Navigation Links
Plant hormone increases cotton yields in drought conditions
Date:3/10/2010

This release is available in Spanish.

A naturally occurring class of plant hormones called cytokinins has been found to help increase cotton yields during drought conditions, according to Agricultural Research Service (ARS) scientists.

Cytokinins promote cell division and growth in plants. In cotton, cytokinins stimulate the growth of the main plant stem and branches. Commercially produced cytokinins are routinely applied in apple and pistachio orchards to promote fruit growth.

John Burke, director of the ARS Cropping Systems Research Laboratory in Lubbock, Texas, found that applying cytokinins to cotton crops can increase yields in water-limited environments with reduced irrigation or no irrigation. Burke was granted a patent for his discovery.

Half of the U.S.-produced cotton is grown in the arid high plains of Texas. In addition to a short growing season, 60 to 65 percent of the acreage in the area is dry land and relies on rainfall for soil moisture. Young cotton seedlings have small root systems, making it difficult for them to reach available soil water. Cytokinins trick the young plant's water stress defenses, prompting the plant to quickly build a bigger root system to access deep soil moisture. They also stimulate the growth of a protective wax on the surface of the plant that helps reduce water loss.

Tests conducted by Burke found one application of cytokinins produced a 5 to 10 percent increase in yields under water-reduced conditions. Additionally, tests determined that cytokinins didn't help or hinder yields under fully irrigated or rainy conditions, making it safe for use in all weather environments. There is also no extra work involved for the grower because cytokinins can be applied when conducting normal weed-management practices early in the season.

To be effective, the cytokinins should be applied at a relatively low concentration to cotton seeds or to cotton plants at an early stage of development. ARS is working closely with commercial companies to make this material available to cotton growers in the future.


'/>"/>

Contact: Stephanie Yao
stephanie.yao@ars.usda.gov
301-504-1619
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Related biology news :

1. Plants discover the benefits of good neighbors in strategy against herbivores
2. CSHL-Mexican team coaxes sexually reproducing plant to brink of asexual reproduction
3. Asexual plant reproduction may seed new approach for agriculture
4. Study shows woody plant encroachment has increased stream flow in the Edwards Plateau
5. Researchers examine plants ability to identify, block invading bacteria
6. Genetically engineered tobacco plant cleans up environmental toxin
7. Climate may keep beautiful killer plant in check
8. New process yields high-energy-density, plant-based transportation fuel
9. Bone marrow cell transplants to benefit those with heart disease
10. DNA sequencing unlocks relationships among flowering plants
11. From carnivorous plants to the medicine cabinet?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/16/2016)... The global wearable medical device market, in terms of value, is ... billion in 2016, at a CAGR of 18.0% during the forecast ... Growth ... devices, launch of a growing number of smartphone-based healthcare apps compatible ... and increasing focus on physical fitness. Furthermore, growing ...
(Date:12/15/2016)... , Dec 15, 2016 ... Research and Markets has announced the addition ... offering. The report forecasts the global military biometrics market ... The report has been prepared based on an in-depth market ... and its growth prospects over the coming years. The report also includes ...
(Date:12/15/2016)... -- "Increase in mobile transactions is driving the growth ... is expected to grow from USD 4.03 billion in ... CAGR of 29.3% between 2016 and 2022. The market ... for smart devices, government initiatives, and increasing penetration of ... expected to grow at a high rate during the ...
Breaking Biology News(10 mins):
(Date:1/17/2017)... NEW YORK , Jan. 17, 2017 /PRNewswire/ ... to grow at a CAGR of around 7.5% ... billion by 2025. Some of the prominent trends ... population, growing incidences of diseases & graft transplant ... Based on Material the market is categorized into ...
(Date:1/17/2017)... 17, 2017 Noom Inc. , ... first to offer fully Spanish behavior change programs ... Spanish diabetes prevention and healthy weight management ... of lifestyle interventions among Hispanic Americans who are ... robust food database, program-specific curriculum content and program ...
(Date:1/17/2017)... ... January 17, 2017 , ... Pono Ola , a mind-body ... lifestyle, announced today the official launch of its much-anticipated Pono Board: a re-invented fitness ... , In development for over a year, the patented Pono Board is the world’s ...
(Date:1/17/2017)... , Jan. 17, 2017  On January 10 ... 35th Annual J.P. Morgan Healthcare Conference in ... D. Kittle, Jr. , spoke to pharmaceutical leaders and ... by ProclaRx to break down and destroy biofilms.  ... bacteria and prevent antibiotics and the body,s immune system ...
Breaking Biology Technology: