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Group Title: ARC-A research report - Agricultural Research and Education Center - RH-82-14
Title: Variation in basal sucker production among Dieffenbachia seedlings
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Permanent Link: http://ufdc.ufl.edu/UF00066474/00001
 Material Information
Title: Variation in basal sucker production among Dieffenbachia seedlings
Series Title: ARC-A research report
Physical Description: 2 leaves : ; 28 cm.
Language: English
Creator: Henny, R. J
Rasmussen, Eleanor M
Agricultural Research Center (Apopka, Fla.)
Publisher: University of Florida, IFAS, Agricultural Research Center-Apopka
Place of Publication: Apopka FL
Publication Date: 1982
 Subjects
Subject: Dieffenbachia -- Florida   ( lcsh )
Dieffenbachia -- Propagation -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R.J. Henny and E.M. Rasmussen.
General Note: Caption title.
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Bibliographic ID: UF00066474
Volume ID: VID00001
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved, Board of Trustees of the University of Florida
Resource Identifier: oclc - 71211514

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not reflect current scientific knowledge
or recommendations. These texts
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Copyright 2005, Board of Trustees, University
of Florida









VARIATION IN BASAL SUCKER PRODUCTION HUIE LIRA
AMONG DIEFFENBACHIA SEEDLINGS

R. J. Henny and E. M. Rasmussen '
University of Florida, IFAS
Agricultural Research Center-Apopka I.F.A.S. Univ. of Florida
ARC-A Research Report RH-82-14

One of the most important characteristics of Dieffenbachia cultivars is

the number of basal shoots or suckers produced. Plants which produce several

suckers are desired by most nurserymen as they yield fuller plants which are

less likely to become "leggy". Therefore, any Dieffenbachia breeding program

needs to consider a seedling's suckering tendency as part of its overall

evaluation. This study was conducted to determine if Dieffenbachia seedlings

could be selected for differences in the number of basal suckers they produced.

Dieffenbachia maculata 'Hoffmannii' and 19 of its inbred (II) seedlings,

obtained from self pollination, were chosen for the test plants in this study.

Selected plants had been propagated at this research center so that 5 uniform

cuttings could be obtained from each. Cuttings with 3 mature leaves were

harvested November 11, 1977 and stuck one per 6-inch (15 cm) pot containing

a medium of 2 parts peat, 1 part cypress shavings, and 1 part pine bark. The

medium was amended with 7 Ibs/yd Dolomite, 3 Ibs/yd Perk -(a micronutrient

source), and 10 Ibs/yd Osmocote (19-6-12). The pots were placed under mist

with the mist on 15 seconds every 15 minutes from 8:00 a.m. to 5:00 p.m.

After 6 weeks the cuttings were removed from mist and placed in a slatshed

under 80% shade and natural photoperiod with a minimum temperature of 450F.

The 100 plants were arranged in a randomized block experimental design. Data

involving the number of basal breaks appearing on each plant was recorded May

5, 1978 (6 months after the cuttings were harvested).









Dieffenbachia maculata 'Hoffmannii' and 6 of its seedlings produced

no suckers after 6 months (Table 1). The other seedlings averaged from

0.2 to 4.6 suckers per plant. Seedlings number 25 and 31 produced signif-

icantly more suckers than any other plants (3.8 and 4.6 suckers, respectively).

Table 1. Average number of basal suckers produced by Dieffenbachia maculata
'Hoffmannii' and 19 of its Ii seedlings.z

Avg no. Avg no.
Plant suckersY Plant suckers

D. m. 'Hoffmannii' 0.0 a Seedling No. 12 0.4 ab
Seedling No. 3 0.0 a 13 0.6 abc
4 0.0 a 1 0.8 abc
7 0.0 a 14 1.2 bc
8 0.0 a 20 1.2 bc
11 0.0 a 18 1.6 cd
"15 0.0 a 29 2.4 d
2 0.2 ab 30 2.4 d
17 0.2 ab 25 3.8 e
27 0.2 ab 31 4.6 e

z5 reps per plant. Plants grown 6 months from date cuttings taken.

lo'eans followed by different letters are significantly different at the 5%
'level (Duncan's New Multiple Range Test).

Results from this study indicate that Dieffenbachia seedlings differ in

their tendency to produce basal breaks. It is also important to note that

seedlings with high sucker production may be obtained from parental plants

which are poor sucker producers. Hopefully, it may be possible to develop

Dieffenbachia hybrids which combine good suckering ability plus desirable

foliar characteristics.




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