In collaboration with researchers at Nanjing Agricultural University, Dr Tony Miller from the John Innes Centre has developed rice crops with an improved ability to manage their own pH levels, enabling them to take up significantly more nitrogen, iron and phosphorous from soil and increase yield by up to 54 percent.
Rice is a major crop, feeding almost 50 percent of the world’s population and has retained the ability to survive in changing environmental conditions. The crop is able to thrive in flooded paddy fields – where the soggy, anaerobic conditions favour the availability of ammonium – as well as in much drier, drained soil, where increased oxygen means more nitrate is available. Nitrogen fertilizer is a major cost in growing many cereal crops and its overuse has a negative environmental impact.
The nitrogen that all plants need to grow is typically available in the form of nitrate or ammonium ions in the soil, which are taken up by the plant roots. For the plant, getting the right balance of nitrate and ammonium is very important: too much ammonium and plant cells become alkaline; too much nitrate and they become acidic. Either way, upsetting the pH balance means the plant’s enzymes do not work as well, affecting plant health and crop yield.
Together with the partners in Nanjing, China, Dr Miller’s team has been working out how rice plants can maintain pH under these changing environments.
Rice contains a gene called OsNRT2.3, which creates a protein involved in nitrate transport. This one gene makes two slightly different versions of the protein: OsNRT2.3a and OsNRT2.3b. Following tests to determine the role of both versions of the protein, Dr Miller’s team found that OsNRT2.3b is able to switch nitrate transport on or off, depending on the internal pH of the plant cell.
When this ‘b’ protein was overexpressed in rice plants they were better able to buffer themselves against pH changes in their environment. This enabled them to take up much more nitrogen, as well as more iron and phosphorus. These rice plants gave a much higher yield of rice grain (up to 54 percent more yield), and their nitrogen use efficiency increased by up to 40 percent.
Dr Miller said:
“Now that we know this particular protein found in rice plants can greatly increase nitrogen efficiency and yields, we can begin to produce new varieties of rice and other crops. These findings bring us a significant step closer to being able to produce more of the world’s food with a lower environmental impact.”
The Latest on: Rice yield
via Google News
The Latest on: Rice yield
- Kogi: APPEALS begins distribution of N633m agro-alied incentives to women, rice farmerson June 26, 2020 at 7:15 pm
By Boluwaji Obahopo The Agro Processing, Productivity Enhancement and Livelihood Improvement Support, APPEALS has commenced the free distribution of agro -allied incentives for rice farmers in Kogi ...
- Impact of controlled-release urea on rice yield, nitrogen use efficiency and soil fertility in a single rice cropping systemon June 26, 2020 at 2:27 am
Overuse of nitrogen (N) fertilizer has led to low (NUE) and high N loss in single rice cropping systems in southeast China. Application of controlled-release urea ...
- REML And mREITs Offer High Yields Or A Chance For Gainson June 25, 2020 at 4:27 pm
I still believe that the macroeconomic conditions generally still favor mREITs and especially agency mREITs. We now know more about the prospects for many of th ...
- Could Treating Hypertension Without Side Effects be as Simple as Eating a Spoonful of Rice?on June 25, 2020 at 5:00 am
Researchers say eating just half a spoonful of newly developed transgenic rice could feasibly prevent and treat hypertension.
- The rise of rice in Nepalon June 24, 2020 at 12:42 am
It contributes 20% to the Agricultural Gross Domestic Product (AGDP) and more than 7% to the total GDP. But there is a huge rice yield gap – the difference between attainable yield and potential yield ...
- High yield of protein-rich forage rice achieved by soil amendment with composted sewage sludge and topdressing with treated wastewateron June 23, 2020 at 2:07 am
Aiming to promote low-cost production of protein-rich forage rice and resource recycling from wastewater treatment plants, a pot experiment was conducted to assess the possibility ...
- A Starchy Palm Tree Extract May Be Indonesia’s Answer to Riceon June 22, 2020 at 8:39 pm
Indonesia is betting on a natural starch extracted from tropical palm trees to cut its dependence on rice and ensure food security in the world’s fourth most-populous nation.
- Panel to focus on marketing rice, seedson June 22, 2020 at 7:27 pm
The government looks set to promote seven rice products and seed development as part of a marketing-led production strategy for 2020-2024.
- Soil profiling contributes to higher rice yieldson June 21, 2020 at 4:58 pm
The systematic profiling of the soil used for growing rice has almost doubled rice yield per hectare since it was launched in 2016.
- After rice, the UAE now plans to grow its own coffee and wheaton June 19, 2020 at 11:48 pm
According to a Global Agricultural Information Network 2019 report, “the UAE has a substantial number of foreign agricultural investments to produce food directly intended for t ...
via Bing News