钙叶面肥对‘台农1号’百香果果实生长发育及柠檬酸积累的影响  

Effects of calcium foliar fertilizer on fruit growth and citric acid accumulation of passion fruit‘Tainong No.1’

作　　者：张小英 李嘉昱 王叶 龙秀琴 张子雄 滕尧 陈彩霞 ZHANG Xiao-ying;LI Jia-yu;WANG Ye;LONG Xiu-qin;ZHANG Zi-xiong;TENG Yao;CHEN Cai-xia(Guizhou Botanical Garden,Guiyang Guizhou 550004;Key Laboratory for Biodiversity Conservation in Karst Mountain Area of Southwestern Chian of the National Forestry and Grassland Administration,Guiyang Guizhou 550004;Institute of Mountain Resources of Guizhou Province,Guiyang Guizhou 550001)

机构地区：[1]贵州省植物园,贵州贵阳550004 [2]国家林业与草原局西南喀斯特山地生物多样性保护重点实验室,贵州贵阳550004 [3]贵州省山地资源研究所,贵州贵阳550001

出　　处：《中国土壤与肥料》2024年第6期209-214,共6页Soil and Fertilizer Sciences in China

基　　金：国家重点研发计划项目(2021YFD1100303);贵州省植物园青年基金项目(黔植园[2022]01号,黔科合基础-ZK[2022]一般292,黔林科合[2023] 06号,黔科院J字[2023] 16号,黔植科合Z[2023] 02号)。

摘　　要：以‘台农1号’百香果为试验材料,探究田间叶面喷施不同浓度梯度的CaCl_(2)处理对百香果果实生长发育及柠檬酸积累的影响。结果表明:与对照(CK)相比,两种浓度梯度CaCl_(2)处理果实单果重降低,果形指数、可食率、可溶性固形物增加,且在采后贮藏过程中其单果重及可溶性固形含量下降速率减慢。果实中柠檬酸含量分析结果表明2%CaCl_(2)处理在果实成熟期明显促进了柠檬酸的积累,4%CaCl_(2)处理在贮藏期可促进柠檬酸的积累。酶活性相关性分析结果表明磷酸烯醇式丙酮酸羧化酶、乌头酸代谢酶主要调控了柠檬酸的积累,是柠檬酸积累的关键酶。该结果对于了解百香果柠檬酸积累规律及将来进行品质改良具有重要的理论基础和实践意义。Taking‘Tainong No.1’passion fruit as the test material,the effects of spraying different concentration gradients of CaCl_(2) on the growth and citric acid accumulation of passion fruit were investigated.The results showed that compared with the contrd(CK),the single fruit weight of the two concentration gradients of CaCl_(2) treatment decreased,the fruit shape index,edible rate and soluble solids increased,and the decrease rate of single fruit weight and soluble solids content slowed down during postharvest storage.The results of citric acid content analysis showed that 2%CaCl_(2) treatment significantly promoted the accumulation of citric acid at fruit ripening stage,and 4%CaCl_(2) treatment promoted the accumulation of citric acid during storage.The results of correlation analysis of enzyme activity showed that phosphoenolpyruvate carboxylase and aconitic acid metabolic enzyme mainly regulated the accumulation of citric acid and were the key enzymes for citric acid accumulation.The results could have important theoretical basis and practical significance for understanding the accumulation of citric acid in passion fruit and future quality improvement.

关 键 词：‘台农1号’ CaCl_(2)处理 柠檬酸 

分 类 号：S667.9[农业科学—果树学]