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  • Author or Editor: P. Fedec x
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Sunflower hull material from Sunflower (Helianthus annuus L.) was unsuccessful as an amendment in potting mixtures because of inhibition to top and root growth. Aqueous and methanol extracts from sunflower hulls reduced the rate of germination with lettuce and radish seeds and reduced primary root elongation with lettuce in bioassay tests.

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