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while the remaining varieties were susceptible or moderately
susceptible to low temperature at booting and fl owering stages.
These varieties from China (B55, Lijianghegu, Benjjiemang)
and one from Hungary (HSC55) showed consistent tolerance
to low temperature at all growth stages (Ye et al. 2012) (Tables
44 & 45).
Some rice varieties were searched in different countries
to have local cold tolerant rice varieties. In the quest of that
endeavour some rice varieties have been identified to be
examined for cold tolerance throughout the world for further
utilization.
Table 44
Cold tolerance of rice varieties at four growth stages (Ye et al. 2012 in
press).
Variety
Origin
Germination
Seedling
Booting
Flowering
Amaroo
Australia
S
T
S
S
B55
China
T
T
T
T
Benjiemang
China
T
T
T
T
HSC 55
Hungary
T
T
T
T
Jyoudeki
Japan
S
T
M
M
Langi
Australia
M
M
M
S
Lijiangheigu
China
T
T
T
T
M103
USA
M
M
M
T
M104
USA
M
M
M
T
Quest
Australia
M
T
M
S
Reiziq
Australia
M
T
M
S
YRL39
Australia
S
S
S
T
YRM 64
Australia
S
S
M
S
S-Suseptible; M-Moderate; T-Tolerant
