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Seed Germination and Seedling Emergence of Synedrella (Synedrella nodiflora) in a Tropical Environment

Published online by Cambridge University Press:  20 January 2017

Bhagirath S. Chauhan  and
David E. Johnson
Bhagirath S. Chauhan*
Affiliation:
Crop and Environmental Sciences Division, International Rice Research Institute, Los Baños, Philippines
David E. Johnson
Affiliation:
Crop and Environmental Sciences Division, International Rice Research Institute, Los Baños, Philippines
*
Corresponding author's E-mail: [email protected]
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Abstract

Synedrella is a tropical annual plant species of the family Asteraceae that is widely distributed in many crops in nearly 50 countries. Experiments were conducted to determine the influence of various environmental factors on seed germination and seedling emergence of synedrella. Germination response was greater at 30/20 C and 35/25 C than at 25/15 C fluctuating day/night temperatures. Light stimulated germination; however, a small proportion of after-ripened seeds germinated in the dark. Seedling emergence was greatest (96%) for seeds placed on the soil surface but declined with increased seed burial depth. No seedlings emerged from a depth of 4 cm. Seedling emergence and seedling dry matter declined with the addition of crop residue to the soil surface; however, higher quantities of residue than those normally found in low-yield systems were required to result in substantial reductions in emergence. Seed germination was tolerant of moderate salt concentrations (40 to 100 mM sodium chloride) and a broad range of pH (4 to 10) but was sensitive to low osmotic potentials (< −0.8 MPa). The information gained from this study could help predict the invasion potential of this species and could lead to improved management strategies.

Keywords

Synedrella, Synedrella nodiflora (L.) GaertnBurial depthemergencegermination lightresidue
Type
Weed Biology and Ecology
Information
Weed Science , Volume 57 , Issue 1 , February 2009 , pp. 36 - 42
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Baskin, C. C., Thompson, K., and Baskin, J. M. 2006. Mistakes in germination ecology and how to avoid them. Seed Sci. Res. 16:165–168.Google Scholar
Benvenuti, S. and Macchia, M. 1995. Hypoxia effect on buried weed seed germination. Weed Res. 35:343–351.Google Scholar
Benvenuti, S., Macchia, M., and Miele, S. 2001. Quantitative analysis of emergence of seedlings from buried weed seeds with increasing soil depth. Weed Sci. 49:528–535.Google Scholar
Boyd, N. S. and Van Acker, R. C. 2003. The effects of depth and fluctuating soil moisture on the emergence of eight annual and six perennial plant species. Weed Sci. 51:725–730.CrossRefGoogle Scholar
Chachalis, D. and Reddy, K. N. 2000. Factors affecting Campsis radicans seed germination and seedling emergence. Weed Sci. 48:212–216.Google Scholar
Chauhan, B. S., Gill, G., and Preston, C. 2006. Factors affecting seed germination of annual sowthistle (Sonchus oleraceus) in southern Australia. Weed Sci. 54:854–860.Google Scholar
Chauhan, B. S. and Johnson, D. E. 2008a. Germination ecology of two troublesome Asteraceae species of rainfed rice: Siam weed (Chromolaena odorata) and coat buttons (Tridax procumbens). Weed Sci. 56:567–573.Google Scholar
Chauhan, B. S. and Johnson, D. E. 2008b. Influence of environmental factors on seed germination and seedling emergence of eclipta (Eclipta prostrata) in a tropical environment. Weed Sci. 56:383–388.Google Scholar
Cook, L. 1939. A contribution to our information on grass burning. S. Afr. J. Sci. 36:270–282.Google Scholar
DiTommaso, A. 2004. Germination behavior of common ragweed (Ambrosia artemisiifolia) populations across a range of salinities. Weed Sci. 52:1002–1009.Google Scholar
Dyer, W. E. 1995. Exploiting weed seed dormancy and germination requirements through agronomic practices. Weed Sci. 43:498–503.Google Scholar
Greenway, H. and Munns, R. 1980. Mechanisms of salt tolerance in nonhalophytes. Annu. Rev. Plant Physiol. 31:149–190.Google Scholar
Holm, L., Doll, J., Holm, E., Pancho, J., and Herberger, J. 1997. World Weeds: Natural Histories and Distribution. New York John Wiley and Sons. 1,129 p.Google Scholar
Juliano, J. 1940. Viability of some Philippine weed seeds. Philippines Agriculturist. 29:313–326.Google Scholar
Kellman, M. C. 1974. The viable weed seed content of some tropical agricultural soils. J. Appl. Ecol. 11:669–677.CrossRefGoogle Scholar
Kellman, M. C. 1978. Microdistribution of viable weed seed in two tropical soils. J. Biogeogr. 5:291–300.CrossRefGoogle Scholar
Kemp, D. J. 1998. Oviposition behaviour of post-diapause Hypolimnas bolina (L.) (Lepidoptera : Nymphalidae) in tropical Australia. Aust. J. Zool. 46:451–459.CrossRefGoogle Scholar
Marks, M. K. and Akosim, C. 1984. Achene dimorphism and germination in three composite weeds. Trop. Agric. 61:69–73.Google Scholar
Michel, B. E. 1983. Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol. 72:66–70.Google Scholar
Mohler, C. L. and Calloway, M. B. 1992. Effects of tillage and mulch on the emergence and survival of weeds in sweet corn. J. Appl. Ecol. 29:21–34.Google Scholar
Rao, A. N., Johnson, D. E., Sivaprasad, B., Ladha, J. K., and Mortimer, A. M. 2007. Weed management in direct-seeded rice. Adv. Agron. 93:153–255.CrossRefGoogle Scholar
Roberts, E. H. and Totterdell, S. 1981. Seed dormancy in Rumex species in response to environmental factors. Plant Cell Environ. 4:97–106.CrossRefGoogle Scholar
Roder, W., Phengchanh, S., and Keoboulapha, B. 1995. Relationships between soil, fallow period, weeds, and rice yield in slash-and-burn systems of Laos. Plant Soil. 176:27–36.Google Scholar
Roder, W., Phengchanh, S., and Keoboulapha, B. 1997. Weeds in slash-and-burn rice fields in northern Laos. Weed Res. 37:111–119.CrossRefGoogle Scholar
Sanchez, P. A. 1976. Soil management in shifting cultivation areas. Pages 346–412. in. Properties and Management of Soils in the Tropics. Raleigh, NC John Wiley and Sons.Google Scholar
Sikirou, R. and Wydra, K. 2004. Persistence of Xanthomonas axonopodis pv. vignicola in weeds and crop debris and identification of Sphenostylis stenocarpa as a potential new host. Eur. J. Plant Pathol. 110:939–947.Google Scholar
Tanji, K. K. and Kielen, N. C. 2002. Agricultural Drainage Water Management in Arid and Semi-Arid Areas. FAO Irrigation and Drainage Paper 61. Rome, Italy Food and Agriculture Organization of the United Nations. 202 p. ftp://ftp.fao.org/docrep/fao/005/y4263e/y4263e11.pdf. Accessed: June 25, 2008.Google Scholar
Teasdale, J. R., Beste, C. E., and Potts, W. E. 1991. Response of weeds to tillage and cover crop residue. Weed Sci. 39:195–199.Google Scholar
Woolley, J. T. and Stoller, E. 1978. Light penetration and light-induced seed germination in soil. Plant Physiol. 61:597–600.Google Scholar