Effect of borax application on young coconut palms

  • P.G. Kamalakshiamma
  • M. Shanavas
  • D. Prema
  • Jacob Mathew
Keywords: Effect of Borax, Young Coconut, Coconut Palms


There is increasing incidence of boron deficiency in coconut palms in the root (wilt) affected tract in the southern districts of Kerala, India. An earlier survey in this tract indicated that 19-25% of the palms had boron deficiency symptoms. The symptoms manifested due to boron deficiency in coconut palms include malformations in leaves as well as in the nuts resulting in stunted growth and low productivity. A field experiment was conducted at Central Plantation Crops Research Institute, Kayamkulam to study the effect of different doses of boron on deficiency symptoms and the nutrition of coconut seedlings. The results revealed that the seedlings which had boron deficiency symptoms showed recovery with the boron application. Among the different levels of borax (Na2B4O7.10H2O) tried on coconut seedlings, application of 300 g borax per seedling per year in two equal splits was found effective to achieve recovery and to improve the growth of the young seedlings. The seedlings treated with borax showed improvement in growth parameters such as girth at collar, annual leaf production and total functional leaves and boron content in leaf tissues.


Brunin, C. and Coomans, P. 1973. Boron deficiency in young coconut in Ivory Coast. Oleagineux 28(5): 229-234.

Cecil, S.R. and Pillai, N.G. 1978. Role of boron in coconut nutrition. Indian Cocon. J. 9: 1- 3.

George, M.V. and Radha, K. 1973. Computation of disease index of root (wilt) disease of coconut. Indian J. Agric. Sci. 43(4): 366-370.
Jackson, M.L. 1973. Soil Chemical Analysis. Prentice Hall of Plant. India (Pvt) Ltd. New Delhi.
Kamalakshiamma, P.G., Prema, D. and Shanavas, M. 2001. Boron deficiency in coconut (Cocos nucifera L). Diagnosis and Correction. Technical Bulletin No. 40. Published by V. Rajagopal., Director, Central Plantation Crops Research Institute and Edited by H.H. Khan, H.P. Maheswarappa and P. Anitha Kumari.

Kamalakshiamma, P.G. 2001. Role of Boron in Coconut Nutrition. Final Report, 106 pp.

Margate, R.Z, Magat, S.S. and Abad, R.G. 1979. Boron requirement of hybrid coconut seedlings grown in an island coconut soil of Davao. Philippine J. Cocon. Stud. 4(3): 6-14.

Pillai, N.G., Kamaladevi, C.B., Wahid, P.A. and Nambiar, C.K.B. 1983. Available micronutrient status of major soil types under coconut in healthy and root (wilt) affected tracts of Kerala, India, pp. 144-151. In: Coconut Research and Development. Nayar, N.M. (Ed.). Wiley Eastern, New Delhi.
How to Cite
P.G. Kamalakshiamma, M. Shanavas, D. Prema, & Jacob Mathew. (2005). Effect of borax application on young coconut palms. CORD, 21(02), 34. https://doi.org/10.37833/cord.v21i02.404