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Group Title: Agronomy research report - Everglades Research and Education Center ; 84-17
Title: Growth characteristics of twelve commercial and three experimental Canal Point sugarcane clones grown on organic soil
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Permanent Link: http://ufdc.ufl.edu/UF00056062/00001
 Material Information
Title: Growth characteristics of twelve commercial and three experimental Canal Point sugarcane clones grown on organic soil
Physical Description: 5 p. : ; 28 cm.
Language: English
Creator: Donovan, William Cullen, 1948-
University of Florida -- Agronomy Dept
Publisher: Department of Agronomy, IFAS, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 1984?]
 Subjects
Subject: Sugarcane -- Field experiments -- Florida   ( lcsh )
Histosols -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
General Note: Caption title.
General Note: "August, 1984."
General Note: Agronomy research report - Everglades Research and Education Center ; 84-17
Statement of Responsibility: by William C. Donovan.
 Record Information
Bibliographic ID: UF00056062
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62555527

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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








Agronomy Research Report 84-17 August, 1984

GROWTH CHARACTERISTICS OF TWELVE COMMERCIAL
AND THREE EXPERIMENTAL CANAL POINT SUGARCANE
CLONES GROWN ON ORGANIC SOIL

BY: William C. Donovan, Everglades Research and Education Center,
Belle Glade, F1
H JE LIBRARY
Fifteen sugarcane clones consisting f twelJy coqmercial an three
experimental Canal Point clones were plante in 9. 2"mi'0ir O8 m pl ts on a
Pahokee soil. The plots were planted on De eber 29, 1982. Growt measure-
ments were taken beginning in February 198 Sln nJnidfdo september,
1983. The plots were harvested on February 237 84-n, .d-e .l February
24, 1984.

The growth characteristics of sugarcane clones were measured by
determining the height in centimeters each month, monthly growth in centi-
meters, and number of tillers per clone per month. On the basis of the monthly
means of the individual clones, the fifteen clones were divided into different
groups according to their major periods of growth.

The growth cycle was divided into early (March, April, and May), middle
(June, July, August) and late (July, August, and September) and clones placed
into the divisions based upon their individual means. The means value of a
clone had to be at least 1 unit higher than the average mean of the fifteen
clones in two of the three months in order to be included in one of the above
three-month periods. Some clones grew consistently throughout the growing
season or grew irregularly and did not fall into any set standard. These
were labeled consistent and non-patterned. The data on monthly growth, total
height, and average monthly number of tillers of the fifteen sugarcane clones
were divided into the five groups based upon the five categories.
In Table 1 the sugarcane clones are grouped according to their patterns
of growth activity as early, middle, late, consistent, and non-patterned. The
monthly growth in centimeters for each clone is given as well as the mean of
all fifteen clones.

Table 2 compares the total height, rank, season of major growth activity,
brix, and pounds of sugarcane harvested for the fifteen clones.

Table 3 presents the average monthly number of tillers per meter for
the different clones grouped according to their patterns of growth activity.

Two of the clones which grew above the average of the fifteen clones
during the middle of the growth period (CP70-1133 and CP65-57) were first
and third in height. All three clones with major growth in the middle growth
period had the highest yields of sugarcane produced in the test plots for the
fifteen clones with 1800 pounds, 2120 pounds, and 2060 pounds of sugarcane










harvested for CP70-1133, CP65-357, and CP72-2086 respectively. Their peak
tillering period occurred early in May.

Two of the clones which grew very well early in the growth period,
CP75-1632 and CP74-2005, were in the upper third in height (fifth and sixth).
All three clones in this category (CP75-1632, CP74-2005, and CP77-1776) had
very good sucrose levels of 16.2%, 19%, and 17.4% respectively. CP77-1776
and CP75-1632 produced very low sugarcane yields with 1130 and 1480 pounds
harvested respectively. Their peak period of tillering was in June.

Of the three clones that grew late in the growth cycle, CP75-1553 and
CP72-1210 were in the middle third in terms of height (seventh and eighth,
respectively). These two clones also produced the highest percent sucrose
recorded, 19.6% and 19.8% respectively. CP56-59, the third member of this
group, and CP75-1553 produced low harvest yields of 1160 and 1200 pounds per
test plot respectively. CP72-1210 produced a respectable sugarcane yield of
2020 pounds of sugarcane harvested.

Two of the clones that had high growth activity consistently throughout
the growth period, CP70-1527 and CP69-1052, were second and fourth in terms of
total height. CP73-1547, another clone belonging to this group, had the lowest
percent sucrose recorded, 9.4%. CP73-1547 also had a low test plot yield of
1470 pounds of sugarcane. CP70-1527 and CP69-1052 had percent sucrose values
of 17.8 and 15.2 respectively with total test plot yields of 1540 and 1710
pounds respectively. Two of the clones that were inconsistent in terms of
their growth patterns, CP76-1519 and CP63-588, were fourteenth and fifteenth
in height of the fifteen clones. CP75-1082, another clone that was inconsistent
in terms of its growth pattern, had a low test plot yield of 1280 pounds
harvested. The sucrose levels of all three clones and the yield or pounds of
sugarcane harvested of CP75-1519 and CP63-588 compared favorably with the
sucrose levels and pounds of sugarcane harvested of the other fifteen clones.








Table 1


MONTHLY GROWTH (MEASURED IN CENTIMETERS/MONTH TO THE TOP VISIBLE DEWLAP)
OF FIFTEEN SUGARCANE CLONES AT BELLE GLADE, FLORIDA


Clone Season Feb. Mar. Apr. May June July Aug. Sept.

CP74-2005 E 7.2 3.8 13.7 30.3 66.7 76.6 23.1 43.4
CP75-1632 E 6.7 5.8 15.7 37.5 67.8 79.8 21.4 30.3
CP77-1776 E 6.0 4.1 14.5 23.5 67.9 66.4 36.0 24.0
CP65-357 M 4.9 2.6 11.2 25.1 78.8 90.4 32.0 33.3
CP70-1133 M 5.4 3.5 12.3 26.6 74.8 87.7 46.4 31.1
CP72-2086 M 5.9 3.2 6.7 12..4 69.3 86.6 44.9 31.4
CP73-1210 L 5.2 2.6 7.7 17.1 62.9 88.8 40.5 37.4
CP56-59 L 5.3 1.8 6.9 17.1 57.6 77.9 50.3 36.6
CP75-1553 L 4.8 3.2 13.0 21.0 56.6 86.2 25.3 52.7
CP69-1052 C 6.0 3.1 18.1 16.8 66.6 90.9 39.1 27.5
CP73-1547 C 5.6 1.9 11.5 25.4 69.3 77.8 16.1 47.6
CP70-1527 C 8.7 3.3 19.3 24.7 71.5 76.3 48.6 31.9
CP75-1082 NP 5.3 2.2 12.3 46.6 65.4 79.2 38.6 11.3
CP63-588 NP 3.6 3.5 9.7 17.8 53.0 74.4 35.8 28.7
CP76-1519 NP 5.1 2.3 13.7 25.7 59.3 77.5 40.4 9.9
Mean 5.7 3.1 11.5 24.5 65.8 81.1 35.9 31.8
*. -----*------ --------


E = early (March, April, Hay); M
C = consistent (continuous rapid


= middle
growth);


(Jun,. July, August); L = late (July, August, September);
and NP = non-patterned (inconsistent growth pattern).









Table 2
TOTAL HEIGHT (IN CENTIMETERS), RANK, SEASON OF MAJOR GROWTH, BRIX,
AND POUNDS OF CANE HARVESTED FOR FIFTEEN SUGARCANE CLONES
AT BELLE GLADE, FLORIDA


Pounds of
Clone Season Height Rank % Brix Cane Harvested

CP75-1632 E 265.0 5 16.2 1480
CP74-2005 E 264.8 6 19.0 1930
CP77-1776 E 242.4 13 17.4 1130
CP70-1133 M 287.8 1 12.0 1800
CP65-357 M 278.2 3 16.4 2120
CP72-2086 M 260.4 10 19.4 2060
CP75-1553 L 262.8 7 19.6 1200
CP72-1210 L 262.2 8 19.8 2020
CP56-59 L 251.6 11 14.8 1160
CP70-1527 C 282.7 2 17.8 1540
CP69-1052 C 268.1 4 15.2 1710
CP73-1547 C 251.1 12 9.4 1470
CP75-1082 NP 260.9 9 15.6 1280
CP76-1519 NP 233.9 14 14.0 1520
CP63-588 NP 226.5 15 13.4 1840


E = early (March, April, May); M = middle (June, July, August);
L = late (July, August, September); C = consistent (continuous rapid
growth); and NP = non-patterned (inconsistent growth pattern).







Table 3


AVERAGE MONTHLY NUMBER OF TILLERS PER METER
FOR FIFTEEN SUGARCANE CLONES AT BELLE GLADE, FLORIDA


Clone Season* Feb. Mar. Apr. May June July Aug. Sept.

CP74-2005 E 3.9 6.0 11.1 29.2 25.9 18.6 16.7 15.6
CP75-1632 E 6.6 7.1 15.0 22.8 23.9 13.3 12.4 12.1
CP77-1776 E 3.5 5.3 7.4 19.7 19.3 16.2 14.1 13.6
CP65-357 M 3.4 8.1 18.9 34.1 21.8 19.4 17.8 17.1
CP70-1133 M 4.9 7.3 14.6 24.1 22.3 18.5 15.9 12.8
CP72-2086 M 4.9 7.1 13.7 30.1 31.7 19.1 15.2 14.1
CP72-1210 L 1.8 4.5 6.8 21.0 24.6 18.5 15.0 15.4
CP56-59 L 2.9 7.0 11.3 20.8 19.0 16.2 15.0 14.3
CP75-1553 L 2.9 6.5 9.0 29.0 24.9 19.5 17.1 15.9
CP69-1052 C 8.5 10.2 19.3 27.5 18.9 15.2 13.6 14.6
CP73-1547 C 5.0 6.1 9.8 19.1 19.0 18.3 13.6 14.1
CP70-1527 C 5.7 7.3 12.5 25.2 25.4 17.7 14.4 12.3
CP75-1082 NP 6.3 6.9 13.6 22.1 18.0 15.3 13.2 13.8
CP63-588 NP 6.4 8.6 15.8 24.7 17.6 13.7 12.6 13.1
CP76-1519 NP 6.1 7.8 20.1 34.0 24.8 17.5 16.2 15.7
Mean 4.9 7.1 13.3 25.6 22.5 17.1 14.9 14.3
___ 17.


August, September);
growth pattern).


E = early (March, April, May) M = middle (June, July, August); L = late (July,
C = consistent (continuous rapid growth); and NP = non-patterned (inconsistent




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