Chicory (Cichorium intybus L.) can beat the heat during summer drought in southeast Australian dairying regions

Paper

Langworthy, Adam, Pembleton, Keith, Rawnsley, Richard, Harrison, Matthew, Lane, Peter, Henry, David and Corkrey, Ross. 2015. "Chicory (Cichorium intybus L.) can beat the heat during summer drought in southeast Australian dairying regions." 17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015). Hobart, Australia 20 - 24 Sep 2015 Australia.
Paper/Presentation Title

Chicory (Cichorium intybus L.) can beat the heat during summer drought in southeast Australian dairying regions

Presentation TypePaper
AuthorsLangworthy, Adam, Pembleton, Keith, Rawnsley, Richard, Harrison, Matthew, Lane, Peter, Henry, David and Corkrey, Ross
Journal or Proceedings TitleProceedings of the 17th Australian Agronomy Conference (AAC 2015)
Number of Pages4
Year2015
Place of PublicationAustralia
Web Address (URL) of Paperhttp://www.agronomyaustraliaproceedings.org/images/sampledata/2015_Conference/pdf/agronomy2015final00191.pdf
Web Address (URL) of Conference Proceedingshttp://www.agronomyaustraliaproceedings.org/index.php/conference-2015-homepage/9-2015/560-2015indexalphaorder
Conference/Event17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015)
Event Details
17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015)
Parent
Building Productive, Diverse and Sustainable Landscapes
Event Date
20 to end of 24 Sep 2015
Event Location
Hobart, Australia
Abstract

Perennial ryegrass (Lolium perenne L.) is the major sown pasture species in southeast Australian dairying regions. Ryegrass is not only intolerant of soil moisture deficits, but heat waves, which increasingly present a challenge to summer home-grown feed production. To address this challenge, a screening experiment was undertaken to identify temperate perennial forage species, better adapted to combined heat wave stress and soil moisture deficits. Responses of ten perennial forages to optimal and heat wave temperature regimes (day/ night ambient temperatures of 23/15˚C and 38/26˚C) were evaluated under greenhouse conditions. The effect of moisture availability (optimal watering or no water) and the recovery capacity of plants grown in optimal conditions (day/night ambient temperature regime of 23/16˚C; optimal watering) for 18 d after stress periods ceased, were also examined. Chicory (Cichorium intybus L., cv. Grasslands Puna) had a superior tolerance to heat stress and moisture deficit compared with ryegrass cv. Samson. Chicory not only maintained live above-ground tissue after exposure to the combined stress for 18 d, but increased in yield by 46% during the recovery period. In contrast at 12 d, live tissue was not detectable in the ryegrass, with yield measurements indicating plants unable to recover. Results suggest that under dryland conditions, chicory may enable a greater level of home-grown feed production to resume following an extended heat wave, than possible with ryegrass.

KeywordsHeatwave; high temperature; high temperature; climate change; grazing; dry matter
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020300403. Agronomy
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Byline AffiliationsUniversity of Tasmania
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia
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Pembleton, K. G.. 2015. "Plantain and chicory could potentially complement the perennial ryegrass dominant dairy feedbase." 17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015). Hobart, Australia 20 - 24 Sep 2015 Hobart.
Comparing within paddock yield variability of perennial ryegrass monocultures and perennial ryegrass, white clover and plantain mixtures using yield mapping
McLaren, David K. and Pembleton, Keith G.. 2015. "Comparing within paddock yield variability of perennial ryegrass monocultures and perennial ryegrass, white clover and plantain mixtures using yield mapping." 17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015). Hobart, Australia 20 - 24 Sep 2015 Australia.
Effect of defoliation management on expression of the ‘high sugar’ cultivar trait in Tasmania
Turner, Lydia R., Donaghy, Daniel J, Pembleton, Keith G. and Rawnsley, Richard P. 2013. "Effect of defoliation management on expression of the ‘high sugar’ cultivar trait in Tasmania." 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities. Sydney, Australia 15 - 19 Sep 2013 Australia.
Effect of nitrogen fertiliser applications on botanical composition
Turner, Lydia R., Donaghy, Daniel J., Pembleton, Keith G. and Rawnsley, Richard P.. 2013. "Effect of nitrogen fertiliser applications on botanical composition." 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities. Sydney, Australia 15 - 19 Sep 2013 Australia.
Impact of grazing on the silage yield of forage oat crops
Pembleton, Keith G., Harrison, Matthew T. and Rawnsley, Richard P.. 2013. "Impact of grazing on the silage yield of forage oat crops." 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities. Sydney, Australia 15 - 19 Sep 2013 Australia.
Early sowing and irrigating of rape crops in cool temperate environments boosts forage yield potential
Harrison, Matthew T., Pembleton, Keith G. and Rawnsley, Richard P.. 2013. "Early sowing and irrigating of rape crops in cool temperate environments boosts forage yield potential." 22nd International Grassland Congress: Revitalising Grasslands to Sustain Our Communities. Sydney, Australia 15 - 19 Sep 2013 Australia.
Frost risk associated with growing maize for silage on Tasmanian dairy farms
Pembleton, Keith. 2012. "Frost risk associated with growing maize for silage on Tasmanian dairy farms." Rawnsley RP (ed.) 16th Australian Agronomy Conference: Capturing Opportunities and Overcoming Obstacles in Australian Agronomy (ASA 2012). Armidale, Australia 14 - 18 Oct 2012 Armidale, Australia.
Partitioning of taproot constituents and crown bud development are affected by water deficit in regrowing alfalfa (Medicago sativa L.)
Pembleton, Keith G., Volenec, Jeffrey J., Rawnsley, Richard P. and Donaghy, Daniel J.. 2010. "Partitioning of taproot constituents and crown bud development are affected by water deficit in regrowing alfalfa (Medicago sativa L.)." Crop Science: a journal serving the international community of crop scientists. 50 (3), pp. 989-999. https://doi.org/10.2135/cropsci2009.03.0140
Yield, yield components and shoot morphology of four contrasting lucerne (Medicago sativa) cultivars grown in three cool temperate environments
Pembleton, K. G., Donaghy, D. J., Volenec, J. J., Smith, R. S. and Rawnsley, R. P.. 2010. "Yield, yield components and shoot morphology of four contrasting lucerne (Medicago sativa) cultivars grown in three cool temperate environments." Crop and Pasture Science. 61 (6), pp. 503-511. https://doi.org/10.1071/CP09351
Genotype by environment interactions of lucerne (Medicago sativa L.) in a cool temperate climate
Pembleton, K. G., Smith, R. S., Rawnsley, R. P., Donaghy, D. J. and Humphries, A. W.. 2010. "Genotype by environment interactions of lucerne (Medicago sativa L.) in a cool temperate climate." Crop and Pasture Science. 61 (6), pp. 493-502. https://doi.org/10.1071/CP09269
Effect of summer irrigation on seasonal changes in taproot reserves and the expression of winter dormancy/activity in four contrasting lucerne cultivars
Pembleton, K. G., Cunningham, S. M. and Volenec, J. J.. 2010. "Effect of summer irrigation on seasonal changes in taproot reserves and the expression of winter dormancy/activity in four contrasting lucerne cultivars." Crop and Pasture Science. 61 (11), pp. 873 - 884. https://doi.org/10.1071/CP10030
Utilising leaf number as an indicator for defoliation to restrict stem growth in rhodes grass (Chloris gayana) cv. Callide
Pembleton, K.G., Lowe, K.F. and Bahnisch, L.M.. 2009. "Utilising leaf number as an indicator for defoliation to restrict stem growth in rhodes grass (Chloris gayana) cv. Callide." Tropical Grasslands. 43, pp. 79-85.
Water deficit alters canopy structure but not photosynthesis in regrowing alfalfa (Medicago sativa L.)
Pembleton, Keith, Rawnsley, Richard P., Donaghy, Daniel J. and Volenec, Jeffrey J.. 2009. "Water deficit alters canopy structure but not photosynthesis in regrowing alfalfa (Medicago sativa L.)." Crop Science: a journal serving the international community of crop scientists. 49 (2), pp. 722-731. https://doi.org/10.2135/cropsci2008.08.0456
Effect of defoliation interval and height on the growth and quality of Arachis pintoi cv. Amarillo
Sinclair, K., Lowe, K.F. and Pembleton, K.G.. 2007. "Effect of defoliation interval and height on the growth and quality of Arachis pintoi cv. Amarillo." Tropical Grasslands. 41 (4), pp. 260-268.
Potential of tropical forages for the Tasmanian dairy industry
Pembleton, Keith, Rawnsley, Richard, Donaghy, Danny and Chamberlain, Peter. 2006. "Potential of tropical forages for the Tasmanian dairy industry." 13th Australian Agronomy Conference 2006. Perth, Australia 10 - 14 Sep 2006 Australia. Australian Society of Agronomy.