• "The remaining 88 percent of the variation from one center to another are unmeasured factors, that we don't quite know what those factors are."

    VOA: standard.2010.07.14

  • Again,where I think there is at least a moderate impact from genetic variation."

    VOA: standard.2010.07.14

  • are very similar genetically. "And that's a real problem when you're trying to overcome new insect or disease threats or pressures, or trying to breed a plant that's more water efficient, or even finding genetic variation for water production."

    VOA: standard.2010.02.01

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