Growth and water use of Lolium perenne. II Plant growth.

Published online
07 Jul 1972
Content type
Journal article
Journal title
Journal of Applied Ecology

Lawlor, D. W.

Publication language


In Lolium perenne plants leaf and root extension growth decreased by 50% when plant water potential decreased from -3 bar to -6 bar and growth stopped at -16 bar. Dry matter accumulation and leaf area also decreased because of slower expansion growth. A small decrease in soil-water potential had a large effect on growth because of the more rapid decrease in plant water potential due to a large resistance. The causes of increased plant resistance and decreased growth are briefly discussed.

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