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Effect of surface application of benzylaminopurine before and during water deficit on herbage production and quality


Lee, JM and Elborough, K and Whittaker, D and Donaghy, DJ and Roche, JR, Effect of surface application of benzylaminopurine before and during water deficit on herbage production and quality, Australian Journal of Experimental Agriculture, 48, (9) pp. 1232-1236. ISSN 0816-1089 (2008) [Refereed Article]

DOI: doi:10.1071/EA07075


Insufficient water availability is one of the most serious environmental stresses for a plant and can be a major limitation to herbage production in many regions. Plant hormones, such as cytokinins, have been reported to reduce the detrimental effects of low water availability in many different plant species. However, there is little research available concerning the effect on pasture grasses. The aim of the present study was to quantify the effect of surface applications of 6-benzylaminopurine (BAP) before and during water deficit on herbage growth and quality of perennial ryegrass-white clover pastures. Pastures fertilised with BAP were compared with unfertilised pastures and pastures receiving nitrogen. Exogenous BAP application did not significantly affect herbage production or quality relative to unfertilised pastures. Nitrogen fertiliser increased total herbage production, but had little effect on herbage quality compared with BAP. The failure of surface applications of exogenous BAP to improve herbage production or quality suggests that it is not an appropriate method to enhance plant tolerance to water deficit at the concentration applied in this study. © CSIRO 2008.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Crop and pasture production
Research Field:Agronomy
Objective Division:Animal Production and Animal Primary Products
Objective Group:Pasture, browse and fodder crops
Objective Field:Sown pastures (excl. lucerne)
UTAS Author:Lee, JM (Mr Jenn Ming Lee)
UTAS Author:Donaghy, DJ (Associate Professor Danny Donaghy)
UTAS Author:Roche, JR (Dr John Roche)
ID Code:40949
Year Published:2008
Deposited By:Agricultural Science
Deposited On:2008-04-28
Last Modified:2009-11-10

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