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Pear characters such as fruit ripening time, fruit weight, soluble solids, and flesh firmness were analyzed to obtain information on their inheritance using interspecific hybrid seedling populations of 17 crossing combinations between Pyrus pyrifolia and P. ussuriensis or P. bretschneider and their parental cultivars. The average values for the ripening time (calculated as days after full bloom), fruit weight, soluble solids, and flesh firmness in the parental cultivars were 193 days, 416 g, 14.5˚Bx, and 1.41 ㎏/5 ㎜ φ, respectively, and their coefficients of variation were 7.69, 20.22, 10.17, and 14.81%, respectively. The average values of individual crossing combination during 2000-2003 ranged from 159 to 185 days after full bloom, 291 to 447 g in fruit weight, 12.1 to 13.5˚Bx in soluble solids, and 1.06 to 1.89 ㎏/5 ㎜ in flesh firmness, and also the overall average values of the 17 cross combinations for these characters were 174 days after full bloom, 373 g in fruit weight, 12.7˚Bx in soluble solids, and 1.24 kg/5 mm in flesh firmness. The estimates of heritability for days after full bloom, fruit weight, soluble solids, and flesh firmness were in the range of 0.81-0.98, 0.11-0.85, 0.14-0.88, and 0.23-0.98, respectively. The average value of heritability was 0.94 in days after full bloom, 0.46 in fruit weight, 0.48 in soluble solids, and 0.70 in flesh firmness.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2009-525-016949490