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Grass Species - Definitions

 

MAJOR SPECIES

Italian Ryegrass

• short lived, low quality, long growing season, very high yields, good after cut recovery.

Perennial Ryegrass

• long lived, high quality, high yields, good sward density, large choice of varieties.

Hybrid Ryegrass (Italian x Perennial)

• a combination of qualities

White Clover

• persistent nitrogen fixing legume, dense growth habit with creeping stolons

MINOR SPECIES

Westerwolds

• high yielding low quality annual grass.

Cocksfoot

• low quality grass with extreme drought tolerance.

Festulolium (Ryegrass x Fescue)

• new hybrid just introduced into the UK
• high yields, persistent, stress tolerant, good quality available

Timothy

• cold/wet tolerant grass with good recovery from poaching but poor resistance to hard grazing

Red Clover

• short lived nitrogen fixing legume, erect growth habit, long tap root

TETRAPLOID vs DIPLOID

• All Ryegrass sub divided into Diploids & Tetraploids
• Tetraploids have twice the number of chromosomes
• Tetraploids are deeper rooting
• Tetraploids have larger leaves
• Tetraploids have a higher moisture content
• Tetraploids have a more erect growth habit
• Tetraploids are higher in sugar

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