| ||Variation in basal sucker production...|
| Material Information
||Variation in basal sucker production among Dieffenbachia seedlings
||ARC-A research report
||2 leaves : ; 28 cm.
||Henny, R. J
Rasmussen, Eleanor M
Agricultural Research Center (Apopka, Fla.)
||University of Florida, IFAS, Agricultural Research Center-Apopka
||Place of Publication:
||Dieffenbachia -- Florida ( lcsh )
Dieffenbachia -- Propagation -- Florida ( lcsh )
||government publication (state, provincial, terriorial, dependent) ( marcgt )
non-fiction ( marcgt )
||Statement of Responsibility:
||R.J. Henny and E.M. Rasmussen.
||Florida Historical Agriculture and Rural Life
|Table of Contents
Variation in basal sucker production among Dieffenbachia seedlings
The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
site maintained by the Florida
Cooperative Extension Service.
Copyright 2005, Board of Trustees, University
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