Data/hora: 15/06/2024 00:25:55

Biblioteca(s): 	Embrapa Gado de Leite; Embrapa Tabuleiros Costeiros.	
Data corrente: 	21/07/2022	
Data da última atualização: 	30/11/2022	
Autoria: 	CARVALHO, H. W. L. de; CARVALHO, L. M. de; BARROS, I. de; TEODORO, A. V.; GIRARDI, E. A.; PASSOS, O. S.; SOARES FILHO, W. dos S.	
Afiliação: 	HELIO WILSON LEMOS DE CARVALHO, CPATC; LUCIANA MARQUES DE CARVALHO, CPATC; INACIO DE BARROS, CNPGL; ADENIR VIEIRA TEODORO, CPATC; EDUARDO AUGUSTO GIRARDI, CNPMF; ORLANDO SAMPAIO PASSOS, CNPMF; WALTER DOS SANTOS SOARES FILHO, CNPMF.	
Título: 	Productive performance of 'Pera' sweet orange grafted onto 37 rootstocks in tropical cohesive soils under rainfed condition.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	Scientia Horticulturae, v. 303, 111229, 2022.	
DOI: 	https://doi.org/10.1016/j.scienta.2022.111229	
Idioma: 	Inglês	
Conteúdo: 	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 CTSW041 and MXWL × LHA ? 004.	
Palavras-Chave: 	Early bearing.	
Thesagro: 	Citricultura; Cultivo de Sequeiro; Fruta Cítrica; Hibrido; Laranja Pêra; Poncirus Trifoliata; Porta Enxerto; Propriedade Físico-Química.	
Thesaurus Nal: 	Fruit quality; Hybrids.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Tabuleiros Costeiros (CPATC)	
Exemplares: 	CNPGL - (25723-1) - UPC - AP - DD -  -  -  - DIS
CPATC - (26045-1) - UPC - AP - DD -  -  -  - DIS