四川农业大学学报 ›› 2019, Vol. 37 ›› Issue (03): 321-329.doi: 10.16036/j.issn.1000-2650.2019.03.007

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不同叶面积指数对“黄果柑”光合特性及果实品质的影响

邱霞1, 孙国超2, 熊博1, 廖玲1, 汪志辉1,2,*, 王迅2, 祝进3   

  1. 1.四川农业大学园艺学院,成都 611130;
    2.四川农业大学果蔬研究所,成都 611130;
    3.四川省园艺作物技术推广总站,成都 610041
  • 收稿日期:2018-06-19 出版日期:2019-06-28 发布日期:2021-01-29
  • 作者简介:邱霞,博士研究生。*责任作者:汪志辉,教授,主要从事果树栽培与生理研究,E-mail:wangzhihui_siau@126.com。
  • 基金资助:
    四川省教育厅项目(14CZ0002); 四川省科技厅项目(2016NZ0056)

Effects of Leaf Area Indexes on Photosynthetic Characteristics and Fruit Quality of Huangguogan Citrus

QIU Xia1, SUN Guochao2, XIONG Bo1, LIAO Ling1, WANG Zhihui1,2,*, WANG Xun2, ZHU Jin3   

  1. 1. College of Horticulture,Sichuan Agricultural University,Chengdu 611130,China;
    2. Garden Horticultural College,Chengdu Agricultural College,Chengdu 611130,China;
    3. Sichuan Horticultural Crop Technology Promotion Station,Chengdu 611141,China
  • Received:2018-06-19 Online:2019-06-28 Published:2021-01-29

摘要: 【目的】明确叶面积指数(LAI)对黄果柑光合作用能力及果实品质的影响。【方法】以黄果柑为试材,设置LAI为2.0、2.4、2.8、3.2和3.6共5个处理,对各处理的叶片光合特性及果实品质指标进行测定与分析。【结果】①随LAI降低,PnGsTr年均值升高,Ci降低;②随LAI降低,F0FmFv /Fm显著升高,Fv /F0略有升高;③随LAI降低,单果重、横纵径、TSS、总糖和糖酸比显著升高,果形指数和Vc差异不显著,TA含量显著下降。【结论】LAI的降低有利于黄果柑光合作用和果实品质的提高,LAI=2.0条件下,黄果柑光合能力和光合潜力较好,果实品质最佳,是黄果柑适宜的叶面积指数。

关键词: 叶面积指数, 黄果柑, 光合特性, 果实品质

Abstract: 【Objective】 The objective of this study was to explore the effect of leaf area index (LAI) on photosynthesis and fruit quality of Huangguogan citrus. 【Method】 Huangguogan citrus was used as the expeirmental material. Five leaf area indexes (2.0,2.4,2.8,3.2 and 3.6) were used in this study. The photosynthetic characteristics and fruit quality were measured and compared. 【Result】 Annual means of Pn, Gs, and Tr increased but Ci decreased with decreasing LAI., F0, Fm, and Fv /Fm significantly increased with decreasing LAI., single fruit weight, horizontal diameter, vertical diameter, TSS, total sugar content and sugar acid ratio increased but TA content decreased with decreasing LAI. There were no significant differences in fruit shape index and Vc content among treatments. 【Conclusion】 Lower LAI is beneficial to photosynthesis and fruit quality of Huangguogan citrus. Under the condition of LAI=2.0, photosynthetic capacity and potential of Huangguogan citrus was relative good and fruit quality was the best.

Key words: leaf area index, citrus Huangguogan, photosynthetic characteristics, fruit quality

中图分类号: 

  • S663.9