Effects of Different Seasons on Cutting Propagation of Five Citrus Rootstocks  

作　　者：Liying GUO Yun CHEN Meiling LI Yilin CHEN Wenwen HUANG Yuanmeng YU 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]Sichuan Science and Technology Demonstration Park,Zhaoqing 526061,China

出　　处：《Asian Agricultural Research》2024年第11期29-35,43,共8页亚洲农业研究（英文）

基　　金：Supported by National Modern Agricultural Industry Technology System Project of Ministry of Finance and Ministry of Agriculture and Rural Affairs(CARS-26);Guangdong Science and Technology Department Project of High-quality Development in Hundred Counties,Thousands Towns and Ten Thousand Villages.

摘　　要：[Objectives]To explore the cutting propagation mode of citrus rootstock,improve the survival rooting rate of citrus rootstock,and provide theoretical guidance and technical reference for the rooting research of difficult-to-root plants such as citrus.[Methods]Five citrus rootstocks Citrus tangerina Tanaka‘Hongju’,Citrus haniana Hort‘Suanju’,Citrus limonia Osbeck‘Hongningmeng’,Citrus sinensis×Poncirus trifoliata‘Zhicheng’and Poncirus trifoliate(L)Raf.‘Zhike’were used as experimental materials to select the suitable cutting substrate for citrus rootstocks by measuring the physical properties of the substrate.Cutting was carried out in spring,summer,autumn and winter respectively.After cutting,the morphological changes of cuttings were observed regularly,and the callus rate,germination rate and rooting rate of cuttings were recorded.[Results]The best substrate for citrus rootstock cutting was peat soil,vermiculite and fine river sand(2:1:1).The callus of citrus rootstock in different cutting seasons began to appear in 10-22 d,and the callus rate reached 55%-100%.In terms of budding,the budding time was the earliest in summer and autumn,and slightly later in spring and winter;the germination rate of C.limonia Osbeck‘Hongningmeng’was the highest,and the germination rate of C.sinensis×P.trifoliata‘Zhicheng’and P.trifoliate(L)Raf.‘Zhike’was lower;in terms of rooting,C.limonia Osbeck‘Hongningmeng’had the earliest rooting time and the highest rooting rate and could reach 100%in all seasons;the rooting rate of C.tangerina Tanaka‘Hongju’was 50%-80%;the rooting rate of C.haniana Hort‘Suanju’was 60%-80%;C.sinensis×P.trifoliata‘Zhicheng’and P.trifoliate(L)Raf.‘Zhike’showed the earliest rooting time and the highest rooting rate in summer,and the latest rooting time and the lowest rooting rate in winter,which were only 14.5%.Therefore,different citrus rootstock varieties should choose the appropriate cutting time according to their own characteristics.[Conclusions]The result

关 键 词：CITRUS Cutting propagation Rooting rate VARIETIES 

分 类 号：S666.2[农业科学—果树学]