Crop Improvement


  • Tapioca YTP 1 was released during 2013 with tuber yield of (49.50 t/ha) with the starch content of 25.00%. Planting material of this variety was supplied to 455 farmers covering 132 ha in Salem, Namakkal, Dharmapuri, Erode, Villupuram, Cuddalore and Nagapattinam districts of Tamil Nadu.
  • Tapioca YTP 2 was released during 2020 with better performance high tuber yield (6.28 kg/plant) and starch content (29.62%), with no visible symptom of CMD incidence. Adoption in Salem, Namakkal, Erode, Cuddalore, Villupuram, Perambalur, Ariyalur, Dharmapuri and Trichy districts under irrigated conditions and rainfed conditions (with partial irrigations). Also under rainfed conditions in hilly tracts of Karumandurai of Salem district, Kolli hills of Namakkal district and Pachamalai hills of Perambalur district.


Pistillate lines Developed.

Pistillate line YRCP 1 and 2

Name of the line Pedigree Morphological Character
YRCP 1 Mutant TMV 5 R3SP ,14 Node, Flat leaf, Wilt Resistant
YRCP 2 Mutant DPC 9 G3SP, Very Long spike (75-80 cm), 14 Node, Flat leaf, Wilt Resistant.

Germplasm Exploration and Collection.

  • In Collaboration with DOR, Hyderabad, exploration has been done in Salem, Namakkal, Karur, Dindigul and Erode Districts.
  • Total of 210 accessions of land races were collected.