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Australian Journal of Botany Australian Journal of Botany Society
Southern hemisphere botanical ecosystems
RESEARCH ARTICLE

Germination ecology of six species of Eucalyptus in shrink–swell vertosols: moisture, seed depth and seed size limit seedling emergence

Lorena Ruiz Talonia A C , Nick Reid A , Caroline L. Gross A and R. D. B. Whalley B
+ Author Affiliations
- Author Affiliations

A Ecosystem Management, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.

B Botany, University of New England, School of Environmental and Rural Science, Armidale, NSW 2351, Australia.

C Corresponding author. Email: lruiztal@myune.edu.au

Australian Journal of Botany 65(1) 22-30 https://doi.org/10.1071/BT16155
Submitted: 1 August 2016  Accepted: 8 November 2016   Published: 12 December 2016

Abstract

We examined the potential of direct-seeding Eucalyptus species to revegetate the vertosol (‘cracking clay’) soils that characterise the floodplains of north-western New South Wales. We investigated the influence of sowing depth (0, 6, 12 and 20 mm) and three soil-moisture scenarios (dry, moist and flooded) on seedling emergence of seedlings of six species of Eucalyptus with a range of seed sizes (E. blakelyi, E. camaldulensis, E. melanophloia, E. melliodora, E. pilligaensis and E. populnea). We used cracking clay soil from the region in a glasshouse environment. Seedling emergence was low despite high seed viability and provision of optimum temperatures and soil moisture conditions. All six species exhibited greatest emergence when sown at 0–6-mm depth, with seed size being less important than moisture (except under dry conditions) and proximity to the surface. Species responded differently to the three watering treatments. Eucalyptus melanophloia exhibited greatest emergence in the ‘dry’ watering treatment. The floodplain species, E. camaldulensis, E pilliganesis and E. populnea, had the greatest emergence under flood conditions. Eucalyptus blakelyi and E. melliodora exhibited intermediate emergence in relation to all three soil-moisture regimes. Although the direct seeding of these species in vertosol soils in the region may be successful on occasion, windows of opportunity will be infrequent and the planting of seedling tubestock will be more reliable for revegetation.

Additional keywords: cracking clay, direct seeding, revegetation, seed weight, shrink–swell soil, sowing depth.


References

ALA (2016) ‘Atlas of living Australia.’ Available at http://www.ala.org.au [Verified 27 January 2016]

Ansell D, Fifield G, Munro N, Freudenberger D, Gibbons P (2016) Softening the agricultural matrix: a novel agri-environment scheme that balances habitat restoration and livestock grazing. Restoration Ecology 24, 159–164.
Softening the agricultural matrix: a novel agri-environment scheme that balances habitat restoration and livestock grazing.Crossref | GoogleScholarGoogle Scholar |

Arndt W (1965) The nature of the mechanical impedance to seedlings by soil surface seals. Soil Research 3, 45–54.
The nature of the mechanical impedance to seedlings by soil surface seals.Crossref | GoogleScholarGoogle Scholar |

Arnold S, Kailichova Y, Knauer J, Ruthsatz AD, Baumgartl T (2014) Effects of soil water potential on germination of co-dominant Brigalow species: implications for rehabilitation of water-limited ecosystems in the Brigalow Belt bioregion. Ecological Engineering 70, 35–42.
Effects of soil water potential on germination of co-dominant Brigalow species: implications for rehabilitation of water-limited ecosystems in the Brigalow Belt bioregion.Crossref | GoogleScholarGoogle Scholar |

Azam G, Grant C, Nuberg I, Murray R, Misra R (2012) Establishing woody perennials on hostile soils in arid and semi-arid regions: a review. Plant and Soil 360, 55–76.
Establishing woody perennials on hostile soils in arid and semi-arid regions: a review.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XhsFWisLfE&md5=b01028ecbc33b524b23884f41032016cCAS |

Balogh J, Pintér K, Fóti S, Cserhalmi D, Papp M, Nagy Z (2011) Dependence of soil respiration on soil moisture, clay content, soil organic matter, and CO2 uptake in dry grasslands. Soil Biology & Biochemistry 43, 1006–1013.
Dependence of soil respiration on soil moisture, clay content, soil organic matter, and CO2 uptake in dry grasslands.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXjsFCmtLo%3D&md5=3cc9ff7958acdae92170a634762e945bCAS |

Boland DJ, Brooker MIH, Turnbull JW, Kleinig DA (1980) ‘Eucalyptus seed.’ (CSIRO: Canberra)

Boyd NS, Van Acker RC (2003) The effects of depth and fluctuating soil moisture on the emergence of eight annual and six perennial plant species. Weed Science 51, 725–730.
The effects of depth and fluctuating soil moisture on the emergence of eight annual and six perennial plant species.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXntlKks7w%3D&md5=0f2b4e96f48a83934698813e47f3b460CAS |

Bronick CJ, Lal R (2005) Soil structure and management: a review. Geoderma 124, 3–22.
Soil structure and management: a review.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXhtVOru7jP&md5=7406a263efe10d29c7baf83dfc5d7b7bCAS |

Carr D, Bonney N, Millsom D (2007) The effect of sowing season on the reliability of direct seeding. Report Book No. 1741515025, Rural Industries Research and Development Corporation, Canberra.

Chambers JC, MacMahon JA (1994) A day in the life of a seed: movements and fates of seeds and their implications for natural and managed systems. Annual Review of Ecology and Systematics 25, 263–292.
A day in the life of a seed: movements and fates of seeds and their implications for natural and managed systems.Crossref | GoogleScholarGoogle Scholar |

Chenu K, Deihimfard R, Chapman SC (2013) Large-scale characterization of drought pattern: a continent-wide modelling approach applied to the Australian wheatbelt – spatial and temporal trends. New Phytologist 198, 801–820.
Large-scale characterization of drought pattern: a continent-wide modelling approach applied to the Australian wheatbelt – spatial and temporal trends.Crossref | GoogleScholarGoogle Scholar |

Costermans L (2009) ‘Native trees and shrubs of south-eastern Australia.’ (Reed New Holland: Sydney)

Cotching WE, Cooper J, Sparrow LA, McCorkell BE, Rowley W, Hawkins K (2002) Effects of agricultural management on Vertosols in Tasmania. Soil Research 40, 1267–1286.
Effects of agricultural management on Vertosols in Tasmania.Crossref | GoogleScholarGoogle Scholar |

Coughlan K, Loch R (1984) The relationship between aggregation and other soil properties in cracking clay soils. Soil Research 22, 59–69.
The relationship between aggregation and other soil properties in cracking clay soils.Crossref | GoogleScholarGoogle Scholar |

Donaldson S (1996) ʻGwydir River catchment: land management proposals for the integrated treatment and prevention of land degradation.ʼ (NSW Department of Land and Water Conservation: Gunnedah, NSW)

Donaldson S, Heath T (1997) Namoi River catchment: report on land degradation and proposals for integrated management for its treatment and prevention. NSW Department of Land and Water Conservation, Gunnedah, NSW.

Dorrough J, Moxham C (2005) Eucalypt establishment in agricultural landscapes and implications for landscape-scale restoration. Biological Conservation 123, 55–66.
Eucalypt establishment in agricultural landscapes and implications for landscape-scale restoration.Crossref | GoogleScholarGoogle Scholar |

Evans CE, Etherington JR (1990) The effect of soil water potential on seed germination of some British plants. New Phytologist 115, 539–548.
The effect of soil water potential on seed germination of some British plants.Crossref | GoogleScholarGoogle Scholar |

Facelli JM, Williams R, Fricker S, Ladd B (1999) Establishment and growth of seedlings of Eucalyptus obliqua: interactive effects of litter, water, and pathogens. Australian Journal of Ecology 24, 484–494.
Establishment and growth of seedlings of Eucalyptus obliqua: interactive effects of litter, water, and pathogens.Crossref | GoogleScholarGoogle Scholar |

Fensham RJ, Fairfax RJ (2007) Drought-related tree death of savanna eucalypts: species susceptibility, soil conditions and root architecture. Journal of Vegetation Science 18, 71–80.
Drought-related tree death of savanna eucalypts: species susceptibility, soil conditions and root architecture.Crossref | GoogleScholarGoogle Scholar |

Geeves G, Semple B, Johnston D, Johnston A, Hughes J, Koen T, Young J (2008) Improving the reliability of direct seeding for revegetation in the Central West of New South Wales. Ecological Management & Restoration 9, 68–71.
Improving the reliability of direct seeding for revegetation in the Central West of New South Wales.Crossref | GoogleScholarGoogle Scholar |

Gibson-Roy P, Delpratt J (2014) Meeting the seed needs for future restoration. Australasian Plant Conservation: Journal of the Australian Network for Plant Conservation 22, 9–10.

Grose R, Zimmer W (1958) Some laboratory germination responses of the seeds of river red gum, Eucalyptus camaldulensis Dehn. syn. Eucalyptus rostrata Schlecht. Australian Journal of Botany 6, 129–153.
Some laboratory germination responses of the seeds of river red gum, Eucalyptus camaldulensis Dehn. syn. Eucalyptus rostrata Schlecht.Crossref | GoogleScholarGoogle Scholar |

Hallett LM, Standish RJ, Jonson J, Hobbs RJ (2014) Seedling emergence and summer survival after direct seeding for woodland restoration on old fields in south-western Australia. Ecological Management & Restoration 15, 140–146.
Seedling emergence and summer survival after direct seeding for woodland restoration on old fields in south-western Australia.Crossref | GoogleScholarGoogle Scholar |

Harper JL, Williams JT, Sagar GR (1965) The behaviour of seeds in soil: I. The heterogeneity of soil surfaces and its role in determining the establishment of plants from seed. Journal of Ecology 53, 273–286.
The behaviour of seeds in soil: I. The heterogeneity of soil surfaces and its role in determining the establishment of plants from seed.Crossref | GoogleScholarGoogle Scholar |

Hobbs RJ, Hallett LM, Ehrlich PR, Mooney HA (2011) Intervention ecology: applying ecological science in the twenty-first century. Bioscience 61, 442–450.
Intervention ecology: applying ecological science in the twenty-first century.Crossref | GoogleScholarGoogle Scholar |

Kell DB (2011) Breeding crop plants with deep roots: their role in sustainable carbon, nutrient and water sequestration. Annals of Botany 108, 407–418.
Breeding crop plants with deep roots: their role in sustainable carbon, nutrient and water sequestration.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXhtVygsLjM&md5=120708d34bc8b4ad7e116cbec7f9c5d6CAS |

Lambert F, Bower M, Whalley R, Andrews A, Bellotti W (1990) The effects of soil moisture and planting depth on emergence and seedling morphology of Astrebla lappacea (Lindl.) Domin. Australian Journal of Agricultural Research 41, 367–376.
The effects of soil moisture and planting depth on emergence and seedling morphology of Astrebla lappacea (Lindl.) Domin.Crossref | GoogleScholarGoogle Scholar |

Leishman MR, Westoby M (1994) The role of seed size in seedling establishment in dry soil conditions: experimental evidence from semi-arid species. Journal of Ecology 82, 249–258.
The role of seed size in seedling establishment in dry soil conditions: experimental evidence from semi-arid species.Crossref | GoogleScholarGoogle Scholar |

Long RL, Gorecki MJ, Renton M, Scott JK, Colville L, Goggin DE, Commander LE, Westcott DA, Cherry H, Finch-Savage WE (2015) The ecophysiology of seed persistence: a mechanistic view of the journey to germination or demise. Biological Reviews of the Cambridge Philosophical Society 90, 31–59.
The ecophysiology of seed persistence: a mechanistic view of the journey to germination or demise.Crossref | GoogleScholarGoogle Scholar |

Milberg P, Andersson L, Thompson K (2000) Large-seeded species are less dependent on light for germination than small-seeded ones. Seed Science Research 10, 99–104.
Large-seeded species are less dependent on light for germination than small-seeded ones.Crossref | GoogleScholarGoogle Scholar |

O’Hara RB, Kotze DJ (2010) Do not log-transform count data. Methods in Ecology and Evolution 1, 118–122.
Do not log-transform count data.Crossref | GoogleScholarGoogle Scholar |

Osman KT (2013) Problem soils and their management. In ‘Soils: principles, properties and management’. pp. 161–174. (Springer: Dordrecht, Netherlands)

Peasley B (1995) ʻMacintyre River catchment: land management proposals for the integrated treatment and prevention of land degradation.ʼ (NSW Department of Conservation and Land Management: Inverell, NSW)

Perring MP, Standish RJ, Hobbs RJ (2013) Incorporating novelty and novel ecosystems into restoration planning and practice in the 21st century. Ecological Processes 2, 18
Incorporating novelty and novel ecosystems into restoration planning and practice in the 21st century.Crossref | GoogleScholarGoogle Scholar |

Prebble RE, Stirk GB (1980) Throughfall and stemflow on silverleaf ironbark (Eucalyptus melanophloia) trees. Australian Journal of Ecology 5, 419–427.
Throughfall and stemflow on silverleaf ironbark (Eucalyptus melanophloia) trees.Crossref | GoogleScholarGoogle Scholar |

R Core Team (2015) ‘R: a language and environment for statistical computing.’ (R Foundation for Statistical Computing: Vienna) Available at www.r-project.org. [Verified 18 November 2016]

Rab MA, Chandra S, Fisher PD, Robinson NJ, Kitching M, Aumann CD, Imhof M (2011) Modelling and prediction of soil water contents at field capacity and permanent wilting point of dryland cropping soils. Soil Research 49, 389–407.
Modelling and prediction of soil water contents at field capacity and permanent wilting point of dryland cropping soils.Crossref | GoogleScholarGoogle Scholar |

Reid N, Landsberg J (2000) Tree decline in agricultural landscapes: what we stand to lose. In ‘Temperate eucalypt woodlands in Australia: biology, conservation, management and restoration’. (Eds RJ Hobbs, CJ Yates) pp. 127–166. (Surrey Beatty: Sydney)

Reid N, Nadolny C, Banks V, O’Shea G, Jenkins B (2007) Causes of eucalypt tree decline in the Namoi Valley, NSW. Final report to Land and Water Australia, Project UNE 42. University of New England, Armidale, NSW.

Saatkamp A, Affre L, Baumberger T, Dumas P-j, Gasmi A, Gachet S, Arène F (2011) Soil depth detection by seeds and diurnally fluctuating temperatures: different dynamics in 10 annual plants. Plant and Soil 349, 331–340.
Soil depth detection by seeds and diurnally fluctuating temperatures: different dynamics in 10 annual plants.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXhsFKntb%2FN&md5=481a0d67944088da8bef0a842ed76ba0CAS |

Schütz W, Milberg P, Lamont BB (2002) Germination requirements and seedling responses to water availability and soil type in four eucalypt species. Acta Oecologica 23, 23–30.
Germination requirements and seedling responses to water availability and soil type in four eucalypt species.Crossref | GoogleScholarGoogle Scholar |

Shackelford N, Hobbs RJ, Burgar JM, Erickson TE, Fontaine JB, Laliberté E, Ramalho CE, Perring MP, Standish RJ (2013) Primed for change: developing ecological restoration for the 21st century. Restoration Ecology 21, 297–304.
Primed for change: developing ecological restoration for the 21st century.Crossref | GoogleScholarGoogle Scholar |

Spaargaren O (2008) Vertisols. In ‘Encyclopedia of soil science’. (Ed. W Chesworth) pp. 807–809. (Springer: Dordrecht, Netherlands)

St-Denis A, Messier C, Kneeshaw D (2013) Seed size, the only factor positively affecting direct seeding success in an abandoned field in Quebec, Canada. Forests 4, 500–516.
Seed size, the only factor positively affecting direct seeding success in an abandoned field in Quebec, Canada.Crossref | GoogleScholarGoogle Scholar |

Stefano JD (2002) River red gum Eucalyptus camaldulensis: a review of ecosystem processes, seedling regeneration and silvicultural practice. Australian Forestry 65, 14–22.
River red gum Eucalyptus camaldulensis: a review of ecosystem processes, seedling regeneration and silvicultural practice.Crossref | GoogleScholarGoogle Scholar |

Stoneman GL (1994) Ecology and physiology of establishment of eucalypt seedlings from seed: a review. Australian Forestry 57, 11–29.
Ecology and physiology of establishment of eucalypt seedlings from seed: a review.Crossref | GoogleScholarGoogle Scholar |

Stoneman GL, Dell B (1994) Emergence of Eucalyptus marginata (jarrah) from seed in Mediterranean-climate forest in response to overstorey, site, seedbed and seed harvesting. Australian Journal of Ecology 19, 96–102.
Emergence of Eucalyptus marginata (jarrah) from seed in Mediterranean-climate forest in response to overstorey, site, seedbed and seed harvesting.Crossref | GoogleScholarGoogle Scholar |

Thorburn PJ, Walker GR (1994) Variations in stream water uptake by Eucalyptus camaldulensis with differing access to stream water. Oecologia 100, 293–301.
Variations in stream water uptake by Eucalyptus camaldulensis with differing access to stream water.Crossref | GoogleScholarGoogle Scholar |

Watt LA (1972) Observations on the rate of drying and crust formation on the black soil in northwest New South Wales. Journal of the Soil Conservation Service of NSW 28, 41–50.

Watt L, Whalley R (1982a) Effect of sowing depth and seedling morphology on establishment of grass seedlings on cracking black earths. The Rangeland Journal 4, 52–60.
Effect of sowing depth and seedling morphology on establishment of grass seedlings on cracking black earths.Crossref | GoogleScholarGoogle Scholar |

Watt L, Whalley R (1982b) Establishment of small-seeded perennial grasses on black clay soils in north-western New South Wales. Australian Journal of Botany 30, 611–623.
Establishment of small-seeded perennial grasses on black clay soils in north-western New South Wales.Crossref | GoogleScholarGoogle Scholar |

Webb CO, Ackerly DD, McPeek MA, Donoghue MJ (2002) Phylogenies and community ecology. Annual Review of Ecology and Systematics 33, 475–505.
Phylogenies and community ecology.Crossref | GoogleScholarGoogle Scholar |

Weinberg A, Gibbons P, Briggs SV, Bonser SP (2011) The extent and pattern of Eucalyptus regeneration in an agricultural landscape. Biological Conservation 144, 227–233.
The extent and pattern of Eucalyptus regeneration in an agricultural landscape.Crossref | GoogleScholarGoogle Scholar |

Whalley R (1987) Dispersal unit and germination information on members of the Poaceae. In ‘Germination of Australian native plant seed’. (Ed. PJ Langkamp) pp. 207–210. (Inkata Press: Melbourne)

Xia Q, Ando M, Seiwa K (2016) Interaction of seed size with light quality and temperature regimes as germination cues in 10 temperate pioneer tree species. Functional Ecology 30, 866–874.
Interaction of seed size with light quality and temperature regimes as germination cues in 10 temperate pioneer tree species.Crossref | GoogleScholarGoogle Scholar |

Yates C, Hobbs R, Bell R (1994) Factors limiting the recruitment of Eucalyptus salmonophloia in remnant woodlands. I. Pattern of flowering, seed production and seed fall. Australian Journal of Botany 42, 531–542.
Factors limiting the recruitment of Eucalyptus salmonophloia in remnant woodlands. I. Pattern of flowering, seed production and seed fall.Crossref | GoogleScholarGoogle Scholar |

Yates C, Taplin R, Hobbs R, Bell R (1995) Factors limiting the recruitment of Eucalyptus salmonophloia in remnant woodlands. II. Postdispersal seed predation and soil seed reserves. Australian Journal of Botany 43, 145–155.
Factors limiting the recruitment of Eucalyptus salmonophloia in remnant woodlands. II. Postdispersal seed predation and soil seed reserves.Crossref | GoogleScholarGoogle Scholar |

Younger D, Gilmore J (1978) Studies with pasture grasses on the black cracking clays of the central highlands of Queensland. 2. Sowing methods. Tropical Grasslands 12, 163–169.