Developing perennial grains
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Developing Perennial Grains. Lee DeHaan The Land Institute. No-till cropland Central Iowa J. Scheibel 2013. 2.8 cm of soil loss reduces productivity by about 7%, due primarily to loss of water infiltration, water holding capacity and nutrient supply Pimental et al. 2004.

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Developing Perennial Grains

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Developing perennial grains

Developing Perennial Grains

Lee DeHaan

The Land Institute


Developing perennial grains

No-till cropland

Central Iowa

J. Scheibel 2013

2.8 cm of soil loss reduces productivity by about 7%, due primarily to loss of water infiltration, water holding capacity and nutrient supply

Pimental et al. 2004


Developing perennial grains

Just developing new software will never make a laptop


Developing perennial grains

20% Kernza


Developing perennial grains

Field Performance of Starting and Selected Kernza Plants

Forage Varieties


Developing perennial grains

168 florets

105 florets

50 florets


Developing perennial grains

Kernza plots in Michigan nearly eliminate leaching of nitrates into the ground water.

Organic fertilizer system has less leaching, but the annual wheat still “leaks” much more than the perennial Kernza.

Nitrate concentration in water below the root zone (mg/L)

Culman et al. 2013


Developing perennial grains

B1126F3


Developing perennial grains

Ray florets per head:

  • 2006 average= 30, max = 42

  • 2008 cross >45; 2010 cross if > 60;

  • 2012 average = 52, max = 164


Developing perennial grains

Silphium integrifolium

Helianthus maxamiliani


Developing perennial grains

Sorghum halepense

Sorghum bicolor


Perennial rice

PerennialRice

  • Soil erosion in uplands of southeast Asia has been a serious problem that led to the project of developing perennial upland rice at IRRI (IRRI 1989)

Upland Rice in Yunnan, China


Developing perennial grains

Also could aid aerobic rice production


Developing perennial grains

Yields of PR 23 perennial (ratooning) rice over 3 harvests (2 years)


Developing perennial grains

www.landinstitute.org


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