
TY  - JOUR
A1  - Ivory, DA 
A1  - Whiteman, PC 
T1  - Effects of environment and plant factors on foliar freezing resistance in tropical grasses. II.* Comparison of frost resistance between cultivars of <I>Cenchrus ciliaris, Chloris gayana</I> and <I>Setaria anceps</I>
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1978
VL  - 29
IS  - 2
SP  - 261
EP  - 266
KW  - 
UR  - https://doi.org/10.1071/AR9780261 
N2  - The variability in foliar freezing resistance within and between five Cenchrus ciliaris, four Setaria anceps and six Chloris gayana ecotypes was examined in the laboratory over a sequence of freezing temperatures between &ndash;1.0&#176; and &ndash;6.25&#176;C. C. gayana and S. anceps ecotypes were generally more frost-resistant than C. ciliaris ecotypes. No significant differences in frost susceptibility were found in C. ciliaris, whilst S. anceps exhibited the greatest variability and C. gayana showed an intermediate degree of variability. The range of freezing temperatures which caused 50&#37; foliage death (LT50) in C. ciliaris was &ndash;1.8&#176; to &ndash;2.1&#176;, in C. gayana &ndash;2.6&#176; to &ndash;3.5&#176; and in S. anceps &ndash;2.1&#176; to &ndash;4.3&#176;.   ____________________ * Part I, Aust. J. Agric. Res., 29: 243 (1978). 
ER  -

