Influence of subsoil zinc on dry matter production, seed yield and distribution of zinc in oilseed rape genotypes differing in zinc efficiency

1996

Research organisatons

Trial details

Researcher(s) HS Grewal, L Zhonggu and RD Graham
Year(s) 1996
Contributor South Australian Research and Development Institute
Trial location(s) Tintinara, SA
Further information View external link
Influence of subsoil zinc on dry matter production, seed yield and distribution of zinc in oilseed rape genotypes differing in zinc efficiency locations
Aims

To evaluate the response of three genotypes of Brassica napus and one genotype of Brassica juncea to subsoil low in zinc.

Key messages
  • The effects of zinc supply in subsoil were examined in three genotypes of Brassica napus in a glasshouse experiment.
  • The topsoil was supplied with zinc in all treatments whereas zinc was either supplied or omitted from the subsoil.
  • Supplying zinc to subsoil significantly increased the root growth in the lower zone, markedly decreased the number of aborted and unfilled pods/plant, number of seeds/pod, individual seed weight and overall seed yield.
  • Subsoil zinc also significantly increased the zinc concentration and zinc content of seed and improved the ratio of zinc uptake by seed to total zinc uptake by seed and shoots.
Lead research organisation N/A
Host research organisation University of Adelaide
Related program More Profit from Crop Nutrition
Acknowledgments N/A
Other trial partners Not specified

Method

Crop type Canola
Treatment type(s)
  • Variety: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Tintinara 1996

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser

zinc sulphate




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Trial last modified: 21-10-2019 09:22am AEST