Influence of different storage conditions on quality characteristics of seed material from semi‐natural grassland

Haslgrübler, P.; Krautzer, B.; Blaschka, A.; Graiss, W.; Pötsch, E. M.

doi:10.1111/gfs.12131

Cited by 8 publications

(11 citation statements)

References 41 publications

(49 reference statements)

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“…The mean per cent germinabilities (26% for grasses and 32% for forbs) were rather low and of the same order of magnitude as found by Heilinger and Florineth () (about 25%, average for seeds harvested in 3 years) but lower than found by Haslgrübler, Krautzer, Blaschka, Graiss, and Pötsch (, ) (about 60% for seeds harvested in only 1 year). Per cent germinabilities were considerably lower than the per cent viabilities.…”

Section: Discussionsupporting

confidence: 58%

Seed production in grassland species: Morpho‐biological determinants in a species‐rich semi‐natural grassland

Scotton

2018

Grass and Forage Science

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Studying the seed production of herbaceous species can help to conserve grassland habitats and re‐create new high‐value grassland surfaces. Studies on grassland seed production have focused mainly on individual species and traits, without characterizing their relative importance at the plant community level. The aim of this study was to investigate the entire seed production process of the main species in a temperate grassland. Fertile shoots (FS) of twenty‐nine grasses and forbs were collected over 4 years and analysed for sixteen traits that determine inflorescence size, seed production and seed quality. The per cent viability played a predominant role in determining the total production of viable seeds. Forbs showed a range of reproductive strategies, including variable distribution of flowers among growth periods, number of inflorescences per FS and relationship between seed size and FS density in the grassland. The flower production for grasses was concentrated in the first growth period, but this limitation was mitigated by a higher seed dormancy. The number of viable seeds per FS and seed size were important components of the reproductive strategy of forbs, with heavy‐seeded species being characterised by high individual densities in the community, but producing few seeds per FS. Light‐seeded species showed an opposite pattern. The results suggest that when using seeds from semi‐natural grasslands for ecological restoration, special attention should be paid to the seed amount, germinability and viability of forbs, as they seem to depend more on seed reproduction and have a lower ovule to seed transformation efficiency.

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Section: Discussionsupporting

confidence: 58%

Seed production in grassland species: Morpho‐biological determinants in a species‐rich semi‐natural grassland

Scotton

2018

Grass and Forage Science

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“…Seed materials harvested via on-site threshing and seed-stripping have yielded germination capacities of 60% and 70–80%, respectively ( Scotton, Kirmer & Krautzer, 2012 ). According to Haslgrübler et al (2015) , after storing at room temperature for one year, the germination capacity reached an average value of 54% for on-site threshing and 78% for seed-stripping. Scotton, Kirmer & Krautzer (2012) observed a 50–60% germination rate after storage at room temperature.…”

Section: Discussionmentioning

confidence: 99%

Seeds harvested during mowing from semi-natural grasslands as an ad hoc but effective solution for grassland restoration

Perera

Nocoń

Mollashahi

et al. 2022

PeerJ

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Species-rich grasslands formed by local ecotypes of native species provide numerous ecosystem services both in rural areas as well as urban grasslands. Nonetheless, their area is still too small, making grasslands one of the most frequently restored habitats. Successful restoration requires high-quality seed material, which is expensive and often not easy to acquire. In this study, we tested the potential of seeds accidentally collected during the mowing of a semi-natural grassland for grassland restoration. We tested seed purity, species composition, and germination capability in both laboratory and field conditions. Ninety percent of the collected material consisted of pure seeds of numerous species. Their germination capability was relatively low but still sufficient for successful grassland restoration under a typical seed density/mass per unit area seeding ratio. The germination capacity was the highest in the first two weeks after sowing and increased with overwintering seed storage. The results suggested that the seeds could be successfully used for species-rich grassland restoration. In terms of advantages, the seed mixture had a low cost and contained native species seeds representing local ecotypes. In terms of disadvantages, there was a relatively low amount of seed material and an inability to plan the time of seed harvesting. Thus, the use of the accidentally collected seeds can be considered an effective but rather ad hoc solution.

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“…Storage of seeds in seed banks can be suggested in countries with insufficient market seed supply and for species with orthodox seeds (Peti et al 2015; Merritt & Dixon 2011). According to the study of Haslgrübler et al (2015), the harvested seed material should be stored under cool conditions and used within two years. Viability decreases over the long termas demonstrated e.g.…”

Section: Discussionmentioning

confidence: 99%

Effect of seed storing duration and sowing year on the seedling establishment of grassland species in xeric environments

Kövendi-Jakó

Szitár

Halassy

et al. 2020

Restoration Ecology

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Theavailability of seeds of native species in many countries for grassland restoration is limited; therefore, ex situ seed banks can gain importance as a source of germplasm in the future. We tested the usability of seed accessions of the Pannon Seed Bank for reintroduction with the aim to restore sandy grassland in Hungary. Seeds of 10 native sandy grassland species were seeded in the year of collection and after one or two years of storage. The establishment was estimated by counting seedlings along seeded transects for two vegetation seasons. This study produced the first numerical estimate we know about of native sand grassland species emergence in the field. A low establishment of the tested species was found, ranging from 0.002 to 8%. Within this range, Dianthus serotinus had the highest establishment, while Festuca vaginata, which was sown as matrix species, performed only medium establishment. The short‐term storage (1 or 2 years) of seeds had no significant effect, except for F. vaginata, where seed storage had a positive effect on reintroduction success. The year of seeding had the highest influence on recruitment. Four species were found to emerge over two years instead of only the first year. Based on our results, the weak seed yield of certain years and the low supply of native seeds in the market can be mitigated by using stored seeds. It is recommended to use multi‐year, scheduled seeding to reduce the negative impacts of particularly dry years and to increase the restoration success.

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Influence of different storage conditions on quality characteristics of seed material from semi‐natural grassland

Cited by 8 publications

References 41 publications

Seed production in grassland species: Morpho‐biological determinants in a species‐rich semi‐natural grassland

Seed production in grassland species: Morpho‐biological determinants in a species‐rich semi‐natural grassland

Seeds harvested during mowing from semi-natural grasslands as an ad hoc but effective solution for grassland restoration

Effect of seed storing duration and sowing year on the seedling establishment of grassland species in xeric environments

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