pt-01-09 details:
DESCRIPTION
Summary: Harpin Use in Potatoes. PT-01-09 Details:. REPLICATED YIELD TRIALS WITH HARPIN αβ. Employ applied to foliage at 2.1 oz /acre in two regimes: 2 apps: end of set, and 3 weeks later (“X2”) 3 apps: end of set, 3 and 6 weeks later (“X3”) 2009 Trial Locations : Idaho: 5 - PowerPoint PPT PresentationTRANSCRIPT
PT-01-09 Details:• Employ applied to foliage at 2.1 oz/acre in
two regimes:• 2 apps: end of set, and 3 weeks later (“X2”) • 3 apps: end of set, 3 and 6 weeks later (“X3”)
• 2009 Trial Locations: • Idaho: 5• Washington: 4
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
UTC Employ X3 Employ X2
Stem
s/Pl
ant
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
18.7
18.8
18.9
19.0
19.1
19.2
19.3
19.4
19.5
19.6
19.7
UTC Employ X3 Employ X2Pl
ant H
eigh
t
On average, the treatments had fewer stems than the untreated control.
Treated plants tended to be slightly shorter than untreated plants.
Summary Across Trials for PT-01-09 & PT-02-09
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
0
2
4
6
8
10
12
UTC Employ X3 Employ X2Tu
bers
/Pla
nt0
1
2
3
4
5
6
7
8
9
10
UTC Employ X3 Employ X2
Early
Vig
or (0
-10)
Treated plants had more tubers than untreated plants.
Treated plants had higher early vigor than untreated plants.
Summary Across Trials for PT-01-09 & PT-02-09
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
400
410
420
430
440
450
460
470
480
490
500
UTC Employ X3Employ X2
Gro
ss Y
ield
(cw
t/Acr
e)
350
360
370
380
390
400
410
420
430
440
450
UTC Employ X3 Employ X2M
arke
tabl
e Yi
eld
(cw
t/Acr
e)
Treated plants had substantially higher marketable yields than untreated plants.
Treated plants had substantially higher gross yields than untreated plants.
Summary Across Trials for PT-01-09 & PT-02-09
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
0%
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
UTC 351 X3 351 X2
Perc
ent I
ncre
ase
in Y
ield
Gross Yield Marketable YieldUTC Employ
X3Employ
X2Gross Crop Value $3,242 $3,578 $3,542
Cost of Treatment
$ - $63.00 $42.00
Net Crop Value $3,242 $3,546 $3,521
Net Gain $ $305 $279 ROI 9.7 13.3
The 2 application regime had a lower net gain but a higher ROI than the 3 application regime. Crop value was calculated using 2009 Idaho fresh market prices of $8.50 for US#1, $6.00 for US#2, and $2.00/cwt for usable culls; and $10.50/oz for Harpinαβ.
Percent increase ranged from 7.4% to 8.7%.
Summary Across Trials for PT-01-09 & PT-02-09
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
Summary for PT-01-09 & PT-02-09:• On Average:
• treatments had no statistical effect on stand, stem number, vigor and plant height
• treatments increased tuber set, ranging from 22% to 23% - may have been applied a bit early
• treatments increased gross yield, ranging from 7.4% to 7.7%
• treatments increased marketable yield, ranging from 8.1% to 8.7%
Summary: Harpin Use in PotatoesREPLICATED YIELD TRIALS WITH HARPINαβ
Average of Trials 209089, 209090, 209091, 209092, 209093, 209095, 209097, 209109.
Summary for PT-01-09 & PT-02-09:• Yield increases came primarily from increased
set.• Marketable yields were improved more
than gross yields, demonstrating an increase in quality and improved crop value.
• Results were very similar to those seen with the timing trials and grower trials done with HarpinEa
Comments? – Questions?