Effects of zinc on photosynthesis and yield of wheat under heat stress

2001

Research organisatons

Trial details

Researcher(s) AW Graham
Glenn McDonald
Year(s) 2001
Contributor South Australian Research and Development Institute
Trial location(s) Adelaide, SA
Further information View external link
Effects of zinc on photosynthesis and yield of wheat under heat stress locations
Aims

Examine the interaction between zinc nutrition and heat stress on the photosynthetic activity and grain yield of wheat plants under both field and growth room conditions.

Key messages
  • We examined the interaction between zinc nutrition and heat stress on the photosynthetic activity and grain yield of wheat plants under both field and growth room conditions.
  • The zinc inefficient cultivar Goldmark was found to have an improved chlorophyll fluorescence ratio (Fv/Fm), a measure of injury to photosynthesis, under heat stress when supplied with elevated levels of zinc compared to plants where less zinc was applied.
  • However supplementary zinc did not prevent a decline in kernel weight or grain yield under high temperature conditions.
  • The results indicate that supplementary zinc nutrition, in a zinc inefficient genotype at least, can provide thermotolerance to the photosynthetic apparatus of wheat.
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 Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser: Application Method
Trial type Experimental
Trial design Unknown

Adelaide 2001

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Other trial notes

Graham A, McDonald G (2001) Effects of zinc on photosynthesis and yield of wheat under heat stress. In Proceedings of the 10th Australian Agronomy Conference; "Science and technology: delivering results for agriculture". Hobart, Tasmania. (Ed. W Rowe) Australian Society of Agronomy.

Trial report and links


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Trial last modified: 10-06-2019 11:40am AEST