Effect of Various Citrus Rootstock-scion Combinations on Tree Growth,Fruit Quality,and Photosynthetic Characteristics under Red Loam Soil Conditions  

作　　者：Liying GUO Yanjun GUO Wenxia WU Xiaohua LI Haiyan JIANG Ying YUAN Guochan HUANG Qianhua JI 

机构地区：[1]Institute of Pomology,Zhaoqing University,Zhaoqing 526361,China [2]College of Life Sciences,Zhaoqing University,Zhaoqing 526361,China [3]Sihui Science and Technology Demonstration Park,Zhaoqing 526061,China

出　　处：《Asian Agricultural Research》2024年第10期41-49,共9页亚洲农业研究（英文）

基　　金：Supported by Earmarked Fund for China Agriculture Research System(CARS-26);Project of High-quality Development in Hundred Counties,Thousands Towns and Ten Thousand Villages.

摘　　要：[Objectives]To investigate the effects of 15 distinct citrus rootstock-scion combinations on tree growth,fruit quality,and photosynthetic characteristics under red loam soil conditions and provide a theoretical foundation for the selection of appropriate citrus rootstock-scion combinations in the Zhaoqing region.[Methods]A total of 15 citrus rootstock-scion combinations were utilized as test materials for a comprehensive analysis of their phenological periods(budding,flowering,and fruiting),tree growth indicators(tree height,crown diameter,and growth),and fruit quality(appearance quality and intrinsic quality).The photosynthetic characteristics of the test materials,including the net photosynthetic rate(Pn),transpiration rate(Tr),water use efficiency(WUE),apparent quantum yield(AQY),and carboxylation efficiency(CE),were analyzed to determine their significance.Additionally,the leaf photosynthetic physiological indicators,such as soluble protein,specific leaf weight,chlorophyll,and carotenoids,were evaluated.[Results]There were notable differences observed in the phenological period,growth potential of trees,fruit quality,and photosynthetic characteristics among various citrus rootstock-scion combinations.The phenological periods exhibited variation contingent on the grafting varieties.In terms of tree growth potential,the Citrus tangerina Tanaka‘Hongju’and C.haniana Hort.‘Suanju’rootstocks demonstrated greater tree height,crown growth,and overall tree strength;however,they were also prone to excessive growth.Conversely,the C.limonia Osbeck‘Hongningmeng’and C.sinensis×P.trifoliata‘Zhicheng’rootstocks displayed medium growth potential,while the Poncirus trifoliate(L)Raf.‘Zhike’rootstock resulted in shorter trees.In terms of fruit quality,the single fruit weight of C.flamea Hort.‘Shatangju’ranged from 33 to 50 g,exhibiting a flat and round shape.The total soluble solids and titratable acid content of‘Shatangju’grafted onto the‘Zhike’rootstock were notably high.In contrast,the single

关 键 词：CITRUS Rootstock-scion Tree growth Fruit quality Photosynthetic characteristics 

分 类 号：S666[农业科学—果树学]