Corn
1998 Dettling Corn Variety Strip Trial - Knights Landing Area
Cooperator:Gary Dettling
Planting date:April 15, 1998
Planter:Plate planter
Harvest date:October 8-9,1998
Area harvested per plot:6 rows, 2522 feet long
Soil type:South 40% is Yolo silt loam, Class 1; middle 40% is Brentwood silty clay loam, Class 1; and north 20% is Capay silty clay, Class II
Seed drop:6.4 inches
Planting depth:2-3 inches
Row spacing:30 inches
No. rows per plot:6
Replications:2
Previous crop:1997-Wheat
Fertilizer:12 gallons of 10-34-0 with zinc at planting banded 2" below and 2" to side of seed. Sidedressed 220 1bs. N as aqua on 5/20/98.
Irrigations:Six: 5/26, 6/18, 6/30, 7/13, 7/28, 8/13
Herbicide:One replication, Buctril plus Sencor
Location:Northwest corner of County Roads 99E and 13
 

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Brand Name Variety Lbs/acre @15.5% Moisture Duncan's Multiple
Range @
5% level		 Percent
Moisture
@ harvest		 Bu. Wt. Ear ht (inch) Days
to
bloom		 Plant
pop.
per acre
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1. NC+569711740A16.257.7 558332200
2. NC+ RE550 11660 A 14.6 60.0 58 83 31200
3. Golden Harvest EX313 11590 AB 17.2 59.2 55 86 33200
4. Asgrow XP8897 11420 AB 18.6 58.7 51 83 35200
5. Gutwein 2610 11380 AB 16.0 57.4 51 82 31800
6. Pioneer 3237 11350 AB 17.5 60.0 49 82 31700
7. Pioneer 33R87 11280 AB 14.9 63.1 55 82 30500
8. Simplot Big Maxx XL 11270 AB 16.9 60.2 63 88 30100
9. Gutwein 2656 11270 AB 15.2 60.0 55 84 31700
10. Cargill 8319 11260 AB 18.0 60.0 69 86 32000
11. Cargill X8601 11250 AB 16.5 60.0 67 84 30100
12. Golden Harvest H2564 11050 AB 15.2 59.4 61 82 30100
13. Simplot 96-4122 10700 BC 15.6 59.0 72 86 30800
14. Asgrow RX913 10660 BC 16.9 60.8 64 87 29200
15. SeedTec ST7525 10060 CDE 17.2 59.8 52 85 31000
16. Farm Valley 4656WX 9990 CDE 16.7 60.9 54 86 30600
17. Germain's BH4612 9900 CDE 16.1 58.9 49 81 33200
18. Germain's 5204 9850 CDE 15.1 60.1 52 82 30700
19. American Farm 8750* 9700 DE 15.7 60.4 61 87 31700
20. SeedTec ST7568 9560 E 17.9 59.2 58 88 30100
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C.V.%   3.6   1.9 0.8 7.7 1.4 3.2
L.S.D.@5%   808   0.6 1.0 9.3 2.4 2085
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*Used 3-year old seed that had poor vigor.
Remarks: There were very low infections of fusarium ear rot and common smut in this trial. Spider mite populations were low throughout the season. Temperatures were favorable during pollination. Cool, wet conditions brought on broadleaf weed problems in the corn rows, a moderate population of red root pigweed, lambsquarters and nightshade was present. One replication was treated with Butril plus Sencor. This combination herbicide gave good control of the broadleaf weeds, however, there was no yield difference between the treated replication and the untreated. Average yield treated replication (20 varieties): 10,740; untreated replication: 10,920.
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Modified: 3 Jan 2003
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