Results 11 to 20 of about 140,480 (206)

Chemical composition of Ilex paraguariensis St. Hil. under different management conditions in seven localities of Paraná State

Brazilian Archives of Biology and Technology, 1999
Ilex paraguariensis St. Hil. (erva-mate), the mate tea, is a forest tree whose natural distribution in the Brazilian territory embraces the States of Mato Grosso do Sul, Paraná, Santa Catarina and Rio Grande do Sul.
Carlos Bruno Reissmann, Maria Izabel Radomski, Ruth Maria Bianchini de Quadros   +2 more
doaj   +1 more source

Grasses and the resource availability hypothesis: the importance of silica-based defences [PDF]

, 2007
The resource availability hypothesis (RAH) predicts that allocation of resources to anti-herbivore defences differs between species according to their growth rate.
Ennos, Roland A., Hartley, Susan, Massey, Fergus P.   +2 more
core   +2 more sources

Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests [PDF]

, 2016
Understanding relations among forest carbon (C) uptake and water use is critical for predicting forest-climate interactions. Although the basic properties of tree-water relations have long been known, our understanding of broader-scale patterns is ...
Anav, Atkin, Badeck, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Baldocchi, Barbour, Barbour, Barbour, Barnard, Beer, Belmecheri, Berry, Betts, Bolster, Bonan, Bonan, Bright, Brugnoli, Buckley, Canadell, Carnicer, Catovsky, Cernusak, Chen, Clark, Craig, Davin, Desai, Dickinson, Dongmann, Donovan, Dore, Evans, Ewers, Farquhar, Farquhar, Farquhar, Farquhar, Farquhar, Federer, Fernández-Martínez, Fernández-Martínez, Flanagan, Flexas, Gessler, Gessler, Grams, Grassi, Guerrieri, Heimann, Jennings, Keenan, Keitel, Kergoat, Kunert, Law, Lee, Leonelli, Lepine, Liang, Loescher, Luyssaert, Lévesque, Magnani, Martin, Martínez-Vilalta, Meinzer, Meir, Michelot, Moffat, Monson, Moreno-Gutiérrez, Niinemets, Niu, Ollinger, Ollinger, Pan, Pan, Papale, Paquette, Ponton, Post, Potter, Powell, Reichstein, Reichstein, Renninger, Richardson, Ripullone, Roden, Roden, Roden, Roman, Sage, Scartazza, Scheidegger, Schulze, Seibt, Siegwolf, Smith, Smith, Song, Sullivan, Tang, Tang, Tardieu, Valentini, Valentini, Wang, Warren, Wehr, Wright, Xiao, Xiao, Xu, Zhang, Zhu   +119 more
core   +3 more sources

Cultivar-Specific Assessments of Almond Nutritional Status through Foliar Analysis

Horticulturae, 2022
Mediterranean almond growing is increasing, as confirmed in Italy where new almond orchards in areas not previously interested in this nut crop have been recently established. In these new areas, as in the coastal of Latium region, the knowledge of eco-physiological behavior as a complex interaction among cultivars, pedoclimate conditions and orchard ...
Aniello Luca Pica, Cristian Silvestri, Valerio Cristofori   +2 more
openaire   +2 more sources

Beach impact study, Padre Island National Seashore [PDF]

, 1976
Prepared for Office of Natural Science, Southwest Region, National Park Service, under contract CX70005044830 April 1976Vegetative differences between heavily and very lightly trafficked beaches show that more beach traffic correlates with quantitative ...
Behrens, E. W. (Earl William), 1935-, Carangelo, Paul D., Finkelstein, H. S.   +2 more
core   +1 more source

Automated Image Analysis of the Severity of Foliar Citrus Canker Symptoms [PDF]

Plant Disease, 2009
Citrus canker (caused by Xanthomonas citri subsp. citri) is a destructive disease, reducing yield and rendering fruit unfit for fresh sale. Accurate assessment of citrus canker severity and other diseases is needed for several purposes, including monitoring epidemics and evaluation of germplasm.
C H, Bock, A Z, Cook, P E, Parker, T R, Gottwald   +3 more
openaire   +2 more sources

Predicting the effects of climate change on water yield and forest production in the northeastern United States [PDF]

, 1995
Rapid and simultaneous changes in temperature, precipitation and the atmospheric concentration of CO2 are predicted to occur over the next century. Simple, well-validated models of ecosystem function are required to predict the effects of these changes ...
Aber, John D, Federer, C. Anthony, Goulden, Michael L, Kicklighter, David W, Lathrop, Richard G Jr, Melillo, Jerry M, Ollinger, Scott V, Reich, Peter B   +7 more
core   +2 more sources

Avaliação do estado nutricional de agroecossistemas de café orgânico no estado de Minas Gerais Nutritional diagnosis of organic coffee agroecosystems in the Minas Gerais state

Ciência e Agrotecnologia, 2003
A produção de café orgânico vem se constituindo uma tendência necessária e irreversível do agronegócio brasileiro. Essa atividade tem-se destacado como uma alternativa de renda para alguns cafeicultores, devido à crescente demanda mundial por alimentos ...
Vanessa Cristina de Almeida Theodoro, Janice Guedes de Carvalho, João Batista Corrêa, Rubens José Guimarães   +3 more
doaj   +1 more source

Experimental In-Field Transfer and Survival of Escherichia coli from Animal Feces to Romaine Lettuce in Salinas Valley, California. [PDF]

, 2019
This randomized controlled trial characterized the transfer of E. coli from animal feces and/or furrow water onto adjacent heads of lettuce during foliar irrigation, and the subsequent survival of bacteria on the adaxial surface of lettuce leaves.
Atwill, Edward R, Buchanan, Robert L, Chase, Jennifer A, Jay-Russell, Michele T, Jeamsripong, Saharuetai   +4 more
core   +1 more source

Sampling Procedure for Foliar Analysis of Forcing Azalea1

HortScience, 1976
Abstract Forcing azalea (Rhododendron sp. cvs. Redwing, Mission Bells and Gloria were subjected to sufficient and low levels of N, K, and Ca, and the difference in concentration of these nutrients was measured and termed “differential”. Immature, recently mature, and old leaves were sampled periodically from current shoots during development.
Paul V. Nelson, Nancy C. Mingis, Dean M. Krauskopf   +2 more
openaire   +1 more source