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Effect of duration of cold hardening and plant age on the development of frost resistance in winter wheat



Effect of duration of cold hardening and plant age on the development of frost resistance in winter wheat



Nauchno tekhnicheskii Byulleten' Vsesoyuznogo Selektsionno geneticheskogo Instituta (3): 13-17



The effect of seedling age, duration of cold-hardening phases I and II and temperature + light conditions during cold hardening on frost resistance was studied in four varieties differing in frost resistance. The first hardening phase had a major effect on resistance: after six days' hardening the percentage of plants surviving was 1% in Sadovo Super, 13% in Bezostaya 1 40% in Mironovka 808, and 68% in Odessa 16; after nine days' hardening the respective figures were 5, 32, 67 and 95%.

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