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:7/20/2017)... , July 20, 2017 Delta (NYSE: DAL ... board any Delta aircraft at Reagan Washington National Airport (DCA). ... Delta launches biometrics to ... Delta,s biometric ... Sky Club is now integrated into the boarding process to allow ...
(Date:6/14/2017)... PARIS , June 15, 2017  IBM (NYSE: IBM ... the international tech event dedicated to developing collaboration between startups ... on June 15-17. During the event, nine startups will ... deliver value in various industries. ... in the international market, with a 30 percent increase in ...
(Date:5/16/2017)... --  Bridge Patient Portal , an enterprise patient ... Systems , an electronic medical record solutions developer ... a partnership to build an interface between the ... products, including Centricity Practice Solution (CPS), Centricity Business ... integrations will allow healthcare delivery networks using GE ...
Breaking Biology News(10 mins):
(Date:8/16/2017)... and OXFORD, England , Aug. 16, ... consortium for biotech executive search and leadership development, and Virdis ... sectors, have created an exclusive alliance that enables clients to ... "For our clients here in the ... unparalleled access to a diverse population of leadership talent throughout ...
(Date:8/15/2017)... ... August 15, 2017 , ... Pittcon is ... for analytical and scientific instruments. This year’s symposium, organized by the Pittcon 2018 ... Spectrometry for Bioanalytical Applications.” This dynamic presentation will discuss novel ionization processes, high ...
(Date:8/15/2017)... ... August 15, 2017 , ... Coffea arabica ... biotic and abiotic factors. During this educational webinar, participants will learn about the ... as gain a better understanding of how genomics is important for coffee breeding ...
(Date:8/14/2017)... ... August 14, 2017 , ... The Conference Forum ... event, which will take place on September 6, 2017 at the Marriott Copley Place ... Head of Experimental Medicine, Informatics, and Regulatory Strategy, Pfizer Innovative Research Lab, Pfizer, who ...
Breaking Biology Technology: