Results 61 to 70 of about 28,667 (253)

Daily variations of water use with vapor pressure deficit in a plantation of I214 poplars. [PDF]

, 2009
Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the mean tree water use
Etienne Muller, Hogg, Lambs, Luc Lambs, McQueen, Stettler   +5 more
core   +4 more sources

Diurnal Variations in Photochemical Energy Utilization and Osmotic Adjustments in Black Poplar Leaves Under Progressive Water Stress

Plant, Cell &Environment, EarlyView.
ABSTRACT Drought limits the productivity of fast‐growing woody crops, although the metabolic adjustments conferring water stress tolerance remain poorly understood. We investigated the responses of Populus nigra seedlings to water stress by integrating daily physiological measurements and NMR metabolomic analyses.
Antonella Gori, Mauro Centritto, Anatoly P. Sobolev, Giovanni Marino, Francesco Loreto, Francesca Alderotti, Cecilia Brunetti   +6 more
wiley   +1 more source

Clonal mixing in the soldier-producing aphid Pemphigus spyrothecae (Hemiptera: Aphididae) [PDF]

, 2002
Illuminating the genetic relationships within soldier-producing aphid colonies is an essential element of any attempt to explain the evolution of the altruistic soldier caste.
Amos, J A Whitfield, P C D Johnson, W, W A Foster   +4 more
core   +2 more sources

Macronutrient composition in pollen affects development and survival in wild bees

Physiological Entomology, EarlyView.
Small carpenter bees (Ceratina calcarata) were reared on diets formulated with black poplar and dandelion pollen, while closely monitoring developmental metrics, lipid content and survival. Macronutrient analyses on both pollen types revealed dandelion pollen contained lower levels of protein, essential amino acids and several fatty acids, which ...
Khara W. Stephen, Sandra M. Rehan
wiley   +1 more source

Morphological identification of Populus nigra × P. laurifolia natural hybrids in the flood-plain of Tom’ river [PDF]

Сибирский лесной журнал, 2016
A comparative analysis of variability of morphological characteristics of Populus nigra L., Populus laurifolia Ledeb. (Salicaceae) and their natural hybrids in the flood-plain of Tom’ river (Kemerovo Oblast) revealed traits for identification of the ...
A. V. Klimov, B. V. Proshkin
doaj   +1 more source

Influence of temperature and light on the development of moth larvae: Different response in the sister species Orthosia gothica and Orthosia cerasi

Physiological Entomology, EarlyView.
Experimental rearing of Orthosia gothica and Orthosia cerasi larvae under four controlled climate‐chamber treatments (15°C vs. 20°C; 24h darkness vs.12h light/12h dark) to isolate temperature and light effects on development. Repeated measurements of larval body size, biomass and pupation timing to quantify how growth rates and developmental duration ...
Franka Reinhard, Soumen Mallick, Oliver Mitesser, Jörg Müller, Ruth Pickert   +4 more
wiley   +1 more source

Growth characteristics of 5 black poplar (Populus nigra) clones with Turkish origin in Karadj area [PDF]

تحقیقات جنگل و صنوبر ایران, 2011
In this study, wood yield of five poplar clones with Turkish origin were investigated in Karadj. Seventy five young trees (one year old seedling) from each clone were planted in a randomized complete block design on March 1996 in Alborz Research Center ...
Ra'tollah Ghasemi, Ali Reza Modir Rahmati, Farhad Asadi   +2 more
doaj   +1 more source

High levels of gene flow and genetic diversity in Irish populations of Salix caprea L. inferred from chloroplast and nuclear SSR markers [PDF]

, 2014
peer-reviewedBackground Salix caprea is a cold-tolerant pioneer species that is ecologically important in Europe and western and central Asia.
Douglas, Gerry C., Hodkinson, Trevor R, Kelleher, Colin T, Perdereau, Aude C   +3 more
core   +1 more source

Comparative 1H NMR Metabolomics Between Scandinavian Propolis and Australian Propolis: The Quest to Identify Radical Scavenging Compounds

Magnetic Resonance in Chemistry, Volume 64, Issue 4, Page 438-450, April 2026.
Propolis from Scandinavia and Australia was chemically characterized using 1H NMR spectroscopy and multivariate modeling. Recursive partial least squares revealed spectral features associated with radical scavenging activity, and STOCSY enabled identification of the key phenolic compounds underlying these bioactive features. ABSTRACT Propolis from Apis
Jonas Vind, Søren Balling Engelsen, Henrik Munch Jørgensen, Julie Christine Antvorskov, Knud Josefsen, Violetta Aru   +5 more
wiley   +1 more source

Plastome Sequences Help to Resolve Deep-Level Relationships of Populus in the Family Salicaceae

Frontiers in Plant Science, 2019
Populus, a core genus of Salicaceae, plays a significant ecological role as a source of pioneer species in boreal forests. However, interspecific hybridization and high levels of morphological variation among poplars have resulted in great difficulty in ...
Dan Zong, Dan Zong, Peihua Gan, Peihua Gan, Anpei Zhou, Anpei Zhou, Yao Zhang, Yao Zhang, Xinlian Zou, Xinlian Zou, Anan Duan, Anan Duan, Anan Duan, Yu Song, Yu Song, Chengzhong He, Chengzhong He, Chengzhong He   +17 more
doaj   +1 more source