Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-16T17:23:48.977Z Has data issue: false hasContentIssue false
  • English
  • Français

Factors affecting Campsis radicans seed germination and seedling emergence

Published online by Cambridge University Press:  20 January 2017

Demosthenis Chachalis  and
Krishna N. Reddy
Krishna N. Reddy
Affiliation:
Southern Weed Science Research Unit, USDA-ARS, P.O. Box 350, Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

The effects of environmental factors on germination and emergence of Campsis radicans seeds were examined in laboratory and greenhouse experiments. Campsis radicans pods produced numerous, papery, and small seeds (696 seeds/pod; 4 mg/seed). Seeds exhibited dormancy that was relieved (74% germination) after 2 wk of prechilling. Fluctuating temperatures and a 12-h photoperiod were required for maximum germination. Optimum conditions for C. radicans seed germination (74%) were 35/25 C (day/night, 12/12 h) with a 12-h photoperiod. Temperatures below 25/15 C or above 40/30 C were unfavorable for germination. Germination in constant temperatures or in continuous darkness was less than 15%. More than 59% of C. radicans seeds germinated at pH 5 to 9, but at pH 4 or 10 seed germination was totally inhibited. Germination was totally inhibited at osmotic stress higher than −0.2 MPa. Germination was 60% at 40 mM NaCl and 20% at 160 mM NaCl. Emergence was maximum (68%) for seeds that were placed on the soil surface, but no seedlings emerged from a soil depth at 4 cm. About 10% of seeds were still viable even after 20 wk of prechilling. Each pod contained about 700 seeds and each plant produced 20 to 40 pods. These results suggest that the spread potential of C. radicans by seeds would be at least 1,400 to 2,800 seeds plant−1. However, only seeds near the soil surface would be able to germinate.

Keywords

TrumpetcreeperCampsis radicans (L.) Seem. ex Bureau CMIRAOsmotic potentialpHphotoperiodplanting depthsalt stresstemperatureCMIRA
Type
Research Article
Information
Weed Science , Volume 48 , Issue 2 , April 2000 , pp. 212 - 216
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Balyan, R. S. and Bhan, V. M. 1986. Germination of horse purslane (Trianthema portulacastrum) in relation to temperature, storage conditions, and seedling depths. Weed Sci. 34:513–515.Google Scholar
Benech Arnold, R. L., Ghersa, C. M., Sanchez, R. A., and Insausti, P. 1990. Temperature effects on dormancy release and germination rate in Sorghum halepense (L.) Pers. seeds: a quantitative analysis. Weed Res. 30:81–89.Google Scholar
Benvenuti, S. 1995. Soil light penetration and dormancy of Jimsonweed (Datura stramonium) seeds. Weed Sci. 43:389–393.CrossRefGoogle Scholar
Bewley, J. D. and Black, M. 1982. The release from dormancy. Pages 127–198 In Bewley, J. D. and Black, M., eds. Physiology and Biochemistry of Seeds. Berlin: Springer-Verlag.Google Scholar
Bonner, F. T. 1974. Campsis radicans (L.) Seem, common C. radicans . Pages 260–261 In Schopmener, C. S., ed. Seeds of Woody Plants in the United States. Washington, DC: U.S. Department of Agriculture, Forest Service Handbook No. 450.Google Scholar
Dowler, C. C. 1998. Weed survey-southern states broadleaf crops subsection. Proc. South. Weed. Sci. Soc. 51:299–313.Google Scholar
Egley, G. H. and Duke, S. O. 1985. Physiology of weed seed dormancy and germination. Pages 27–64 In Duke, S. O., ed. Weed Physiology. Volume I. Reproduction and Ecophysiology. Boca Raton, FL: CRC Press.Google Scholar
Elmore, C. D. 1984. Perennial vines in the Delta of Mississippi. Mississippi State, MS: Mississippi State University, Mississippi Agricultural and Forestry Experiment Station Bull. 927. 9 p.Google Scholar
Evetts, L. L. and Burnside, O. C. 1972. Germination and seedling development of common milkweed and other species. Weed Sci. 20:371–378.Google Scholar
Jain, R. and Singh, M. 1989. Factors affecting goatweed (Scoparia dulcis) seed germination. Weed Sci. 37:766–770.Google Scholar
[ISTA] International Seed Testing Association. 1985 International rules for seed testing. Seed Sci. Technol. 13:307–513.Google Scholar
Miles, J. E., Nishimoto, R. K., and Kawabata, O. 1996. Diurnally alternating temperatures stimulate sprouting of purple nutsedge (Cyperus rotundus) tubers. Weed Sci. 44:122–125.Google Scholar
Nishimoto, R. K. and McCarty, L. B. 1997. Fluctuating temperatures and light influence seed germination of goosegrass (Eleusine indica). Weed Sci. 45:426–429.Google Scholar
Popay, A. I. and Roberts, E. H. 1970. Factors involved in the dormancy and germination of Capsella bursa-pastoris (L.) Medik. and Senecio vulgaris (L.) J. Ecol. 58:103–121.Google Scholar
Reddy, K. N. and Singh, M. 1992. Germination and emergence of hairy beggarticks (Bidens pilosa). Weed Sci. 40:195–199.CrossRefGoogle Scholar
Rubin, B. and Benjamin, A. 1984. Solar heating of the soil: involvement of environmental factors in the weed control process. Weed Sci. 32:138–142.Google Scholar
Shaw, D. R., Mack, R. E., and Smith, C. A. 1991. Redvine (Brunnichia ovata) germination and emergence. Weed Sci. 39:33–36.CrossRefGoogle Scholar
Singh, M. and Achhireddy, N. R. 1984. Germination and ecology of milk-weedvine (Morrenia odorata). Weed Sci. 32:781–785.Google Scholar
Soteres, J. K. and Murray, D. S. 1981. Germination and development of honeyvine milkweed (Ampelamus albidus) seeds. Weed Sci. 29:625–628.CrossRefGoogle Scholar
Steuter, A. A., Mozafar, A., and Goodin, J. R. 1981. Water potential of aqueous polyethylene glycol. Plant. Physiol. 67:64–67.Google Scholar
Taylorson, R. B. 1987. Environmental and chemical manipulation of weed seed dormancy. Rev. Weed Sci. 3:135–154.Google Scholar
Wilson, R. G. Jr. 1979. Germination and seedling development of Canada thistle (Cirsium arvense). Weed Sci. 27:146–151.Google Scholar