Alfalfa Performance Table
- Alfalfa Seed
- Organic Alfalfa Seed
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 | |||
| 1.6 | 4.9 | 30/30 | HR | R | HR | HR | HR | HR | Hr | R | R | |||
| 1.4 | 3.9 | 35/35 | HR | R-HR | HR | HR | HR | HR | HR | HR | R | |||
| 3.0 | 3.8 | 30/30 | HR | R | HR | HR | HR | HR | R | R | X | |||
| 1.6 | 4.7 | 30/30 | HR | R | HR | HR | HR | HR | HR | R | R | |||
| 2.0 | 4.0 | 30/30 | HR | R | HR | HR | HR | HR | HR | HR | ||||
| 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 | ||
| 2.0 | 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 | 3.0 | 23/30 | HR | R | R | R | R | MR | ||||||
| 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. |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.9 |
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 |
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) |