Major Achievements

Major achievements upto 1950
  • Introduction of annual prune
  • Improved pest control measures
  • Drainage
  • Clonal propagation of tea from single nodal cuttings Importance of legume as shade
  • Release of TV1, TV2 and TV3
Major achievements (1960-69)
  • Release of TV10, TVII. TV12. TV13. TV14, TV15, TV16 and TV17
  • Release of a biclonal seed stock (under Stock 378) in the breeding scheme Nanda Devi for Darjeeling,
  • Balanced NPK manuring
  • Introduction of longer pruning cycle
  • Leguminous shade tree
  • Planting pattern and plant density
  • Recommendation of herbicides
Major achievements (1980-89)
  • Release of biclonal seed stocks 379, 462, 463, 464 and 491.
  • Release of TV25. TV26, TV27 and TV28,
  • Release of 30 garden series clones, 15 for the Dooars & Terai and 15 for Darjeeling
  • Plant growth regulators for crop productivity Introduction of tissue culture in tea
  • Introduction of polyploidy clones
  • Irrigation and drainage
  • Improved pest control methods through IPM
Major achievements (1950-59)
  • Release of TV4, TV5, TV6, TV7. TV8 and TV9.
  • Introduction of herbicides
  • Standardisation of tipping level at 5 leaves
  • . A new species of Camellia (Camellia irrawadiensis) was discovered at Tocklai, resembling teas in leaf
  • appearance and can be easily crossed with tea.
Major achievements (1970-79)
  • Release of TV18, TV19, TV20, TV21, TV22, TV23 and TV24, along with three biclonal seed stocks 449, 450
  • and 397.
  • Introduction of micronutrients
  • Potash application basis
  • Drainage improvement
  • Young tea management
  • Better pest control methods
Major achievements (1990-99)
  • Release of a triploid clone TV29 and eight garden
  • clones Development of a new method for filling of nursery sleeves .
  • Biopesticides, Trichoderma, Package for Helopeltis control
  • Drip irrigation
  • Tissue culture technique New biclonal seeds and clones
  • Establishment of pesticide residue testing laboratory Establishment of laboratory for heavy metal
  • testing
  • Conservation of tea germplasm.
Major achievements (2000-2009)
  • Release of rea cultivars, Lengree 51 and Lengree 56 for drought affected areas.
  • Development of new cultivars under TV series. TV31 was released after multi-locational trials
  • Innoduction of a new Anadenanthera peregrina, a new leguminous shade tree.
  • Comparison of remote sensing imageries for five pilot areas with topographic map of 1912-13.
  • Development of a new enriched vermicompost technology.
  • Introduction of the VAM technology for tea nurseries.
  • Beauveria Bassiana, an entomopathogenic fungus developed for of Helopeltis. Establishment of the
  • Model Tea Factory at Tocklai for process optimisation.
  • Cargorisation of clones based on withering and fermentation.
  • Development of the Modified rolling table for Darjeeling. • Development of a process for producing the
  • tea tablet.
  • Development of a process for producing soft drinks based on tea by-products.
Major achievements (2010 onwards)
  • Standardization in installation of low cost sticky traps to control thrips and jassids.
  • Development of low cost light traps to control red slug and loopers.
  • Integrated management of rea loopers. Release of two new clones (TTRII and TTRI II) and one new seed
  • stock (TS560) for Darjeeling. TTRI I is drought
  • tolerant, while TTRI II is moderately tolerant to drought.
  • Submission of 10,200 Expressed Sequence Tags (EST) of drought, herbivory and blister blight to NCBI
  • Amplified Fragment Length Polimorphism (AFLP) based genetic diversity assessment of 123
  • commercially
  • important tea germplasms of India. Development of Neem Kernel Aqueous Extraction technology for
  • pest management.
  • Development of ovipositional barriers for looper pest management.
  • Development of coloured sticky traps for thrips, green hoopers and whitefly. Development and release
  • of nutrient management packages for organically grown young tea and mature tea, under conversion
  • Establishment of a Training & Research Centre for Small Tea Growers. • Establishment of a Tea Tourism
  • Hub at Tocklai.