http://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
http://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
http://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
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http://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
http://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
http://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
http://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
http://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
http://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2015, Vol. 42 ›› Issue (5): 817-825.doi: 10.16420/j.issn.0513-353x.2014-1046

• 果树 •    下一篇

根域蓄水调控对苹果叶片光合特性和抗氧化酶活性的影响

闫玉静, 白, 健, 付春霞, 范晓丹, 王衍安, 陈修德, 束怀瑞   

  1. 1山东农业大学生命科学学院/作物生物学国家重点实验室,山东泰安 271018;2山东农业大学园艺科学与工程学院,山东泰安 271018
  • 出版日期:2015-05-25 发布日期:2015-05-25
  • 基金资助:

    国家自然科学基金项目(31372015);山东省自然科学基金项目(ZR2013CM022);国家现代农业产业技术体系项目(CARS-28)

Effects of Water-storage Regulation Around Root on Photosynthetic Characteristics and Antioxidant Enzyme Activities of Apple Leaves

YAN Yu-Jing, BAI , JIAN , FU Chun-Xia, FAN Xiao-Dan, WANG Yan-An, CHEN Xiu-De, SHU Huai-Rui   

  1. 1State Key Laboratory of Crop Biology,College of Life Science,Shandong Agricultural University,Tai’an,Shandong 271018,China;2College of Horticulture Science and Engineering,Shandong Agricultural University,Tai’an,Shandong 271018,China
  • Online:2015-05-25 Published:2015-05-25

摘要: 以14年生盛果期红富士/平邑甜茶(Malus × domestica Borkh.‘Red Fuji’/ M. hupehensis Rehd.)为试材,研究“埋砖蓄水”根域调控处理对根域土壤环境和苹果树叶片生长、光合性能特性、抗氧化酶活力等的影响,为进一步优化有限灌溉条件下的果树栽培管理技术提供理论依据。试验结果表明:根域蓄水调控能显著提高不同深度土层含水量,增加苹果植株叶片含水量及叶绿素和类胡萝卜素含量、气孔导度(Gs)、胞间CO2浓度(Ci)和净光合速率(Pn);使叶片PSⅡ潜在活性(Fv/Fo)和性能指数(PIABS)提高,Tfm值降低,即提高了光能转化为化学能的转化速率;叶片的SOD、POD、CAT活性及MDA含量均显著低于对照。根域蓄水调控改善了根际土壤水分环境,提高了植株光合碳同化速率和电子传递速率,显著减少活性氧的产生,延缓叶片衰老,延长了叶片功能期。

关键词: 苹果, 根域蓄水调控, 光合特性, 抗氧化酶活性

Abstract: In order to offer the theoretical basis of limited irrigation conditions for fruit planting fourteen-year-old‘Red Fuji’apple trees(rootstock Malus × hupehensis Rehd.)in field were used as materials to explore the effects of water-storage regulation conduced by burying bricks around roots on the rhizosphere soil environment,leave growth,photosynthesis characteristics and antioxidant enzyme activities of apple leaves. The results showed that the water content of different soil depth enhanced;The water content,chlorophyll and carotenoid content,net photosynthetic rate(Pn),stomatal conductance(Gs)and intercellular carbon dioxide concentration(Ci)of apple leaves also increased by the water-storage root regulation treatment. While the PSⅡ potential activity(Fv/Fo)and performance index(PIABS),the value of Tfm decreased at the same time by the water-storage root regulation treatment,which indicated that the conversion rate from light energy to chemical energy increased by the water-storage root regulation treatment. Compared with the control,the SOD,POD,CAT activities and MDA content in apple leaves were decreased with the treatment. In conclusion,water-storage regulation treatment could improve the content of soil water,increase the rate of photosynthetic carbon assimilation and electron transport,significantly reduce the generation of reactive oxygen species,which finally delayed the senescence and prolonged the functional period of apple leaves.

Key words: apple, water-storage regulation treatment, photosynthesis characteristic, antioxidant enzyme activity

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