCiência e Agrotecnologia, 2009
Neste trabalho, objetivou-se avaliar o efeito de diferentes doses de silicato de cálcio sobre a população de ninfas de percevejo castanho das raízes em Brachiaria brizantha, nas características químicas do solo, planta e produção de matéria seca.
Elza Amélia de Souza   +5 more
doaj   +1 more source

Aphids associated with shrubs, herbaceous plants and crops in the Maltese Archipelago (Hemiptera, Aphidoidea) [PDF]

open access: yes, 2011
A survey of the aphids associated with Maltese shrubs, herbaceous plants and crops was carried out. Sixty six aphid species were recorded from more than 90 species of host plants.
Azzopardi, Erika   +6 more
core  

Steppes, savannahs, forests and phytodiversity reservoirs during the Pleistocene in the Iberian Peninsula [PDF]

open access: yes, 2010
A palaeobotanical analysis of the Pleistocene floras and vegetation in the Iberian Peninsula shows the existence of patched landscapes with Pinus woodlands, deciduous and mixed forests, parklands (savannah-like), shrublands, steppes and grasslands ...
Agustí   +259 more
core   +2 more sources

Survey of the Heteroptera (Hemiptera) on pastures from Espírito Santo state, Brazil: new records, range extension, and notes of potential pests

open access: yesEntomoBrasilis, 2020
Espírito Santo is a Brazilian state that has a wide variety of habitats, providing a high biological diversity of fauna and flora. However, few reports had been shown about the insect diversity of this region, especially of heteropterans insects that ...
Mayra Vélez   +3 more
doaj   +1 more source

New and Noteworthy Plants of Texas [PDF]

open access: yes, 2010
Rhexia alifanus (Melastomataceae) and Rhynchospora inundatum (Cyperaceae), both previously reported in the state, are documented as part of the flora of the state.
Holmes, Walter C.   +2 more
core   +1 more source

Thinking Outside of the Cereal Box: Breeding Underutilized (Pseudo)Cereals for Improved Human Nutrition. [PDF]

open access: yes, 2019
Cereal grains have historically played a critical role in sustaining the caloric needs of the human population. The major cereal crops, wheat, rice, and maize, are widely cultivated and have been subjected to biofortification to enhance the vitamin and ...
Bekkering, Cody S, Tian, Li
core  

Durrington Walls to West Amesbury by way of Stonehenge: a major transformation of the Holocene landscape [PDF]

open access: yes, 2012
A new sequence of Holocene landscape change has been discovered through an investigation of sediment sequences, palaeosols, pollen and molluscan data discovered during the Stonehenge Riverside Project.
Allen   +54 more
core   +1 more source

Comparison between Poaceae Airborne Pollen Counts and Phl p5 Aeroallergen Quantification in South Europe [PDF]

open access: yes, 2010
The European project HIALINE: Comparison between Poaceae Airborne Pollen Counts and Phl p5 Aeroallergen Quantification in South Europe C. Antunes1,2, R. Ferro2, R. Ribeiro2, Torres M.C.4, M.J. Velasco4H.
Antunes, Celia M.   +7 more
core  

Variation of specific morphological traits and ploidy level of five "aegilops" l. species in Morocco [PDF]

open access: yes, 2003
Variation of specific morphological traits and ploidy level of five Aegilops L. species in Morocco.The genus Aegilops L. represents an important natural source of useful genes for wheat breeding, with particular emphasis on biotic and abiotic stress ...
Assali, Nourredine   +2 more
core   +4 more sources

Pollenanalytical studies in NE-Nigeria: preliminary results from the Manga Grasslands and Lake Tilla, Biu Plateau [PDF]

open access: yes, 1996
Two sites situated in the Sahelian and Sudanian zones of NE-Nigeria were chosen for pollen analysis. A sediment core from an interdunal depression in the eastern Manga Grassland provides information on the Holocene vegetation history of the Sahel between
Salzmann, Ulrich
core  

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