Strict requirement of fluctuating temperatures as a reliable gap signal in Picris hieracioides var. japonica seed germination

Honda, Yukio; Katoh, Kazuhiro

doi:10.1007/s11258-006-9254-9

Cited by 11 publications

(12 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Sure thing is that there is a clear interaction between the light requirement and the fluctuating temperatures requirement (e.g. Honda and Katoh 2006).…”

Section: Discussionmentioning

confidence: 99%

Ecological correlations between the persistence of the soil seed bank and several plant traits, including seed dormancy

Honda

2007

Plant Ecol

Self Cite

View full text Add to dashboard Cite

It was empirically showed that seed size and life history correlate with the formation of a soil seed bank. Although no empirical data are available that indicate a close relationship between seed dormancy and the soil seed bank, dormancy has been considered essential to the formation of a soil seed bank. I have considered the formation of the soil seed bank and survival of seeds for more than a year in the soil, and the persistence and survival of the seed bank for more than 5 years. These periods were derived from the definition of a persistent seed bank and the criterion for seed banks of long-term persistence. Plant traits that are closely related to the formation or persistence of a seed bank and their relationships to dormancy were analysed using two pre-existing databases of seed longevity in soil and comparative ecology. The integrated database comprised 18 plant traits and seed bank formation or persistence data. This approach was used to identify more reliable general empirical rules. The results of a regression tree analysis and common statistical tests of plant traits indicated that only life history and seed size were closely related to seed bank formation, and dormancy was not essential for the formation and persistence of a seed bank. However, the contribution of dormancy differed slightly between dormancy types. Scarification or dry storage requirements to break dormancy slightly enhanced the formation and persistence of a seed bank, whereas a chilling requirement decreased the formation and persistence of a seed bank. In contrast, fluctuating temperature requirements clearly contributed to the formation and persistence of a seed bank.

show abstract

“…Sure thing is that there is a clear interaction between the light requirement and the fluctuating temperatures requirement (e.g. Honda and Katoh 2006).…”

Section: Discussionmentioning

confidence: 99%

Ecological correlations between the persistence of the soil seed bank and several plant traits, including seed dormancy

Honda

2007

Plant Ecol

Self Cite

View full text Add to dashboard Cite

show abstract

“…Other studies indicated light as an important factor controlling the germination of plants (Honda and Katoh, 2007; Accepted paper and Moreno, 2009). Moreover, the dependence of germination on light availability is wellrendered in literature for plants with very small seeds, such as C. bursifolia, confirming the need for light and shallow planting depth for these kind of species (Milberg et al, 2000).…”

Section: Seed Germination Testmentioning

confidence: 96%

Germination and performance of seven native wildflowers in the Mediterranean landscape plantings

et al. 2017

View full text Add to dashboard Cite

The use of native species in landscape design is a choice related to environmental sustainability and it contributes to the aesthetic appeal of urban and marginal areas. However, to date, the lack of knowledge of the ecological characteristics and agronomic practices of these species, represents a limit for their use. This study aims to obtain information about germination ecology, morphological traits and ornamental value of 7 selected perennial native taxa, with potential use in meadows seed mixtures for the Mediterranean environment. Seed germination for each taxon was assessed under different conditions (temperature, photoperiod and pre-treatment) in a controlled environment, while data on plant performances was collected from field plots. In general, the dormant seeds showed a positive response to pre-treatment with gibberellic acid (GA 3 ) and chilling within a period of about six months from the time of seed collection. The dependence of germination on light and temperature was observed in most of the tested taxa.Differences in plant height and flowering dynamics gave practical directions in terms of combining seeds of different species to create and maintain a wildflower meadow in lowmaintenance areas. Crepis bursifolia L. and Hypochaeris radicata L. were the only two species which showed good persistence during the two-year field study and met the aesthetic requirements of low-input Mediterranean landscaping. Our study by adding original findings to the limited knowledge available on wildflower sowing in the Mediterranean environment,contributes to the development of sustainable strategies in the greening projects designed for those peculiar climatic conditions.

show abstract

“…Light incidence is generally considered to be positively related to germination. Moreover, it is thought to play an essential role as a gap detection mechanism (Silvertown 1980;Honda and Katoh 2007). However, the parameter reflecting GSF influence on germination was found to be non-significant within the range generated by the two tested stand densities.…”

Section: Ecological and Management Implicationsmentioning

confidence: 87%

“…Typically in forestry, germination studies have been conducted under controlled conditions to 'untangle' species dormancy trends (Skordilis and Thanos 1995;Nomiya 2010;Cook et al 2008;Cooke et al 2002), to shed light on optimum temperature and humidity conditions (Lippai et al 1996;Cochard and Jackes 2005;Magini 1955), to investigate the influence of light on the process (Silveira et al 2004;Honda and Katoh 2007;Seiwa et al 2009), to determine germination facilitation after fire (Baeza and Roy 2008;De Luis et al 2008;Ooi 2010) or to explore germination responses to topsoil conditions (Puerta-Piñero et al 2006). Among the few studies carried out either partially or completely through field trials, only general climate comparisons (Ordóñez et al 2004;Meyer and Pendleton 2005), particular climatic events (Ruano et al 2009) and understory composition (Keyes et al 2009) have been evaluated in relation to germination.…”

Section: Original Papermentioning

confidence: 99%

A silviculture-oriented spatio-temporal model for germination in Pinus pinea L. in the Spanish Northern Plateau based on a direct seeding experiment

Manso

Calama²,

Madrigal³

et al. 2013

Eur J Forest Res

View full text Add to dashboard Cite

Natural regeneration in Pinus pinea stands commonly fails throughout the Spanish Northern Plateau under current intensive regeneration treatments. As a result, extensive direct seeding is commonly conducted to guarantee regeneration occurrence. In a period of rationalization of the resources devoted to forest management, this kind of techniques may become unaffordable. Given that the climatic and stand factors driving germination remain unknown, tools are required to understand the process and temper the use of direct seeding. In this study, the spatio-temporal pattern of germination of P. pinea was modelled with those purposes. The resulting findings will allow us to (1) determine the main ecological variables involved in germination in the species and (2) infer adequate silvicultural alternatives. The modelling approach focuses on covariates which are readily available to forest managers. A two-step nonlinear mixed model was fitted to predict germination occurrence and abundance in P. pinea under varying climatic, environmental and stand conditions, based on a germination data set covering a 5-year period. The results obtained reveal that the process is primarily driven by climate variables. Favourable conditions for germination commonly occur in fall although the optimum window is often narrow and may not occur at all in some years. At spatial level, it would appear that germination is facilitated by high stand densities, suggesting that current felling intensity should be reduced. In accordance with other studies on P. pinea dispersal, it seems that denser stands during the regeneration period will reduce the present dependence on direct seeding.

show abstract

Strict requirement of fluctuating temperatures as a reliable gap signal in Picris hieracioides var. japonica seed germination

Cited by 11 publications

References 45 publications

Ecological correlations between the persistence of the soil seed bank and several plant traits, including seed dormancy

Ecological correlations between the persistence of the soil seed bank and several plant traits, including seed dormancy

Germination and performance of seven native wildflowers in the Mediterranean landscape plantings

A silviculture-oriented spatio-temporal model for germination in Pinus pinea L. in the Spanish Northern Plateau based on a direct seeding experiment

Contact Info

Product

Resources

About