Converse of subject

• dominate: Some of the pastures are sown grasslands dominated by ryegrass and few other species - low biodiversity is in-built.

Converse of object

• contain: Having determined that the area under consideration does not contain ryegrass the second consideration is the age of the sward.

• include: This mix includes a dwarf ryegrass to increase the hardiness of the sward.

Adjective modifier

• perennial: Sheep and cattle given a free choice between perennial ryegrass and white clover tend to select a mixed diet with perhaps two thirds clover.

• Italian: Italian ryegrass is one of the most important forage grasses in temperate regions.

• rigid: Current status The first documented case of glyphosate resistance was reported in 1996 involving rigid ryegrass in Australia.

• hybrid: Italian or hybrid ryegrass may be sown alone ( for short term swards ) or with perennial ryegrass.

Modifies a noun

• sward: Grass silage containing 296 g VCDM per kg FW was produced from the primary growth of a perennial ryegrass sward.

• plant: Similarly a raised height of cut ( e.g. on a winter sports pitch will help the ryegrass plant population to dominate ).

• ley: Very small losses were found under a vigorously growing Italian ryegrass ley.

• mosaic: Molecular cloning and nucleotide sequencing of a South African isolate of ryegrass mosaic virus and in vitro expression of the coat protein gene.

• virus: Molecular cloning and nucleotide sequencing of a South African isolate of ryegrass mosaic virus and in vitro expression of the coat protein gene.

• population: Similarly a raised height of cut ( e.g. on a winter sports pitch will help the ryegrass plant population to dominate ).

Noun used with modifier

• dwarf: This mix includes a dwarf ryegrass to increase the hardiness of the sward.

• %: Contains 70 % amenity ryegrass and 30 % creeping red fescue.