Navigation Links
Improving nitrogen use efficiency lessens environmental impact
Date:12/30/2010

ITALY Most agricultural crops require large quantities of nitrate-rich fertilizer to realize optimal yields. The dilemma for growers is finding ways to balance the amount of nitrogen needed for production while minimizing potentially harmful nitrates that can leach into ground and surface waters. Increased interest in environmentally beneficial "low-input" approaches is challenging researchers to identify genotypes that have a characteristic called "high nutrient use efficiency", or NUE. Using vegetable types with high NUE could help growers lessen environmental impacts while maintaining high crop yields. A new study reported on improved NUE traits that resulted from grafting melon plants onto commercial rootstocks.

Scientist Giuseppe Colla from the University of Tuscia and colleagues published the research in HortScience.The researchers evaluated a "rapid and economical" methodology for screening melon rootstocks for NUE using two experiments. In the first experiment melon plants, either ungrafted or grafted onto four commercial rootstocks grown in hydroponics, were compared. The second experiment was designed to confirm whether the use of a selected rootstock with high NUE could improve crop performance and NUE of grafted melon plants under field conditions.

The researchers observed that NUE traits were improved by grafting melon plants onto commercial rootstocks; grafted plants needed less nitrate in the nutrient solution to reach half maximum shoot dry weight. "In addition, the higher nitrate reductase activity of grafted plants under low nitrate conditions confirms that certain rootstocks have the potential to improve the NUE of grafted plants", they noted. In the second experiment, carried out under open field conditions, increasing the fertilization rates increased the total and marketable yields of melon plants, while decreasing NUE. When averaged over nitrogen levels, the marketable yield, NUE, and N uptake efficiency were higher by 9%, 11.8%, and 16.3%, respectively, in grafted plants than in ungrafted plants.

"We found that the use of melon grafted on selected rootstock represents a potential strategy for increasing yield and NUE and coping with soil fertility problems under low-input conditions", the authors concluded.


'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Related biology news :

1. High blood sugars impact on immune system holds clues to improving islet cell transplants
2. Greatest thing since sliced bread: New data offer important clues toward improving wheat yields
3. Improving livestock productivity in Honduras
4. Improving the odds
5. New patented technology for improving cardiac CTs receives NIH support
6. Improving the degradation of toxic hydrocarbons
7. Lengthening time a drug remains bound to a target may lead to improving diagnostics, therapy
8. Inventor honored for tech improving access to clean water, healthcare, and business development in India
9. Algae advances as a green alternative for improving water quality
10. Improving clinical use of stem cells to repair heart damage
11. A new tool for improving switchgrass
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... , Feb. 2, 2016 This ... the bioinformatic market by reviewing the recent advances ... tools that drive the field forward. Includes forecast ... Identify the challenges and opportunities that exist ... and software solution developers, as well as IT ...
(Date:2/1/2016)... 2016 Rising sales of consumer ... touchfree intuitive gesture control market size ... of consumer electronics coupled with new technological advancements to ... size through 2020   --> ... technological advancements to drive global touchfree intuitive gesture control ...
(Date:1/25/2016)... , Jan. 25, 2016   Unisys Corporation (NYSE: ... John F. Kennedy (JFK) International Airport, New York City ... (CBP) identify imposters attempting to enter the United States ... to them. pilot testing of the system at ... three terminals at JFK during January 2016. --> pilot ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... and GERMANTOWN, Maryland , February ... Prime Standard: QIA) today announced the introduction of more ... expression profiling, expanding QIAGEN,s portfolio of Sample to Insight ... to select from over 20,000 human genes and lncRNA ... genes, cellular phenotypes and disease processes. --> ...
(Date:2/11/2016)... ... February 11, 2016 , ... ... cutting-edge information focused on the development and manufacture of biopharmaceuticals and therapeutics, ... sponsor of the 2016 BioProcess International Awards – Recognizing Excellence in the ...
(Date:2/11/2016)... ... February 11, 2016 , ... Reichert Technologies, which has created ... pursue the highest level of accuracy and quality with the addition of two ... AR5 Refractometer. Accurate, reliable and tough enough for the most demanding applications, ...
(Date:2/10/2016)... Early-career researchers from ... , Uganda and Yemen ... nutrition   Indonesia , Nepal ... Yemen are being honored for their accomplishments in ... celebrated for mentoring young women scientists who are pursuing careers in agriculture, ...
Breaking Biology Technology: