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Italian ryegrass (L. multiflorum) tetraploid. Poly-ploidization, breeding; treatment and comparative investigations with diploids



Italian ryegrass (L. multiflorum) tetraploid. Poly-ploidization, breeding; treatment and comparative investigations with diploids



Z. Pflanzenz 47: 369-87



Compared with diploid strains, tetraploid C4strains developed from colchicine-treated seed were equal in production of green matter, dry matter and crude protein, equal in seed yield, rather earlier in maturity, almost double in 1000-grain weight and superior in aftermath growth. There was a slight superiority in crude-protein content and, despite a lower leaf/stem ratio, a slight inferiority in dry-matter content.

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