Results 81 to 90 of about 76,205 (168)

La producción hortícola con base agroecológica, ¿un nicho socio técnico en expansión? [PDF]

El objetivo de este trabajo fue describir la evolución y situación actual del nicho socio técnico que promueve la producción agroecológica, analizando dos casos.
Villegas Nigra, Héctor Mario, Jouglard, Luis Emilio   +1 more
core  

Survival and growth responses of Populus nigra, Salix elaeagnos and Alnus incana cuttings to varying levels of hydric stress

, 2005
The Salicaceae and Betulaceae are important plant families within riparian ecosystems throughout the Northern hemisphere, and cuttings of species within these families are often used in riparian restoration projects due to their capacity for vegetative ...
Francis, R.A., Petts, G.E., Gurnell, A.M., Edwards, P.J.   +3 more
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Cadena de valor de la actividad ovina en el Valle Inferior del Río Negro [PDF]

Este trabajo tuvo como objetivo comprender el funcionamiento de la cadena de valor del ovino en el VIRN, describiendo su historia, contexto, características productivas y de mercados, además identificar las principales fortalezas, oportunidades ...
Villegas Nigra, Héctor Mario, Viretto, Pablo, Antenao, Juan, Cariac, Germán   +3 more
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Paternity analysis of Populus nigra L. offspring in a Belgian plantation of native and exotic poplars

, 2006
Gene flow from cultivated poplar plantations into wild populations of Populus nigra L. is considered to represent a potential threat to the survival of P. nigra. In this study we investigated if pollen competition of Populus nigra L.
Vanden Broeck, An, An Vanden Broeck, Peter Breyne, Jos Van Slycken, Paul Quataert, Cottrell, Joan, Quataert, Paul, Van Slycken, Jos, Véronique Storme, Storme, Veronique, Joan Cottrell, Boerjan, Wout, Brreyne, Peter, Wout Boerjan   +13 more
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USVAJANJE I DISTRIBUCIJA METALA U BILJNIM VRSTAMA POPULUS NIGRA I POPULUS TREMULA

, 2018
Woody plants are increasingly used in the remediation of contaminated land. The content of metals (Mn, Fe, Cu, Zn, Cr, Ca, Mg) was analyzed in the plant species Populus nigra L. and Populus tremula L. and in the soil on which they grow.
Simić, Zoran, Timotijević, Siniša, Đelić, Gorica   +2 more
core   +1 more source

The physiological, transcriptional and genetic responses of an ozone-sensitive and an ozone tolerant poplar and selected extremes of their F2 progeny [PDF]

, 2011
Relatively little is known about the transcriptional response or genetic control of response and adaptation of trees to tropospheric ozone exposure.
Tallis, M.J., Mikael, Brosche, Broadmeadow, M., Nathaniel Robert Street, Brosche, M., Tallis Matthew James, Taylor, G., Kangasjarvi, J., Broadmeadow Mark, Tallis, Matthew, Broadmeadow, Mark, Street, N., Tucker, J., Jaakko, Kangasjarvi, Tucker James, Gail Taylor, Kangasjärvi Jaakko, Brosché Mikael, Street, Nathaniel R., Taylor, Gail, Tucker, James   +20 more
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Elimination trial of 10 Poplar clones (Populus nigra) in Kermanshah province [PDF]

تحقیقات جنگل و صنوبر ایران, 2006
In order to select and introduce the promissing clones of Populus nigra, 10 clones were planted 3*3 m in two research stations (Mehregan and Eslamabad) of Kermanshah province.
Fathali Noori, Alireza Modirrahmati, Ahmad Hemmati   +2 more
doaj  

Root proteome response to growth on tannery waste in three different poplar species with various adaptation abilities

E3S Web of Conferences, 2013
In our study we compared growth of three poplar clones (Populus tremula ×alba, P. alba ‘Villafranca” and P. nigra) on chromium-containing solid tannery waste. Tolerance index of saplings ranged from only 25% for P. nigra up to 80% for P.
Zemleduch-Barylska A., Lorenc-Plucińska G.   +1 more
doaj   +1 more source

El rol de las cooperativas en las cadenas agropecuarias de valor en la Provincia de Río Negro [PDF]

El objetivo de este trabajo es describir el papel que desempeñan las cooperativas en las diferentes cadenas agropecuarias de valor que se encuentran en la Provincia de Río Negro.
Miñón, Daniel Jorge, Villegas Nigra, Héctor Mario, López, Miriam, Jocano, Guillermo Luis   +3 more
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Future atmospheric CO2 leads to delayed autumnal senescence

, 2007
Growing seasons are getting longer, a phenomenon partially explained by increasing global temperatures. Recent reports suggest that a strong correlation exists between warming and advances in spring phenology but that a weaker correlation is evident ...
BIRGIT GIELEN, KATRE KETS, Scarascia-Mugnozza, Giuseppe E., GIUSEPPE E. SCARASCIA-MUGNOZZA, MATTHEW J. TALLIS, Gielen, Birgit, Percy, Kevin E., CHRISTIAN P. GIARDINA, Ket, Katre, BENIAMINO GIOLI, Ketss, Katre, Calfaprieta, Carlo, Calfapietra, Carlo, MARK E. KUBISKE, CARLO CALFAPIETRA, Beniamino, Giolis, Gioli, Beniamino, Kubiske, Mark E., DAVID F. KARNOSKY, Migliettas, Franco, FRANCO MIGLIETTA, Scarascia-Mugnozza, Giuseppe, POOJA S. GUPTA, GAIL TAYLOR, Gupta, Pooja S., KEVIN E. PERCY, Karnosky, David F., Miglietta, Franco, Tallis, Matthew J., STEPHEN P. LONG, Gupta, Poojas S., Long, Stephen P., Kets, Katre, Taylor, Gail, Giardina, Christian P.   +34 more
core   +1 more source