Results 71 to 80 of about 244,333 (312)

Assessing the viability of genebanked seeds from rare, wild plants native to the United States using the D.E.A.D. paradigm

Applications in Plant Sciences, EarlyView.
Abstract Premise Genebanks must maintain viable seeds for decades. Seeds that germinate are clearly alive, but some seeds, often from wild populations, do not germinate because they are dormant, empty, aged, or damaged (D.E.A.D.). This work evaluates the effects of D.E.A.D.
Christina Walters, Lisa M. Hill, Katherine D. Heineman, Hannah M. Tetreault, Shaimaa Ibrahim, Katherine Markstein, Cheryl Birker, Kris Freitag, Dustin Wolkis, Michael Kunz, Sheila Murray, Nathaniel Kingsley, Alexandra Seglias, Nicholas Matsumoto, Thomas N. Kaye, Cheryl Peterson, Matthew A. Albrecht, Noah Dell, Stacy Anderson, Steve Blackwell, David Remucal, Wendy Gibble, Anita Tiller, Emily Coffey, Jason Ligon, Laurie Blackmore, Carrie Radcliffe, Heather E. Schneider, Kristen Nelson, David Sollenberger, Jessamine Finch, Kate Wellspring, Robert Jetton, Joyce Maschinski   +33 more
wiley   +1 more source

Mapping soils in two watersheds using legacy data and extrapolation for similar surrounding areas

Ciência e Agrotecnologia
Existing soil maps (legacy data) associated with digital mapping techniques are alternatives to obtain information at lower costs, however, tests are required to do it more efficiently. This study had as objectives to compare different methods to extract
Marcelo Henrique Procópio Pelegrino, Sérgio Henrique Godinho Silva, Michele Duarte de Menezes, Elidiane da Silva, Phillip Ray Owens, Nilton Curi   +5 more
doaj   +1 more source

Distinct responses of soil respiration to experimental litter manipulation in temperate woodland and tropical forest [PDF]

, 2018
Global change is affecting primary productivity in forests worldwide, and this, in turn, will alter long‐term carbon (C) sequestration in wooded ecosystems.
Allen, Billings, Bingeman, Boone, Cavelier, Crow, Dixon, Fenn, Graaff, Hamer, Hedges, Heijden, Hoosbeek, Jobbagy, Jones, Kicklighter, Kuzyakov, Kuzyakov, Lopez-Sangil, Malhi, Nottingham, Putten, Raich, Rasmussen, Sayer, Sayer, Sayer, Sayer, Schlesinger, Sulzman, Trueman, Vance, Vries, Windsor, Wright, Xu, Yavitt   +36 more
core   +3 more sources

Unlocking fruit dimensions: Quantification of functional traits driving plant–frugivore interactions

Applications in Plant Sciences, EarlyView.
Abstract Fleshy fruits attract animals to ingest fruit, swallow the seeds, and release them in the landscape, thus facilitating seed dispersal and plant regeneration. Attraction of animal dispersers is achieved via attractants such as color or scent, and rewards like sugars, lipids, and micronutrients.
Linh M. N. Nguyen, Evangelia Linda Chronopoulou, Gabriela A. S. Escaliante, Kim Valenta, Omer Nevo   +4 more
wiley   +1 more source

Rarity of monodominance in hyperdiverse Amazonian forests. [PDF]

, 2019
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence
Alonso, Alfonso, Amaral, Iêda Leão, Andrade, Ana, Araujo-Murakami, Alejandro, Arboleda, Nicolás Castaño, Arroyo, Luzmila, Assis, Rafael L, Aymard C, Gerardo A, Baraloto, Chris, Brienen, Roel, Bánki, Olaf S, Camargo, José Luís, Carim, Marcelo de Jesus Veiga, Carvalho, Fernanda Antunes, Castellanos, Hernán, Castilho, Carolina V, Casula, Katia Regina, Cintra, Bruno Barçante Ladvocat, Coelho, Luiz de Souza, Comiskey, James A, Costa, Flávia RC, Cárdenas López, Dairon, Dallmeier, Francisco, Damasco, Gabriel, de Aguiar, Daniel Praia Portela, de Medeiros, Marcelo Brilhante, de Sousa Farias, Emanuelle, de Souza, Fernanda Coelho, de Toledo, José Julio, Demarchi, Layon O, do Amaral, Dário Dantas, Draper, Freddie, Duivenvoorden, Joost F, Duque, Alvaro, Dávila, Nállarett, Engel, Julien, Feeley, Kenneth J, Feitosa, Yuri Oliveira, Feldpausch, Ted R, Ferreira, Leandro Valle, Filho, Diogenes de Andrade Lima, García-Villacorta, Roosevelt, Gomes, Vitor HF, Groeneveld, Jürgen, Guevara, Juan Ernesto, Guimarães, José Renan da Silva, Helal, Nora, Henkel, Terry W, Honorio Coronado, Euridice N, Huth, Andreas, Irume, Mariana Victória, Killeen, Timothy J, Laurance, Susan GW, Laurance, William F, Lima de Queiroz, Helder, Lloyd, Jon, Lopes, Aline, Lopes, Maria Aparecida, Lozada, José Rafael, Luize, Bruno Garcia, Magalhães, José Leonardo Lima, Magnusson, William E, Manzatto, Angelo Gilberto, Marimon, Beatriz S, Marimon-Junior, Ben Hur, Martins, Maria Pires, Matos, Francisca Dionízia de Almeida, Mendonça Nascimento, Henrique Eduardo, Mendoza, Abel Monteagudo, Mogollón, Hugo F, Molino, Jean-François, Montero, Juan Carlos, Moraes de Leão Novo, Evlyn Márcia, Mostacedo, Bonifacio, Neill, David, Núñez Vargas, Percy, Petronelli, Pascal, Phillips, Oliver L, Piedade, Maria Teresa Fernandez, Pitman, Nigel CA, Quaresma, Adriano, Ramos, José Ferreira, Reis, Neidiane Farias Costa, Revilla, Juan David Cardenas, Rincón, Lorena M, Sabatier, Daniel, Salomão, Rafael P, Schietti, Juliana, Schöngart, Jochen, Silva, Thiago Sanna Freire, Simon, Marcelo Fragomeni, Sousa, Thaiane R, Stevenson, Pablo R, Ter Steege, Hans, Terborgh, John, Vasquez, Rodolfo, Venticinque, Eduardo Martins, Vicentini, Alberto, Vieira, Ima Célia Guimarães, Wittmann, Florian   +99 more
core  

Sustainable farming with native rocks: the transition without revolution. [PDF]

, 2006
The development process which humanity passed through favored a series of conquests, reflected in the better quality of life and longevity, however, it also provoked upsets and severe transformation in the environment and in the human food security. Such
ALTIERI MA, DISSANAYAKE DB, FONSECA R, FYFE WS, LEONARDOS OH, LEONARDOS OH, LEONARDOS OH, MELFI AJ, Othon H. Leonardos, SHIKI S, SMEDLEY PL, SMITH B, Suzi H. Theodoro, THEODORO SCH, VAN STRAATEN P, William S. Fyfe   +15 more
core   +4 more sources

A simple and affordable protocol to assess censer seed dispersal: First confirmation of the mechanism in the genus Solanum

Applications in Plant Sciences, EarlyView.
Abstract Premise The censer seed dispersal mechanism, whereby mature fruits are retained on plants and seeds dispersed by mechanical shaking, is among the most specialized wind‐aided seed dispersal strategies employed by the flowering plants. An efficient, affordable, and easily repeatable protocol for determining whether a species uses this unusual ...
Abigail J. Motter, Christopher T. Martine, Melody P. Sain   +2 more
wiley   +1 more source

Phosphorus availability as a function of its time of contact with different soils

Revista Brasileira de Engenharia Agrícola e Ambiental
Phosphorus (P) availability is related to soil sorption capacity and is relevant to planning P fertilization and evaluating its residual effect. The aim of this work was to evaluate the P availability to maize plants after different incubation times of ...
Hemmannuella C. Santos, Fábio H. T. de Oliveira, Adailson P. de Souza, Ignácio H. Salcedo, Valério D. M. Silva   +4 more
doaj   +1 more source

Soil microstructure and electron microscopy [PDF]

As part of the process of comparing Martian soils with terrestial soils, high resolution electron microscopy and associated techniques should be used to examine the finer soil particles, and various techniques of electron and optical microscopy should be
Fryer, J. R., Smart, P.
core   +1 more source

Experimentally induced root mortality increased nitrous oxide emission from tropical forest soils [PDF]

, 2003
We conducted an experiment on sand and clay tropical forest soils to test the short‐term effect of root mortality on the soil‐atmosphere flux of nitrous oxide, nitric oxide, methane, and carbon dioxide.
Crill, Patrick M., Dias, Jadson D., Keller, Michael, McGroddy, Megan E., Robertson, Jillan R., Silva, Hudson, Silver, Whendee L., Varner, Ruth K.   +7 more
core   +2 more sources