PT  - JOURNAL ARTICLE
AU  - Knight, Patricia R
AU  - Coker, Christine H
AU  - Anderson, John M
AU  - Murchison, Deborah S
AU  - Watson, Clarence E
TI  - Mist Interval And K - IBA Concentration Influence Rooting Of Orange And Mountain Azalea
AID  - 10.2979/NPJ.2005.6.2.111
DP  - 2005 Jun 20
TA  - Native Plants Journal
PG  - 111--117
VI  - 6
IP  - 2
4099  - http://npj.uwpress.org/content/6/2/111.short
4100  - http://npj.uwpress.org/content/6/2/111.full
SO  - NATIVE PLANTS JOURNAL2005 Jun 20; 6
AB  - Using a Mississippi source of orange (Rhododendron austrinum (Small) Rehd. [Ericaceae]) and mountain (Rhododendron canescens (Michx.) Sweet) azalea, we found that treating terminal softwood cuttings with 10 000 ppm K-IBA yielded the best rooting performance in terms of root number, length, and quality when misted 4 s every 6 min (4 s:6 min). Rooting percentage of orange and mountain azalea was similar from 0 to 10 000 ppm K-IBA. For orange azalea, cuttings treated with 7500 ppm K-IBA had more roots compared with plants treated with 0 ppm K-IBA. Cuttings treated with 7500 or 10 000 ppm K-IBA had greater average root length and higher root quality compared with the control. Cuttings placed under mist for 4 s:6 min had more roots compared with cuttings placed under mist for 4 s:12 min. For mountain azalea, cuttings treated with 10 000 K-IBA had more roots, greater average root length, and higher root quality compared with cuttings treated with 0 ppm K-IBA. Cutting growth was greater under 4 s:6 min than 4 s:12 min. Although information on vegetative propagation of native azaleas is limited, and other cultural practices may affect misting interval and K-IBA concentrations, these results should help growers produce more plants for market until additional discoveries are made.