Section 1
Chapter 46

Comparative morphological investigations on autotetraploid plants and their diploid counterparts in some grasses and clovers. 3. Perennial ryegrass (Lolium perenne L.)

Roo, R. de

Revue de l' Agriculture 26(1): 111-142


ISSN/ISBN: 0776-2143
Accession: 000045081

Early and late types were present in both diploid and tetraploid perennial ryegrass. Compared with diploids, tetraploids were darker in colour and showed small differences in leaf position and growth habit. All plant parts were better developed in tetraploids than in diploids. Tetraploids had a greater number of spikelets/spike and a greater number of flowers/spikelet, but had a smaller number of internodes, less compact spikes, fewer stems/plant and a smaller root-mass.

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