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Group Title: Soybean variety trials.
Title: Soybean variety trials, 1976
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Permanent Link: http://ufdc.ufl.edu/UF00075816/00003
 Material Information
Title: Soybean variety trials, 1976
Series Title: Soybean variety trials.
Translated Title: Research report - UF Agricultural Research and Education Center ; CF-77-7 ( English )
Physical Description: Serial
Language: English
Creator: Scudder, W. T.
Publisher: Agricultural Research and Education Center, University of Florida
Publication Date: 1977
 Record Information
Bibliographic ID: UF00075816
Volume ID: VID00003
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







HUME LIBRARY

SEP 2 7 1977


AGRICULTURAL RESEARCH A6.UdAt'iCI O FtO i R
Sanford, Florida -- --

Research Report CF 77-7 April 25, 1977


Soybean Variety Trials 1976

W. T. Scudder

In 1976, 16 different varieties were tested on Leon fine sand soil at the
Sanford Agricultural Research and Education Center. Yields were not as high
as recorded in 1975, but were good, ranging from 38. 4 to 53.7 bushels per acre.
The main test contained 12 varieties, listed in Table 1 in order of decreasing
yields. Four other varieties grown under similar conditions are given at the
bottom of the table. These were planted on the same date in the same field, but
Were not included in the replicated trial.
At Zellwood, on Everglades mucky peat soil, 23 soybean varieties were
planted and evaluated on the Potter Farm. These included all 16 of those grown
at Sanford, plus 7 early varieties in maturity groups V and VI. The top yield
of 60. 8 buchels per acre was produced by Cobb. This variety has been a high
yielder consistently at both locations during the past three years. Data from
the Zellwood trial are given in Table 2.
These tests were conducted with the cooperation of Dr. Kuell Hinson, and
Dr. E. B. Whitty of the Agronomy Department at the University of Florida,
Gainesville. They included 8 varieties planted at several locations throughout
Florida as part of the uniform State Variety Trials. The Zellwood test was
grown with the cooperation of Mr. R. Carroll Potter, who supplied the land
and cared for the crop.












Soybean Variety Trial Experimental Data 1976


Item
Location
Soil type


Sanford
AREC-Sanford Farm
Leon fine sand


No. of varieties
No. of replications
Plot size
Row spacing
Rhizobium inoculation
Planting date
Nematode control

eed control
Pre-emergence



Post- emergence
Insect control
Worms

Stinkbugs
Harvest dates:
Early and midseason
varieties
Late varieties


4 rows X 19 feet
30 inches
Liquid soil injection
June 29
13 1/3 lb. Nemacure 15 G in
10 in. band (2 lb. ai/a)


2 lb. alachlor (Lasso 4 EC) +
1/4 lb. metribuzin
(Sencor 50 W)
2 cultivations


methomyl (Lannate) +
toxaphene
parathion (Niran)



Nov. 8
Nov. 20


Zellwood
Potter Farm
Everglades mucky
peat
23
3
4 rows X 19 feet
36 inches
liquid in seed furrow
July 9
None


2 lb. alachlor
(Lasso 4 EC)

1 cultivation


methomyl (Lannate)+
toxaphene
parathion (Niran)



Nov. 10
Nov. 18












Table 1-Response of soybean varieties grown on Leon fine sand
at Sanford in 1975 .


b Lodgingc Height Maturitye Yield
Variety rating (inches) Pods Stems bu/acre
---date-
NAPB-805 2.4 36.8 Oct. 25 Nov. 1 53.7
Santa Rosa 4.9 43.8 30 9 51.6
Cobb 2.8 38.8 30 9 50.7
F71-1138 1.8 32.8 21 Oct. 31 50.7
Mineira 3.8 40.0 29 Nov. 5 50.4
Ransom 1.6 34.8 23 4 50.3
Hardee 3.4 39.0 29 4 49.8
F67-3673 1.4 36.2 23 5 48.6
Bragg 2.1 35.2 18 Oct. 23 44.6
Hutton 1.1 34.0 22 Nov. 3 44.4
Vicoja 4.1 41.8 28 1 44.2
Centennial 1.6 33.8 17 Oct. 21 42.4

LSD 0.05 0.6 2.5 2 days 5 days 5.6
0.01 0.8 3.4 3 days 6 days 7.5

Additional varieties grown in same field but not in main trial:
Hampton 266A 2.5 37.0 Nov. 7 Nov. 20 47.8
Coker 338 1.5 30.0 7 17 47.1
Jupiter 4.5 56.0 12 25 46.4
UFV-1 4.5 46.0 7 20 38.4

aData are averages from 4 replications.
Varieties are ranked in order of decreasing yield.

CLodging ratings: l=erect; 5=all plants lodged.
dHeight: Plants measured from soil level to top of main stem.

eMaturity: Average date when pods and stems became dry.
fYields followed by the same line do not differ significantly from each hther
at the 5% level, using Duncan's Multiple Range Test.











Table 2-Response


of soybean varieties grown on Everglades mucky peat
at Zellwood in 1975a.


b Lodging Height Maturitye Yield
Variety rating (inches) Pods Stems bu/acre
--- date
Cobb 3.3 39.0 Nov. 1 Nov. 11 60.8
Santa Rosa 4.8 49.3 3 11 57.1
Mineira 3.8 42.3 1 9 56.0
Hardee 2.3 38.0 Oct. 28 4 55.7
Vicoja 4.3 48.3 Nov. 1 9 53.2
UFV-1 4.3 47.3 13 15 51.0
Centennial 1.8 28.3 Oct. 20 5 50.8
Davis 1.7 32.3 22 Oct. 30 50.0
Forrest 2.3 23.7 25 Nov. 7 48.7
F71-1138 1.8 28.3 31 11 48.5
Bragg 2.2 30.0 24 3 47.8
Tracy 1.3 28.3 18 7 47.6
IAS-1 1.8 32.3 22 7 44.9
Hutton 1.5 28.7 24 3 44.3
Hampton 266A 2.3 34.3 30 9 44. 0
Ransom 1.8 31.7 27 11 43.0
NAPB-805 1.8 30.3 31 14 41.6
Dare 1.0 25.7 17 Oct. 30 41.4
F67-3673 1.8 27.3 24 Nov. 7 39.6
Essex 1.2 23.7 24 8 38.2
Jupiter 5.0 50.0 Nov. 14 18 37.9
McNair 600 2.2 26.3 Oct. 16 Oct. 29 34.9
Coker 338 1.8 26.3 29 Nov. 13 26.5
LSD 0.05 0.5 3.8 3 days 7 days 12.1
0.01 0.7 5.0 4 days 5 days 16.2

aData are averages from 3 replications.
varieties are ranked in order of decreasing yield.
c
Lodging ratings: l=erect; 5=all plants lodged.
dHeight: Plants measured from soil level to top of main stem.
e
Maturity: Average date when pods and stems became dry.
Yields followed by the same lind do not differ significantly from each other at the
5% level, using Duncan's multiple Range Test.




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