Method of seed production

Method of seed production
    Method of seed production
    • Seed to Seed
    Stages of seed production
    • Breeder seed → Foundation Seed I → Foundation Seed II → Certified Seed.
    Varieties
    • CO.1, CO.2. MDU 1, PKM.1, KKM.1, PLR. 1. AU1, Pusa purple long, Arka nidhi, Pant smart, Arka neelkanth, Arka shrish.
    Hybrids
    • COBH1, Arka Navneet (IIHR 22 1 x Supreme), Pusa H 5, Pusa H 6, MHB 10, MHB 39 (Mahyco), Azad Hybrid.
    Season
    • The brinjal seed production can be taken up in the following two seasons.
    • May June and December January
    Land requirement
    • The land should be free of volunteer plants.
    Isolation
    • For varieties, 200 M and 100 M of isolation distance is required for foundation and certified seed, respectively.
    • For hybrid seed production minimum of 200 M isolation distance should be maintained.
    Seed rate
    • Varieties - 400 500 g/ha
    • Hybrids - 200 g/ha (Female)
    -50 g/ha (Male)
    Seed treatment
    • Seed treatment with Trichoderma viride @ 4g kg-1 before sowing can be practiced against the incidence of damping off disease.
    • Drenching of copper oxy chloride at 0.1% at weekly interval minimize this disease.
    Nursery
    • Sow the seeds in raised nursery bed of 20 cm height, in rows of 5 cm gap and covered with sand.
    • Eight and ten nursery beds will be sufficient to transplant one acre.
    • Apply 2 kg of DAP 10days before pulling out of seedling.
    Transplanting
    • Seedlings are transplanted when they are 30 35 days old (12 15 cm height) preferably in the evening time.
    • Spacing of 75 x 60 cm (non spreading) and 90 x 60 cm (spreading) varieties, 90 x 60 cm for female parent and 60 x 45 cm for male parent of hybrids.
    Manuring
    • The field should be thoroughly ploughed for fine tilth and apply 25 tons of FYM/ha.
    • The other fertilizer requirement for brinjal variety and hybrid are same as followed for tomato seed production.
    Roguing
    • The roguing should be done based on the plant characters, leaf, branching and spreading characters and also based on fruit size, shape and color.
    • The plants affected by phomopsis blight, leaf spot and little leaf virus disease should be removed from the seed production field.
    Specific Field Standards
    Factors Foundation Certified
    Off types – Variety (max) 0.1% 0.2%
    Hybrid (max) 0.01% 0.05%
    Designated diseased plant (max) 0.1% 0.5%

    • The designated diseases in brinjal are Phomopsis blight caused by Phomopsis vexans and little leaf caused by Datura virus 2.
    Pest and disease management
    Nematode and Damping off disease
    • Seed treatment with antagonistic fungi viz., Trichoderma harzianum 4 g/kg seed or T. viride 4 g/kg seed along with application of press mud at 5 kg/m2 or Carbonfuran 3 G 10 g/m2.
    • Application of Carbofuran 3 G at 10 g/sq.m at the time of sowing and Pseudomonas fluorescens at 10 g/m2 for nematodes and damping off disease.
    Epilachna beetle
    • Collection and destruction of the beetles, grubs and pupae.
    • Spraying of carbaryl 50 WP 2 g/lit
    Whitefly
    • Monitoring the whitefly with yellow sticky trap at 12/ha.
    • Spraying of Neem oil 3% plus Teepol (1 ml/lit) or spraying of Neem Seed Kernel Extract 5 %.
    Shoot and fruit borer
    • Removal of the affected terminal shoot showing boreholes and collection and destruction of affected fruits.
    • Spraying any one of the following chemicals starting from one month after planting at 15 days interval
    1. Carbaryl 50 WP 2 g/lit + Wettable Sulphur 50% WP 2 g/lit.
    2. Triazophos 35 EC 2 ml/lit + Neem oil 3 %.
    3. Quinalphos 25 EC 2 ml/lit + Neem oil 3 %.
    4. Neem Seed Kernel Extract 5 %.
    5. Avoid using synthetic pyrethroids.
    Ash Weevil
    • Application of carbofuran 3 G at 15 kg/ha 15 days after planting.
    Aphid
    • Methyl demeton 25 EC 2 ml/lit or dimethoate 30 EC 2 ml/lit.
    • Release 1st instar larvae of Green lace wing bug (Chrysoperla carnea) @ 10,000 per ha.
    Red Spider mite
    • Spraying of dicofol 18.5 EC 2.5 ml/lit or wettable sulphur 50 WP 2g/lit.
    Diseases
    Damping off
    • Treating the seeds with Trichoderma viride 4 g/kg or Pseudomonas fluorescens 10 g /kg of seed 24 hours before sowing.
    • Application of Pseudomonas fluorescens as soil application @ 2.5 kg/ha mixed with 50 kg of FYM.
    • Stagnation of water should be avoided.
    • Drench with Copper oxychloride at 2.5 g/lit at 4lit/sq.m
    Leaf Spot
    • Spraying of Mancozeb 2 g/lit.
    Little Leaf
    • Removal of the affected plants in the early stages and spraying of methyl demeton 25 EC 2ml/lit or dimethoate 30 EC 2 ml/lit. to control the vector

Last modified: Wednesday, 20 June 2012, 6:14 AM