LI Hui,LI Baiyun.Relationship Among Leaf Canopy Micro Environment，Fruit Black Spot and Quality of Ziziphus jujuba cv.Lingwuchangzao During Maturity[J].Northern Horticulture,2025,(1):60-67.[doi:10.11937/bfyy.20242354]
叶幕微环境与灵武长枣成熟期果实黑斑及品质的关系
- Title:
- Relationship Among Leaf Canopy Micro Environment，Fruit Black Spot and Quality of Ziziphus jujuba cv.Lingwuchangzao During Maturity
- 文章编号:
- 1001-0009(2025)01-0060-08
- Keywords:
- Ziziphus jujuba cv.Lingwuchangzao; leaf canopy micro environment; fruit black spots; fruit quality
- 分类号:
- S 665.1
- 文献标志码:
- A
- 摘要:
- 以灵武长枣为试材，采用以小格子法将叶幕分为树冠上层、中层外围、中层内膛，研究了成熟期冠层不同部位的环境因子、果实黑斑发生率、果实色泽及品质相关指标，对叶幕微环境与果实黑斑发生率、品质进行相关性分析，探讨树冠不同部位果实黑斑和品质差异及其与环境因子的关系，以期为叶幕微环境调控管理提供参考依据。结果表明:在果实成熟期，灵武长枣树体冠层不同部位温度、湿度无显著差异，光照强度、光合有效辐射在各部位差异显著，上层、中层外围的光照强度、光合有效辐射显著高于中层内膛；果实黑斑发生率随着生长发育呈增加趋势，上层的果实黑斑发生率在9月24日时达到53.35%，中层内膛的果实黑斑发生率显著低于其他部位；与中层内膛的果实相比，上层、中层外围果实整体表现红色度高，亮度、黄色度低，果实可溶性固形物含量、可溶性糖含量、糖酸比相对较高，主成分果实品质综合评价显示上层>中层外围>中层内膛；相关分析表明，温度和湿度对果实黑斑发生、品质指标的影响不显著，光照强度、光合有效辐射均与黑斑发生率、a*/b*、纵径、横径、可溶性固形物含量、可溶性糖含量均呈极显著正相关。综上，冠层不同的光环境是影响成熟期果实黑斑发生和品质形成的主要因素。
- Abstract:
- The Ziziphus jujuba cv.Lingwuchangzao were used as experimental materials.The canopy was divided into the upper，outer middle，and inner middle by the small grid method.The environmental factors，fruit black spot rate，fruit color，and quality related indicators of different parts of the mature canopy during maturity were studied.The correlation analysis among leaf canopy micro environment，fruit black spot rate and quality was conducted，and the fruit black spot and quality in different canopy positions and its relationship with environmental factors were explored,in order to provide reference for the regulation and management of leaf canopy microenvironment.The results showed that during the fruit ripening period，temperature and humidity were no significant difference in different canopy positions.There were significant differences in light intensity and photosynthetic effective radiation among different canopy positions，and the light intensity and photosynthetic effective radiation in the upper and outer middle canopy were significantly higher than those inside middle canopy.The incidence of fruit black spots increased with fruit growth and development.The incidence of black spots in the upper canopy reaches 53.35% at September 24th，while the incidence of black spots in the inner middle was significantly lower than other parts.Compared with fruits in the inner middle canopy，the fruits of upper and outer middle had a higher overall redness，lower brightness and yellowing.The soluble solids content，soluble sugars content，and sugar acid ratio of the fruits were relatively high.The comprehensive evaluation of fruit quality by principal component analysis showed that the upper>outer middle>inner middle.The correlation analysis showed that temperature and humidity had no significant impact on fruit black spots and quality indicators.Light intensity and photosynthetic effective radiation were highly significantly positively correlated with the black spots occurrence rate，a*/b*，longitudinal and transverse diameters，soluble solids content and soluble sugars content.In summary，the different light environments in the canopy were the main factors，which were affecting the fruit black spots occurrence and quality formation in maturity.
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备注/Memo
第一作者简介：李慧（1990-），女，硕士，助理研究员，现主要从事红枣栽培及育种等研究工作。E-mail：1063979927@qq.com.责任作者：李百云（1979-），男，硕士，副研究员，现主要从事果树栽培及育种等研究工作。E-mail：124495776@qq.com.基金项目：宁夏自然科学基金资助项目（2023AAC03425）；宁夏回族自治区银川市葡萄、枣国家林木种质资源库资助项目；银川市农业园区科技人才服务团队资助项目。收稿日期：2024-06-03