Abstract
Semi-hardwood or hardwood stem cuttings of Ilex vomitoria Sol. ex Ait. ‘Dare County’ [‘Dare County’ yaupon holly (syn. ‘Virginia Dare’ yaupon holly)] were treated with solutions of the potassium (K) salt (K-salt) of indolebutyric acid (K-IBA) at 0 to 8000 mg liter−1 (ppm). Nontreated semi-hardwood cuttings rooted at 78% whereas, regardless of auxin treatment, hardwood cuttings taken on two dates rooted at 15%. Treatment of cuttings with K-IBA was generally ineffective and resulted in a linear decrease (P ≤ 0.05) in percent rooting of semi-hardwood cuttings.
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