Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Blythe, Eugene K.

Committee Member

Bi, Guihong

Committee Member

Knight, Patricia R.

Committee Member

Bachman, Gary R.

Committee Member

Reynolds, Daniel B.

Date of Degree

1-1-2017

Document Type

Graduate Thesis - Open Access

Major

Horticulture

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Plant and Soil Sciences

Abstract

In response to commercial propagators’ inquiries regarding potential phytotoxicity of alcohol used in root-promoting solutions for cutting propagation, three experiments were conducted using stem cuttings of seven herbaceous and woody plant taxa. Solutions were prepared with three rates of isopropyl alcohol (0%, 25%, or 50%) in combination with three rates of indole-3-butyric acid (IBA): 0, 1000, or 2000 ppm (Expt. 1); 0, 100, and 200 ppm (Expt. 2); or a mixture of IBA and 1-naphthalene acetic acid (NAA): 0+0, 500+250, or 1000+500 ppm IBA+NAA, respectively (Expt. 3) and applied to cuttings using the basal quick-dip method (Expts. 1 and 3) or total immersion method (Expt. 2). No stem or leaf burn occurred using the basal quick-dip method (except for lantana), whereas foliar and stem burn occurred on cuttings of African wormwood, lantana, and garden geranium using the total immersion method with solutions containing alcohol (regardless of IBA rate).

URI

https://hdl.handle.net/11668/16880

Comments

stem cuttings||propagation||auxins

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