Nature Climate Change, 3: 497 - 501 Lobell, D. B., J. I. Ortiz - Monasterio, G. P. Asner, P. A. Matson, R. L. Naylor and W. P. Falcon, 2005: Analysis
of wheat yield and climatic trends in Mexico.
More than a third
of wheat yield can be lost due to STB and it is the most significant disease of wheat in Europe and many other temperate climates.
Where CO2 is relevant is in explaining much of growth in crop yields — I have just done a test using a quadratic function on CO2, temperature, and rainfall which produces an amazingly accurate hindcast
of wheat yields in Moree NSW 1965 - 1999 using just those 3 variables.
Not exact matches
Farmers are earning huge profits on their
wheat, soybeans, cotton and other crops; strong demand for (and relatively tight supplies
of) grain, oilseeds and other key food inputs encouraged them to use large volumes
of fertilizer (notably potash, phosphate and nitrogen) to boost their crop
yields.
If the spring and summer don't bring some wet relief, the U.S. might well face another year
of very low
yields after last year's summer drought — with the difference that global
wheat, corn and soybean stocks this time around would already be depleted.
The Great Plains and the Midwestern part
of the United States have experienced extremely cold temperatures during the early spring as that is causing some concerns on crop
yields as I do think
wheat prices could test the $ 5 level possibly in next week's trade.
Research institutions successfully developed new varieties
of rice and
wheat which were capable
of much higher
yields per acre than any
of the then - known varieties.
The wild relatives
of commercial varieties, ranging from tomatoes to
wheat, have provided genes worth billions
of dollars in higher crop
yields.
Is it from the way we've gotten higher
wheat crop
yields through the magic
of modern chemestry?
Oh, and, by the way, some
of why people have seeming
wheat issues are that the farmer's triple spray the
wheat with Round Up as a means
of harvesting maximum
yield.
Yield: 2 bread loaves Recipe by: Shane Ruoss This is a brief description
of the naturally leavened, 100 % whole
wheat bread we make using Bluebird Grain flours.
In order to create
wheat that
yields more grain, resist fungal diseases and pest attacks, improves the ease
of harvesting (mechanically) and meets the unrealistic demands
of industrial milling and mechanized baking methods, science has intervened and it's our health that's paying the price.
A small amount
of coconut flour provides a high
yield of baked goods, relative to
wheat flour.
Once the predominant
wheat of Kansas, it was eventually replaced with modern higher -
yielding varieties
of wheat by the 1940s.
Yield: 12 muffins Ingredients: 1 1/2 cups freshly ground or soaked spelt, kamut or whole
wheat flour 1/2 cup water mixed with 1 tablespoon
of yogurt 1 cup blueberries, fresh or frozen 1 egg, lightly beaten 1/4 teaspoon fine Celtic sea salt 1/2 cup extra-virgin coconut oil 1/3 cup honey 2 teaspoons baking powder 1 tablespoon fresh grated ginger 1 teaspoon ground ginger
Shepard cautions people that her flour is designed to work on a 1 - to - 1 exchange with
wheat flour in «normal» recipes and that substituting her blend in recipes calling for other gluten - free flours might not
yield good results since many recipes compensate for the bad taste
of the gluten - free flour by adding extra sugar and butter.
Yield: 32 Servings 3 cups
of old - fashioned rolled oats 1/2 cup almond flour 1/4 cup sorghum flour or whole
wheat flour 1/2 cup oat bran 1/2 cup ground flaxseed 1/2 cup roasted, chopped almonds 1/2 cup dried blueberries 1/2 cup chopped, dried cranberries 1/2 teaspoon salt 1 cup agave nectar 1/3 cup natural almond butter, stirred well before measuring 1/4 cup Almond Breeze 2 teaspoons pure vanilla extract Directions Preheat the oven to 325 °F.
Then there was exciting news from India's poorest state, Bihar (pop 100 million, and 50 %
of families in poverty), where the application
of what's called the System
of Rice / Root Intensification (SRI) has «dramatically increased
yields with
wheat, potatoes, sugar cane, yams, tomatoes, garlic, aubergine and many other crops», according to the Guardian newspaper.
We discuss future opportunities to improve
wheat yields in variable rainfed environments in the light
of climate change.
For example, mixtures
of «heritage»
wheat varieties grown together can lead to increased
yields, better resilience and enhanced soils.
None
of the strategies tested offset the expected fall in
wheat production, but the study identified directions for
wheat breeding (canopy vigour and root characteristics) and management to minimise
yield losses in a hotter and drier climate.
Brent Rageth from Rageth Farm in Byron, Wyoming has worked with Wyoming Whiskey from the start to select strains
of non-GMO corn,
wheat, barley, and winter rye for specific starch and sugar
yields, the building blocks
of bourbon making.
This delicate handcrafted blend
of our own nutty Einka berries (Einkorn
wheat) and peppery french lentils
yields a full bodied meal with endless possibilities.
Rising temperatures will slash
yields for rice,
wheat and corn throughout the developing world, exacerbating food price volatility and increasing the number
of undernourished people, the report warns.
Yields of this staple grain have increased exponentially since the 1950s because better farming practices and new
wheat breeds have more than made up for those hot Julys.
Planning meetings for the Global Seed Vault in Norway spawned the idea
of looking at average summer temperatures, which climate models can project relatively reliably and which have a large impact on crop
yields — between 2.5 and 16 percent less
wheat, corn, soy or other crops are produced for every 1.8 — degree F (1 — degree C) rise.
Without better crop varieties or other agricultural technology improvements, irrigated
wheat yields, for example, will fall at least 20 percent by 2050 as a result
of global warming, and south Asia as well as parts
of sub-Saharan Africa will face the worst effects.
The second objective was to use the evaluated modules to assess the long - term effects
of growing winter
wheat as a cover crop on water balances and seed cotton
yield under irrigated and dryland conditions, Ale said.
Without adaptation, some Midwestern and Southern counties could see
yield declines
of more than 10 percent over the next five to 25 years if they continue to sow corn,
wheat, soy and cotton, the report says.
By that time, CIMMYT predicts, almost a quarter
of South Asia's
wheat yield could be wiped out by global warming.
It finds that heat stress concurrent with drought or water excess can explain about 40 %
of the changes in
wheat yields from one year to another.
The high overall activity
of resistance genes did not cause any negative effects for the development
of the
wheat or its
yield.
«If you grow lines
of wheat that are not adapted to a specific environment, you will not get a very high
yield.»
Mitch Tuinstra, a professor
of plant breeding and genetics at Purdue, likened Schulz's work with corn to what Norman Borlaug did for the development
of high -
yield wheat crops in the 1960s and 1970s.
Wheat yields could be significantly increased thanks to varieties with a superior form
of a common enzyme, according to new research.
The two centers are already collaborating on improving
yields of rice and
wheat in the Indo - Ganges plain.
Two
of the most efficient were Rubisco from plants known as Aegilops cylindrica (jointed goatgrass) and Hordeum vulgare (barley), which both showed promising Rubisco catalytic properties that should be explored in the context
of improving photosynthesis, and ultimately grain
yield, in
wheat.
It also implies that the apparent loss
of genetic diversity following the introduction
of high -
yielding Green Revolution
wheat and rice varieties in the 1960s and 1970s, and attending the rapid adoption
of superior GM crops today, is far from a new phenomenon.
One shovelful
yielded material later determined to be ancient
wheat, prompting Pumpelly to declare that Central Asian oases were the original source
of domesticated grain.
Businesses, consultants and scientists sometimes ask themselves whether plant breeders are still able to raise the
yield of crops such as winter
wheat and potatoes today.
Over the period under review, the
yield of the breeds
of winter
wheat and spring barley appearing in the market for the first time increased by around one per cent per year.
Using conventional breeding techniques, Borlaug's crucial breakthrough was crossing stubby - stalked dwarf
wheat with high -
yielding varieties, resulting in a plant that was both extremely productive — when given ample fertilizer — and strong enough to hold up under the weight
of large clusters
of grain.
Subsequently cited in 54 papers, the Science study showed that even using the lower end
of 23 climate models suggested that in the tropics at the end
of the century, «the hottest seasons on record will represent the future norm in many locations,» with the devastating impacts on
wheat and rice
yields.
(The worrying precedents are a drought in 1988 to 1989 that cut
yields of corn by an estimated 12 % worldwide and soybeans by 8.5 %, and a 2002 to 2003 drought that afflicted
wheat and rice to a lesser extent.)
This research quantifies the impact
of weather, diseases and new
wheat varieties on
yields.
Their results showed that from 1985 through 2011,
wheat breeding programs boosted average
wheat yields by 13 bushels per acre, or 0.51 bushel each year, for a total increase
of 26 percent.
Scientists at Aarhus University have discovered that fungi associated with plant roots may improve growth and
yield of drought - stressed
wheat.
Based on these test results, scientists subsequently applied the multi-model ensemble to estimate
wheat yields under increasing temperature in the main cultivation areas
of the world.
«Although
wheat yields in the UK and World increased dramatically in the latter half
of the twentieth century, increases this century have proved elusive.
Worldwide this would correspond to 42 million tons
of yield reduction, which equals a quarter
of current global
wheat trade.