C-value determinations on nuclei of the adaxial epidermal bulliform cells of leaves of perennial (Lolium perenne) and Italian ryegrass (Lolium multiflorum) show considerable levels of endopolyploidy.
The response of net photosynthesis to changing light-flux density by leaves of Lolium multiflorum (S. 22) and L. perenne (S. 321) is more adequately described by current models when a term allowing ...
Beddows, A R. 1953. The ryegrasses in British agriculture: a survey. Bull Welsh Pl Breed Sta, Series H., No. 17, 41–52. Brougham, R W. 1956. Effect of intensity of defoliation on regrowth of pasture.
COOPER 1 has recorded that Lolium temulentum is a long-day summer annual which shows no response to vernalization by low temperatures, and has no sharply defined critical photoperiod. My results, ...
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