2020 Soybean Maturity Group IV (MG 4.7–4.9) RR2X Variety Response to Iron Deficiency Chlorosis
Maturity Group IV (MG 4.7–4.9) RR2X Response to Iron Deficiency Chlorosis (IDC)
Brand |
Variety |
IDC tolerance score1 |
Avg. IDC tolerance score2 |
||||
---|---|---|---|---|---|---|---|
Delta Grow |
48X05 |
3 |
4 |
4 |
4 |
4 |
3 |
Credenz |
CZ 4810X |
3 |
4 |
4 |
4 |
3 |
3 |
LG Seeds |
LGS4899RX |
3 |
4 |
4 |
4 |
4 |
3 |
Dyna-Gro |
S48XT90 |
3 |
4 |
4 |
4 |
3 |
3 |
Progeny |
4970RX |
3 |
4 |
4 |
4 |
3 |
3 |
Delta Grow |
48X45 |
3 |
4 |
4 |
5 |
4 |
4 |
Local Seed |
LS4795XS |
3 |
4 |
4 |
4 |
3 |
4 |
Armor |
48-D25 |
3 |
5 |
5 |
4 |
4 |
4 |
Armor |
49-D14 |
4 |
4 |
4 |
5 |
4 |
4 |
NK |
S47-Y9X |
3 |
5 |
5 |
6 |
5 |
4 |
NK |
S49-F5X |
4 |
5 |
5 |
5 |
5 |
4 |
Mission |
A4950X |
4 |
4 |
4 |
4 |
4 |
4 |
GDM Seeds |
DM 47X39 |
4 |
5 |
5 |
5 |
5 |
4 |
GDM Seeds |
DM 49X13 |
4 |
5 |
5 |
5 |
5 |
4 |
Dyna-Gro |
S48XT56 |
3 |
4 |
4 |
5 |
4 |
4 |
Asgrow |
AG48X9 |
4 |
4 |
4 |
5 |
4 |
4 |
AgriGold |
G4995RX |
3 |
4 |
4 |
4 |
4 |
4 |
Great Heart Seed |
GT-4979X |
3 |
4 |
4 |
4 |
4 |
4 |
Great Heart Seed |
GT-4828X |
4 |
5 |
5 |
5 |
5 |
4 |
USG |
7480XT |
3 |
5 |
5 |
5 |
5 |
4 |
Progeny |
4816RX |
4 |
5 |
5 |
5 |
5 |
4 |
MorSoy |
MS 4846 RXT |
4 |
5 |
5 |
5 |
5 |
4 |
Credenz |
CZ 4730X |
5 |
6 |
6 |
6 |
5 |
5 |
Credenz |
CZ 4770X |
4 |
5 |
5 |
5 |
5 |
5 |
Local Seed |
LS4999X |
4 |
5 |
5 |
5 |
5 |
5 |
USG |
7496XTS |
4 |
5 |
5 |
6 |
5 |
5 |
Mission |
A4828X |
4 |
5 |
5 |
5 |
5 |
5 |
Dyna-Gro |
S47XT20 |
4 |
5 |
5 |
5 |
5 |
5 |
Dyna-Gro |
S49XT70 |
4 |
5 |
5 |
6 |
5 |
5 |
Pioneer |
P48A60X |
4 |
6 |
6 |
6 |
5 |
5 |
AgriGold |
G4820RX |
4 |
5 |
5 |
6 |
5 |
5 |
Great Heart Seed |
GT-4833XS |
4 |
6 |
6 |
6 |
6 |
5 |
Progeny |
4821RX |
4 |
6 |
6 |
6 |
6 |
5 |
Taylor Seed |
T4880XS |
5 |
6 |
6 |
6 |
5 |
5 |
Delta Grow |
49X25 |
4 |
7 |
7 |
7 |
7 |
6 |
Credenz |
CZ 4869X |
4 |
6 |
6 |
6 |
6 |
6 |
Credenz |
CZ 4979X |
4 |
6 |
6 |
7 |
6 |
6 |
USG |
7489XT |
5 |
7 |
7 |
8 |
7 |
6 |
Dyna-Gro |
S49XT21 |
5 |
6 |
6 |
7 |
6 |
6 |
Progeny |
4851RX |
5 |
6 |
6 |
7 |
6 |
6 |
Taylor Seed |
T4990XS |
5 |
7 |
7 |
7 |
7 |
6 |
Credenz |
CZ 4941X |
5 |
7 |
7 |
7 |
7 |
7 |
1Tolerance scores were assigned on a scale of 1 to 10 with 1 being completely tolerant and 10 being completely susceptible. The five individual columns under this heading present tolerance scores collected at different rating intervals throughout the growing season. They are displayed as an average across two Mississippi locations: Monroe County and Lowndes County. (p < 0.0001)
2Overall tolerance score averaged across all rating intervals and locations.
These data are intended to serve as an additional resource for variety selection specifically for soils with a history of problems associated with iron deficiency chlorosis. Consult other sources such as results from official variety trials and demonstration programs for detailed information regarding variety performance.
This publication was partially supported by the Mississippi Soybean Promotion Board.
Publication 3628 (POD-5-21)
By Trent Irby, PhD, Associate Extension Professor, Department of Plant and Soil Sciences.
The information given here is for educational purposes only. References to commercial products, trade names, or suppliers are made with the understanding that no endorsement is implied and that no discrimination against other products or suppliers is intended.
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