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THE BROWN DWARF: A RECENT ADDITION TO THE VARIETIES AND FORMS OF THE COCONUT PALM GROWN IN SRI LANKA

Author:

R. R. A. PERIES

COCOS, LK
About R. R. A.
Coconut Research Institute, Lunuwila, Sri Lanka.
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Abstract

The endemic coconut germplasm of Sri Lanka have been categorized into three
main varieties Viz. typica, nana and aurantiaca by Liyanage (1958) based on their
morphological characters and breeding behavior.
The variety nana or the dwarf, also known as Kundira to the local farmer,
included three colour forms viz. form red (Regia), form yellow (Eburnea) and form
green (Pumilla). Except for these three colour forms no other intermediate forms
had been reported.
Under the germplasm collection and conservation programme of the Coconut
Research Institute of Sri Lanka, a single palm of a brown coloured dwarf was
initially identified in a home garden near Madampe in the Puttalam district (Peries,
1991). Later a few palms showing similar morphological characters and breeding
behavior were located in Kirimetiyana, Marawila and Mawathagama within the
coconut triangle, with most cases as a single tree in a home garden.
The original palms were initially inspected for their breeding behavior by
observing the male and female phases of the inflorescence, and other common
morphological characters such as stature, stem girth, presence of absence of the bole,
length and width of fronds and leaflets, nut components, inflorescence and the
germination speed.
The short stature (4 m), narrow stem, absence of a bole, narrow and short fronds
and leaflets, the small nut size and weight and the presence of a large number of
female flowers (average 80 per inflorescence and an average of 4 per spikelet) and
the overlapping male and female phases of the inflorescence indicative of self
pollinating behavior, which are the typical characteristics of dwarfs, confirmed the
identified palm as another colour form of the variety nana. The results of the Fruit
Component Analysis carried out for nuts of the original palms of the form dwarf
brown are presented in Table 1.
How to Cite: PERIES, R.R.A., (2010). THE BROWN DWARF: A RECENT ADDITION TO THE VARIETIES AND FORMS OF THE COCONUT PALM GROWN IN SRI LANKA. COCOS. 11, pp.79–81. DOI: http://doi.org/10.4038/cocos.v11i0.2160
Published on 10 Aug 2010.
Peer Reviewed

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