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AgEcon Search 2 records found Search took 0.06 seconds. 
1.
The development and promotion of improved crop varieties as well as efficient seed production, distribution, and marketing systems have contributed significantly to incre [...]
2003-11 | Report |
2.
Environmental changes in Pleistocene and the breeding of primitive agriculture in late Paleolithic Age are discussed. Natural environment in China has changed significant [...]
20 May 2009 | Journal Article |

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