摘要
探讨红富士苹果裂纹机理,旨在为预防苹果裂纹提供理论依据。对北章果园红富士苹果裂纹发生的时期及程度进行了调查,研究了裂纹发生前后果皮内可溶性糖和果胶的动态变化。结果表明:北章果园红富士苹果裂纹发生在盛花后100 d,到盛花后151 d裂纹率达到了最高为92%;随着果实成熟,可溶性糖含量一直呈升高的趋势,原果胶呈先升高后降低的趋势。原果胶含量迅速下降,可溶性糖含量迅速升高,造成果皮内渗透势下降,果皮吸水后,表皮细胞胀裂。
Prevention of cracking of ‘Red Fuji＇ apples, during cracking. The occurrence and development requires the study of the physiological changes of fruit cracking in ’Red Fuji＇ apple were investigated. Changes in ,soluble sugars and pectin contents in peels during cracking were studied at Beizhang orchard, Baoding city. The results showed that the fruit cracking started 100 days after full bloom. Percentage of fruit cracking on 151 days after full bloom was 92 %. The .soluble sugars content in peels increased with the maturation of the fruit. Protopectin contents in peels reached the highest on 121 days after full bloom, and then descended dramatically. The reduction of protopectin contents and increase of soluble sugar content lead to a drop in the osmotic potential in the apple peel, therefore the peel absorbed much water and cracked.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2007年第2期54-56,共3页
Journal of Hebei Agricultural University
基金
河北省科技厅项目(01820196D)
河北农业大学9816项目
