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CROP DEVELOPMENT AND ROOT DISTRIBUTION IN LESSER YAM (DIOSCOREA ESCULENTA): IMPLICATIONS FOR FERTILIZATION

Published online by Cambridge University Press:  01 April 2008

MARIE-VIANNEY MELTERAS ,
VINCENT LEBOT ,
COLIN J. ASHER  and
JANE N. O'SULLIVAN
MARIE-VIANNEY MELTERAS
Affiliation:
Vanuatu Agricultural Research and Training Centre, PO Box 231, Luganville, Espiritu Santo, Vanuatu
VINCENT LEBOT
Affiliation:
CIRAD, PO Box 946, Port Vila, Vanuatu
COLIN J. ASHER
Affiliation:
School of Land and Food Sciences, The University of Queensland, Brisbane 4072, Australia
JANE N. O'SULLIVAN*
Affiliation:
School of Land and Food Sciences, The University of Queensland, Brisbane 4072, Australia
*
§Corresponding author: j.osullivan@uq.edu.au
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Summary

A growth analysis study involving monthly excavation of Dioscorea esculenta plants revealed that the root system developed fully in the period before tuber initiation, and extended radially for a distance between 2.3 and 4.3 m. Primary roots initially remained in the top 10 cm of the soil profile, but descended to approximately 30 cm near their full extension. Tuber number increased from initiation around 21 weeks after planting (WAP) until maximum vine growth was reached around 33 WAP, but tuber dry weight continued to increase throughout the senescence period of the vine, to 45 WAP. Tubers lost dry matter but not fresh weight during dormancy in the soil, to 55 WAP. The results indicate that a distance of at least 4.5 m is required to separate experimental fertilizer treatments, and that post-establishment burial of fertilizers around the mound or ridge risks damage to roots near their base, while inter-row application is accessible to roots and may be preferable.

Type
Research Article
Information
Experimental Agriculture , Volume 44 , Issue 2 , April 2008 , pp. 209 - 221
Copyright
Copyright © Cambridge University Press 2008

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References

REFERENCES

Bourke, R. M. and Vlassak, V. (2004). Estimates of Food Crop Production in Papua New Guinea. Land Management Group, The Australian National University, Canberra.Google Scholar
Budelman, A. (1990). Woody legumes as live support systems in yam cultivation 1. The tree-crop interface. Agroforestry Systems 10:47–59.CrossRefGoogle Scholar
Chapman, T. (1965). Some investigations into factors limiting yields of the White Lisbon Yam (Dioscorea alata L.) under Trinidad conditions. Tropical Agriculture 42:145–151.Google Scholar
Diby, L. N., Carsky, R., Assa, A., Tra, T. B., Girardin, O. and Frossard, E. (2004). Understanding soil factors limiting the potential yield of yam. In Proceedings of the 4th International Crop Science Congress, Brisbane Australia 26 September–1 October 2004, http//www.cropscience.org.au/icsc2004/poster/2/3/322_dibyl.htm.Google Scholar
Enyi, B. A. A. (1972a). The effects of seed size and spacing on growth and yield of Lesser Yam (Dioscorea esculenta). Journal of Agricultural Science, Cambridge 78:215–225.CrossRefGoogle Scholar
Enyi, B. A. A. (1972b). Effect of staking, nitrogen and potassium on growth and development of Lesser Yam (Dioscorea esculenta). Annals of Applied Biology 72:211–219.CrossRefGoogle Scholar
Ferguson, T. U. (1977). Tuber development in yam; physiological and agronomic implications. In Proceedings of the 3rd International Symposium on Tropical Roots Crops, Ibadan Nigeria, 72–77.Google Scholar
Irizarry, H. and Rivera, E. (1985). Nutrient uptake and dry matter production by intensively managed yams grown in an Ultisol. Journal of Agriculture of the University of Puerto Rico 69:1–9.Google Scholar
Irizarry, H., Goenaga, R. and Chardon, U. (1995). Nutrient uptake and dry matter yield in the ‘Gunung’ yam (Dioscorea alata) grown on an Ultisol without vine support. Journal of Agriculture of the University of Puerto Rico 79:121–130.Google Scholar
Maduakor, H. O., Lal, R. and Opara-Nadi, O. A. (1984). Effects of methods of seedbed preparation and mulching on the growth and yield of White Yam (Dioscorea rotundata) on an ultisol South-East Nigeria. Field Crops Research 9:119–130.CrossRefGoogle Scholar
Malinowski, B. (1922). Argonauts of the Western Pacific. London: Routledge and Kegan Paul.Google Scholar
Melteras, M., O'Sullivan, J., Asher, C. and Lebot, V. (2004). Comparison of soil tests with plant response to nutrients in selected soils of Vanuatu. Proceedings of the 4th International Crop Science Congress, Brisbane Australia, September 2004. Online at www.cropscience.org.au/icsc2004/poster/2/5/3/1389_melterasm.htmGoogle Scholar
Melteras, M.-V. (2005). Soil fertility as a factor affecting the production of yams Dioscorea spp. in Vanuatu. MPhil Thesis, School of Land and Food Sciences, University of Queensland, Australia.Google Scholar
Njoku, E., Nwoke, F. I. O., Okonkwo, S. N. C. and Oyolu, C. (1984). Pattern of growth and development in Discorea rotundata Poir. Tropical Agriculture 61:17–20.Google Scholar
Nwinyi, S. C. O. and Enwezor, W. O. (1985). Evaluation of fertilizer placement methods for white yam (Dioscorea rotundata). Experimental Agriculture 21:73–78.CrossRefGoogle Scholar
Nwoke, F. I. O., Njoku, E., and Okonkwo, S. N. C. (1977). The effect of size of seed yams on yield of individual plants of Dioscorea rotundata. In Proceedings of the 3rd International Symposium on Tropical Roots Crops, Ibadan Nigeria.Google Scholar
Nwoke, F. I. O. and Okonkwo, S. N. C. (1978). Effect of periodic removal of mother tubers on yield of Dioscorea rotundata. Experimental Agriculture 14:145–150.CrossRefGoogle Scholar
Obigbesan, G. O. (1981). Nutrient requirements of yams (Dioscorea species). Agricultural Research Bulletin Vol 2 No 1, Faculty of Agriculture and Forestry University of Ibadan, Nigeria.Google Scholar
Okezie, C. E., Okonkwo, S. N. C. and Nweke, F. I. (1986). Field studies on the growth pattern of Dioscorea rotundata Poir. propagated by seed. Tropical Agriculture 63:22–24.Google Scholar
Okigbo, B. N. (1977). Effects of cultivations and heights and directions of staking on yield and general performance of eight yam cultivars. In Proceedings of the 3rd International Symposium on Tropical Roots Crops, Ibadan, Nigeria, 347–358.Google Scholar
Okoli, O. O. (1980). Dry matter accumulation and tuber sprouting in yams Dioscorea spp. Experimental Agriculture 16:161–167.CrossRefGoogle Scholar
Onwueme, I. C. and Haverkort, A. J. (1991). Modelling growth and productivity of yams (Dioscorea spp): prospects and problems. Agricultural Systems 36:351–367.CrossRefGoogle Scholar
O'Sullivan, J. N. (2008). Root distribution of yam (Dioscorea alata) determined by strontium tracer. Experimental Agriculture 44: 223–233.CrossRefGoogle Scholar
O'Sullivan, J. N. and Ernest, J. (2007). Nutrient deficiencies in lesser yam (Dioscorea esculenta) characterized using constant-water-table sand culture. Journal of Plant Nutrition and Soil Science 170, 273–282.CrossRefGoogle Scholar
O'Sullivan, J. N. and Jenner, R. (2006). Nutrient deficiencies in Greater Yam and their effects on leaf nutrient concentrations. Journal of Plant Nutrition 29: 1663–1674.CrossRefGoogle Scholar
Oyolu, C. (1982). Inherent constraints to high productivity and low production cost in yam Discorea spp. with special reference to Discorea rotundata Poir. In Yams Ignames, 147–160 (Eds Miege, J. and Lyonga, S. N.). Oxford University Press, New York.Google Scholar
Sobulo, R. A. (1972a). Studies on white yam (Dioscorea rotundata) I. Growth analysis. Experimental Agriculture 8:99–106.CrossRefGoogle Scholar
Sobulo, R. A. (1972b). Studies on white yam (Dioscorea rotundata) II. Changes in nutrient content with age. Experimental Agriculture 8:107–115.CrossRefGoogle Scholar
Sobulo, R. A. (1972c). Studies on white yam (Dioscorea rotundata) III. Foliar analysis for nitrogen nutrition. Experimental Agriculture 8:271–279.CrossRefGoogle Scholar
Tedder, M. M. and Tedder, J. L. O. (1974). Yams, a description of their cultivation on Guadalcanal in the Solomon Islands. SPC Technical Paper No. 169, South Pacific Commission, Noumea.Google Scholar
Weightman, B. (1989). Agriculture in Vanuatu, a Historical Review. British Friends of Vanuatu.Google Scholar
Vander Zaag, P., Fox, R. L., Kwakye, P. K. and Obigbesan, G. O. (1980). The phosphorus requirement of Yam (Discorea spp.). Tropical Agriculture 57: 97–106.Google Scholar