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园艺学报 ›› 2011, Vol. 38 ›› Issue (1): 133-133–138 .

• 研究报告 • 上一篇    下一篇

苹果3个早熟品种果实发育后期硬度及其相关生理指标的初步研究

刘超超1,魏景利2,徐玉亭1,焦其庆1,孙海兵1,王传增1,陈学森1,*   

  1. (1山东农业大学作物生物学国家重点实验室,山东泰安 271018;2山东省冠县国有毛白杨林场,山东冠县 252500)
  • 收稿日期:2010-10-23 修回日期:2010-12-06 出版日期:2011-01-25 发布日期:2011-01-25
  • 通讯作者: 陈学森

Preliminary Study on Firmness and Related Physiological Indices of Three Early-ripening Apple Cultivar During Late Development of the Fruit

LIU Chao-chao1,WEI Jing-li2,XU Yu-ting1,JIAO Qi-qing1,SUN Hai-bing1,WANG Chuan-zeng1,and CHEN Xue-sen1,*   

  1. (1State Key Laboratory of Crop Biology,Shandong Agricultural Uiversity,Tai’an,Shandong 271018,China;2Guanxian State Forest Farm of Populas Tomentosa,Guanxian,Shandong 252500,China)
  • Received:2010-10-23 Revised:2010-12-06 Online:2011-01-25 Published:2011-01-25
  • Contact: CHEN Xue-sen

摘要: 以‘泰山早霞’、‘极早红’和‘辽伏’3个早熟苹果品种为试材,研究果实发育期间果实硬度、细胞壁水解酶及淀粉酶活性、乙烯释放量的变化,旨在为探讨果实软化机理提供基本资料,并为早熟苹果品种软化的调控奠定基础。结果表明:① 3个参试品种果实发育过程中果实硬度基本均呈下降趋势,但品种间下降的幅度存在明显差异,其中‘辽伏’花后75 d硬度的下降幅度为35%,‘泰山早霞’50%,‘极早红’53%;② 3个品种果胶甲酯酶(PE)和淀粉酶(Amylase)活性差异不明显,‘泰山早霞’、‘极早红’的多聚半乳糖醛酸酶(PG)、纤维素酶(Cx)活性明显高于‘辽伏’,3个品种PG酶、Cx酶活性变化与其果实硬度变化呈显著负相关;③ 3个参试早熟苹果品种果实发育过程中,乙烯释放量与PG酶、Cx酶活性呈显著正相关。

关键词: 苹果, 早熟品种, 果实硬度, 生理指标

Abstract: In order to study the mechanism of softening in early-ripening apple cultivars,the fruit hardness,activities of amylase,cell wall hydrolysis enzymes and ethylene production were compared among three early-ripening apple cultivars. The results indicated that:① The fruit hardness of the three cultivars decreased during fruit development,however,in 75 days after blooming date the declining ranges were different in the three cultivars. The declining range of‘Liaofu’was 35% while that of‘Taishan Zaoxia’and‘Jizaohong’were 50% and 53%,respectively;②Activity of PE and amylase of the three cultivars showed little differences. The activities of PG and Cx in‘Taishan Zaoxia’and‘Jizaohong’were significantly higher than that of‘Liaofu’,and the activities of PG and Cx in the three cultivars were negatively correlated with fruit hardness;③ Ethylene production was positively correlated with the activity of PG and Cx during fruit development.

Key words: apple, early-ripening cultivar, fruit firmness, physiological index

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