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dc.contributor.authorCowley, R.
dc.contributor.authorLuckett, D.
dc.contributor.authorMoroni, J.
dc.contributor.authorDiffey, Simon
dc.date.accessioned2017-01-30T12:50:38Z
dc.date.available2017-01-30T12:50:38Z
dc.date.created2015-10-29T04:09:58Z
dc.date.issued2014
dc.identifier.citationCowley, R. and Luckett, D. and Moroni, J. and Diffey, S. 2014. Use of remote sensing to determine the relationship of early vigour to grain yield in canola (Brassica napus L.) germplasm. Crop and Pasture Science. 65 (12): pp. 1288-1299.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/25865
dc.identifier.doi10.1071/CP14055
dc.description.abstract

Early crop vigour in canola, as in other crops, is likely to result in greater competition with weeds, more rapid canopy closure, improved nutrient acquisition, improved water-use efficiency, and, potentially, greater final grain yield. Laborious measurements of crop biomass over time can be replaced with newer remote-sensing technology to aid data acquisition. Normalised difference vegetation index (NDVI) is a surrogate for biomass accumulation that can be recorded rapidly and repeatedly with inexpensive equipment. In seven small-plot field experiments conducted over a 4-year period with diverse canola germplasm (n = 105), we have shown that NDVI measures are well correlated with final grain yield. We found NDVI values were most correlated with yield (r >0.7) if readings were taken when the crop had received 210-320 growing degree-days (usually the mid-vegetative phase of growth). It is suggested that canola breeders may use NDVI to objectively select for vigorous genotypes that are more likely to have higher grain yields.

dc.publisherCSIRO
dc.titleUse of remote sensing to determine the relationship of early vigour to grain yield in canola (Brassica napus L.) germplasm
dc.typeJournal Article
dcterms.source.volume65
dcterms.source.number12
dcterms.source.startPage1288
dcterms.source.endPage1299
dcterms.source.issn1836-0947
dcterms.source.titleCrop and Pasture Science
curtin.departmentCentre for Crop Disease Management
curtin.accessStatusFulltext not available


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