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

1996
CC BY 4.0

Research organisations
The University of Adelaide University of Adelaide

Trial details

Researcher(s) Robin Graham
HS Grewal
L Zhonggu
Year(s) 1996
Contributor The University of Adelaide
Trial location(s) Waite Adelaide, 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
Download the trial report to view additional trial information

Method

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

Waite Adelaide 1996

Sow date August
Harvest date December
Trial design method CRD Completely Randomised Design
Plot size Not specified
Plot replication 6
Plot randomisation Y
Fertiliser

zinc sulphate
Other trial notes

Grewal HS, Zhonggu L, Graham RD (1997) Influence of subsoil zinc on dry matter production, seed yield and distribution of zinc in oilseed rape genotypes differing in zinc efficiency. Plant and Soil 192, 181-189.
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Trial report and links

1996 trial report



Trial last modified: 25-11-2025 04:05am AEST