ALL Barenbrug permanent pasture ryegrass seed is tested for...

ALL Barenbrug permanent pasture ryegrass seed is tested for endophyte.
Type of endophyte is stated (e.g. NEA2).
Levels are given for the percentage of seed containing endophyte:
- NEA2, NEA, AR1 or AR37 : 70%+ of seed have stated endophyte
- LE or 'Low endophyte' : a low level of seeds have any endophyte

Endophyte levels in ryegrass seed drop off over time.
On-farm...

Endophyte levels in ryegrass seed drop off over time.
On-farm, store seed with novel endophytes in a cool, dry place. Sow seed within one month of purchase.
Commercial ryegrass seed with novel endophyte (e.g. NEA2, AR37) is carefully carried over between seasons using controlled humidity cool storage.

Seed certification is an industry programme to ensure cultivar...

Seed certification is an industry programme to ensure cultivar identity.
It is run by AsureQuality NZ Limited for the NZ Seed Quality Management Authority.

Describes the quality of a line of seed, laboratory tested in a...

Describes the quality of a line of seed, laboratory tested in a standard way.
All seed has its own line number, printed on the side of the seed sack and each line of seed has its own seed analysis certificate.
The National Seed Laboratory, run by AsureQuality NZ, produces a certificate for ALL certified seed. Certificates are available on all Barenbrug seed lines.

• Some ryegrass, red clover, lotus and brassica cultivars are...

• Some ryegrass, red clover, lotus and brassica cultivars are tetraploids.
• Tetraploids have four sets of chromosomes per cell, twice as many as normal diploid plants.
• Tetraploids usually have bigger darker leaves than diploids.
• In perennial ryegrass, tetraploids need different management for best performance.

Sowing rates for individual situations vary. The following are...

Sowing rates for individual situations vary. The following are general guidelines.