This is a preview. Log in through your library . Abstract Common sunflower (Helianthus annuus L.) interference in onions (Allium cepa L. 'Yellow Granex PRR') was studied at different weed densities ...

This is a preview. Log in through your library . Abstract An in-row competition study was conducted in 1991 and 1992 near Silver Lake, KS to determine the relationship of noncultivated common ...

Researchers at CU are teasing out the modern-day sunflower's genetic history. Humans and sunflowers go way back. American Indians first domesticated the plant — prized for its seeds, oil and beauty — ...

They got it wrong! The sunflower, not the rose, should be our national flower. Now, I like roses, especially our native wild roses like the Carolina rose and the swamp rose. And I like old fashioned ...

My destination was Colonnade Arch, a scenic, buttressed alcove on the rim of the Green River Canyon, west of Canyonlands National Park. I was driving on a 37-mile long dirt road to my campsite, when I ...