Results 21 to 30 of about 24,659 (117)

Embryo excision in Compositae, with implications for combating biodiversity loss. [PDF]

Appl Plant Sci
Abstract Premise Embryo excision is an effective, under‐described means of promoting germination in the sunflower family and may help to ensure the survival of endangered taxa or lineages with limited seed availability. Methods and Results We describe and illustrate a detailed method of embryo excision used successfully to stimulate germination in a ...
Baldwin BG, Fawcett S, Wolkis D.
europepmc   +2 more sources

Decay stages of Jurassic wood debris from Scotland: evidence for the coevolution of fungal rot, arthropods and the nurse log strategy. [PDF]

New Phytol
Summary A key feature of extant conifer forests is the high percentage of seeds that germinate and establish on dead wood; in some forests, this can exceed 90%. This deadwood can act as an ideal nursery for young tree species, leading to this type of seedbed being termed ‘nurse logs’.
Sagasti AJ, Burne S, Wyman J, Hetherington AJ.   +3 more
europepmc   +2 more sources

Un modelo estocástico de germinación [PDF]

, 2020
Assuming that the germination process of a seed passes through several stages (or states), including a state of non-germination, we model this phenomenon by means of a continuous-time Markov chain. The distribution of the germination time and the average
Villa-Morales, José, Villa-Morales,José, Villa Morales, José   +2 more
core   +1 more source

Germinación de la alfalfa (MEDICAGO SATIVA) en condiciones tropicales [PDF]

, 2022
La germinación de semillas es un proceso en el cual se generan cambios morfológicos y fisiológicos que terminan en el crecimiento del embrión. La germinación requiere de condiciones específicas de temperatura, niveles de oxígeno y luz, con las ...
Mendoza Hidalgo, Edwin, Gómez Villalva, Juan Carlos, Vasconez Galarza, Gustavo, Salinas Lozada, Camilo   +3 more
core   +1 more source

Can heterosis and inbreeding depression explain the maintenance of outcrossing in a cleistogamous perennial?

American Journal of Botany, Volume 110, Issue 10, October 2023., 2023
Abstract Premise What maintains mixed mating is an evolutionary enigma. Cleistogamy—the production of both potentially outcrossing chasmogamous and obligately selfing cleistogamous flowers on the same individual plant—is an excellent system to study the costs of selfing.
Tatyana Y. Soto, Juan Diego Rojas‐Gutierrez, Christopher G. Oakley   +2 more
wiley   +1 more source

Los rizobios incrementan la germinación de las semillas de Coffea arabica y Coffea canephora. Segunda evidencia en Cuba

Agronomía Mesoamericana, 2021
Introducción. La lenta y asincrónica germinación de las semillas de café afecta la obtención de plántulas e incrementa los gastos asociados a la producción.
Sucleidi Nápoles-Vinent, Silfredo Milanés-Riquene, Ionel Hernández-Forte, Belkis Morales-Mena, María Caridad Nápoles-Garcias   +4 more
doaj   +1 more source

Precipitation timing and soil substrate drive phenology and fitness of Arabidopsis thaliana in a Mediterranean environment

Functional Ecology, Volume 37, Issue 9, Page 2471-2487, September 2023., 2023
Read the free Plain Language Summary for this article on the Journal blog. Abstract In Mediterranean climates, the timing of seasonal rains determines germination, flowering phenology and fitness. As climate change alters seasonal precipitation patterns, it is important to ask how these changes will affect the phenology and fitness of plant populations.
Alejandra Martínez‐Berdeja, Miki Okada, Martha D. Cooper, Daniel E. Runcie, Liana T. Burghardt, Johanna Schmitt   +5 more
wiley   +1 more source

Linking animal behaviour and tree recruitment: Caching decisions by a scatter‐hoarder corvid determine seed fate in a Mediterranean agroforestry system

Journal of Ecology, Volume 111, Issue 2, Page 400-411, February 2023., 2023
The consequences of seed caching for seedling early establishment are driven by a fine decision‐making process of the disperser. Magpies seemed to ponder the characteristics of the habitat and the seed itself to determine where and how to cache each nut. By doing so, magpies reinforced the quality of seed dispersal effectiveness, as they cached walnuts
Mercedes Molina‐Morales, Alexandro B. Leverkus, Gonzalo Albaladejo‐Robles, Loreto Martínez‐Baroja, Lorenzo Pérez‐Camacho, Pedro Villar‐Salvador, Salvador Rebollo, José María Rey‐Benayas, Jorge Castro   +8 more
wiley   +1 more source

Pruebas de germinación de semillas de forestales nativos de Córdoba, Colombia, en laboratorio y casa-malla

Revista U.D.C.A Actualidad & Divulgación Científica, 2016
El objetivo del estudio fue evaluar la germinación de las semillas de cinco especies forestales nativas de Córdoba: Cedrela odorata, Cariniana pyriformis, Bombacopsis quinata, Anacardium excelsum y Schizolobium parahybum.
Miguel Espitia, Carlos Cardona, Hermes Araméndiz   +2 more
doaj   +1 more source

EFECTO DE LA INOCULACIÓN DE Azospirillum halopraeferens Y Bacillus amyloliquefaciens EN LA GERMINACIÓN DE Prosopis chilensis

Tropical and Subtropical Agroecosystems, 2009
Las Bacterias Promotoras de Crecimiento de Plantas (BPCP), son microorganismos fijadores de nitrógeno atmosférico y a su vez producen hormonas que aprovechan las plantas para llevar a cabo su desarrollo. Es importante la utilización de microorganismos benéficos para reducir la fertilización química.
J.A. Villegas-Espinoza, B. Murillo-Amador, M.E. Puente, O. Grimaldo-Juárez, S.M. Avilés-Marín, J.F. Ponce Medina   +5 more
openaire   +2 more sources