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:1/6/2017)... 5, 2017  Delta ID Inc., a leader in ... for automotive at CESĀ® 2017. Delta ID has collaborated ... demonstrate the use of iris scanning as a secure, ... driver in a car, and as a way to ... Delta ID and Gentex will demonstrate (booth ...
(Date:12/22/2016)... SuperCom (NASDAQ:   SPCB ), ... HealthCare, and Finance sectors announced today that Leaders in Community Alternatives ... deploy a community-based supportive services program to reduce recidivism in a ... its presence in the state. ... This new program, which is expected to commence in ...
(Date:12/16/2016)... Research and Markets has announced the addition of the ... report to their offering. ... The biometric vehicle access system market, in terms of ... 2016 to 2021. The market is estimated to be USD 442.7 ... 2021. The growth of the biometric vehicle access system market is ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... 2017 /PRNewswire -- WuXi AppTec, a leading global ... technology platform, today announced that it has acquired ... drug discovery contract research organization (CRO). After completion ... subsidiary of WuXi, and will continue to focus ... services. The acquisition will further strengthen WuXi,s R&D ...
(Date:1/19/2017)... 19, 2017  ArmaGen, Inc., today announced that ... as chief executive officer, as well as a ... to ArmaGen more than 17 years of executive ... of biotherapeutics and pharmaceuticals. "Mathias ... experience and skillset necessary to lead ArmaGen to ...
(Date:1/19/2017)... ... January 19, 2017 , ... DaVita Clinical Research ... drug and device development, and Prism Clinical Research , a leader in ... Verified Clinical Trials (VCT) has been selected by both companies as ...
(Date:1/18/2017)... ... January 18, 2017 , ... Opal Kelly, ... USB or PCI Express, announced the ZEM5310 USB 3.0 FPGA Module, combining a ... compact business-card sized form factor suitable for prototyping, testing, and production-ready integration. The ...
Breaking Biology Technology: