The Brazilian citrus industry is requiring the use of rootstocks adapted for use in high planting densities with elevated production efficiency of high quality fruits, and tolerant/resistant to abiotic and biotic stresses

FADEL, A. L.

GESTEIRA, A. da S.

GIRARDI, E. A.

LEÃO, H. C.

PASSOS, O. S.

RAMOS, Y. C.

SILVA, A. L. V.

SOARES FILHO, W. dos S.

STUCHI, E. S.

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DWARFING ROOTSTOCKS FOR ‘VALENCIA’ SWEET ORANGESoares Filho, WS1, Ramos, YC2, Silva, ALV3, Fadel, AL2, Stuchi, ES1, Girardi, EA1,Leão, HC3, Gesteira, AS1, Passos, OS1walter.soares@embrapa.br1Embrapa Cassava&Fruits, Cruz das Almas, Brazil2Universidade de São Paulo, Piracicaba, Brazil3Citrosuco S/A Agroindústria, Matão, BrazilThe Brazilian citrus industry is requiring the use of rootstocks adapted for use in highplanting densities with elevated production efficiency of high quality fruits, andtolerant/resistant to abiotic and biotic stresses. Hybrid rootstocks have been obtainedby the Citrus Breeding Program of Embrapa Cassava & Fruits, in Cruz das Almas,Bahia State, Brazil. Under rain-fed cultivation, the first four commercial crops of‘Valencia’ sweet orange budded onto several rootstocks were evaluated in themunicipal district of Colômbia, São Paulo State, Brazil (20° 19’ S, 48° 41’ W, 492 ma. s. l.). Results indicated that the hybrids TSKC (Sunki mandarin) x [LCR (Rangpurlime) x TR (trifoliate orange)] - 001, - 017, - 059 and - 073, TSKC x CTSW (Swinglecitrumelo) - 033 and - 041, LCR x TR - 001, LVK (Volkamer lemon) x LCR - 038 andHTR (trifoliate hybrid) - 051, - 053, - 069 and - 116 would allow planting densitieshigher than those attained with the use of vigorous rootstocks. They also inducedhigher production efficiency (kg of fruits/m3 of canopy) and fruits with greater orequivalent juice quality in relation to Rangpur lime, the usual rootstock in Brazil.Additionally, LCR x TR - 001, TSKC x CTSW - 041, TSKC x (LCR x TR) - 059 andLVK x LCR - 038 induced enhanced tolerance to drought and more precocious fruitbearing to ‘Valencia’ sweet orange with results similar to Rangpur lime.

Dwarfing rootstocks for Valencia sweet orange.

http://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1000232/1/DwarfingrootstocksforValenciaIHC2014ABSTRACT02936Walter.pdf

Dwarfing rootstocks for Valencia sweet orange.

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