Effects of Different Planting Densities and Nitrogen Doses on Yield and Quality Properties of Taro (Colocasia Esculenta var. Esculenta)

This study was conducted to determine the effects three of planting densities (100 cm x 30 cm, 100 cm x 40 cm, 100 cm x 50 cm,) and three nitrogen doses (100 kg/ha, 175 kg/ha, 250 kg/ha,) on yield and quality of Taro under Mut/Mersin(Icel)/Turkey ecological conditions between April-November in 2014. The cormels were planted on April 1st, 2014. The experiment was carried out randomized complete split plots in block design with three replications. Harvest was done on November 1st, 2014. The average cormel weight was affected significantly by planting densities and nitrogen doses. When planting spaces was increased, the average corm weight was decreased. When nitrogen doses were increased, the average corm weight was increased. The maximum corm weight (295,87 g) was obtained from 100 cm x 40 cm at planting density and 250 kg/ha nitrogen dose. The marketable yield was affected significantly by planting densities, while it was not affected by nitrogen doses except control. When planting spaces was increased, the marketable yield was decreased. When nitrogen doses were increased, the marketable yield was not increased. The maximum marketable yield (7,93 t/ha) was obtained from 100 cm x 30 cm at planting density and 175 kg/ha nitrogen dose. The cormels number per plant was not affected significantly by planting densities and nitrogen doses. The maximum cormels number per plant (7,98 per plant) was obtained from 100 cm x 40 cm at planting density and control application.

Keywords:

Taro, planting density, nitrogen doses yield, quality properties,

PDF

___

[1] Anonim, 2017. FAOSTAT-Agriculture, www.faostat.fao.org, Visiting: 02.07.2017.
[2] Purseglove, J.W. (1972) Tropical Crops. Monocotyledons. Longman London.
[3] Gohl, B.1981. Tropical Foods. Food and Agriculture Organization. FAO Ani. Pro. and Health Series, 12, 314, Rome.
[4] Şen, M., Akgül, A., Özcan,M. 1999. Gölevez [Colocasia Esculenta (L.)Schott] Yumrusunun Fiziksel ve Kimyasal Özellikleri İle Kızartma ve Püreye İşlenmesi,Turkish Journal of Agriculture and Forestry.Vol.25,Number 6,P:427-432.TÜBİTAK 2001.Ankara.
[5] Catherwood, D.J., Savage, G.P., Mason, S.M., Scheffer, J.J.C. and Douglas, J.A., 2007, Oxalatecontent of Cormels of Japanese Taro (Colocasia Esculenta (L.) Shoot) and the Effect of Cooking. Journal of Food Composition and Analysis, 20: 147-151.
[6] Aboubakar, Y.N., Njintang, J.S. and Mboufung C.M.F., 2008, Physicochemical, thermal Properties and Mi crostructure of Six Varieties of Taro (Colocasia Esculenta L. Schott) Flours and Starches, Journal of Food Engineering, 86: 294-305.
[7] Axtell, B., Adams, L. 1993. Root Crop Processing. Intermediate Tec. Publ. London, England.
[8] Cambie, R.C. and Ferguson, L.R., 2003, Potential Functional Foods in the Traditional Maori Diet, Mutation Research, 523-524: 109-117.
[9] Nip,W-K. 1990. Taro Food Products. Proc. Taking Taro into the 1990s: A Taro Conference. Hollyer, J .R.,D.M.S. (Eds.). Resources Extension Series, College of Tropical Agriculture and Human Resources. University of Hawaii.114:3-5, United States of America.
[10] Onwueme, 1999. Taro Cultivation in Asia and the Pacific. Agriculture Department, University of Technology, Lae, Papua New Guinea. Food and Agriculture Organization. FAO of the United Nations Regional of fice For Asia and the Pacific, Bangkok, Thailand 1999.
[11] Alfred, E., Hartemink, M., Johnston, J.N. O’Sullivan, S. Poloma, 2000, Nitrogen Use Efficiency of Taro and Sweet Potato in the humid Lowlands of Papua New Guinea, Agriculture, Ecosystems and Environment 79 271–280.
[12] Mccartan, S.A.Staden, J.V., Finnie, J.F. 1996. in Vitro Propagation of Taro (Colocasia Esculenta). J.S. Afr. Soc. Hort.Sci.6;1-3
[13] Silva, J.A., Coltman, R., Paul, R., Arakaki, A. 1992. Response of Chinese Taro To Nitrogen Fertilization and Plant Populations. In Proceed. of the Workshop on Taro Human and Tanier Modeling. Singh,U. (Ed). College of Tropical Agriculture and Resources. 13-16, Honolulu, Hawaii.
[14] Osorio, N.W. , Shuai, X., Miyasaka, S., Wang, B. Shirey, R.L. and Wigmore, W.J. 2003, Nitrogen Level and Form Affect Taro Growth and Nutrition, Hort. Science February Vol. 38 No. 1 36-40.
[15] Agbor-Egbe, T., Rickard, J.E. 1990. Evaluation of the Chemical Composition of Fresh and Stored Edible Aroids. J.Sci. Food Agric. 53: 487-495.