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Germplasm appraisal of western Himalayan tea: a breeding strategy for yield and quality improvement

IR@CSIR-IHBT

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Title Germplasm appraisal of western Himalayan tea: a breeding
strategy for yield and quality improvement
 
Creator Singh, S
Sud, R K
Gulati, Ashu
Joshi, Robin
Yadav, A K
Sharma, R K
 
Subject Plant sciences
 
Description Western Himalayan tea represents the
status of Geographical Indication in the form of
‘‘Kangra Tea’’ which is unique to the tea grown world
over due to its delicate flavor and high quality. The tea
germplasm resources of western Himalayan region
include selections from the commercial tea estates,
abandoned tea gardens of Kangra valley and elite tea
clones of CSIR-IHBT, Palampur. Data were recorded
for different morphological traits contributing to yield
and the biochemical parameters were evaluated using
standard HPLC procedures. Multivariate clustering of
the data differentiated the germplasm resources into
distinct groups based on comparisons among the
clusters for leaf size and biochemical parameters. Leaf
size differentiated the tea accessions into six phenotypic
groups, while shoot density which is an important
yield parameter was observed to be independent
of leaf size. On the basis of total catechin and caffeine
contents, tea accessions were differentiated into nine
groups of which Group I in comparison with other
groups, recorded the highest total catechin content,
moderate to high caffeine level and high astringency
factor (AF). Epicatechin gallate (ECG) had a significantly
high correlation with AF, implying that high
levels of ECG are critical along with corresponding
levels of Epigallocatechin gallate (EGCG) for the
production of Theaflavin 3,30digallate (TFDG) which
is an important quality constituent providing astringency
and briskness to black tea liquor. Sustainability
of tea breeding programme can be achieved through
organization of germplasm resources and by utilizing
elite tea genotypes in breeding programme.
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://ihbt.csircentral.net/1291/1/70_Germplasm_appraisal_of_tea.pdf
Singh, S and Sud, R K and Gulati, Ashu and Joshi, Robin and Yadav, A K and Sharma, R K (2012) Germplasm appraisal of western Himalayan tea: a breeding strategy for yield and quality improvement. Journal of Genet Resour Crop Evol.
 
Relation http://ihbt.csircentral.net/1291/