Group Title: Jay, ARC research report
Title: Variety trials of summer annual grasses, forage sorghums for silage, corn for silage, and perennial grasses
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 Material Information
Title: Variety trials of summer annual grasses, forage sorghums for silage, corn for silage, and perennial grasses
Alternate Title: Jay, ARC research report ; WF-79-1
Physical Description: 13 leaves : ; 28 cm.
Language: English
Creator: Dunavin, Leonard Sypret, 1930-
Agricultural Research Center, Jay, Florida, University of Florida
Donor: unknown ( endowment ) ( endowment )
Publisher: Agricultural Research Center, University of Florida
Place of Publication: Jay, Fla
Publication Date: 1979
Copyright Date: 1979
 Subjects
Subject: Grasses -- Varieties -- Florida   ( lcsh )
Forage plants -- Varieties -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
General Note: Caption title.
General Note: "January, 1979."
Statement of Responsibility: L.S. Dunavin.
 Record Information
Bibliographic ID: UF00095001
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 434480015

Full Text
Ioca
F636 m

/E S >AGRICULTURAL RESEARCH CENTER
Jay, Florida 32565 HU I I

Jay, ARC Research Report WF79-1 January, 1979
NOv s 1979
Variety Trials of Summer Annual Grasses, Iorage Sorghums
for Silage, Corn for Silage, and Pere t.gra.Of Flori

L. S. Dunavin1

Twenty-seven varieties of summer annual grasses were tested in 1978 to deter-
mine their potential for grazing, hay or green chop. The trial was planted on
March 28, 1978 at a seeding rate of 10 pounds per acre in rows spaced 3 feet
apart. Prior to planting, 400 pounds per acre of 8-24-24 were disked into the
soil. A side-dressing of 300 pounds per acre of ammonium nitrate was applied on
May 12. Two additional applications of ammonium nitrate at 100 pounds per acre
each were made on June 21 and August 7. Dry weather following planting reduced
the effectiveness of herbicides. Excessive rainfall occurred during the summer,
and weedy grasses were very competitive. Chinchbugs invading from surrounding
corn fields presented a problem. Yields were relatively poor in 1978, and only
four harvests were'obtained. Data are presented in Tables 1-5.

Fourteen varieties were included in the sorghum silage trial. This trial
was planted on March 28 at a seeding rate of 10 pounds per acre in rows on a
3-foot spacing. Prior to planting, 400 pounds per acre of 8-24-24 were disked
into the soil. A side-dressing of 300 pounds per acre of ammonium nitrate was
applied on May 12. The first varieties were ready for harvest on July 9 and
harvest was completed on July 25. The ratoon crop was top-dressed with 200
pounds per acre of annonium nitrate on August 7. The first varieties of the
ratoon crop were ready for harvest on November 4 and all other varieties were
harvested on November 13. Data are presented in Tables 6 and 7.

The corn silage test included ten varieties in 1978. This test was planted
on March 28 in rows spaced 3 feet apart. Forty grains of corn were planted per
16-foot row. The corn was thinned on May 17 to 22 plants per row. Prior to
planting, an application of 400 pounds per acre of 8-24-24 was disked into the
soil. On May 12, the corn was side-dressed with 300 pounds per acre of ammonium
nitrate. Dry weather following planting caused a delay in germination and uneven
emergence. This resulted in silking and tasseling over a relatively long period
for a given variety. The first varieties were ready for harvest on July 16 and
harvest was completed on July 23. Data are presented in Table 8.

Several warm season perennial grasses have been maintained in plots for
several years. The overburden was burned off of these plots on February 14. One
ton per acre of dolomitic limestone was applied in March. An application of 300
pounds per acre of 8-24-24 was made on March 31. Applications of 200 pounds per
acre of ammonium nitrate were made on June 1 and on August 16. Five harvests were
made and data are presented in Table 9.

Tall warm season perennial grasses have been maintained in plots for several
years. The overburden was burned off of these plots on February 14. One ton per
acre of dolomitic limestone was applied in March. An application of 300 pounds per
acre of 8-24-24 was made on March 31. Ammonium nitrate at a rate of 200 pounds per
acre was applied on June 1. Only one harvest was made in 1978. Data for this har-
vest and for preceding years are presented in Table 10.


1Associate Professor (Associate Agronomist).






Six warm season perennial grasses were established in 1977. An application
of 400 pounds per acre of 8-24-24 was applied on June 7, 1978. Ammonium nitrate was
applied at 100 pounds per acre on July 20 and at 200 pounds per acre on August 23.
Plots were mowed on July 6 and on August 23. No yield data were taken, but general
ratings are presented in Table 11.

Ten warm season perennial grasses were established in 1978. These plots were
established by setting a single row of plants down the center of the plot. An
application of 300 pounds per acre of 8-24-24 was made on May 25. Weedy grasses
inundated the area during the very wet summer, but a harvest with a calculated pure
forage yield was possible on September 6. An application of 200 pounds per acre of
ammonium nitrate was made on September 6. Data for this harvest and general ratings
through the autumn are presented in Table 12.

Precipitation data for 1978 are presented in Table 13.


-2-






Table 1


Dry Matter Yield of Summer Annual Grasses
Agricultural Research Center
Jay, Florida
1978


Entry
Millet:
Gahi-3
Pearl-Gro 421
Hybrid Millet G-112
Bingham Pearl
Bam 66
Bingham Hybrid
Sorghum-Sudangrass:
Sweet Sioux IV
Gator Grazer
SS1100
G-88F
Summergrazer
Sudax SX-16A
Faster Pasture FP-1
SSII
Sweet M
X-1777
Grazer N2
Wondergraze
GAS SS621
Drip-0-Honey
FFR-66
RX92SXS
Kow Kandy
FFR-74
Trudan 7
FFR-74A
Piper Sudangrass


Planted:
Fertilizer:


Chemicals:


Soil:


Brand

Ga. AES
Growers
Funk's
Bingham
Bamert
Bingham

ACCO
Fla. Seed & Feed
Coker
Funk's
Pennington
DeKalb
Funk's
Texas Triumph
McCurdy
DeKalb
Asgrow
Northrup-King
Growers
McNair
Gold Kist
Bingham
Surgro
Gold Kist
Northrup-King
Gold Kist
Northrup-King


March 28, 1978
400 pounds per acre


Yield In Pounds Per Acre
31 May 78 20 June 78 17 July 78 22 Aug 78 Total
1990 2070 3740 2930 10,730
3660 2250 2900 1610 10,420
2030 1650 3460 2180 9,320
2230 1890 2500 1380 8,000
1900 1680 3030 1280 7,890
1890 1770 2690 1310 7,660


2900
2290
2290
2090
2140
1800
1890
1940
2530
2710
2440
1990
1790
2070
1660
2130
1450
1350
1730
1750
1670


2450
1660
1350
1190
1320
1120
1440
1250
1210
650
1300
1270
1120
1050
950
1010
1300
1320
1090
1210
1120


2350
2390
2270
2380
2290
2250
2130
1940
1700
1970
1770
1710
1730
1630
1850
1410
1690
1470
1340
990
470


390
490
710
740
350
920
550
720
370
270
0
120
310
190
470
120
200
120
50
0
0


8,090
6,830
6,620
6,400
6,100
6,090
6,010
5,850
5,810
5,600
5,510
5,090
4,950
4,940
4,930
4,670
4,640
4,260
4,210
3,950
3,260


of 8-24-24 on March 22; 300 pounds per acre pf


ammonium nitrate on May 12; 100 pounds per acre of ammonium nitrate
on June 21 and again on August 7.
15 pounds per acre of Furadan 10 granules on March 28; one pound per
acre of Atrazine and 4 pounds per acre of Ramrod on March 30; two
pounds per acre of Sevin on June 23 and July 5.
Red Bay fine sandy loam (Rhodic Paleudult).


-3-






Table 2


Height of Summer Annual Grasses at Harvest
Agricultural Research Center
Jay, Florida
1978


Entry
Millet:
Gahi-3
Pearl-Gro 421
Hybrid Millet G-112
Bingham Pearl
Bingham Hybrid
Bam 66
Sorghum-Sudangrass:
Summergrazer
X-1777
Piper Sudangrass
Sweet M
Sudax SX-16A
Drip-0-Honey
Faster Pasture FP-1
Wondergraze
Grazer N2
GAS SS621
Kuw Kandy
Gator Grazer
SSII
Trudan 7
G-88F
RX92SXS
Sweet Sioux IV
FFR-74
FFR-74A
FFR-66
SS1100


Inches
31 May 78 20 June 78 17 July 78 22 Aug 78
45 43 58 50
54 44 52 41
37 39 50 47
49 44 53 48
47 44 56 50
47 39 58 43


-4-






Table 3

Disease of Summer Annual Grasses at Harvest
Agricultural Research Center
Jay, Florida
1978


Entry
Millet:
Gahi-3
Pearl-Gro 421
Hybrid Millet G-112
Bingham Pearl
Bingham Hybrid
Bam 66
Sorghurm-Sudangrass:
Summergrazer
X-1777
Piper Sudangrass
Sweet M
Sudax SX-16A
Drip-0-Honey
Faster Pasture FP-1
Wondergraze
Grazer N2
GAS SS621
Kow Kandy
Gator Grazer
SSII
Trudan 7
G-88F
RX92SXS
Sweet Sioux IV
FFR-74
FFR-74A
FFR-66
SS1100


Rating: 0 = no disease;
31 May 78 20 June 78
0 0
0 0
0 0
0 0
0 0
0 0


10 = complete coverage
17 July 78 22 Aug 78
0 3
1 3
1 2
1 3
1 3
1 3


-5-






Table 4


Maturity of Summer Annual Grasses at Harvest
Agricultural Research Center
Jay, Florida
1978


Entry
Millet:
Gahi-3
Pearl-Gro 421
Hybrid Millet G-112
Bingham Pearl
Bingham Hybrid
Bam 66
Sorghum-Sudangrass:
Summergrazer
X-1777
Piper Sudangrass
Sweet M
Sudax SX-16A
Drip-O-Honey
Faster Pasture FP-1
Wondergraze
Grazer N2
GAS SS621
Kow Kandy
Gator Grazer
SSII
Trudan 7
G-88F
RX92SXS
Sweet Sioux IV
FFR-74
FFR-74A
FFR-66
SS1100


V = Vegetative, B = Boot, A = Anthesis
31 May 78 20 June 78 17 July 78 22 Aug 78
V V V V
B V A A
B V B A
B B A A
B B A A
V B A A


Table 5


Average Annual Yield of Several Summer Annual Grasses
Agricultural Research Center
Jay, Florida
1978


Entry


Gahi-3
Pearl-Gro 421
Sweet M
Sudax SX-16A
Summergrazer


Millet
Millet
Sorghum-Sudangrass
Sorghun-Sudangrass
Sorghum-Sudangrass


Dry Matter In
1976 1977
14,200 14,700
10,500 10,000
10,700 8,400
9,500 8,500
8,100 9,400


Pounds Per Acre
1978 Average
10,730 13,210
10,420 10,310
5,810 8,300
6,090 8,030
6,100 7,870


-6-





Table 6


Sorghum Silage Variety Trial
First Harvest 1978
Agricultural Research Center
Jay, Florida


Total Dry Matter Green Forage Oven-dry Grain
Entry Brand (Pounds Per Acre) (Pounds Per Acre) (Pounds Per Acre)
FS-25A+ DeKalb 25,000a* 62,500 7300
Titan L Asgrow 24,500a 79,200 7400
3135 McNair 23,800a 70,000 7400
X-6808 ACCO 23,500a 44,300 5200
30F Growers 20,100ab 62,800 5200
102F Funk's 19,800ab 58,300 7900
X-2810 ACCO 19,800ab 53,500 6300
HO-K McNair 19,500ab 67,300 5300
Silo Milo Northrup-King 19,300ab 50,700 7300
Red Top Kandy Surgro 17,600 bc 67,500 6200
Silo Fill 35 Ring Around 16,500 bc 48,700 6900
FS-24+ DeKalb 15,190 bc 56,800 6500
G-103-S Funk's 13,400 c 46,300 5900
F-75 McCurdy 12,600 c 45,000 5200
*Those yields followed by the sane letter are not significantly different at the
5% level.


102F
HO-K
30F
Silo Fill 35
G-103-S
Silo Milo
F-75
Titan L
FS-24+
FS-25A+
Red Top Kandy
3135
X-2810
X-6808


Height
(Inches)
95
114
98
100
71
87
89
114
79
104
122
115
108
71


Lodged
(%)
25
13
24
30


Insect Damage
(0 = none; 10 = total)
1
1
1
1


Bird Damage
(0 = none; 10 = total)
0
0
1
0
0
0
0


Green Weight Basis
% Heads* % Leaves % Stalk
102F 20 8 72
HO-K 13 11 76
30F 17 15 68
Silo Fill 35 23 9 68
G-103-S 33 14 53
Silo Milo 29 16 55
F-75 23 9 68
Titan L 16 13 71
FS-24+ 22 21 57
FS-25A+ 23 21 56
Red Top Kandy 16 11 73
3135 21 13 66
X-2810 24 15 61
X-6808 26 18 56
*Includes rachis.


Dry
% Heads*
47
30
33
50
61
48
48
36
47
37
38
37
44
31


Weight Basis
% Leaves % Stalk
12 41
14 56
23 44
11 39
11 28
17 35
9 43
15 49
20 33
21 42
11 51
17 46
19 37
23 46


I


Continued ---


- 7 -






SPage 2 -


Table 6 (continued)
Sorghum Silage Variety Trial
First Harvest 1978


Entry
102F
HO-K
30F
Silo Fill 35
G-103-S
Silo Milo
F-75
Titan L
FS-24+
FS-25A+
Red Top Kandy
3135
X-2810
X-6808

Planted:
Soil type:
Fertilizer:

Chemicals:


Date
Headed
14 June
19 June
30 June
11 June
9 June
20 June
11 June
26 June
24 June
2 July
18 June
26 June
26 June
28 June


Date
Harvested
18 July
17 July
22 July
17 July
9 July
16 July
13 July
22 July
18 July
23 July
15 July
23 July
25 July
25 July


Disease at Heading
(0 none; 10 = total)
1
1
1
1
1
1
1


Disease at Harvest
(0 = none; 10 = total)
5
3
4
4
4


March 28, 1978.
Red Bay fine sandy loam (Rhodic Paleudult).
400 pounds/acre of 8-24-24 applied pre-plant; 300 pounds/acre of
ammonium nitrate as a side-dressing on 12 May.
15 pounds per acre of Furadan 10 granules on 28 March in furrow
prior to planting; Aatrex at one pound per acre and Ramrod at
4 pounds per acre as pre-emergent herbicides applied 30 March.


-8-






Table 7


Sorghum Silage Variety Trial
Second Harvest 1978
Agricultural Research Center
Jay, Florida


Entry Brand
FS-25A+ DeKalb
Silo Fill 35 Ring Around
3135 McNair
HO-K McNair
30F Growers
X-2810 ACCO
Silo Milo Northrup-King
X-6808 ACCO
Red Top Kandy Surgro
102F Funk's
F-75 McCurdy
FS-24+ DeKalb
Titan L Asgrow
G-103-S Funk's


Total Dry Matter Green Forage Oven-dry Grain
(Pounds Per Acre) (Pounds Per Acre) (Pounds Per Acre)
16,800 54,300 5000
15,900 48,300 5700
14,700 47,300 3400
13,700 47,300 4200
13,300 43,000 800
12,300 36,300 2500
11,800 33,700 4400
11,600 33,000 4500
11,400 39,300 3100
11,400 36,700 4200
10,900 37,700 2600
10,700 32,300 4400
10,700 32,300 2700
7,800 22,300 2600


102F
HO-K
30F
Silo Fill 35
G-103-S
Silo Milo
F-75
Titan L
FS-24+
FS-25A+
Red Top Kandy
3135
X-2810
X-6808


Height
(Inches)
79
98
97
100
65
83
98
102
67
102
99
101
91
68


Lodged
(%)
5
42
1
35
0
1
1
27
0
8
27
30
1
0


Insect Damage
(0 = none; 10 = total)


Bird Damage
(0 = none; 10 = total)
0
1
9
0
2
0
1
0
0
0
1


Green Weight Basis
Heads* % Leaves % Stalk
102F 22 9 69
HO-K 15 5 80
30F 6 10 84
Silo Fill 35 23 7 70
G-103-S 21 11 68
Silo Milo 26 9 65
F-75 16 7 77
Titan L 16 8 76
FS-24+ 26 14 60
FS-25A+ 18 10 72
Red Top Kandy 13 5 82
3135 16 8 76
X-2810 16 10 74
X-6808 29 13 58
*Includes rachis.


Dry Weight Ba-is
% Heads* % Leavcr Z Sta: k
40 18 42
32 1.n 58
8 .1: 13
40 i) 50
36 17 47
42 15 43
28 14 58
27 12 61
44 18 33
31 15 54
30 11 59
26 11 63
24 15 61
43 17 40


Continued ---


- 9 -







Page 2 -


Table 7 (continued)
Sorghum Silage Variety Trial
Second Harvest 1978


Date
Entry Headed
102F 5 Oct.
HO-K 28 Sept.
30F 10 Oct.
Silo Fill 35 7 Oct.
G-103-S 26 Sept.
Silo Milo 6 Oct.
F-75 3 Oct.
Titan L 3 Oct.
FS-24+ 2 Oct.
FS-25A+ 6 Oct.
Red Top Kandy 29 Sept.
3135 9 Oct.
X-2810 12 Oct.
X-6808 7 Oct.


Date
Harvested
13 Nov.
13 Nov.
13 Nov.
13 Nov.
4 Nov.
13 Nov.
4 Nov.
13 Nov.
13 Nov.
13 Nov.
13 Nov.
13 Nov.
13 Nov.
13 Nov.


Disease at Heading Disease at Harvest
(0 = none; 10 = total) (0 = none; 10 = total)
3 6
3 6
3 6


Fertilizer for this ratoon crop 200 pounds per acre of ammonium nitrate applied
on August 7.


- 10






Table 8


Corn Silage Trial
Agricultural Research Center
Jay, Florida
1978


Entry
77 (Coker)
XL395 (DeKalb)
G4810 (Funk)
G4880W (Funk)
3369A (Pioneer)
54 (Coker)
XL80 (DeKalb)
16 (Coker)
G4507 (Funk)
72-44A (McCurdy)
*Yields followE
5% level.


77
XL395
G4810
G4880W
3369A
54
XL80
16
G4507
72-44A


Total Dry Matter Green Forage Oven-Dry Grain
(Pounds/Acre) (Pounds/Acre) (Pounds/Acre)
15,600a* 45,800 5800
14,400ab 42,300 5600
13,600abc 35,800 6000
13,500abc 37,500 4200
13,300abc 33,400 6700
12,100 bcd 33,600 4200
12,100 bed 32,700 5300
11,500 bcd 29,500 5200
10,500 cd 32,700 4600
9,400 d 26,100 3700
ed by the same letter are not significantly different at the


Height
(Inches)
104
92
97
99
98
98
99
99
97
105


Date of
Harvest
23 July
23 July
23 July
23 July
19 July
23 July
21 July
16 July
16 July
19 July


Lodged
(%)
4
2
2
1
1
2
1
1
1
0


Disease
(0 10)
3
4
4
3
4
3
4
4
4
4


Green Weight Basis
% Ears** % Leaves % Stalk
77 40 21 39
XL395 40 17 43
G4810 46 16 38
G4880W 44 20 36
3369A 47 15 38
54 46 15 39
XL80 47 17 36
16 53 16 31
G4507 48 12 40
72-44A 49 14 37
**Includes shuck.


Planted:
Soil type:
Fertilizer:

Chemicals:


Dry Weight Basis
% Ears** % Leaves % Stalk
54 18 28
55 18 27
60 16 24
50 20 30
65 11 24
56 17 27
62 15 23
62 12 26
59 12 29
60 12 28


March 28, 1978.
Red Bay fine sandy loam (Rhodic Paleudult).
400 pounds per acre of 8-24-24 on March 22; Side-dressed with 300
pounds per acre of ammonium nitrate on May 12.
Aatrex at one pound per acre and Ramrod at four pounds per acre
as pre-emergence herbicides applied on March 30. These were not
very effective this year due to dry weather following application.
Furadan 10 granules at 15 pounds per acre applied just prior to
planting.


- 11 -






Table 9


Dry Forage Yield of Several Warm Season Perennial Grasses
Agricultural Research Center
Jay, Florida
1978


Redalta limpograss
Greenalta limpograss
Hemarthria altissima
Paspalum notatum
Paspalum notatum


P.I.349752
P.I.310149
P.I.310176


Yield in Pounds Per Acre
1 June 29 June 16 Aug 25 Sept 25 Oct Total
7130 1670 2510 3910 170 15,390
4170 1520 1980 3300 280 11,250
3380 1360 2190 3250 130 10,310
560 1910 2770 2480 450 8,170
260 920 1450 2310 520 5,460


Table 10


Annual Dry Forage Yield of Tall Warm Season Perennial Grasses
Agricultural Research Center
Jay, Florida


Pennisetum flaccidum P.I.220606
Pennisetum orientale P.I.219610
Sorghastrum pellitus P.I.310308
Tripsacum dactyloides ARCJ39
Vetivera zizanioides P.I.302300
*Only one harvest in 1978 (25


Yield
1973 1974
16,740 5,940
11,020 7,270
3,940 6,770
16,570 10,870
--- 5,020
October).


in Pounds Per Acre


1975
3,460
6,080
10,850
9,840
7,810


1976

6,960
11,440
8,000
6,460


1977 1978*
------ ----


8,000
12,030
9,510
10,900


6,000
13,700
6,920
10,060


Table 11


General Rating of Warm Season Perennial
Grasses Established In 1977
Agricultural Research Center
Jay, Florida
1978


General Rating (1 = Excellent; 10 Gone)
6 July 23 Aug. 15 Sept. 13 Oct. 15 Nov. Avg.
Hemarthria altissima P.1.364891 3 4 4 3 2 3
Hemarthria altissima P.I.349752 4 4 4 4 3 4
Callie bermudagrass* 6 5 4 3 3 4
McCaleb stargrass 8 7 5 4 3 5
Hemarthria altissima P.I.365509 8 7 5 7 5 6
Bigalta limpograss 9 8 7 9 7 8
*This grass would have had a higher rating except for one plot which may possibly
have been sprayed with a herbicide and in which the grass did not grow but did
not die.


- 12 -






Table 12


Perennial Grass Established In 1978
Agricultural Research Center
Jay, Florida
1978


Dry Forage
(Pounds/Acre)
Grass 6 Sept.
Tifton 44 bermudagrass 1580
Tifton 72-81 bermudagrass 3920
Coastal bermudagrass 1940
Tifton 74-68 bermudagrass 2400
Coastcross-1 bermudagrass 3160
Callie bermudagrass 4460
Alicia bermudagrass 3330
Redalta limpograss 1420
Hemarthria altissima P.I.364888 4380
Digitaria pentzii P.I.364587 1420
NOTE: Plots were established by setting a s


General Rating
(1 = Excellent; 10 = Gone)
13 Sept. 13 Oct. 15 Nov. Avg.
5 6 5 5
4 4 3 4
6 6 5 6
3 2 2 2
4 2 2 3
4 1 1 2
4 2 1 2
6 7 7 7
5 6 5 5
6 8 7 7
ingle row of plants down the cee


Table 13

Precipitation
Agricultural Research Center
Jay, Florida
1978


January
February
March
April
May
June
July
August
September
October
November
December
Total


Inches
12.78
3.83
6.04
6.14
9.63
11.28
12.08
6.76
4.16
0.00
4.13
3.72
80.55


- 13 -


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