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Monogerm sugar-beet seed production experiments

  • P. C. Longden (a1)

Summary

Eight experiments investigated how different sowing and harvest dates, plant populations and fertilizers affect yield, germination and size of seed from hybrid monogerm sugar-beet seed crops, grown in situ when raised under barley cover in Lincolnshire, or open sown in Oxfordshire. Weather at seed harvest was wetter than average in 1968, average in 1969, and drier in 1970. Most seed of good quality came from plant populations of 300000 plants/ha sown in early July, given ample P and K fertilizer in the seed bed and 150–200 kg/ha of N in the spring of the second year in Oxfordshire or 200–250 kg/ha N in Lincolnshire. Harvesting in early September on average yielded most seed. Methods used to grow multigerm seed proved suitable also for monogerm seed but the percentage germination was lower for monogerm than multigerm seed.

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References

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Hull, R. (1952). Control of virus yellows in sugar beet seed crops. Jl R. agric. Soc. 113, 86102.
Hull, R. & Scott, R. K. (1969). A comparison of methods of growing sugar beet seed. J. agric. Sci., Camb. 72, 109–17.
Longden, P. C. (1969). A machine for rubbing small samples of sugar beet fruit. J. int. Inst. Sug. Beet Res. 4, 160–8.
Longden, P. C. (1970). Manuring the beet seed crop grown in England. N.A.A.S. q. Rev. No. 87, 112–18.
Scott, R. K. (1969). The effect of sowing and harvesting dates, plant population and fertilizers on seed yield and quality of direct drilled sugar beet seed crops. J. agric. Sci., Camb. 73, 373–85.
Sneddon, J. L. (1963). Sugar beet seed production experiments. J. natn. Inst. agric. Bot. 9, 333–45.

Monogerm sugar-beet seed production experiments

  • P. C. Longden (a1)

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