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2020 Soybean Maturity Group IV (MG 4.5–4.6) RR2X Variety Response to Iron Deficiency Chlorosis

Filed Under:
Publication Number: P3641
View as PDF: P3641.pdf

Maturity Group IV (MG 4.5–4.6) RR2X Response to Iron Deficiency Chlorosis (IDC)

Brand

Variety

IDC tolerance score1

Avg. IDC tolerance score2

Great Heart Seed

GT-4677XS

3

4

4

4

3

3

Delta Grow

46X65/STS

3

4

4

4

4

4

Credenz

CZ 4570X

4

5

5

5

4

4

Armor

46-D09

4

5

5

5

4

4

Mission

A4618X

4

4

4

6

4

4

Dyna-Gro

S45XS37

4

5

5

5

5

4

Dyna-Gro

S45XS66

4

5

5

5

5

4

Dyna-Gro

S46XS60

3

4

4

4

3

4

Asgrow

AG46X0

3

4

4

4

4

4

Pioneer

P46A86X

3

4

4

5

4

4

Credenz

CZ 4600X

4

5

5

6

5

5

Local Seed

LS4583X

4

6

6

6

5

5

Local Seed

LS4565XS

4

6

6

6

5

5

USG

7461XTS

4

6

6

6

5

5

GDM Seeds

DM 45X61

4

5

5

6

5

5

Asgrow

AG45X8

4

6

6

6

6

5

Asgrow

AG46X6

4

6

6

6

6

5

Great Heart Seed

G4620RX

4

5

5

5

5

5

MorSoy

MS 4616RXT/STS

4

5

5

5

5

5

LG Seeds

LGS4632RX

4

6

6

6

7

6

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 3641 (POD-6-21)

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