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Group Title: Soybean variety trials.
Title: Soybean variety trials, 1974
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Permanent Link: http://ufdc.ufl.edu/UF00075816/00001
 Material Information
Title: Soybean variety trials, 1974
Series Title: Soybean variety trials.
Alternate Title: Research report - UF Agricultural Research and Education Center ; CF-75-3
Physical Description: Serial
Language: English
Creator: Scudder, W. T.
Publisher: Agricultural Research and Education Center, University of Florida
Publication Date: 1975
 Record Information
Bibliographic ID: UF00075816
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 144607737

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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








F AGRICULTURAL RESEARCH AND EDUCATION CENTER
S... Sanford, Florida

Research Report CF 75-3 L Ui.i: iiBR Y 9, 1975

Soybean Variety Tr %:sr- 1974
1976
W. T. Scudder
Professor (Horticult;Pist.)
.r .o. ,nni. or oi-d
Replicated soybean variety trials were conducted at the Refsarch Center
farms on sand soil at Sanford and on peat soil at Zellwood. Sixteen of the
varieties were the same at both locations, including 12 which were part of the
cooperative Florida State Uniform Variety Testing Program with plantings at
eight different locations throughout the State. In addition, Essex was included
at Zellwood and five short-day group 8 or 9 varieties were added at Sanford.
Three of these, Mineira, Santa Rosa, and Vicoja were selected and released in
Brazil for use in sub-tropical or tropical areas.
Experimental data and procedural details for each of the trials are listed
on page 2. Although four replications were planted at each location, one was
eliminated from the results at Sanford due to a wet area long the south edge
of the field. Two factors prejudiced all of the data at both locations in favor
of the late maturing varieties. First, both plantings were made late, near the
middle of July. In spite of this late planting, the earliest variety at each
location, Dare at Sanford and Essex at Zellwood, attained a plant height of
approximately 24 inches. Also, green stink bugs were not controlled during
the last half of the growing season. Only ground sprayer equipment was
available. This caused serious plant damage when used only once for the first
scheduled methyl parathion application. Considerable loss caused by stink
bugs was evident at both Sanford and Zellwood.



J,
Cooperative project leaders: Drs. Kuell Hinson and E. Ben Whitty, Agronomy
Department, University of Florida, Gainesville.




J ,


-2-


Soybean Variety Trial Experimental Data 1974


Item

Location

Soil type
No. of varieties
No. of replications
Plot size
Rhizobium inoculation
Planting date
Seed fungicide treatment
Weed control:
Pre-emergence


Post- emergence


Insect control:
Worms


Stink bugs



Observational data:
Plant height
Maturity

Harvest data:
Early varieties
Mid- season varieties
Late varieties


Sanford

AREC- Sanford Farm

Leon fine sand
21
4
4 rows x 19 feet
liquid soil injection
July 12
thiram (Arasan)


3 lb. CDAA (Randox) +
3 lb. CDEC (Vegade-:)
cultivation + 3/4 lb. pa:.'aquat
directed with shields at
layby


1 application using 0. 5 lb.
methomyl (Lannate)
1 early application: 0.5 lb.
methyl parathion; no
later treatments


November 4
November 4


November 4
November 18
December 3


Zellwood

AREC- Zellwood Farm

Everglades mucky peat
17
4
4 rows x 19 feet
liquid soil injection
July 18
thiram (Arasan)


2 lb. alachlor (Lasso)
2 lb. CDEC (Vegade
cultivation + 3 lb. dino
(Premerge) directed
with shields at lay


1 application using 0.5
methomyl (Lannate)
1 early application: .0.
methyl parathion; n
later treatments


November 5
October 10


October 30
November 5
November 27






-3-


Table 1.- Response of 21 Soybean
Sand Soil at Sanford, Florida,


Varieties Grown on
Summer 1974a


Plant height Maturity Yield
No. Variety (inches) b (rating)c (bu/a) Significance d

1 Hampton 266 A 26.7 8.0 53.3
2 Jupiter 39.3 1.0 50.0
3 Bragg 27.0 8.5 48.0

4 Davis 30.3 8.5 47.2
5 Cobb 31.3 4.5 46.7
6 Santa Rosa 33.7 2.3 46.6

7 McNair 600 26.3 9.0 45.8
8 Ransom 24.7 6.8 45.3
9 Hutton 24.3 7.8 45.2

10 Vicoja 33.0 4.0 44.4
11 Blend- 2 (Hutton+ Hampton) 25.0 7.3 43.8
12 Seminole 25.3 8.8 41.1

13 Hardee 32.0 7.3 40.3
14 Forrest 26.0 8.8 40.3
15 F67-3673 27.0 6.3 40.2

16 Blend-1 (Bragg + Hutton) 26.0 6.8 40.1
17 W 46 29.7 9.3 39.1
18 Tracy 26.7 10.0 35.9

19 Mineira 32.7 8.3 35.6
20 Improved Pelican 46.7 3.5 34.9
21 Dare 24.0 10.0 29.8


aData are averages of 3 replications.


plant height: Height of main stem measured at maturity,


November 4, 1974.


Maturity rating: Based on 0-10 scale, November 4, 1974: 1=dark green;
10=mature and dry.

yield significance: Data connected by any one line are not significantly different
from each other at odd of 99 to 1.






-4-


Table 2.- Response of 17 Soybean Varieties Grown on
at Zellwood, Florida, Summer 1974a,


Peat Soil I


Plant height Maturity Yield
No. Variety (inches) (rating)c (bu/a) Significanced

1 Jupiter 45.5 1.0 35.8
2 Cobb 35.8 2.3 34.9
3 F67-3673 32.0 3.5 34.1

4 Hardee 30.8 2.0 33.3
5 Blend-2 (Hutton+ Hampton) 28.8 2.8 33.1
6 W 46 36.3 3.0 31.5

7 Hutton 28.3 3.3 31.4
8 Bragg 30.0 3.3 30.0
9 Blend-1 (Bragg + Hutton) 31.3 3.5 29.8

10 Hampton 266 A 30.5 4.5 27.5
11 McNair 600 28.5 6.3 27.5
12 Davis 33.0 5.5 27.2

13 Essex 23.8 10.0 26.5
14 Forrest 30.0 7.0 25.1
15 Tracy 30.0 8.3 25.0

16 Ransom 29.5 5.8 23.7
17 Dare 31.0 9.0 23.0


aData are averages of 4 replications.

Plant height: Height of main stem measured at maturity, November 5,


1974.


CMaturity rating: Based on 0-10 scale, October 10, 1974:
10=mature and dry.


l=dark green;


yield significance: Data connected by any one line are not significantly different
from each other at odd of 99 to 1.




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