Citation
Fluoride and foliage

Material Information

Title:
Fluoride and foliage
Series Title:
ARC-A research report
Creator:
Poole, R. T ( Richard Turk )
Conover, Charles Albert, 1934-
Agricultural Research Center (Apopka, Fla.)
Place of Publication:
Apopka Fla
Publisher:
Agricultural Research Center-Apopka
Publication Date:
Language:
English
Physical Description:
2, 2 leaves : ; 28 cm.

Subjects

Subjects / Keywords:
Plants -- Effect of fluorides on -- Florida ( lcsh )
Foliage plants -- Florida ( lcsh )
Fluorides ( jstor )
Dolomite ( jstor )
Leaves ( jstor )
Genre:
government publication (state, provincial, terriorial, dependent) ( marcgt )
non-fiction ( marcgt )

Notes

General Note:
Caption title.
Statement of Responsibility:
R.T. Poole and C.A. Conover.

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
70912628 ( OCLC )

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HISTORIC NOTE


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
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida




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FLUORIDE AND FOLIAGE


POOLE AND C. A. CONOVER
al Research Center Apopka
SResearch Report RH-76-2


SFoliage
Chlorophytum comosum
Cordyline terminalis
Cordyline terminalis
Dracaena deremensis
Dracaena deremensis


Sensitive to Fluoride
Spider Plant
Baby Doll
Sport
Janet Craig
Warneckii


Foliage Slightly Sensitive to Fluoride

Dracaena fragrans Massangeana Liliaceae
Maranta erythroneura Red Nerve Marantaceae
Maranta kerchoveana Prayer Plant Marantaceae
Spathiphyllum cannaefolium Araceae
Stromanthe amabilis Marantaceae
Yucca elephantipes Spineless Yucca Liliaceae



Foliage Probably Sensitive to Fluoride

Aspidistra elatior Cast Iron Liliaceae
Calathea insignis Rattlesnake Marantaceae
Calathea makoyana- Peacock Marantaceae
Dracaena marginata Dragon tree Liliaceae
Dracaena sanderiana Ribbon Liliaceae
Pleomele thalioides Lance Liliaceae


Liliaceae
Liliaceae
Liliaceae
Liliaceae
Liliaceae











Reduction of Fluoride Toxicity

Elevate pH, 6.0-6.5
Eliminate F in water
Avoid media containing F
Avoid use of superphosphate
Reduce transpiration




PUBLICATIONS RELATING TO FLUORIDE AND FOLIAGE

1. Conover, C. A. and R. T. Poole. 1971. Influence of fluoride on foliar
necrosis of Cordyline terminalis 'Baby Doll' during propagation. Proc.
Fla. State Hort. Soc. 84:380-383.

2. Conover, C. A. and R. T. Poole. 1973. Factors influencing notching and
necrosis of Dracaena deremensis 'Warneckii' foliage. Proc. Trop. Reg.,
Am. Soc. Hort. Sci. 17:378-384.

3. Poole, R. T. and C. A. Conover. 1973. Fluoride induced necrosis of
Cordyline terminalis Kunth 'Baby Doll' as influenced by medium and pH.
J. Am. Soc. Hort. Sci. 98(5):447-448.

4. Poole, R. T. and C. A. Conover. 1974. Foliar chlorosis of Dracaena
deremensis Engler cv. Warneckii cuttings induced by fluoride. HortScience
9(4):378-379.

5. Conover, C. A. and R. T. Poole. 1974. Fluoride toxicity of tropical
foliage plants. Florists' Review 157(3993):23,59.

6. Henley, R. W. 1974. A review of fluoride research on tropical foliage
plants. Florida Foliage Grower 11(7):1-4.

7. Poole, R. T. and C. A. Conover. 1975. Fluoride-induced necrosis of
Dracaena deremensis Engler cv. Janet Craig. HortScience 10(4):376-377.







ELEVATION OF pH
- -- -_---I -


EXPERIMENTAL RESULTS


PEAT/BARK/SHAVINGS(2/1/1) pH 4.4
Source lb/yd PH
Dolomite 10.0 5.i


FLORIDA PEAT/SAND (4/1) pH 3.6
Dolomite 7
Cal. Carb. 3 5.5


GERMAN PEAT pH 3.9
Dolomite 5.' 5.0
Dolomite 10.0 5.4
Cal. Carb. 5.') 5.3
Cal. Carb. 10.0 5.8


GERMAN PEAT pH 4.1
Dolomite 5.0 5.2
Dolomite 10.0 5.6
Hy. Lime 5.0 5.bL
Hy. Lime 10.0 5.fl


PEAT (Initial pH) pH after 10 lbs/yd Dolo.
Peace River (3.3) 5.)
German (3.9) 5.9
Canadian (4.2) 5.,


PEAT (Initial pH) pH after
Peace River (3.6)
German (4.3)


gm/l Hy. Lime (teas/gal)
4.1
4.7


Ca(OH)2 pH
gm/l* PEAT/SAND (4/1) PEAT/BARK/SHAV (2/1/1)
0 3.3 3.r
1 4.1 4.2
2 4.4 4.4
3 4.7 4.8
': 1 gm/1 = approximately teas/gal or lb/100 gal





















GU I D E L INES


SO L


.I N C R P 0 R A T I N


lbs/yd
Hydrated Lime 4 5
Calcium Carbonate 5 7
Dolomite 5 10
Dolo + Cal. Carb. 7 + 3


S O IL DRENCH


Hydrated Lime 1-2 lb/100 gal or 1-2 teas/gal


pH AND HYDROGEN CONCENTRATION



PH 4 CH+]= 10-4 = 0.nooloo ~I"/i{(Fcrt4
pH 5 [H+]= 10-5 = 0.00010 --/ t
pH 6 [H+]= 10-6 = 0.000001