Two sesquiterpene lactones belonging to the germacranolides were isolated from the leaves and stems of Helianthus annuus L. Their formation in the plant is light-dependent. Both sesquiterpene lactones ...

'Cavitation fatigue' is the increased susceptibility of a xylem conduit to cavitation as a result of its prior cavitation. It was investigated whether cavitation fatigue induced in vivo could be ...

Cultivated plants have been molded by human-induced selection, including manipulations of the mating system in the twentieth century. How these manipulations have affected realized parameters of the ...

RUST (Puccinia helianthi Schw.) is a major hazard to sunflower production in a number of countries. The area devoted to sunflowers for edible oil in Canada, all in southern Manitoba, was reduced from ...

Growing giant sunflowers isn't just about picking a big variety, you also need to think carefully about placement, irrigation ...

Sunflower seeds, which come from the dried center of the sunflower plant (Helianthus annuus L.), are packed with healthy fats, protein, vitamins, and minerals (1). They’re delicious as a snack, in ...

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