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Influence of Planting Date and Microsite on Weed Dynamics in Sugarcane in Sri Lanka

Published online by Cambridge University Press:  20 January 2017

W. R. G. Witharama ,
Robert E. L. Naylor  and
G. P. Whytock
W. R. G. Witharama
Affiliation:
Sugar Cane Research Institute, Uda-Walawe, Sri Lanka
Robert E. L. Naylor*
Affiliation:
Agriculture Department, Aberdeen University, Aberdeen, AB24 5UA, U.K.
G. P. Whytock
Affiliation:
SAC Aberdeen, Craibstone Estate, Bucksburn, Aberdeen, AB21 9YA, U.K.
*
Corresponding author's E-mail: reln@abdn.ac.uk
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Abstract

Experiments were conducted in Sri Lanka to compare weed seedling emergence in three sugarcane plots of 0.1 ha planted in October 1995, January 1996, and April 1996. In each plot, weed seedling emergence was monitored for 20 wk in five permanent quadrats on each of three microsites: on ridges, in furrows, and on adjacent fallow land. Soil moisture (0 to 5 cm) and soil temperature (at 2.5 cm) were also recorded. Only crowfootgrass, swamp millet, and guineagrass (all grasses) occurred in all nine planting time-by-microsite combinations. About half of all seedlings emerging over the three planting times were swamp millet, and the next most frequent species was tropic ageratum. The composition of the emerged flora was similar on ridges and in furrows, but more seedlings emerged in the furrows than on the ridges. The highest number of emerged seedlings and of species occurred on adjacent fallow land. The major factor influencing seedling emergence appeared to be soil moisture.

Keywords

Crowfootgrass, Dactyloctenium aegyptium (L.) Willd. DTTAEguineagrass, Panicum maximum Jacq. PANMAswamp millet, Isachne globosa (Thunb.) O.Kuntze ICHGLtropic ageratum, Ageratum conyzoides L. AGECOsugarcane, Saccharum officinarum L. SACOREmergencerainfallsoil moisturetemperaturehydrothermal time
Type
Research Article
Information
Weed Science , Volume 55 , Issue 1 , February 2007 , pp. 23 - 29
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Albrecht, H. and Forster, F. M. 1996. The weed seed bank in a landscape segment in southern Bavaria, I: seed content, species composition, and spatial variability. Vegetatio. 125:1–10.Google Scholar
Arachchi, D. H. M., Naylor, R. E. L., and Bingham, I. J. 1999. A thermal time analysis of ageing of maize (Zea mays L.) seed can account for reduced germination in hot moist soil. Field Crops Res. 63:159–167.Google Scholar
Causton, D. R. 1988. Introduction to vegetation analysis. London Unwin Hyman. 104.Google Scholar
Galinato, M. I. and Van Der Valk, A. G. 1986. Seed germination trials of annuals and emergents recruited during drawdowns in the Delta Marsh, Manitoba, Canada. Aquat. Bot. 26:89–102.CrossRefGoogle Scholar
Gauch, H. G. 1982. Multivariate analysis in community ecology. Cambridge, U.K. Cambridge University Press. 298.Google Scholar
Grime, J. P., Mason, G., Curtis, A. V., Rodman, J., Band, S. R., Mowforth, M. A. G., Neal, A. M., and Shaw, S. 1981. A comparative study of germination characteristics in a local flora. J. Ecol. 69:1017–1059.Google Scholar
Grundy, A. C. and Jones, N. E. 2002. What is the weed seed bank? 39–62. in Naylor, R.E.L., ed. Weed Management Handbook. 9th ed. Oxford, U.K.: Blackwell Science.Google Scholar
Harper, J. L. 1977. Population Biology of Plants. London, U.K. Academic Press. 79.Google Scholar
King, L. 1966. Weeds of the World: Biology and Control. London Leonard Hill. 61.Google Scholar
Marks, M. K. 1983a. Timing of seedling emergence and reproduction in some tropical dicotyledonous weeds. Weed Res. 23:325–332.CrossRefGoogle Scholar
Marks, M. K. 1983b. Periodicity of seedling emergence in 6 monocotyledonous weeds of southeastern Nigeria. Acta Oecol. Oecol. Appl. 4:75–85.Google Scholar
Milton, S. J. 1995. Spatial and temporal patterns in the emergence and survival of seedlings in arid Karoo shrubland. J. Appl. Ecol. 32:145–156.Google Scholar
Mullins, C. E., Townend, J., Mtakwa, P. W., Payne, C. A., Cowan, G., Simmonds, L. P., Daamen, C. C., Dunbabin, T., and Naylor, R. E. L. 1996. Emerge—Users Guide: A Model to Predict Crop Emergence in the Semi-Arid Tropics. Aberdeen, U.K. Aberdeen University. 85.Google Scholar
Payne, R. W. 1987. GENSTAT 5 Reference Manual. Oxford, U.K. Numerical Algorithms Group.Google Scholar
Peng, S. Y. 1984. The Biology and Control of Weeds in Sugarcane. New York Elsevier Science. 336.Google Scholar
Roberts, H. A. 1981. Seed banks in soil. Adv. Appl. Biol. 6:1–55.Google Scholar
Roberts, H. A. and Dawkins, P. A. 1967. Effect of cultivation on the numbers of viable weed seeds in soil. Weed Res. 4:296–307.Google Scholar
Roberts, H. A. and Feast, P. M. 1973. Emergence and longevity of seeds of annual weeds in cultivated and undisturbed soil. Weed Res. 12:316–324.Google Scholar
[SRI] Sugarcane Research Institute 1991. Methods of Sugarcane Cultivation. Uda-Walawe, Sri Lanka Sugarcane Research Institute. 141–150.Google Scholar
Thakar, C. and Singh, H. 1954. Nilkalami (Ipomoea hederacea), a menace to sugarcane. Hortic. Abs. 24:530.Google Scholar
Witharama, W. R. G. 1988. Alley Cropping Under Gliricidia and Leucaena in Mahaweli System C. , Peradeniya, Sri Lanka University of Peradeniya. 85.Google Scholar
Witharama, W. R. G. 1998. Studies on weed populations in sugarcane in Sri Lanka. , Aberdeen, Scotland University of Aberdeen. 212.Google Scholar