Title Page
Contents
ABSTRACT 5
INTRODUCTION 9
LITERATURE REVIEW 11
MATERIALS AND METHODS 15
RESULTS AND DISCUSSION 17
LITERATURE CITED 30
ABSTRACT IN KOREAN 36
Table 1. An example for calculation of percent injury at various temperatures measured... 22
Table 2. Contents of total soluble sugar, fructose, glucose, sucrose and maltose in current-year shoots of 8-year-old 'Taishuu' and 'Romang'... 28
Table 3. Correlation coefficients between freezing tolerance estimated as the temperature at... 29
Fig. 1. Average, maximum, and minimum daily air temperatures at the experimental site... 19
Fig. 2. Estimation of the temperature representing 50% injury occurred (LT50) in 'Romang'...[이미지참조] 20
Fig. 3. Seasonal fluctuations of freezing tolerance estimated as the temperature at which 50%... 21
Fig. 4. Comparison of freezing tolerance estimated as the temperature at which 50% injury... 24