摘要
对4种不同材质的果袋,进行套袋微域生境及果实着色试验,结果表明,双层内红袋处理昼夜温差较大,9月18—21日和10月上旬晴天条件下,分别比对照高5.8℃和4.8℃;塑膜袋和双层纸袋保湿性较好,在晴热干燥、空气湿度过低时,可减轻相对湿度胁迫;双层纸袋遮光严重,晴天14:00双层内红袋和双层内黑袋袋内光辐射只有对照的0.8%和0.4%。不同套袋材料形成不同的微环境,对柿果着色产生不同的影响,双层内红处理果实着色最好,其次为双层内黑,其他处理与对照差异较小,9月25日调查,双层内红果皮色为N25B,对照为163B;10月15日双层内红为33A,对照为N25B。对甜柿果皮进行色素分析,发现不同处理柿果生长后期类胡萝卜素含量均提高,套纸袋处理降低果皮类胡萝卜素含量;双层纸袋处理后期类黄酮含量增加,其他处理及对照则降低,成熟期双层内红的果皮类胡萝卜素和类黄酮含量分别比对照降低0.017 8 mg·g-1和0.070 6 mg·g-1。
Effects of fruit bags on microenvironment and non-astringent persimmon pigmentation were studied with four kinds of bags. It was found that temperature difference between day and night inside dou- ble-layer bag with red interior layer was greatest among five treatments.Under the condition of sunny days, the temperature increased by 5.8 ℃ and 4.8℃ on September 18 to 21 and October 3 to 8 respectively, compared with that of the control. The effect of plastic film bag and double-layer bag on the moisture re- tention was better, which alleviated the relative humidity stress when air humidity was too low under fine, hot and dry weather. The light in double-layer bags was poor, there were only 0.8% and 0.4% PAR inside double-layer bag with red interior layer and double-layer bag with black interior layer rspectively at 14：00 pm on sunny days compared with the control. Different bagging materials formed different micro-environ- ment, which resulted in different effects on fruit coloring. The peel pigmentation was better in the treat- ment of double-layer bag with red interior layer, followed by double-layer bag with black interior layer. There was less difference between other treatments and control. On September 25, the peel pigmentation was N25B for double-layer bag with red interior layer, and 163B for control . On October 15, the peel pigmentation was 33A for double-layer bag with red interior layer, and N25B for control . It was found that at persimmon late growth stage, carotenoid content increased in all treatments, and paper bags re- duced carotenoids in peel In the late growth phase, the treatments reduced the flavonoid content except double-layer paper bags. Double-layer bag with red interior layer reduced Carotenoids and Flavonoids by 0.0178 mg. g-1 and 0.0706 mg g-1 at maturity compared with control.
出处
《果树学报》
CAS
CSCD
北大核心
2012年第2期193-198,I0002,共7页
Journal of Fruit Science
基金
山西省回国留学人员科研资助项目(2007-112)
关键词
甜柿
套袋
微域环境
着色
Non-astringent persimmon
Bagging
Microenvironment
Pigmentation
