Results 51 to 60 of about 8,410 (218)

Response of Acer saccharum seedlings to elevated O3 and CO2 concentrations [PDF]

, 2005
The effects of three times ambient [O3] (3x) and high [CO2] (650 µL L-1 CO2) alone and in combination were studied on 2-yr-old sugar maple (Acer saccharum) seedlings for 86 days in open top chambers.
Chevrier, Normand, Dizengremel, Pierre, Gaucher, Catherine, Mauffette, Yves   +3 more
core   +1 more source

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

Pest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks, Tom W. Pope, Simon Cooper, Joe M. Roberts   +3 more
wiley   +1 more source

Seedling resistance and chemical defenses against Psylliodes chrysocephala: the roles of seed age and sinapinic acid in Sinapis alba and Brassica napus

Pest Management Science, EarlyView.
The cabbage stem flea beetle (Psylliodes chrysocephala) is a major pest of winter oilseed rape (Brassica napus). We tested B. napus and Sinapis alba seedlings for feeding resistance and underlying chemical defenses. S. alba was least damaged, while metabolite profiles revealed resistance‐linked compounds, highlighting breeding potential for insect ...
Daniel Rüde, Samantha M Cook, Bernd Ulber, Tobias Pöhnl, Michael Rostás   +4 more
wiley   +1 more source

Evaluating the efficacy of tagging adhesives for insect tracking

Agricultural and Forest Entomology, EarlyView.
Two‐part epoxy resin delivered the strongest RFID tag adhesion on carabid beetles, exceeding polyvinyl acetate, cosmetic latex and cyanoacrylate adhesives. Adhesive performance was consistent across Harpalus, Leistus and Poecilus; species effects were non‐significant, supporting a broadly applicable protocol for carabid RFID tagging studies.
Leona C. R. Breen, Joe M. Roberts, Tom W. Pope   +2 more
wiley   +1 more source

Plasticity of the Cuticular Transpiration Barrier in Response to Water Shortage and Resupply in Camellia sinensis: A Role of Cuticular Waxes

Frontiers in Plant Science, 2021
The cuticle is regarded as a non-living tissue; it remains unknown whether the cuticle could be reversibly modified and what are the potential mechanisms.
Yi Zhang, Yi Zhang, Zhenghua Du, Yanting Han, Xiaobing Chen, Xiangrui Kong, Weijiang Sun, Changsong Chen, Mingjie Chen   +8 more
doaj   +1 more source

A morpho-physiological approach differentiates bread wheat cultivars of contrasting tolerance under cyclic water stress [PDF]

, 2014
Leaf micromorphological traits and some physiological parameters with potential relevance to drought tolerance mechanisms were investigated in four selected winter wheat varieties.
Barnabás, Beáta, Deák, Csilla, Eitel, Gabriella, Fábián, Attila, Jäger, Katalin, Papp, István, Szabó, László   +6 more
core   +1 more source

Ultrastructure of Epicuticular Wax in Canola

Zeitschrift für Naturforschung C, 1989
Ultrastructure of the epicuticular wax of four commercially grown Canadian cultivars of canola (Brassica campestris cvs. Tobin and Candle, B. napus cvs. Altex and Westar) was investigated. Freeze-drying and air-drying methods of specimen preparation for scanning electron microscopy were compared.
K. L. Conn, J. P. Tewari
openaire   +1 more source

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

Archaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay, Peter M. J. Douglas, Christina T. Halperin, Yves Gélinas   +3 more
wiley   +1 more source

Efficacy of Zeolite and Kaolin in the Control of Cacopsylla pyri (L.) (Hemiptera: Psyllidae) and Compatibility With Its Natural Antagonist Anthocoris nemoralis (Fabricius) (Hemiptera: Anthocoridae)

Journal of Applied Entomology, EarlyView.
ABSTRACT The pear psyllid Cacopsylla pyri is a major pest of European pear orchards, responsible for significant yield losses. Its management is increasingly challenged by restrictions on synthetic active ingredients, resistance development, and the shift towards sustainable production systems.
Laura Depalo, Giovanni Biscontin, Antonio Russo, Elisa Marchetti   +3 more
wiley   +1 more source

Effect of Sodium Carbonate Pretreatment on Drying Characteristics and Cuticular Wax of Lycium barbarum L. [PDF]

Shipin Kexue
In this study, scanning electron microscopy (SEM) and gas chromatography-mass spectrometry (GC-MS) were employed to investigate the effects of Na2CO3 pretreatment on the drying time, cuticular wax micromorphology and wax composition of mature goji ...
LI Zhigang, LIU Zhanfei, ZHENG Guoqi, YANG Juan, ZHU Jinzhong
doaj   +1 more source