USEFULNESS OF EARLY DIAGNOSTIC METHODS FOR EFFECTIVE MANAGEMENT OF BASAL STEM ROT (GANODERMA) DISEASE OF COCONUT
Keywords:
Disease of Coconut
Abstract
Chemodiagnostic methos EDTA and TTC tests and physiological parameters electrical conductivity and relative water content are useful to detect the basal stem rot disease in coconut palms, 4 - 14 months before visual symptom expression. The critical values of these tests for symptom expression have been fixed. In coconut trees, root sampling from any directions at 15 - 30 cm depth is optimum for early detection tests. Coconut palms without symptoms but showing higher values in diagnostic tests responded well to treatments by registering lesser disease index and higher nut yield than the treated palms with external symptoms.
References
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Bhaskaran, R., Rethinam, P. and Nambiar, K.K.N. 1989. Thanjavur wilt of coconut. J. Plantation Crops, 17 : 69 – 79
Bhaskaran, R., Rethinam, P. and Nambiar, K.K.N 1994. Ganoderma wilt disease of coconut. In: Advances in Horticulture No.10 - Plantation Crops and Spice Crops, Part.2 (Ed.) K.L.Chadha and P. Rethinam.
Kamala Thirumalaiswamy, Vijayaraghavan, H., and Joseph Savery. 1992. Early diagnosis of Thanjavur wilt of coconut. Indian Coconut Journal, 23 (5) : 9 - 10
Karthikeyan, A. 1995. Chemodiagnostic methods for early detection of Thanjavur wilt of coconut. Plant Disease Research 10 (2) : 168 - 170.
Natarajan, S., Bhaskaran, R., and Shanmugam, N. 1986. Preliminary studies to develop techniques for early detection of Thanjavur wilt in coconut. Indian Coconut Journal, 17 (3) : 3 - 6.
Rajagopal, V., Patil, K.D. and Sumathy kutty Amma,B . 1986. Abnormal opening in coconut palms affected with root (wilt) disease. J. Expl. Bot., 37 : 1398 - 1405
Rajagopal, V., Sumathy kutty Amma, B. and Patil, K.D. 1987. Water relations of coconut palms affected with root (wilt) disease. New Phytol., 105 : 289 - 293
Published
2002-12-01
How to Cite
A. Karthikeyan, S. Mohan, & R. Bhaskaran. (2002). USEFULNESS OF EARLY DIAGNOSTIC METHODS FOR EFFECTIVE MANAGEMENT OF BASAL STEM ROT (GANODERMA) DISEASE OF COCONUT. CORD, 18(01), 34. https://doi.org/10.37833/cord.v18i01.356
Section
Articles
