Phenology, and seed production and germination of seven endemic Mimosa species (Fabaceae-Mimosoideae) of the Tehuacán-Cuicatlán Valley, Mexico

Camargo‐Ricalde, Sara Lucía; Dhillion, Shivcharn S.; Garcı́a-Garcı́a, Verónica

doi:10.1016/j.jaridenv.2003.11.007

Cited by 35 publications

(42 citation statements)

References 24 publications

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“…In this study, the percentages of infested seeds were consistent with those reported by OrozcoAlmanza et al (2003) and Camargo-Ricalde et al (2004), who found that the species of Mimosa had a high percentage of bruchid-infested seeds (30-75 %), reducing the number of viable seeds and, consequently, the number of seedlings for posterior recruitment.…”

Section: Discussionsupporting

confidence: 92%

“…As a fi rst step, it is known that seeds of some Mimosa species are able to germinate in a wide range of temperatures (De Souza-Araújo and De Castro-Andrade, 1983;CamargoRicalde et al, 2004;Pavón et al, 2011), and that scarifi cation increases the percentage of germination (Ferreira et al, 1992;Camargo-Ricalde and Grether, 1998;Camargo-Ricalde et al, 2004;González-Castañeda et al, 2004;Silveira and Fernandes, 2006;Leal and Biondi, 2007;Chahuan and Johnson, 2008;Pavón et al, 2011;Gehan-Jayasuriya et al, 2013). However, it is not yet possible to generalize about how seeds will respond to both seed scarifi cation and temperature fl uctuation because only 5 % of the species of Mimosa have been studied around the world.…”

Section: Susana Adriana Montaño-arias Et Almentioning

confidence: 99%

“…For the Mexican Mimosa, seed germination has merely been studied in 13 species occurring in arid ecosystems (i.e. Camargo-Ricalde et al, 2004, Pavón et al, 2011 and only one from temperate forests (Martínez-Pérez et al, 2006). Hence, and under the assumption that species are adapted to the environments where they have evolved, arid and semiarid ecosystem species will be able to germinate at higher and more extreme temperatures than temperate ecosystem species.…”

Section: Susana Adriana Montaño-arias Et Almentioning

confidence: 99%

“…Different seed scarifi cation methods have been documented for Mimosa species (De Souza-Araújo and De Castro-Andrade, 1983; Camargo-Ricalde and Grether, 1998;Martínez-Pérez et al, 2006;Silveira and Fernandes, 2006 In this study, mechanically scarifi ed seeds reached high germination percentages (over 70 %) for both taxa; while, unscarifi ed seeds only achieved 0-12 %. In nature, even if seed germination is low, Mimosa seed scarifi cation occurs by different mechanisms such as changes in daily temperature, incomplete predation by insects as bruchids (Orozco-Almanza et al, 2003;Camargo-Ricalde et al, 2004), damage caused by soil microorganisms, abrasion by soil particles and fi re (Baskin et al, 1998;Taylor, 2005), and animal ingestion (i.e. goats, Baraza and Valiente-Banuet, 2008;Giordani, 2008).…”

Section: Effect Of Seed Scarifi Cation On Germinationmentioning

confidence: 99%

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Effect of scarification and temperature on seed germination of two Mexican species of Mimosa (Leguminosae-Mimosoideae)

et al. 2015

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It has been considered that Mimosa aculeaticarpa var. aculeaticarpa and M. luisana have the potential to restore temperate and semi-arid environments, respectively. Mature seeds were collected from eight mother plants per taxon to determine the effects of scarifi cation and temperature on seed germination of both taxa, and to defi ne the optimum temperature for germination. To obtain a representative sample of each taxon, seeds with the same weight and size were mixed. Five replicates of 20 seeds each (100 seeds per taxon/temperature, plus the control) were established. The seeds were mechanically scarifi ed and incubated under controlled conditions: 5 to 45 °C with 5 °C intervals, and a 12h light/12h darkness photoperiod. Results showed that scarifi cation and temperature were signifi cant factors in seed germination. In both taxa, germination was epigeal and phanerocotylar. The highest seed germination percentages were obtained when seeds were scarifi ed. 88 % of seeds of M. aculeaticarpa var. aculeaticarpa germinated at 25 °C. Hundred percent of seeds of M. luisana germinated at 30 °C. The optimum temperature for germination of seeds of both taxa was established at 25 °C. Mimosa taxa differ in the germination rate: M. luisana germinated at 6.6 seeds/day and M. aculeaticarpa var. aculeaticarpa at 3.4 seeds/day. Overall results suggest that, for both taxa, an increase or decrease in temperature will not inhibit seed germination, supporting the recommendation to use these plants for reforestation, as part of environmental restoration projects in temperate and semi-arid Mexican regions. Key words: arid tropical scrub, conservation, restoration, temperate forest.Resumen: Mimosa aculeaticarpa var. aculeaticarpa y M. luisana son taxa con potencial para la restauración ambiental. Se evaluaron los efectos de la escarifi cación y la temperatura en la germinación de semillas de ambos taxa y se defi nió la temperatura óptima de germinación, se colectaron semillas maduras de ocho individuos por especie. Las semillas (igual peso y tamaño) se mezclaron para obtener una muestra compuesta por taxon. Se establecieron cinco repeticiones de 20 semillas por taxon (100 semillas por taxon, por temperatura, más el control). Las semillas fueron escarifi cadas mecánicamente, realizando un corte en el extremo opuesto al eje del embrión e incubadas en un gradiente de 5 a 45 ºC, con intervalos de 5 °C y un fotoperíodo de 12h luz/12h oscuridad. Los resultados indican que la escarifi cación y la temperatura son factores signifi cativos para la germinación de las semillas. En ambos taxa, la germinación fue epígea y fanerocotilar. Los mayores porcentajes de germinación se obtuvieron cuando las semillas fueron escarifi cadas. Mimosa aculeaticarpa var. aculeaticarpa logró el 88 % de germinación a 25 °C; mientras que M. luisana alcanzó 100 % a 30 °C; sin embargo, para ambos taxa la temperatura óptima de germinación fue de 25 °C. La tasa de germinación difi ere, en M. luisana se registraron 6.6 semillas/día; mientras que en M. aculeati...

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Section: Discussionsupporting

confidence: 92%

Section: Susana Adriana Montaño-arias Et Almentioning

confidence: 99%

Section: Susana Adriana Montaño-arias Et Almentioning

confidence: 99%

Section: Effect Of Seed Scarifi Cation On Germinationmentioning

confidence: 99%

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Effect of scarification and temperature on seed germination of two Mexican species of Mimosa (Leguminosae-Mimosoideae)

et al. 2015

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“…Assim, a biologia reprodutiva dos vegetais influencia a estrutura, o funcionamento e a regeneração das comunidades vegetais. Nos trópicos, fatores climáticos e interações entre espécies estão frequentemente associados com a sazonalidade dos eventos reprodutivos das plantas (CAMARGO-RICALDE et al, 2004).…”

Section: Introductionunclassified

FENOLOGIA DA Copernicia prunifera (ARECACEAE) EM UMA ÁREA DE CAATINGA DO RIO GRANDE DO NORTE

Rocha

Silva

Dantas

et al. 2015

CERNE

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FENOLOGIA DA Copernicia prunifera (ARECACEAE) EM UMA ÁREA DE CAATINGA DO RIO GRANDE DO NORTE RESUMO: O objetivo do presente trabalho foi avaliar a fenologia vegetativa e reprodutiva da Copernicia prunifera (carnaúba) em população natural, correlacionando-a com as variáveis climáticas. O estudo foi realizado em uma área nativa, localizada no Campus da Unidade Acadêmica Especializada em Ciências Agrárias da UFRN, no município de Macaíba, RN. As avaliações foram feitas entre maio de 2010 e dezembro de 2012, totalizando 67 observações quinzenais das fenofases vegetativas e reprodutivas. As relações entre a ocorrência de cada fenofase e as variáveis climáticas (temperatura do ar, precipitação, umidade relativa, velocidade do vento e radiação) foram testadas por meio da correlação de Spearman, realizada com os dados climáticos da primeira (r S1 ), segunda (r S2 ), terceira (r S3 ) e quarta (r S4 ) quinzena anteriores ao evento fenológico. Os indivíduos de C. prunifera têm os eventos vegetativos assincrônicos, com perda de folhas e emissão de folhas novas durante todo o tempo. A floração é subanual, ou seja, ocorre mais de uma vez ao ano. Há relação positiva entre a intensidade de frutos imaturos e o período de maior temperatura, com atraso de três (r S3 = 0,261; P < 0,005) a quatro quinzenas (r S4 = 0,276; P < 0,005) do evento fenológico. Foram observadas também correlações positivas e significativas entre a temperatura e a intensidade e número de árvores com frutos maduros. Adicionalmente, a intensidade de dispersão dos frutos maduros ocorre em períodos de menor umidade relativa do ar (r S4 = -0,299; P < 0,005). Assim, supõe-se que a espécie estudada foi influenciada por aspectos da morfologia e fisiologia, com os fatores ambientais interferindo secundariamente. PHENOLOGY OF Copernicia prunifera (ARECACEAE) IN A CAATINGA AREA OF RIO GRANDE DO NORTEABSTRACT: The objective of this study was to evaluate the vegetative and reproductive phenology of Copernicia prunifera (carnauba wax) in natural populations correlated with climate variables. The study was conducted in a native area, located in the Campus of Academic Unit Specialized in Agricultural Sciences of UFRN in the municipality of Macaíba, RN. The evaluations were made between May 2010 and December 2012, totaling 67 fortnightly observations of vegetative phenophases and reproductive. The relationship between the occurrence of each phenophase and climate variables (air temperature, precipitation, relative humidity, wind speed and radiation) were tested by Spearman correlation, performed with the climate data of the first (r S1 ), second (r S2 ), third (r S3 ) and fourth (r S4 ) phenological fortnight prior to the event. Individuals of C. prunifera are asynchronous with leaf loss and emission of new leaves all the time. Flowering is subanual, i.e. occurs more than once a year. There is a positive relationship between the intensity of unripe fruits and higher temperature with delay of three (r S3 = 0.261; P < 0.005) to four fortnights (r S4 = 0.276; P < 0.005) to the ...

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Effect of seed age on germination, seedling survival and growth of Mimosa luisana (Leguminosae)

Montaño-Arias

Zavaleta‐Mancera

Camargo‐Ricalde

et al. 2020

Trees

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Phenology, and seed production and germination of seven endemic Mimosa species (Fabaceae-Mimosoideae) of the Tehuacán-Cuicatlán Valley, Mexico

Cited by 35 publications

References 24 publications

Effect of scarification and temperature on seed germination of two Mexican species of Mimosa (Leguminosae-Mimosoideae)

Effect of scarification and temperature on seed germination of two Mexican species of Mimosa (Leguminosae-Mimosoideae)

FENOLOGIA DA Copernicia prunifera (ARECACEAE) EM UMA ÁREA DE CAATINGA DO RIO GRANDE DO NORTE

Effect of seed age on germination, seedling survival and growth of Mimosa luisana (Leguminosae)

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