In tropical cohesive soils of Brazil, ‘Rangpur’ lime provide high fruit yield to ‘Pera’ sweet oranges. However, the predominance of a single rootstock puts the citrus industry in this region at risk. To identify promising rootstocks for diversification of ‘Pera’ sweet orange orchard's in the tropical cohesive soils of Brazil, a trial was established with 37 citrus rootstocks on the northeast coast of Brazil. The horticultural performance, fruit yield up to the tenth year, and physic-chemical fruit quality attributes were evaluated. The rootstocks induced changes in the tree size, cumulative fruit yield fresh mass and size of fruit, but had not significant influence on chemical fruit quality. The Hierarchical Cluster Analysis allowed group rootstocks into three classes, in which the accumulated fruit yield was the attribute that most contributed. A group with 15 rootstocks was chosen due to the best productive performance and fruits with 193.75–218.5 g, 57.36–62.65% of juice with 9.85–13.08° brix, which meets the requirement of the Brazilian market. Among these 15, the hybrid of ‘Volkamer’ lemon (VKL) with ‘Rangpur’ lime (RL), ‘Maravilha Sunki’ mandarin, ‘Indio’ citrandarin and the local selection of RL stood out by inducing the highest yield . VKL × RL – 030 produced fruits later, but favored the highest fruit yield at the tenth year. Trees grafted on these four rootstocks and also onto RLCNPMF, TSKC × CTQT1434 – 001, MXWL × LHA – 004, ‘Santa Cruz’ Rangpur, ‘San Diego’ citrandarin,– 004 and trifoliate TRH-208 had greater production regularity across the harvests, although the last three showed lower cumulative yield. The earliest fruit bearing was induced by TSKFL × CTC13 – 012, followed by the ‘Sunki' mandarin hybrids TSKC × CTQT1434 – 001, RL, TSKC x TRFD -007 and TSKC x CTSW-041. It is concluded that the most promising rootstocks for diversification of citrus orchards under rainfed condition on the northeast coast of Brazil are VKL x RL-030, ‘Maravilha Sunki’ , ‘Indio’, TSKFL × CTC13 – 012 and TSKC × CTQT1434 – 001, RLCNPMF – 004, TSKC x TRFD -007, TSKC x CTSW-041 and MXWL × LHA – 004.

在巴西的热带粘性土壤中，'Rangpur' 石灰为'Pera' 甜橙提供了高果实产量。然而，单一砧木的优势使该地区的柑橘产业面临风险。为了在巴西热带粘性土壤中确定有希望的'Pera'甜橙果园多样化的砧木，在巴西东北海岸对 37 个柑橘砧木进行了试验。对园艺性能、第 10 年的果实产量和物理化学果实品质属性进行了评价。砧木对树体大小、累计产量、鲜质量和果实大小有影响，但对化学果实品质影响不显着。层次聚类分析允许将砧木分为三类，其中累计果实产量是贡献最大的属性。选择 15 根砧木的组是因为生产性能最好，果实为 193.75–218.5 g，57.36–62.65% 的果汁具有 9.85–13.08° 白利糖度，符合巴西市场的要求。在这 15 个品种中，'Volkamer' 柠檬 (VKL) 与'Rangpur' 青柠 (RL)、'Maravilha Sunki' 柑橘、'Indio' 柑橘和本地选择的 RL 的杂交品种通过诱导最高产量脱颖而出。VKL 'Indio' citrandarin 和 RL 的本地选择通过诱导最高产量脱颖而出。VKL 'Indio' citrandarin 和 RL 的本地选择通过诱导最高产量脱颖而出。VKL× RL – 030 较晚结果，但有利于第十年的最高果实产量。嫁接在这四种砧木上以及 RLCNPMF、TSKC × CTQT1434 – 001、MXWL × LHA – 004、'Santa Cruz' Rangpur、'San Diego' citrandarin,- 004 和 trifoliate TRH-208 上的树木在整个收获期间具有更大的生产规律，尽管最后三个显示出较低的累积产量。最早的结果是由 TSKFL × CTC13 – 012 诱导的，其次是“Sunki”柑橘杂交种 TSKC × CTQT1434 – 001、RL、TSKC x TRFD -007 和 TSKC x CTSW-041。得出的结论是，巴西东北海岸雨养条件下柑橘园多样化最有希望的砧木是 VKL x RL-030、'Maravilha Sunki'、'Indio'、TSKFL ×CTC13 – 012 和 TSKC × CTQT1434 – 001、RLCNPMF – 004、TSKC × TRFD -007、TSKC × CTSW-041 和 MXWL × LHA – 004。