Featured Research

from universities, journals, and other organizations

Vineyard records link early grape ripening to climate change

Date:
March 15, 2012
Source:
CSIRO Australia
Summary:
By using decades of vineyard records, scientists have for the first time been able to attribute early ripening of wine grapes to climate warming and declines in soil water content.

Pinot Noir. Main Ridge Estate vineyard, Mornington Peninsula Victoria, Australia.
Credit: Dr Leanne Webb

By using decades of vineyard records, scientists have for the first time been able to attribute early ripening of wine grapes to climate warming and declines in soil water content. The study reveals that management factors has also influenced the shift, offering hope for growers to develop adaptation strategies.

The study was published in Nature Climate Change and was done by scientists from the University of Melbourne and the CSIRO.

Climate scientist and viticulturist Dr Leanne Webb, said while trends towards earlier ripening have been widely reported, a detailed study of the underlying causes of these shifts had not been done before.

"Changes to the timing of biological phenomena such as flowering and emergence of butterflies have been noted on many continents over recent decades," Dr Webb said.

"In some wine growing regions such as southern Australia, grape maturation dates have advanced about eight days per decade, with earlier maturing potentially impacting wine-grape quality and regional branding.

"This has been a study of potential influences on wine-grape maturity trends on a continental scale. On average, over the period 1985-2009, early ripening of Australian wine grapes are equally attributable to climate warming, declines in soil water content, and lower crop yields. An additional influence from changing management practices is also likely."

Human-induced climate change is a driver of grape ripening, given that previous studies have linked Australian temperature, and possibly rainfall to increasing greenhouse gas concentrations.

"The study will give wine growers a head start in developing adaptation strategies to meet evolving temperature and soil moisture shift," Dr Webb said.

"These strategies could include managing soil moisture content through increasing irrigation or mulching, vine rootstock choice, or managing crop yield.

"This study analysed harvest diaries from southern Australia for periods of up to 64 years. In contrast to previous studies that use harvest dates to indicate grape maturity, the research team examined berry-sugar concentration records to detect the trends to earlier wine grape ripening.

"The study centered on 10 wine growing sites in four states. These sites had records of observations for periods of more than 25 years. Nine of the ten sites had trends to earlier ripening. Only one Margaret River vineyard in Western Australia ripened later.

"In addition to informing the wine industry of adaptation options, we believe our study is also relevant to many other agricultural and non-agricultural sectors where trends in timing of biological phases have been detected.''

The paper was supported through the Australian Grape and Wine Research and Development Corporation and CSIRO's Climate Adaptation National Research Flagship.


Story Source:

The above story is based on materials provided by CSIRO Australia. Note: Materials may be edited for content and length.


Journal Reference:

  1. L. B. Webb, P. H. Whetton, J. Bhend, R. Darbyshire, P. R. Briggs, E. W. R. Barlow. Earlier wine-grape ripening driven by climatic warming and drying and management practices. Nature Climate Change, 2012; DOI: 10.1038/nclimate1417

Cite This Page:

CSIRO Australia. "Vineyard records link early grape ripening to climate change." ScienceDaily. ScienceDaily, 15 March 2012. <www.sciencedaily.com/releases/2012/03/120315095803.htm>.
CSIRO Australia. (2012, March 15). Vineyard records link early grape ripening to climate change. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2012/03/120315095803.htm
CSIRO Australia. "Vineyard records link early grape ripening to climate change." ScienceDaily. www.sciencedaily.com/releases/2012/03/120315095803.htm (accessed September 17, 2014).

Share This



More Plants & Animals News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Tobacco Farmers Thrive Amid Challenges

Some Tobacco Farmers Thrive Amid Challenges

AP (Sep. 16, 2014) The South's tobacco country is surviving, and even thriving in some cases, as demand overseas keeps growers in the fields of one of America's oldest cash crops. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

Scientists Given Rare Glimpse of 350-Kilo Colossal Squid

AFP (Sep. 16, 2014) Scientists say a female colossal squid weighing an estimated 350 kilograms (770 lbs) and thought to be only the second intact specimen ever found was carrying eggs when discovered in the Antarctic. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Raw: Scientists Examine Colossal Squid

Raw: Scientists Examine Colossal Squid

AP (Sep. 16, 2014) Squid experts in New Zealand thawed and examined an unusual catch on Tuesday: a colossal squid. It was captured in Antarctica's remote Ross Sea in December last year and has been frozen for eight months. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

Ivorians Abandon Monkey Pets in Fear Over Ebola Virus

AFP (Sep. 16, 2014) Since the arrival of Ebola in Ivory Coast, Ivorians have been abandoning their pets, particularly monkeys, in the fear that they may transmit the virus. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins