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Efecto de la temperatura, el potencial hídrico y su interacción sobre la germinación de semillas de lapacho rosado (Handroanthus impetiginosus)
Rivero, Maria Victoria; Malagrina, Gisela Marina; Alvarez, Ana Carolina; Amarillo Rosas, Graciela Karina; Fornes, Luis Fernando; Sühring, Silvia Susana; Batlla, Diego; Galíndez, Guadalupe (Red Argentina de Biología de Semillas, 2023-11-06)Uno de los procesos más importantes del ciclo de vida de las plantas es la germinación de las semillas. La temperatura y la disponibilidad de agua son los principales factores ambientales que regulan la germinación de las ... -
Environmental gradients as “natural labs” for elucidating the regeneration dynamics of three Nothofagus species under different climatic scenarios in Patagonia
Cagnacci, Julieta Maria; Estravis Barcala, Maximiliano; Gonzalez-Polo, Marina; Marchelli, Paula; Pastorino, Mario Juan; Martinez Meier, Alejandro; Batlla, Diego; Arana, María Veronica (2018-09)We work in Patagonian forests, the southernmost woody ecosystems of the world, in which three tree species have a clear altitudinal distribution. Nothofagus obliqua is frequent at 650-850 m above the sea level, N. nervosa ... -
Seed dormancy responses to temperature relate to Nothofagus species distribution and determine temporal patterns of germination across altitudes in Patagonia
Arana, María Verónica; Gonzalez Polo, Marina; Martinez Meier, Alejandro; Gallo, Leonardo Ariel; Benech-Arnold, Roberto Luis; Sanchez, Rodolfo Augusto; Batlla, Diego (2015-08-26)Seeds integrate environmental cues that modulate their dormancy and germination. Although many mechanisms have been identified in laboratory experiments, their contribution to germination dynamics in existing communities ... -
Seed responses to temperature indicate different germination strategies among Festuca pallescens populations from semi-arid environments in North Patagonia
Lopez, Aldana; Marchelli, Paula; Batlla, Diego; Lopez, Dardo Ruben; Arana, María Veronica (Elsevier, 2019-04)Seed germination is one of the earliest phenotypes expressed by plants, and the accuracy to germinate in the correct time and place is essential for plant population fitness. Cues that regulate germination have been ... -
Structural aspects of dormancy in quinoa (Chenopodium quinoa): Importance and possible action mechanisms of the seed coat
Ceccato, Diana Valeria; Bertero, Héctor Daniel; Batlla, Diego; Galati, Beatriz Gloria (2015-05)Two possible sources of resistance to pre-harvest sprouting were evaluated in quinoa. They showed dormancy at harvest and significant variations in dormancy level in response to environmental conditions experienced during ...