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Morphology and Yield on Second Generation of Tall x Dwarf Coconut Crosses (Cocos nucifera L.)

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Ismail, K., Jaapar, M.F., and Husin, M.A., 2021. Morphology and Yield on Second Generation of Tall x Dwarf Coconut Crosses (Cocos nucifera L.). United International Journal for Research & Technology (UIJRT), 2(9), pp.69-73.


200 of 2nd generation stage of palms arising from a cross tall and dwarf of Cocos nucifera were evaluated for the morphology and yield characters. The objective of this study is to determine the segregation patterns of the morphology and the yield characters on the tall x dwarf cross at the 2nd generation stage planted in the field. In the 2nd generation population planted, 4 segregation genotypes were selected for the present study on the contrasting morphological and production characters. Data on year 4 of segregation, flowering phases, stem height, stem diameter, stem perimeter, and yield was recorded. The segregation to hybrid was the highest number of plants compared to others with 116. Recombination of the autogamous nature along with the tall characters was observed in the 2nd generation palms in terms of stem height and perimeter. Certain segregated genotypes arising from the 2nd generation recorded the high potential number of nuts per hectare/year that comprised dwarf segregation up to 25,000 compared to other segregated varieties due to their resistance to inbreeding depression. The possibility of extracting recombined lines with desirable characters to improve the Malayan tall x dwarf is also discussed.

Keywords: Coconut, Morphology, Second generation, Segregation.


  1. Bavappa, K.V.A, Sukumaran, C.K. and Mathew, J. (1973). A Study of F, hybrids of Tall x Dwarf and its bearing on the genetics of dwarfness. J. Plant. Crops l (Suppl.): 1-6
  2. Bhaskaran, U.P. and Leela, K. (1963). Hybrid Coconut – Tall x Dwarf – A comparative study with parental types. Agric. Res. J. Kerala 1(2): 6783.
  3. Foale M. A., (1992). Coconut genetic diversity – Present knowledge and future research needs. In: Proc of the IBPGR workshop on Coconut Genetic Resources held at Cipanas Indonesia 8-11 October 1991
  4. International Crop Network Series 8 IBPGR 1992.
  5. (2010). Effect of different fertilizers on the growth of coconut seedlings, availability of some nutrients and soil microbial activities. http:// environmentlanka.com/ blog/2010.
  6. Liyanage, D.V. (1956), Intraspecific hybrids in Coconuts. Bull. No. 7, Coconut Research Institute, Ceylon.
  7. Liyanage, D.V. and Abeywardena. (1957). Correlations between seed nut, seedlings and adult palm characters in coconut. Tropical Agriculturist, 133: 325-340.
  8. Liyanage, D.V. (1949). Preliminary studies on the floral biology of the coconut palm. Trop. Agric. (Ceylon) 105 (4): 171 – 175
  9. Magat, S.S. (1999). Production management of coconut. Agricultural Research and Development Branch. Philippine Coconut Authority, Quezon City, Philippines, 1-7.
  10. Patel, J.S. (1937). Coconut breeding. Proc. Assoc. Econ. Biol Coimbatore 5: 1-16
  11. Satyabalan, K. and M.S. Laksmanachar. (1960). Coconut breeding: effects of some breeding procedures. Indian Coconut Journal 13:94-100.

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