Alfalfa Performance Table
- Organic Alfalfa Seed
- Non-GMO Alfalfa Seed
WSI |
FD |
DRI |
PRR |
SN |
BW |
FW |
VW |
APH 1 |
APH 2 |
An |
PA |
SAA |
T.T. |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.9 |
4.0 |
30/30 |
HR |
HR |
HR |
HR |
HR |
HR |
R |
R |
X |
|||
6.0 |
9.2 |
29/30 |
HR |
R |
HR |
HR |
R |
HR |
HR |
R |
R |
|||
2.2 |
2.8 |
24/30 |
MR |
MR |
R |
R |
R |
R |
R |
R |
X |
|||
2.5 |
3.0 |
27/30 |
R |
HR |
HR |
R |
R |
HR |
R |
|||||
2.1 |
4.0 |
29/30 |
HR |
HR |
HR |
HR |
R |
HR |
HR |
HR |
HR |
|||
2.2 |
2.0 |
11/30 |
S |
R |
R |
WSI |
FD |
DRI |
PRR |
SN |
BW |
FW |
VW |
APH 1 |
APH 2 |
An |
PA |
SAA |
T.T. |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.8 |
3.5 |
35/35 |
HR |
R |
HR |
HR |
HR |
HR |
HR |
HR |
R |
R |
X |
|
1.9 |
4.0 |
30/30 |
HR |
HR |
HR |
HR |
HR |
HR |
R |
R |
X |
|||
2.2 |
3.5 |
30/30 |
HR |
R |
HR |
HR |
HR |
HR |
HR |
R |
||||
2.0 |
3.7 |
30/30 |
HR |
MR |
HR |
HR |
R |
HR |
HR |
R |
R |
|||
2.0 |
3.5 |
29/30 |
HR |
MR |
HR |
HR |
R |
HR |
HR |
HR |
R |
X |
||
2.1 |
4.0 |
29/30 |
HR |
HR |
HR |
HR |
R |
HR |
HR |
HR |
HR |
|||
2.0 |
2.0 |
25/30 |
R |
HR |
R |
MR |
R |
HR |
X |
|||||
2.5 |
3.4 |
30/30 |
HR |
HR |
HR |
HR |
||||||||
6.0 |
HR |
HR |
R |
HR |
MR |
MR |
R |
HR |
||||||
2.6 |
3.0 |
26/30 |
HR |
R |
HR |
MR |
LR |
HR |
||||||
2.2 |
3.0 |
S |
R |
R |
||||||||||
2.2 |
2.0 |
11/30 |
S |
R |
R |
|||||||||
2.6 |
3.0 |
25/30 |
HR |
HR |
HR |
MR |
R |
|||||||
2.2 |
2.0 |
11/30 |
S |
R |
R |
Winter Survival Index (WSI) — A standardized test that measures the ability of alfalfa varieties to withstand severe winters. Varieties are rated from 1 (superior) to 4 (adequate). If a variety does not have a WSI rating, you can use the Fall Dormancy as a guide. The most persistent alfalfas are those with low WSIs and good pest and disease resistance. Fall Dormancy (FD) — The measure of how tall an alfalfa plant grows after the last cutting and before going dormant for the season. An alfalfa with a lower number goes dormant earlier in the fall. Disease & Pest Resistance (DRI) — Poorly drained fields require alfalfas with better disease resistance (especially Phytophthora and phanomyces). Select varieties with superior disease resistance to ensure a long, productive stand. |
PRR – Phytophthora Root Rot SN – Stem Nematode BW – Bacterial Wilt FW – Fusarium Wilt VW – Verticillium Wilt APH1 – Aphanomyces Race 1 APH2 – Aphanomyces Race 2 An – Anthracnose Race 1 PA – Pea Aphid SAA – Spotted Alfalfa Aphid T.T. – Traffic Tolerance Resistance Resistance HR = Highly Resistant R = Resistant MR = Moderately Resistant LR = Low Resistance S = Susceptible DRI = Disease Resistance Index (30 = highest, 6 = lowest) |