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Seasonal Changes in the Rooting of Juvenile and Adult Pecan Cuttings1

Michael W. Smith, H. T. Chiu

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Abstract

Abstract Juvenile cuttings of pecan ( Carya illinoensis (Wang) K. Koch) produced more roots and a larger percentage of rooted cuttings than adult cuttings when treated with a 0.5, 1, or 2% solution of indolebutyгic acid (IBA) in February, 1 or 2% IBA in June, and 0.5 or 1% IBA in August. Juvenile cuttings treated with a 1% IBA solution produced significantly more roots than treatment with 0, 0.5%, or 2% IBA when cuttings were taken during February, June, or August. The percentage of juvenile cuttings rooting was greater with February, June, and August than April, October, and December collections.

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Abstract Juvenile cuttings of pecan ( Carya illinoensis (Wang) K. Koch) produced more roots and a larger percentage of rooted cuttings than adult cuttings when treated with a 0.5, 1, or 2% solution of indolebutyгic acid (IBA) in February, 1 or 2% IBA in June, and 0.5 or 1% IBA in August. Juvenile cuttings treated with a 1% IBA solution produced significantly more roots than treatment with 0, 0.5%, or 2% IBA when cuttings were taken during February, June, or August. The percentage of juvenile cuttings rooting was greater with February, June, and August than April, October, and December collections.

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Available abstract

Abstract Juvenile cuttings of pecan ( Carya illinoensis (Wang) K. Koch) produced more roots and a larger percentage of rooted cuttings than adult cuttings when treated with a 0.5, 1, or 2% solution of indolebutyгic acid (IBA) in February, 1 or 2% IBA in June, and 0.5 or 1% IBA in August. Juvenile cuttings treated with a 1% IBA solution produced significantly more roots than treatment with 0, 0.5%, or 2% IBA when cuttings were taken during February, June, or August. The percentage of juvenile cuttings rooting was greater with February, June, and August than April, October, and December collections.

Key concepts: Cutting, Juvenile, Biology, Horticulture, Botany, Ecology

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