Hybrid Test Reports
(Continued from Page 8)
gray leaf spot (GLS), (from natural inoculum) was prevalent in
the surrounding area, very little GLS occurred in this plot.
However, NLB developed to high levels on several of the entries
and disease ratings were made on September 6 for NIB only.
Stalk rot, bird damage, and animal damage were not a problem at
any location other than at the Crawford County site mentioned
above.
Interpretation of results
Least significant difference (LSD) is the tool used to determine if
two average values are actually different statistically. The
difference between two hybrids must exceed the LSD value to be
considered significantly different Example for yield; LSD = 8.1
Bu/A; Hybrid X = 120.0 Bu/A; Hybrid Y = 105.0 Bu/A; 120.0 -
105.0 = 15.0 Bu/A difference. Since the difference between
Hybrid X and Y (15.0 Bu/A), exceeded the LSD (8.1 Bu/A),
Hybrid X was higher yielding due to hybrid superiority and not
simply as a result of uncontrolled environmental factors.
Results of the tests for short-season, early medium-season,
late iriedium-season, and late-season hybrids are available as
separate reports from county offices of Penn State Cooperative
Extension.
Members of the county-based extension staff assisted in
conducting these tests. Their efforts were essential to the success
ful completion of the trials and were greatly appreciated.
The tables in this report may be reproduced only in their entirety.
ENTRIES BY LOCATION
TaMa 2. Short-saasonQllatwfty Zona I)hybndparformanca for MMdual locations; yiaM is in bushab par acre and laaf Might (LI) ratings araOS-5.0,
whara O.S squab UtUa or no disaasa and 5.0 aquais pramatura daath.
Brand-Hybrid
Agway AQ4597 1432 157 4 1502 1401 3 0
Agway AQ4803 1312 160 8 132 6 149 4 31
Agway AG4696 6t 154 4 147 6 159 2 146 6 2 5
AgwayAQ47l7 1404 147.6 129 6 142 4 2 5
AgwayAQSO9S *V* V r 133.0 "100.6 ~V Vj£oM v" X 137.8 . ' 2.7 ' *
AagrowRX4S2YQ " m%i *' 1682 »4 .T 138.7 ’ 1 " ‘*lsB2* 22 '
ChamgroBo6l * . _ * :*, J 422 \1202 M'-wWi*.*- * *>180.4. , 8.1 , ,
Dakalb OKC46-26 1343 132.5 1492 1382 0.9
Dakaß) OKC4B-15 1269 148 9 143.1 1497 1.5
DaKaib DKCSI-88 132 4 1613 117.5 129 8 2 5
Dafcafc DKCS3-32 tL 1 02 3fc*»£lBS2 '*"&M|s22 > “ “<
boaUar*a236X % , * 27 - 4 f# 3.l**. * t
doabWr'a296XP WSfc&l*** Shs.o..
OoaWar’s 495 XY 159 2 1522 124 7 1426 22
Garat 8801 IT 1378 147.6 128.9 112 1 38
QaratW3o f 142 121-3 7 -(r^s-ji 2 ® .
NC+l32O 1173 164.6 1534 141 1 30
NK Brand N4S-A6 169 7 1731 143.2 151.6 2 6
NK Brand N5B-D1 1537 165 7 1230 134.0 1 9
sa*jia«y E3Ol *.- 5 7-*
Saafrrfy E 315 RR ' A f1F»5®146.7 > 2.7 -
BaadwayE3BB t <■ ; &*>f
Saadway E47S 124 4 156.6 106.4 137.4 22
Saadway E5OO CL 1102 178 7 112.7 1207 26
MEAN
LSD (005)
Tioga Lycoming
Marcar
150.6
18.5
1371
203
(Yiald)
135 7
12 7
1322
11.8
AVERAGE OVER LOCATIONS
Table 1. Short-season (Maturity Zone 1) hybrid performance combined
across four locations.
Brand-Hybrid
Garst 8966
Doebler’s 236 X
Doebler’s 296 XP
Seedway E3Ol
Hytest HT7345
Garst 8801 IT
NC+l32O
Garst 8830
Dekalb DKC4B-15
Agway AG4597
Agway AG4698 Bt 20.3 . 152.0 99.5
Agway AG4717 20.3 140.0 97.8
Seedway E 315 RR 20.4 146.6 94.0
NK Brand N45-A6 20.8 159.4 98.4
Agway AG4603 20.9 145.0 95.8
Seedway'E3BB iiir}*, '2l *l. ...1,130.2 ;96.2
Dekalb Dkc4e-26t>:%i .3"138.6 V ‘ 93.0
2U ' 97.0
Dekalb DKCSI-88 21.4 135.3 92.3
Chemgro 6051 21.5 131.0 98.9
Seedway E5OO CL 21.5 130.6 91.6
' ‘ ■-il3£o/,4' : V95.4
-U 99.0,
SeedwayE47s : 131.2 : , 97.4
Asgrow RX452 YG 23.6 158.1 97.9
NK Brand N5B-D1 24.5 144.1 95.2
Dekalb DKCS3-32 25.1 157.9 96.6
(NLB)
MEAN
LSD (0.05)
Lancaster Farming, Saturday, January 19,2002, Corn Talk-
Grain Grain Erect Bushel
Moisture Yield Plants Weight
(%) (bu/acre) (%) (lbs)
19.8
20.3
20.3
20.9 138.9 95.5
0.6 8.0 2.7
TWO-YEAR AVERAGE
Table 3. Two-year average of short-season (Maturity Zone 1) hybrids that
were entered in both the 2000 and 2001 tests.
Brand-Hybrid
Agway AG4597
Agway AG4603
Dekalb DKCS3-32
Doebler’s 236 X
Garst 8830
NK Brand N5B-D1
Seedway E3Ol
Seedway E 475
MEAN
SILAGE ENTRIES
Table 4. Silage performance of short-season (Maturity Zone 1) hybrids.
Brand-Hybrid
Doebler’s 469 XP
Seedway E 409 L
Hytest HT7350 RR
Seedway E 390 L
Hytest HT7415
Dekalb DKCS3-32
Golden Harvest H-81
Doebler’s 596 XY
Dekalb DKCS6-71
MEAN
LSD (0.05)
a Yields are standardized to 65% moisture,
b Plant moisture at the time of harvest.
- X * **
116.1
126.1
131.8
145.5 ,
139.5 ,
131.6
144.1
136.7
142.2
147.7
Grain Gram Erect Bushel
Moisture Yield Plants Weight
(%) (bu/acre) (%) (lbs)
136.1
134.2
136.0
121.0
124.5
128.8
132.2
125.0
129.7
22.0
Plant
Yield 3
(tons/acre)
22.8
2.9
; • (Turn fo' Pago' td> ’
95.6
95.2
94.5
53.5
52.6
50.2
54.0
0.6
51.9
96.6
Dry
Moisture b Matter Yield
(%) (tons/acre)
64.2
3.4
193
8.0
1.0