
%0 Journal Article
%A Cameron, DG 
%T Lucerne in wet soils &#8212; the effect of stage of regrowth, cultivar, air temperature and root temperature
%J Australian Journal of Agricultural Research
%D 1973/12/01
%V 24
%N 6
%P 851-861
%K 
%R https://doi.org/10.1071/AR9730851
%U https://www.publish.csiro.au/paper/AR9730851 
%X Hunter River lucerne grown in pots, was subjected to either 21&deg;C or 33&deg;C constant temperatures for the first 10 days of regrowth. At 33&deg;C, flooding immediately after cutting killed 85&#37; of the plants. Flooding 5 days after cutting killed 35&#37; of the plants. Even when plants were not killed by flooding at 33&deg;C they were severely checked, and made negligible regrowth during the next 30 days. At 21&deg;C no plants were killed by flooding. Plants flooded immediately after cutting were severely checked but those flooded 5 days after cutting were similar to the unflooded controls. Hunter River lucerne flooded under all combinations of 20&deg;C and 30&deg;C air and root temperatures for the first 5 days after cutting was more severely affected at both root temperatures than Rhizoma and Lahontan lucernes. High root temperature during flooding had a severe effect on all cultivars, but high air temperatures did not affect flooding reaction. Possible mechanisms by which flooding damage occurs are discussed. 
