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Reading: IS THERE ECOLOGICAL ADAPTATION IN COCONUT NURSERY SEEDLINGS STAGE? A PRELIMINARY INVESTIGATION

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IS THERE ECOLOGICAL ADAPTATION IN COCONUT NURSERY SEEDLINGS STAGE? A PRELIMINARY INVESTIGATION

Authors:

R. R. A. PERIES ,

COCOS, LK
About R. R. A.
Coconut Research Institute, Lunuwila, Sri Lanka.
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J. M. D. T. EVERARD

LK
About J. M. D. T.
Coconut Research Institute, Lunuwila, Sri Lanka.
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Abstract

Seedlings were raised in three, nurseries representing different agro-ecological
regions, to. test whether growing seedlings exhibited adaptation to a particular
environment. Seed nuts were also selected from agro-ecologically different regions.
The T x T seed nuts from the Isolated coconut seed garden showed a faster rate of
germination at all sites compared to Moorock seed nuts (from the North Western
region) or Dehigahalande seed nuts (from the Southern region). The vigor of
seedlings (a qualitative assessment based on the number of vigorous seedlings
selected) was enhanced by a good soil water supply during the early nursery stages
combined with a higher level of solar-radiation at the nursery site. There was no
interaction between the source of seed nut and site of nursery indicating the absence
of manifestation of ecological adaptation at the seedling nursery. The quality of the
seedlings was enhanced by adequate soil water and high level of solar radiation on
the nursery' beds. The subsequent performance, of these seedlings would have
followed up after field planting to confirm the assumptions on adaptation discussed.
How to Cite: PERIES, R.R.A. & EVERARD, J.M.D.T., (2010). IS THERE ECOLOGICAL ADAPTATION IN COCONUT NURSERY SEEDLINGS STAGE? A PRELIMINARY INVESTIGATION. COCOS. 10, pp.10–19. DOI: http://doi.org/10.4038/cocos.v10i0.2133
Published on 28 Jul 2010.
Peer Reviewed

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