Tamarind monograph.pdf - Crops for the Future
Tamarind monograph.pdf - Crops for the Future
Tamarind monograph.pdf - Crops for the Future
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7.3.3 Ideotypes<br />
It is essential <strong>the</strong>re<strong>for</strong>e to identify different ideotypes <strong>for</strong> different purposes,<br />
localities, environments and cultural practices. These <strong>the</strong>n act as reference<br />
guides. There is no universal ideotype suitable <strong>for</strong> all sites and end users.<br />
Chuntanaparb and Ranganathan (1990) have described <strong>the</strong> characteristics of<br />
such ideotypes (Table 7.3); <strong>the</strong>y are extensive and to a degree <strong>the</strong>oretical but<br />
are useful points of reference.<br />
Table 7.3 Characteristics of ideotypes <strong>for</strong> tamarind fruit production<br />
Character Proposed ideotype <strong>for</strong><br />
India<br />
Product and<br />
services<br />
required<br />
General<br />
selection criteria<br />
Required/o<strong>the</strong>r<br />
in<strong>for</strong>mation<br />
Ideotype description<br />
Crown<br />
Stem<br />
Shoots<br />
Fruit<br />
Pods <strong>for</strong> edible pulp, wood<br />
<strong>for</strong> fuelwood, timber and<br />
charcoal, leaves <strong>for</strong> fodder,<br />
seed <strong>for</strong> extraction of starch<br />
<strong>for</strong> textile and paper<br />
production<br />
Vigour, fruit quality, early<br />
fruit set, resistance to pests<br />
and insects<br />
99<br />
Proposed ideotype <strong>for</strong> Sri<br />
Lanka<br />
Fruit, branches <strong>for</strong> fuelwood,<br />
bole <strong>for</strong> timber<br />
Fruit and wood biomass<br />
production, vigour, pest and<br />
disease free<br />
Fodder value of leaf Tolerates poor soil, low<br />
water consumption,<br />
regenerates naturally.<br />
Maintained on common<br />
lands, in home gardens and<br />
along roadsides<br />
Round large canopy with many branches <strong>for</strong> greater fruit<br />
production<br />
Large, with no branches up to a height of 2-3 m.<br />
Longer terminal shoot length<br />
Production should begin in <strong>the</strong> 4th or 5th year. There<br />
should be greater yield of fruit with a good yield every<br />
year instead of <strong>the</strong> current cyclical pattern. The fruiting<br />
season could be longer. The fruit itself should be bigger<br />
and fleshier<br />
Discussion Selection criteria should be increased fruit yield and size<br />
of pods<br />
Source: Modified from Chuntanaparb and Ranganathan, 1990.