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  • Author or Editor: E.G. Denny x
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Abstract

Various techniques have been used for emasculation of rosaceous fruits; fingernails, scalpels, and tweezers are typical tools (1, 3, 5, 7). Emasculation tools for stone fruits have been made from a hacksaw and from square-jawed forceps with cut out corners (6). Barrett and Arisumi (2) devised an instrument that consisted of a pair of scissors with a triangular notch in the blade whose width could be adjusted by an adjustable arm or set screw.

Open Access

Abstract

In vitro propagation of ‘Nemaguard’ peach rootstock [Prunus persica (L.) Batsch] was obtained on a modified Murashige and Skoog (MS) medium using shoot tips as primary explants. Shoot proliferation was induced on MS medium supplemented with 50 mg/liter L-ascorbic acid, 20 ml/liter Staba vitamin mixture, 2.0 mg/liter 6-benzylamino purine (BA), and 0.1 mg/liter naphthaleneacetic acid (NAA). Rooting was induced by subculturing plantlets on a similar medium without the Staba vitamins and without BA. When the Staba vitamin mixture was present, rooting was reduced; the inhibition resulted from the presence of riboflavin.

Open Access

Abstract

Semihardwood peach [Prunus persica (L.) Batsch] cuttings were successfully rooted when the bases and tops were misted intermittently with water. Rooting was not affected by cultivar or type of cutting (basal vs. terminal). Closer proximity of the bases of the cuttings to the mist line and overhead misting improved rooting percentage.

Open Access