Featured Research

from universities, journals, and other organizations

Pickleweed Tolerates Irrigation With Seawater And High Levels Of Boron

Date:
October 8, 2008
Source:
Soil Science Society of America
Summary:
Researchers have discovered that reusing saline drainage water and applying it to salt-tolerant crops in California's San Joaquin Valley can help reduce the environmental impact of excess drainage volumes. The study focused on pickleweed, sold in European markets as a salad ingredients, and its ability to tolerate irrigation with seawater and drainage water with high concentrations of boron.

Reuse of agricultural drainage water (DW) for irrigation is one of the few on-farm water management options available to growers on the west side of California’s San Joaquin Valley (SJV) for reducing drainage water volumes (San Joaquin Valley Drainage Implementation Program, 2000).

Management strategies that reduce drainage volumes are attractive because they would reduce the area required for environmentally sensitive evaporation ponds and lower the costs associated with disposal of the final effluent. Moreover, reductions in drainage volume would reduce the amount of trace elements (Se, B and Mo) and nutrients reaching the San Joaquin River and would help grower’s meet newly established targets for total maximum daily loads (TMDLs).

In sequential reuse systems, saline drainage water is sequentially applied on progressively more salt-tolerant crops where application of concentrated effluents to halophytes is the final step in the sequence prior to disposal or treatment. However the effectiveness of halophytes in reducing drainage volume is dependent upon their ability to tolerate extremely high levels of salinity and boron over the long term, maintain high rates of evapotranspiration, and thrive in saline-sodic conditions with poor physical conditions.

Grattan et al. conducted greenhouse experiments with Pickleweed, Salicornia bigelovii Torr., a halophyte native to North American coasts and arguably one of the most salt-tolerant vascular plants. It has also sold in European markets as green tips used in salads and cooking and its seeds produce oil that is high in polyunsaturated fat.

The authors found that S. bigelovii grow very well over a range of salinity treatments (19–52 dS/m) comprised of either seawater or hyper-saline drainage water. Moreover, the plants were also able to tolerate high concentrations of boron (28 mg/L), an important constituent found in drainage water. The most remarkable find for Grattan and co-investigators was that evapotranspiration (ET) rates from these plants exceeded that lost from an evaporation pan by 1.5 to 2.5 times. Grattan and co-workers also developed a method to separate evaporation and transpiration by accounting for the changes in the isotopic signature of water in the reservoir due to evaporation. They found that high ET rates were due primarily to high transpiration rates (> 78% of ET).

“This finding is somewhat surprising considering this halophyte has no true leaves,” commented Grattan. Although some challenges remain regarding the consistent establishment of S. bigelovii under field conditions, these data indicate that hypersaline drainage water, characteristic of California’s Westside of the San Joaquin Valley, can be used to irrigate this halophyte and substantially reduce drainage volumes.


Story Source:

The above story is based on materials provided by Soil Science Society of America. Note: Materials may be edited for content and length.


Journal Reference:

  1. Grattan, S. R., Benes, S. E., Peters, D. W., Diaz, F. Feasibility of Irrigating Pickleweed (Salicornia bigelovii. Torr) with Hyper-saline Drainage Water. Journal of Environmental Quality, 2008; 37 (5 supplement): S-149 DOI: 10.2134/jeq2007.0450

Cite This Page:

Soil Science Society of America. "Pickleweed Tolerates Irrigation With Seawater And High Levels Of Boron." ScienceDaily. ScienceDaily, 8 October 2008. <www.sciencedaily.com/releases/2008/10/081008114406.htm>.
Soil Science Society of America. (2008, October 8). Pickleweed Tolerates Irrigation With Seawater And High Levels Of Boron. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2008/10/081008114406.htm
Soil Science Society of America. "Pickleweed Tolerates Irrigation With Seawater And High Levels Of Boron." ScienceDaily. www.sciencedaily.com/releases/2008/10/081008114406.htm (accessed July 22, 2014).

Share This




More Plants & Animals News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Michigan Plant's Goal: Flower and Die

Michigan Plant's Goal: Flower and Die

AP (July 22, 2014) An 80-year-old agave plant, which is blooming for the first and only time at a University of Michigan conservatory, will die when it's done (July 22) Video provided by AP
Powered by NewsLook.com
San Diego Zoo Welcomes New, Rare Rhino Calf

San Diego Zoo Welcomes New, Rare Rhino Calf

Reuters - US Online Video (July 21, 2014) An endangered black rhino baby is the newest resident at the San Diego Zoo. Sasha Salama reports. Video provided by Reuters
Powered by NewsLook.com
Shark Sightings a Big Catch for Cape Tourism

Shark Sightings a Big Catch for Cape Tourism

AP (July 21, 2014) A rise in shark sightings along the shores of Chatham, Massachusetts is driving a surge of eager vacationers to the beach town looking to catch a glimpse of a great white. (July 21) Video provided by AP
Powered by NewsLook.com
$23.6 Billion Awarded To Widow In Smoking Lawsuit

$23.6 Billion Awarded To Widow In Smoking Lawsuit

Newsy (July 20, 2014) Cynthia Robinson claims R.J. Reynolds Tobacco Company hid the health and addiction risks of its products, leading to the death of her husband in 1996. Video provided by Newsy
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