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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Table 8.2 Accessions selected in Thailand based on RVP<br />
Accession No. Real value of pulp (%) (RVP) Rank<br />
87-2-01-035<br />
87-2-0l -029<br />
87-1-02-001<br />
87-1-02-002<br />
87-1-02-003<br />
87-1-02-004<br />
87-1-02-005<br />
20.20<br />
18.39<br />
17.98<br />
15.00<br />
12.00<br />
11.28<br />
10.80<br />
Source: Feungchan et al., 1996 a.<br />
In this study, it was also found that excellent accessions had RVP values of<br />
over 21 and <strong>the</strong> number of pods was about 13-15 per kilogram. Most of <strong>the</strong><br />
best accessions were found in provenances along <strong>the</strong> Mae Kong River, but<br />
<strong>the</strong> role of <strong>the</strong> river in all <strong>the</strong>se cases has not been fully understood. Based<br />
on RVP values, 51 outstanding accessions are undergoing fur<strong>the</strong>r evaluation.<br />
Thailand is also paying attention to <strong>the</strong> percentage of tartaric acid and sugar,<br />
<strong>the</strong> main determinants <strong>for</strong> taste and flavour. Accessions have been selected<br />
<strong>for</strong> improvement <strong>for</strong> industrial purposes. One accession (No: 86-2-23-017)<br />
has given <strong>the</strong> highest content of tartaric acid (up to 11.2%) and has potential<br />
<strong>for</strong> commercial extraction of tartaric acid. Ano<strong>the</strong>r accession (No:<br />
86-13-008) had a sugar content of 39.9% and could be valuable <strong>for</strong> fructose<br />
production. Yet ano<strong>the</strong>r accession (No: 87-2-01-035) was found to give <strong>the</strong><br />
highest concentrated tamarind flesh and this is suitable <strong>for</strong> processing into<br />
sauces, drinks and confectionery.<br />
8.3.2 Philippines<br />
Variation has been observed in fruit <strong>for</strong>ms in <strong>the</strong> Philippines. Some are<br />
oblong and short, while o<strong>the</strong>rs are long and curved. Sweet and sour types are<br />
found in different parts of <strong>the</strong> country. Several trees bearing sweet fruits<br />
have been found in Cavite and Laguna. The University of <strong>the</strong> Philippines at<br />
Los Banos long ago selected and identified sweet tamarind varieties, namely<br />
Cavite, Batangas, Bulacan, and Laguna. These varieties have long plump<br />
fruits with thick sweet pulp. Some of <strong>the</strong> sweet types have pods 7-10 cm<br />
long and 2-3 cm wide, weighing 20-30g, containing thick sweet pulp with<br />
6-7 seeds. Forty-six accessions of tamarind germplasm are presently<br />
available in <strong>the</strong> Institute of Plant Breeding, Los Banos, Philippines.<br />
The varietal characteristics of tamarind lines introduced from <strong>the</strong> Philippines<br />
have been evaluated at <strong>the</strong> US Department of Agriculture, Subtropical<br />
Horticulture Research Station at Miami, Florida (Knight, 1980) and <strong>the</strong><br />
station developed a cultivar called ‘Manila Sweet’.<br />
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