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 Results and discussion






Group Title: ARC-A research report - Agricultural Research and Education Center - RH-84-6
Title: Increasing rooting of Aglaonema 'Fransher' cuttings with hormones and bottom heat
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Permanent Link: http://ufdc.ufl.edu/UF00066525/00001
 Material Information
Title: Increasing rooting of Aglaonema 'Fransher' cuttings with hormones and bottom heat
Series Title: ARC-A research report
Physical Description: 3 p. : ; 28 cm.
Language: English
Creator: Henny, R. J
Agricultural Research Center (Apopka, Fla.)
Publisher: University of Florida, IFAS, Agricultural Research Center-Apopka
Place of Publication: Apopka FL
Publication Date: 1984
 Subjects
Subject: Plant cuttings -- Rooting -- Florida   ( lcsh )
Aglaonema -- Propagation -- Florida   ( lcsh )
Plant hormones -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R.J. Henny.
General Note: Caption title.
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Bibliographic ID: UF00066525
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 - 71303265

Table of Contents
    Copyright
        Copyright
    Materials and methods
        Page 1
    Results and discussion
        Page 2
        Page 3
Full Text





HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
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record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
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Copyright 2005, Board of Trustees, University
of Florida






( INCREASING ROOTING OF AGLAONEMA 'FRANSHER' CUTTINGS
WITH HORMONES AND BOTTOM HEAT

1
---R. J. Henny
Sp l' University of Florida, IFAS
SAgricultural Research Center Apopka
ARC-A Research Report RH-84-6

.Alt oVgbr sTer growing than most other aroids, Aglaonema are important
pStolIgib ants-because of their excellent adaptability to interior growing
endftions. Aglaonema are almost exclusively propagated using leafy stem
cuttings; attempts at tissue culture propagation have generally proven
uneconomical. Any method which might hasten production of Aglaonema would
be of benefit to growers. This report presents information from three
separate experiments concerning rooting of Aglaonema 'Fransher' as affected
by hormones and application of bottom heat to the rooting medium.

Materials and Methods
In each of the 3 experiments the following factors remained constant.
Uniform 6-7 leaf terminal tip cuttings were placed in a 1:1 peat/perlite
rooting medium with mist set on 15 seconds every 30 minutes from midmorning
to late afternoon (hours varied with the time of year, but averaged from about
0900 to 1700 hours). Upon termination of each experiment, the number of roots
longer than 1-cm on each cutting was counted and the length of the longest
root was determined in centimeters (cm). Hormone treatments consisted of
A) control no hormone; B) Hormodin #1 (0.1% IBA talc); C) Hormodin #2
(0.3% IBA talc); and D) Hormodin #3 (0.8% IBA talc). Hormones were applied
to the moistened basal 1-cm of each cutting and any excess removed by a gentle
tapping. Cuttings were stuck in preformed holes in the rooting medium to
avoid removal of the hormones. The propagation medium was heated with an
electric heating cable placed on 5-cm (2-inch) centers. Soil temperature was
monitored regularly and the temperature range at the base of the cuttings is
presented for each experiment. All tests were performed using a randomized
block experimental design and data from each experiment were individually
summarized and statistically analyzed (Tables 1-3).
Experiment 1. Sixty cuttings (15 replications per treatment) were placed
in the rooting medium, heated to 27-290C (79-820F), on April 16, 1982. Cut-
tings were removed and evaluated after 4 weeks.

Experiment 2. On November 12, 1982, 56 cuttings (14 replications per
treatment) were placed under mist with a rooting temperature of 27-290C and
left for 5 weeks.


1Associate Professor, Plant Genetics, Agricultural Research Center, 2807
Binion Road, Apopka, FL 32703.







Experiment 3. On January 14, 1983, 48 cuttings (12 replications per
hormone treatment) were placed in heated medium at 26-300C (79-860F) and 48
were set in unheated rooting medium which ranged from 16-19C (61-670F).
Cuttings from the heated medium were evaluated after 5 weeks while unheated
cuttings were removed after 10 weeks.
Results

In experiment 1, cuttings treated with the highest hormone level (Hormodin
#3) had significantly more roots than the other 3 treatments, while there were
no differences in root length among .any treatments (Table 1).

All treated cuttings in experiment 2 produced significantly more and
longer roots than the controls (Table 2). In addition, Hormodin #2 and #3
treatments resulted in significantly more roots than Hormodin #1.

In experiment 3, cuttings rooted with bottom heat produced more roots
after 5 weeks than unheated cuttings did after 10 weeks at all treatment levels
(Table 3). Among heated cuttings, Hormodin #2 and #3 induced a significantly
larger mean number of roots than Hormodin #1 or the controls, while there was
no significant difference in mean root length. There were no significant
differences in mean number of roots or root length in the unheated cuttings
after 10 weeks.
Discussion

Aglaonema 'Fransher' cuttings can be well-rooted within 5 weeks if the
temperature of the rooting medium is kept at a minimum of 80F (27C), com-
bined with the use of a rooting hormone. In these experiments, Hormodin #3
always increased rooting above controls. In experiments 2 and 3, Hormodin #2
also increased rooting over controls. Hormodin #1 stimulated rooting in
experiment 2. Hormone effects on root length were less apparent with a sig-
nificant increase in length occurring only in experiment 1.

A large increase in rooting also occurred using bottom heat vs. no heat.
Cuttings with heat produced more roots in all treatments in 5 weeks than un-
treated cuttings did in 10 weeks. Also, there was no increase in rooting by
addition of hormones to unheated cuttings in that test.

These results indicate that a warm rooting medium is essential for optimum
effects of rooting hormones to be expressed when propagating Aglaonema 'Fransher'
cuttings.








Table 1. Effect of 4 hormone levels on rooting of Aglaonema 'Fransher'
cuttings. Cuttings stuck April 16, 1982 and remained 4 weeks in
rooting medium held at 27-290C.

Mean number Mean root
Treatment roots length (cm)

Control 7.8 ay 5.9 a
Hormodin #1 8.9 a 6-.0 a
Hormodin #2 9.1 a 6.2 a
Hormodin #3 13.2 b 7.0 a
zl5 replications per treatment.
YMean separation within columns by Duncan's Multiple Range Test, 1% level.


Table 2. Effect of 4 hormone levels on rooting of Aglaonema 'Fransher'
cuttings. Cuttings stuck November 12, 1982 and held 5 weeks at 27-290C.

Mean number Mean root
Treatments roots-. length (cm)

Control 7.2 ay 4.3 a
Hormodin #1 11.9 b 5.9 b
Hormodin #2 18.3 c 5.9 b
Hormodin #3 20.6 c 5.7 b
Z14 replications per treatment
YMean separation within columns by Duncan's Multiple Range Test, 1% level.


Table 3. Effect of 4 hormone levels and 2 soil temperatures on rooting of
Aglaonema 'Fransher' cuttings. Cuttings stuck January 14, 1983, either
at a rooting temperature of 16-190C or 26-300C.

26-300C/5 weeks 16-190C/10 weeks
Mean no. Mean root Mean no. Mean root
Treatmentz roots length (cm) roots length (cm)

Control 7.7 ay 5.8 a 5.5 a 2.2 a
Hormodin #1 9.3 a 6.1 a 5.6 a 2.7 a
Hormodin #2 17.2 b 5.9 a. 7.2 a 2.6 a
Hormodin #3 18.8 b 6.0 a 7.4 a 2.8 a
Zl2 replications per treatment.
YMean separation within columns by Duncan's Multiple Range Test, 1% level.




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