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Seed germination ecology of meadow knapweed (Centaurea × moncktonii) populations in New York State, USA

Published online by Cambridge University Press:  03 December 2020

Antonio DiTommaso Open the ORCID record for Antonio DiTommaso [Opens in a new window] ,
Lindsey R. Milbrath ,
Caroline A. Marschner ,
Scott H. Morris  and
Anna S. Westbrook
Antonio DiTommaso*
Affiliation:
Professor, Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
Lindsey R. Milbrath
Affiliation:
Research Entomologist, USDA-ARS, Robert W. Holley Center for Agriculture and Health, Ithaca, NY, USA
Caroline A. Marschner
Affiliation:
Research Technician, Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
Scott H. Morris
Affiliation:
Research Technician, Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
Anna S. Westbrook
Affiliation:
Graduate Student, Section of Soil and Crop Sciences, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
*
Author for correspondence: Antonio DiTommaso, 903 Bradfield Hall, Cornell University, Ithaca, NY14853. (E-mail: [email protected])
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Abstract

The introduced meadow knapweed (Centaurea × moncktonii C.E. Britton), a hybrid of black (Centaurea nigra L.) and brown (Centaurea jacea L.) knapweeds, is increasingly common in pastures, meadows, and waste areas across many U.S. states, including New York. We evaluated the effects of temperature, light, seed stratification, scarification, and population on percent germination in four experiments over 2 yr. Percent germination ranged from 3% to 100% across treatment combinations. Higher temperatures (30:20, 25:15, and sometimes 20:10 C day:night regimes compared with 15:5 C) promoted germination, especially when combined with the stimulatory effect of light (14:10 h L:D compared with continuous darkness). Under the three lowest temperature treatments, light increased percent germination by 15% to 86%. Cold-wet seed stratification also increased germination rates, especially at lower germination temperatures, but was not a prerequisite for germination. Scarification did not increase percent germination. Differences between C. × moncktonii populations were generally less significant than differences between temperature, light, and stratification treatments. Taken together, these results indicate that C. × moncktonii is capable of germinating under a broad range of environments, which may have facilitated this species’ range expansion in recent decades. However, C. × moncktonii also shows evidence of germination polymorphism: some seeds will germinate under suboptimal conditions, while others may remain dormant until the abiotic environment improves. Subtle differences in dormancy mechanisms and their relative frequencies may affect phenological traits like the timing of seedling emergence and ultimately shape the sizes and ranges of C. × moncktonii populations.

Keywords

Asteraceaehybridinvasive speciespasturesseed biologyseed dormancy
Type
Research Article
Information
Weed Science , Volume 69 , Issue 1 , January 2021 , pp. 111 - 118
Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of the Weed Science Society of America

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Footnotes

Associate Editor: Nathan S. Boyd, Gulf Coast Research and Education Center

References

Baskin, CC, Baskin, JM (2014) Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination. 2nd ed. San Diego, CA: Elsevier. 666 p Google Scholar
Benefield, CB, DiTomaso, JM, Kyser, GB, Tschohl, A (2001) Reproductive biology of yellow starthistle: maximizing late-season control. Weed Sci 49:83–90 CrossRefGoogle Scholar
Berube, DE, Myers, JH (1982) Suppression of knapweed invasion by crested wheatgrass in the dry interior of British Columbia. J Range Manage 35:459–461CrossRefGoogle Scholar
Bewley, JD, Black, M (1982) Dormancy. Pages 60–125 in Physiology and Biochemistry of Seeds in Relation to Germination: Viability, Dormancy, and Environmental Control. Berlin: SpringerCrossRefGoogle Scholar
Blair, AC, Blumenthal, D, Hufbauer, RA (2012) Hybridization and invasion: an experimental test with diffuse knapweed (Centaurea diffusa Lam.). Evol Appl 5:17–28 CrossRefGoogle Scholar
Blair, AC, Hufbauer, RA (2010) Hybridization and invasion: one of North America’s most devastating invasive plants shows evidence for a history of interspecific hybridization. Evol Appl 3:40–51 CrossRefGoogle ScholarPubMed
Clements, CD, Harmon, D, Young, JA (2010) Diffuse knapweed (Centaurea diffusa) seed germination. Weed Sci 58:369–373 CrossRefGoogle Scholar
Davis, ES (1990) Spotted knapweed (Centaurea maculosa L.) seed longevity, chemical control and seed morphology. Master’s thesis. Bozeman, MT: Montana State University. 109 pGoogle Scholar
Deming, WE (1964) Statistical Adjustment of Data. 2nd ed. New York: Dover. 261 pGoogle Scholar
DiTomaso, JM (2000) Invasive weeds in rangelands: species, impacts, and management. Weed Sci 48:255–265 CrossRefGoogle Scholar
Eckel, PM (2012) Centaurea x moncktonii C. E Britton, meadow or protean knapweed in the Niagara Frontier Region. Clintonia 27:5–7 Google Scholar
Eddleman, LE, Romo, JT (1988) Spotted knapweed germination response to stratification, temperature, and water stress. Can J Bot 66:653–657 CrossRefGoogle Scholar
Ellstrand, NC, Schierenbeck, KA (2000) Hybridization as a stimulus for the evolution of invasiveness in plants? Proc Natl Acad Sci USA 97:7043–7050 CrossRefGoogle ScholarPubMed
Fenner, M, Thompson, K (2005) The Ecology of Seeds. Cambridge: Cambridge University Press. 250 p CrossRefGoogle Scholar
Finch-Savage, WE, Leubner-Metzger, G (2006) Seed dormancy and the control of germination. New Phytol 171:501–523 CrossRefGoogle ScholarPubMed
Fletcher, RA, Renney, AJ (1963) A growth inhibitor found in Centaurea spp. Can J Plant Sci 43:475–481 CrossRefGoogle Scholar
Garcia-Jacas, N, Uysal, T, Romashchenko, K, Suárez-Santiago, VN, Ertuğrul, K, Susanna, A (2006) Centaurea revisited: a molecular survey of the Jacea group. Ann Bot 98:741–753 CrossRefGoogle ScholarPubMed
Hardy, OJ, de Loose, M, Vekemans, X, Meerts, P (2001) Allozyme segregation and inter-cytotype reproductive barriers in the polyploid complex Centaurea jacea . Heredity 87:136–145 CrossRefGoogle ScholarPubMed
Harris, P, Cranston, R (1979) An economic evaluation of control methods for diffuse and spotted knapweed in western Canada. Can J Plant Sci 59:375–382 CrossRefGoogle Scholar
Hierro, JL, Eren, Ö, Khetsuriani, L, Diaconu, A, Török, K, Montesinos, D, Andonian, K, Kikodze, D, Janoian, L, Villarreal, D, Estanga-Mollica, ME, Callaway, RM (2009) Germination responses of an invasive species in native and non-native ranges. Oikos 118:529–538 CrossRefGoogle Scholar
Hovick, SM, Whitney, KD (2014) Hybridisation is associated with increased fecundity and size in invasive taxa: meta-analytic support for the hybridisation-invasion hypothesis. Ecol Lett 17:1464–1477 CrossRefGoogle ScholarPubMed
Imbert, E (2006) Dispersal by ants in Centaurea corymbosa (Asteraceae): what is the elaiosome for? Plant Species Biol 21:109–117 CrossRefGoogle Scholar
Joley, DB, Maddox, DM, Schoenig, SE, Mackey, BE (2003) Parameters affecting germinability and seed bank dynamics in dimorphic achenes of Centaurea solstitialis in California. Can J Bot 81:993–1007 CrossRefGoogle Scholar
Joley, DB, Schoenig, SE, Casanave, KA, Maddox, DM, Mackey, BE (1997) Effect of light and temperature on germination of dimorphic achenes of Centaurea solstitialis in California. Can J Bot 75:2131–2139 CrossRefGoogle Scholar
Kahmen, S, Poschlod, P (2008) Does germination success differ with respect to seed mass and germination season? Experimental testing of plant functional trait responses to grassland management. Ann Bot 101:541–548 CrossRefGoogle ScholarPubMed
Kartesz, JT (2014) BONAP’s North American Plant Atlas. http://bonap.net/napa. Accessed: August 25, 2020Google Scholar
Keil, DJ, Ochsmann, J (2006) Centaurea. Pages 52, 57, 58, 67, 83, 84, 96, 171, 172, 176–178, 181–194 in Flora of North America Editorial Committee, ed. Flora of North America North of Mexico. New York: Flora of North America AssociationGoogle Scholar
Kucera, B, Cohn, MA, Leubner-Metzger, G (2005) Plant hormone interactions during seed dormancy release and germination. Seed Sci Res 15:281–307 CrossRefGoogle Scholar
Lachmuth, S, Molofsky, J, Milbrath, L, Suda, J, Keller, SR (2019) Associations between genomic ancestry, genome size and capitula morphology in the invasive meadow knapweed hybrid complex (Centaurea × moncktonii) in eastern North America. AoB Plants 11, 10.1093/aobpla/plz055 Google Scholar
Larson, L, Kiemnec, G (1997) Differential germination by dimorphic achenes of yellow starthistle (Centaurea solstitialis L.) under water stress. J Arid Environ 37:107–114 CrossRefGoogle Scholar
Lesica, P, Shelly, JS (1996) Competitive effects of Centaurea maculosa on the population dynamics of Arabis fecunda . Bull Torrey Bot Club 123:111–121 CrossRefGoogle Scholar
Luna, B, Pérez, B, Céspedes, B, Moreno, JM (2008) Effect of cold exposure on seed germination of 58 plant species comprising several functional groups from a mid-mountain Mediterranean area. Écoscience 15:478–484 CrossRefGoogle Scholar
Milberg, P, Andersson, L (1998) Does cold stratification level out differences in seed germinability between populations? Plant Ecol 134:225–234 CrossRefGoogle Scholar
Milbrath, LR, Biazzo, J (2020) Demography of meadow and spotted knapweed populations in New York. Northeast Nat 27:485–501 CrossRefGoogle Scholar
Miller, TW, Lucero, C (2014) Meadow knapweed (Centaurea debeauxii) response to herbicides and mechanical control. Invasive Plant Sci Manag 7:503–510CrossRefGoogle Scholar
Newman, EI (1963) Factors controlling the germination date of winter annuals. J Ecol 51:625–638 CrossRefGoogle Scholar
Nolan, DG, Upadhyaya, MK (1988) Primary seed dormancy in diffuse and spotted knapweed. Can J Plant Sci 68:775–783 CrossRefGoogle Scholar
Oliveira, TGS, Garcia, QS (2019) Germination ecology of the perennial herb Xyris longiscapa: inter-annual variation in seed germination and seasonal dormancy cycles. Seed Sci Res 29:179–183 CrossRefGoogle Scholar
Pitcairn, MJ, Young, JA, Clements, CD, Balciunas, JOE (2002) Purple starthistle (Centaurea calcitrapa) seed germination. Weed Technol 16:452–456CrossRefGoogle Scholar
Qaderi, MM, Lynch, AL, Godin, VJ, Reid, DM (2013) Single and interactive effects of temperature, carbon dioxide, and watering regime on the invasive weed black knapweed (Centaurea nigra). Écoscience 20:328–338CrossRefGoogle Scholar
Radosevich, SR, Holt, JS, Ghersa, CM (2007) Ecology of Weeds and Invasive Plants: Relationship to Agriculture and Natural Resource Management. 3rd ed. Hoboken, NJ: Wiley. 453 p CrossRefGoogle Scholar
Riba, M, Rodrigo, A, Colas, B, Retana, J (2002) Fire and species range in Mediterranean landscapes: an experimental comparison of seed and seedling performance among Centaurea taxa. J Biogeogr 29:135–146 CrossRefGoogle Scholar
Roché, CT, Roché, BF Jr (1988) Distribution and amount of four knapweed (Centaurea L.) species in eastern Washington. Northwest Sci 62:242–253 Google Scholar
Roché, CT, Roché, BF Jr (1991) Meadow knapweed invasion in the Pacific Northwest, USA and British Columbia, Canada. Northwest Sci 65:53–61 Google Scholar
Roché, CT, Thill, DC, Shafii, B (1997) Reproductive phenology in yellow starthistle (Centaurea solstitialis). Weed Sci 45:763–770 Google Scholar
Salisbury, EJ (1929) The biological equipment of species in relation to competition. J Ecol 17:197–222 CrossRefGoogle Scholar
Schirman, R (1981) Seed production and spring seedling establishment of diffuse and spotted knapweed. J Range Manage 34:45–47 CrossRefGoogle Scholar
Sheley, RL, Jacobs, JS, Carpinelli, MF (1998) Distribution, biology, and management of diffuse knapweed (Centaurea diffusa) and spotted knapweed (Centaurea maculosa). Weed Technol 12:353–362 CrossRefGoogle Scholar
Sheley, RL, Larson, LL (1996) Emergence date effects on resource partitioning between diffuse knapweed seedlings. J Range Manage 49:241–244 CrossRefGoogle Scholar
Silvertown, J (1980) Leaf-canopy-induced seed dormancy in a grassland flora. New Phytol 85:109–118 CrossRefGoogle Scholar
Soons, MB, Heil, GW (2002) Reduced colonization capacity in fragmented populations of wind-dispersed grassland forbs. J Ecol 90:1033–1043 CrossRefGoogle Scholar
Spears, BM, Rose, ST, Belles, WS (1980) Effect of canopy cover, seeding depth, and soil moisture on emergence of Centaurea maculosa and C. diffusa . Weed Res 20:87–90 CrossRefGoogle Scholar
Thorpe, AS, Massatti, R, Giles, D (2009) Controlling Meadow Knapweed with Manual Removal, Mulching, and Seeding. Corvallis, OR: Institute for Applied Ecology. 22 p Google Scholar
[USDA-NRCS] U.S. Department of Agriculture–Natural Resources Conservation Service (2020) USDA PLANTS Database. https://plants.usda.gov/java. Accessed: August 24, 2020 Google Scholar
Viegi, L, Vangelisti, R, Pacini, E (2003) The achene pappi and elaisomes of Centaurea L.: dispersal and germination in some Italian species. Isr J Plant Sci 51:45–54 CrossRefGoogle Scholar
Vilà, M, Weber, E, Antonio, CM (2000) Conservation implications of invasion by plant hybridization. Biol Invasions 2:207–217 CrossRefGoogle Scholar
Watson, AK, Renney, AJ (1974) The biology of Canadian weeds: 6. Centaurea diffusa and C. maculosa . Can J Plant Sci 54:687–701 CrossRefGoogle Scholar
Weldy, T, Werier, D, Nelson, A (2020) New York Flora Atlas. Albany, NY: New York Flora Association. http://newyork.plantatlas.usf.edu. Accessed: August 25, 2020Google Scholar
White, AL, Boutin, C, Dalton, RL, Henkelman, B, Carpenter, D (2009) Germination requirements for 29 terrestrial and wetland wild plant species appropriate for phytotoxicity testing. Pest Manag Sci 65:19–26 CrossRefGoogle ScholarPubMed
Winston, R, Schwarzlander, M, Randall, CB, Peardon, R (2012) Biology and biological control of knapweeds. FHTET-2011-05. Morgantown, WV: USDA Forest Service, Forest Health Technology Enterprise Team. 139 pGoogle Scholar
Young, JA, Clements, CD, Pitcairn, MJ, Balciunas, J, Enloe, S, Turner, C, Harmon, D (2005) Germination-temperature profiles for achenes of yellow starthistle (Centaurea solstitialis). Weed Technol 19:815–823 CrossRefGoogle Scholar
Young, JA, Evans, RA, Eckert, RE (1969) Population dynamics of downy brome. Weed Sci 17:20–26 CrossRefGoogle Scholar
Zimdahl, RL (2007) Weed-Crop Competition: A Review. 2nd ed. Ames, IA: Wiley. 235 p Google Scholar