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2020 Soybean Maturity Group IV (MG 4.7–4.9) RR2X Variety Response to Iron Deficiency Chlorosis

Filed Under:
Publication Number: P3628
View as PDF: P3628.pdf

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.

Department: Plant and Soil Sciences
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Authors

Portrait of Dr. Jon Trenton Irby
Associate Extension Professor