COCONUT LEAF NUTRIENT LEVELS OF BEARING DWARF VARIETIES AND PHYSIOLOGICAL CRITICAL AND ADEQUACY LEVELS IN CROP NUTRITION MANAGEMENT
Keywords:
Coconut Leaf Nutrient, Crop Nutrition Management, Coconut Dwarf Varieties
Abstract
An analysis of the leaf nutrient concentrations data of bearing palms (grown in a suitable coastal ecosystem) of three coconut dwarf varieties [Malayan yellow dwarf(MLYD), Catigan green dwarf(CATGD) and Tacunan green dwarf(TACGD)] planted at the designed-genetic blocks of the Zamboanga Research Center, San Ramon, Zamboanga City (Western Mindanao, Philippines), covering the period 1995-1999, was conducted . The variability and trend of each leaf nutrient (N, P, K, Ca, Mg, Na, Cl, S and B) over the years was determined.
The critical levels of leaf nutrients are estimated based on the average or normal values of the historical data. An initial general reference guide on the physiological leaf critical levels of dwarfs is presented, as follows (leaf #14, dry matter): 1.70% N: 0.125% P; 0.90% K; 0.38% Ca; 0.26% Mg; ; 0.12% Na, 0.37% Cl; 0.15% S; and 11 ppm B.
The implications of knowing the adequacy and critical levels in leaves as an indicator of crop nutrition to optimize the yield potential of dwarf varieties of coconut are discussed.
References
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Eyzaguirre, P.B. (1998). Farmers’s contribution to improving the value and uses of coconut through the maintenance and use of genetic diversity. In: Batugal, P.A., V. Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumpon, Thailand. IPGRI-APO, Serdang, Malaysia.
Kamaruddin Wazir, S. and A. Othman, (1998). Potential for young tender coconuts and requirements for germplasm conservation and varietal development. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of the Coconut. Proceedings of a workshop, 26–29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Magat, S. S. (1998). Determining nutritional status and fertilizer recommendation for coconut. R&D Technical Report No.5. Agricultural Research and Development Branch, Philippine Coconut Authority, Diliman, Quezon City. 87p.
Magat, S. S. (1999). Handbook on Fertilizer Recommendation for Coconut and Selected Intercrops. The Asian and Pacific Coconut Community. Djakarta, Indonesia. 106p.
Magat, S.S. (1996). Crop fertilizer use efficiency analysis (CFE): A tool in agro-climatic conditions. Coconut Research and Development J. (APCC) 7(2): 1-33.
Magat, S.S., Alforja, L.M. and Oguis, L.G. (1989). An estimation of the critical and optimum levels of leaf-chlorine in bearing coconuts. A guide for foliar diagnosis. Phil. J. Coco. Studies 13(1) 6-9.
Manciot, R., Ollagnier M. and Ochs, R. (1979). Mineral nutrition and fertilization of coconuts around the world. Oleagineux 34(11): 499-515; 34: 563-579.
Naka, P. (1998). Potential of producing sugar from coconut and requirements for germplasm conservation and varietal development. In: Batugal P.A., Ramanatha Rao and C.Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Novarianto, H. and G.A. Santos (1998). Varietal preferences of coconut farmers and processors and proposed conservation and breeding strategies in Southeast Asia. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Proceseedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Ohler, J.G. and Magat, S.S. (2001). Cocos nucifera L. In: van der Vossen, H.A.M. and Umali, B.E. (Editors): Plant Resources of South_East Asia No.14. Vegetable oils and fats. Backhuys Publishers, leiden, the Netherlands. pp. 76 – 84.
Ovasuru, T. (1998). Problems and opportunities of PNG farmers related to coconutvarieties. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Com-petitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IFGRI-APO, Serdang, Malaysia.
Peries, R.R.A. (1998). Coconut varieties for industrial processing and domestic uses: Germplasm conservation and breeding strategies : Sri Lankan experience. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Com-petitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IFGRI- APO, Serdang, Malaysia.
Santos, G.A. (1989). Regional Testing of Promising Coconut Hybrids and Cultivars (MULTILOC). Progress Repot, Philippine Coconut Authority. 24 p.
Thampan, P.K. (1998). Suitable varieties of coconut for household use and local markets. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Eyzaguirre, P.B. (1998). Farmers’s contribution to improving the value and uses of coconut through the maintenance and use of genetic diversity. In: Batugal, P.A., V. Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumpon, Thailand. IPGRI-APO, Serdang, Malaysia.
Kamaruddin Wazir, S. and A. Othman, (1998). Potential for young tender coconuts and requirements for germplasm conservation and varietal development. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of the Coconut. Proceedings of a workshop, 26–29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Magat, S. S. (1998). Determining nutritional status and fertilizer recommendation for coconut. R&D Technical Report No.5. Agricultural Research and Development Branch, Philippine Coconut Authority, Diliman, Quezon City. 87p.
Magat, S. S. (1999). Handbook on Fertilizer Recommendation for Coconut and Selected Intercrops. The Asian and Pacific Coconut Community. Djakarta, Indonesia. 106p.
Magat, S.S. (1996). Crop fertilizer use efficiency analysis (CFE): A tool in agro-climatic conditions. Coconut Research and Development J. (APCC) 7(2): 1-33.
Magat, S.S., Alforja, L.M. and Oguis, L.G. (1989). An estimation of the critical and optimum levels of leaf-chlorine in bearing coconuts. A guide for foliar diagnosis. Phil. J. Coco. Studies 13(1) 6-9.
Manciot, R., Ollagnier M. and Ochs, R. (1979). Mineral nutrition and fertilization of coconuts around the world. Oleagineux 34(11): 499-515; 34: 563-579.
Naka, P. (1998). Potential of producing sugar from coconut and requirements for germplasm conservation and varietal development. In: Batugal P.A., Ramanatha Rao and C.Bong (Editors). Promoting Multi-purpose Uses and Competitiveness of Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Novarianto, H. and G.A. Santos (1998). Varietal preferences of coconut farmers and processors and proposed conservation and breeding strategies in Southeast Asia. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Proceseedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Ohler, J.G. and Magat, S.S. (2001). Cocos nucifera L. In: van der Vossen, H.A.M. and Umali, B.E. (Editors): Plant Resources of South_East Asia No.14. Vegetable oils and fats. Backhuys Publishers, leiden, the Netherlands. pp. 76 – 84.
Ovasuru, T. (1998). Problems and opportunities of PNG farmers related to coconutvarieties. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Com-petitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IFGRI-APO, Serdang, Malaysia.
Peries, R.R.A. (1998). Coconut varieties for industrial processing and domestic uses: Germplasm conservation and breeding strategies : Sri Lankan experience. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses and Com-petitiveness of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IFGRI- APO, Serdang, Malaysia.
Santos, G.A. (1989). Regional Testing of Promising Coconut Hybrids and Cultivars (MULTILOC). Progress Repot, Philippine Coconut Authority. 24 p.
Thampan, P.K. (1998). Suitable varieties of coconut for household use and local markets. In: Batugal, P.A., Ramanatha Rao and C. Bong (Editors). Promoting Multi-purpose Uses of the Coconut. Proceedings of a workshop, 26-29 September 1996, Chumphon, Thailand. IPGRI-APO, Serdang, Malaysia.
Published
2003-06-01
How to Cite
Severino S. Magat, PhD. (2003). COCONUT LEAF NUTRIENT LEVELS OF BEARING DWARF VARIETIES AND PHYSIOLOGICAL CRITICAL AND ADEQUACY LEVELS IN CROP NUTRITION MANAGEMENT. CORD, 19(02), 34. https://doi.org/10.37833/cord.v19i02.371
Section
Articles
