Chandragiri: Moon Mountain of Brown Gold
Coffee connoisseurs from
over the world were introduced to the seeds of a new variety of Arabica plant
called Chandragiri by the Central Coffee Research Institute (CCRI) in December
2007. Since then, the ‘Brown Gold’s’ aroma and flavour has magnetised the coffee
lovers from different parts of the world. The Chandragiri plant, which was
introduced to the coffee planters in India for commercial exploitation,
received good response from them and since then there has been a huge demand
for the seed.
The folklore goes like
this that around four hundred years ago, a young saint named Baba Budan set
sail for Mecca. Tired of travel, the pilgrim stopped for some refreshment at a
street stall, where he was dished out a small cup of a dark, sweet liquid. Sipping
the thick black brew rejuvenated the young saint. He thereby decided to carry
it back home for his people. But, on the other hand, he also came to know that
the Arabians guarded their secret fiercely, and hence the local law would not
allow him to carry it with him. Hence, thereafter, Baba Budan strapped the
seven seeds of the Arabian coffee plant to his belly, undetected under his
ritual garments. After coming to his motherland, Baba Budan raised the
seedlings in the Chandragiri hills of Karnataka. Today those seven charming
seeds have grown into different varities, and has resulted in the world’s
widest range of coffees from a single country.
The Chandragiri is a
semi-dwarf variety, with its bush growth vigorous in comparison to other dwarf
coffee varieties like Cauvery and San Ramon. Its leaves are broader, thick and
dark green in colour. It is to be noted that this variety produces relatively
bolder and longer beans compared to other Arabica selection.
It is interesting to
note that the feedback from the coffee growers on the field performance of this
variety is very encouraging. The genetic uniformity, the initial crop yields
and the field tolerance to leaf rust have also been reported to be good. Along
with this, the majority of growers used Chandragiri for gap filling purposes or
interlined them in the existing plots.
It has also been
observed that if the ideal cultivation practices are followed, then there is no
significant difference with respect to the yield performance of the various
semi-dwarf varieties like Catuai x HDT and Chandragiri. Apart from this, the
Chandragiri variety followed by Catuai x HDT manifest good field tolerance to
rust compared to other semi-dwarf varieties. The Chandragiri variety also has a
definite advantage with respect to superior grade percentages as over 70 per
cent of the beans belong to 'A' grade on average, of which 25- 30 per cent
belong to AA grade with superior bean density. When compared to other
varieties, the per cent of 'A' grade beans range between 60-65 per cent with
15-20 per cent AA grade.
The researchers have
also observed that disease development in the Chandragiri variety is very late
compared to other semi-dwarf varieties. Along with this, the disease severity
is also low (less than 5 per cent). But when it comes to tolerance to the
coffee white stem borer, like all other Arabica varieties, Chandragiri also
does not possess genetic resistance to this major pest. The white stem borer is
the most serious pest of Arabica coffee in India and other South East Asian
countries. However, under ideal growing conditions i.e. two tier mixed shade
and above 1000 metres MSL (Main Sea level) i.e. 3300 ft, generally low
incidence of the pest is noticed. This is because of the vigorous bush stature
with drooping branches and high retention of foliage due to rust tolerance,
which might act as a physical barrier to white stem borer adults to attack the
main stem. Maintenance of optimum shade (preferably two tier shade) and regular
tracing and destruction of the infested plants is a must to control the pest.
Further, other recommended pest management strategies such as, 10 per cent lime
application, use of pheromone traps and stem wrapping etc. may be practiced
depending on the necessity.
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