Optimization of Seed Rate through Seed Rate Compensation on Growth Parameters of Soybean

Author: Priyanka M.*, Parashivamurthy, Ramanappa, T.M. and Siddaraju, R.

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Abstract

The field experiment was conducted to optimize seed rate through seed rate compensation as seed rate and cost of soybean is very high and to the know the effect of seed rate compensation on growth parameters in JS335 and JS9560 soybean varieties during 2017-18 at NSP, University of Agricultural Sciences, Bangalore. The experimental material for the study comprised of 2 soybean varieties (JS335 and JS9560) procured from National Seed Project (NSP) and experimental field was laid out in factorial randomized complete block (FRCBD). The results revealed that, among the seed rate compensation levels, Seeds of 70 per cent germination with normal seed rate (62.5 kg/ha;C1) recorded highest field emergence (86.19%), Plant height at 30Days after sowing (DAS), 60DAS and at harvest (25.80cm, 37.67cm and 45.92cm respectively) and the lowest was observed in aged seeds of 50 per cent germination with compensated seed rate (87.5 kg / ha;C5) (69.51%, 17.61cm, 27.17cm and 35.55cm respectively). The num

Keywords

Seed rate compensation, days to 50 % flowering, days to maturity, plant height, field emergence (%).

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