作者：Divanilde Guerra, Maria Teresa Schifino Wittmann, Sergio Francisco Schwarz ,Paulo Vitor Dutra de Souza , Mateus Pereira Gonzatto ,Roberto Luis Weiler
作者单位：Universidade Federal do Rio Grande do Sul (UFRGS), Faculdade de Agronomia, Programa de Pós-graduação em Fitotecnia,Departamento de Horticultura e Silvicultura, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre (RS), B
摘要：Tetraploid citrus rootstocks may present different morphological characteristics and growth when compared to diploid ones.
This worked aimed at comparing morphological characteristics and height growth of diploid and tetraploid plants from the
rootstocks ‘Swingle’ citrumelo [C. paradise Macf. x Poncirus trifoliate (L.) Raf], citrange ‘Troyer’ (C. sinensis (L.) Osb. x P. trifoliata)
and citranges ‘Fepagro C 13’ and ‘Fepagro C 37’ [C. sinensis cv. Pêra x P. trifoliata] during twelve months. Diploid (2n=18) and
tetraploid (2n=36) plants originated from the same seed were identified, cultivated and evaluated every 45 days regarding
color, height, petiole length, leaf length and central leaflet width. Significant differences were observed for the evaluated
characteristics: the average of petiole length was 1.78 cm in the diploid and 0.99 cm in the tetraploid plants; the average of
leaf length was 2.32 cm in the diploid and 2.95 cm in the tetraploid plants; the average of central leaflet width was 1.33 cm in
the diploid and 1.69 cm in the tetraploid plants. Moreover, tetraploid plants had darker and thicker leaves than the diploid ones.
Variation regarding height was observed and the diploid plants presented higher growth than the tetraploid ones. As tetraploid
plants are smaller, have a slow height growth and wider and longer leaves.
关键词：Citrus, morphology, leaf color, height, dwarfing.
文献注录：Divanilde Guerra, Maria Teresa Schifino Wittmann, Sergio Francisco Schwarz ,Paulo Vitor Dutra de Souza , Mateus Pereira Gonzatto ,Roberto Luis Weiler . Comparison between diploid and tetraploid citrus rootstocks: morphological characterization and growth evaluation [J]. Bragantia. 2014, 01: 1-7.
报/刊名：《Bragantia》，发表于2014 / 第 01 期。
文献类型： [J]
页码：第 1-7 页 / 共7 页