Results 21 to 30 of about 95,173 (266)
INDUSTRIAL HEALTH, 1996 LC50 of 2-bromopropane was reexamined by using the OECD guideline in ICR mouse. The mice, 3 males and 3 females, were exposed to 2-bromopropane at five different concentrations for 4 h in inhalation chambers. The exposed animals were observed for 14 days. The animals which had survived and died were counted for the LC50 determination.
H Y, Kim +4 more
openaire +3 more sources
Chemical and biological investigations of Delonix regia (Bojer ex Hook.) Raf. [PDF]
, 2010 U radu je opisana izolacija pet sastojaka petroleterske i diklormetanske frakcije metanolnog ekstrakta kore biljke Delonix regia: lupeol (1), epilupeol (2), β-sitosterol (3), stigmasterol (4) i p-metoksibenzaldehid (5). Nadalje, testirano je antimikrobno
A. Bauer +18 more
core +3 more sources
Jurnal Ilmu Lingkungan, 2018 ABSTRAKPenggunaan insektisida klorpirifos mencapai 99,8% oleh petani di Provinsi Sumatera Barat. Fungsi utama klorpirifos dalam pertanian adalah melindungi tanaman jagung, kapas dan buah-buahan terhadap hama serangga.
Taufiq Ihsan +3 more
semanticscholar +1 more source
Phylogenetic signal in amphibian sensitivity to copper sulfate relative to experimental temperature [PDF]
, 2015 The release of large quantities of chemicals into the environment represents a major source of environmental disturbance. In recent years, the focus of ecotoxicology has shifted from describing the effects of chemical contaminants on individual species ...
Capellini, Isabella +5 more
core +1 more source
Estimation of LC50 and its Confidence Interval for the Effect of Ferrous Sulphate on Catla catla
JOURNAL OF ENVIRONMENTAL MICROBIOLOGY AND TOXICOLOGY, 2018 Probit analysis is generally employed in the studies of toxicology, to determine the concentration of toxicant causing 50% mortality or LC50 value. The response of an organism is generally binomial and is typically sigmoidal in property. The Probit value
M. Halmi, M. Rahim, A. Othman
semanticscholar +1 more source
Toxicity of soursop extracts to diamondback moth
Bioscience Journal, 2017 This study aimed to evaluate the effects of three solvent extractors (water, ethanol and hexane) of grounded seeds of soursop, Annona muricata L. (Annonaceae), in the mortality, biology and oviposition of Plutella xylostella L. (Lepidoptera: Plutellidae).
Roseane Cristina Predes Trindade +3 more
doaj +1 more source
Jurnal HPT (Hama Penyakit Tumbuhan), 2022 Salah satu hama utama yang menyerang dengan intensitas tinggi pada tanaman cabai adalah kutudaun (Aphis gossypii Glover). Bentuk pengendalian hama ini yang sering dilakukan adalah dengan penggunaan insektisida sintetik.
Lindia Rahayu Widia Santi +2 more
doaj +1 more source
Monitoring resistance of Cydia pomonella (L.) Spanish field populations to new chemical insecticides and the mechanisms involved [PDF]
, 2017 BACKGROUND: A widespread resistance of Cydia pomonella to organophosphates was demonstrated in populations from the Spanish Ebro Valley area that showed high levels of enzymatic detoxification.
Avilla Hernández, Jesús +2 more
core +3 more sources
Eucalyptus (Eucalyptus camaldulensis) and chinaberry (Melia azedarach) extracts' potential for sustainable control of root-knot nematode, Meloidogyne javanica [PDF]
Journal of Advances in Plant ProtectionRoot-knot nematode has a widespread distribution and has caused significant damage, as in some cases, led to complete crop loss. Environment-friendly and safe methods are essential for the replacement of chemical nematicides.
Salma sadat Torabi, Azam Zeynadini Riseh
doaj +1 more source
, 2018 The anadromous Tenualosa ilish is the most economically important fish in the world and consequently in Iran. The national fish of Iranian contributes about 12% of the total fish production and about 1% of GDP.
M. Sadeghi
semanticscholar +1 more source