Technologies for Host plants

Nursery technique for raising Terminalia arjuna and T. tomentosa seedlings

  • The technology ensures raising of seedlings in polythene tubes of 30 x 10 cm size, maintained for about 3 months in nursery and then transplanted into the field. This technique assures higher seed germination (90%) and survival of seedlings (80%) in the field with quick establishment of tasar garden.



Protocol for vegetative propagation of host plants

  • The protocol enables raising of plantlets from stem cuttings with a success rate of about 80%. The system facilitates propagation of desired genotypes, which hitherto were propagated through seeds.



Micro-propagation of Host Plants

  • Protocol has been developed for micro-propagation of host plants (Terminalia species and Shorea robusta). This has enabled large scale propagation of the desired genotypes.



Integrated package for raising and maintenance of host plants Technologies

  • The package comprises of growing of host plants in spacing of 6x6 ft through seedlings or saplings in pits, manuring of 2 kg manure per plant and fertilizer dose of 100:50:50 kg NPK/ha/yr in two splits. This ensures consistent leaf production of about 5-6 kg/plant from 6th year onwards.



Soil nutrient management through organic manures, chemical fertilizers, green manuring, micro- and secondary nutrients

  • Enables production of high yield of quality leaves for successful silkworm rearing

Foliar application of Urea, as cheapest method of boosting foliage productivity

  • Improves leaf quality and in turn the silkworm rearing performance and cocoon yield

Utilization of farm waste through composting and vermicomposting

    Technologies Technologies
  • Technology has been developed for converting the farm wastes into nutrient rich compost and vermicompost. This ensures proper maintenance of soil fertility and health, leading to production of good quality leaf


Integrated weed management practices

  • Facilitates effective weed management in tasar gardens

Integrated farming system for higher returns

  • Tasar host plant based integrated farming system comprising of leguminous and other cash crops has been developed for effective and sustainable utilization of available land resources. The system has been found economically viable and remunerative for the tasar growers. Net income from the system ranges from Rs. 23,000 to 41,000/ha with additional income of Rs. 4000 – 18000/- per hectare from intercropping of the leguminous crops

IPM against leaf gall

  • The integrated package (IPM) developed consist of Cultural (two times deep ploughing), Mechanical (collection and destruction of different developmental stages of insect such as eggs, grubs/larvae, pupae and adults of coleopteran and lepidopteran pests), Soil application of neem cake and Foliar application of Azadirachtin (6 ppm Azadirachtin). This reduces the gall infestation and facilitates availability of quality leaf for silkworm rearing.

Secondary nutrient combination SM5 for increased leaf and cocoon yield

  • The combination SM5 increased the quality leaf yield by 27.45% in T. arjuna and 26.55% in T. tomentosa over control with significant improvement in cocoon characters.

Tetraploid genotype of Terminalia arjuna

  • One tetraploid genotype of Terminalia arjuna with thick lamina (442.75 µm) and superior leaf quality (77.76% moisture, 20.68 mg/g leaf protein, 3.54 mg/g total chlorophyll) has been developed (Control – 284.62 µm thickness, 74.32% moisture, 14.64 mg/g protein and 2.05 mg/g total chlorophyll)