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O maracujazeiro-amarelo (Passiflora edulis Sims. f. flavicarpa Deg.) é a principal Passifloraceae cultivada no Brasil, e seu cultivo tem encontrado algumas dificuldades, principalmente no que concerne à longevidade dos pomares, a qual tem sido reduzida devido à incidência de doenças e nematoides que atacam o seu sistema radicular. Este trabalho teve por objetivo estabelecer tecnologias para a produção de mudas de maracujazeiro-amarelo, através da enxertia hipocotiledonar, sobre sete porta-enxertos. Os porta-enxertos utilizados foram: P. edulis f. flavicarpa; P. caerulea; P. alata; P. gibertii; P. coccinea; P. cincinnata e P. setacea. O delineamento experimental foi o inteiramente casualizado, com 36 repetições para cada porta-enxerto. As características avaliadas foram: percentual de sobrevivência dos enxertos, altura das plantas, número de folhas, diâmetro do porta-enxerto. A metodologia de enxertia hipocotiledonar testada foi bem-sucedida para a maioria das espécies testadas. Destacaram-se os porta-enxertos: P. caerulea; P. gibertii; P. cincinnata e P. flavicarpa, tanto pelo alto índice de pegamento como pela precocidade na obtenção da muda. The yellow passion fruit (Passiflora edulis Sims f. flavicarpa Deg.) Passifloraceae is the main crop in Brazil, and the crop has found some difficulties, particularly concerned to the orchards longevity, which has been reduced due to diseases and nematodes that attack the root system. This study was carried out to establish technologies for the production of seedlings of yellow passion fruit by hypocotyledonary grafting on seven rootstocks. The treatments used as rootstocks were: P. edulis f. flavicarpa, P. caerulea, P. alata, P. giberti, P. coccinea, P. cincinnata and P. setacea. The experimental design was completely randomized, with 36 replications for each rootstock. The percentage of graft survival, plant height, number of leaves and rootstock diameter were the characteristics evaluated. The hypocotyledonary grafting methodology was successful for most species tested. P. caerulea, P. giberti, P. cincinnata and P. flavicarpa were the stood out rootstocks by their high conditions of plants growth, and by their early plants production.

O trabalho foi realizado no ripado e na área de Fruticultura do Departamento de Produção Vegetal da Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), em Jaboticabal-SP, e em área de pequeno produtor fornecedor da Maguari (Kraft Foods do Brasil) em Araguari-MG, tendo por objetivo avaliar o desenvolvimento de maracujazeiro-amarelo enxertado por enxertia hipocotiledonar, sobre seis espécies de Passifloraceas. Foram utilizados sete tratamentos, sendo seis tratamentos com as espécies: P. edulis f. flavicarpa, P. caerulea, P. alata, P. gibertii, P. coccinea, P. cincinnata e um tratamento com pé-franco de P. edulis f. flavicarpa. Para todos os tratamentos, a variedade-copa utilizada foi o maracujazeiro-amarelo 'FB 200'. O delineamento experimental utilizado foi o de blocos ao acaso, com três repetições. A parcela foi constituída de uma linha de quatro plantas (20m lineares). A condução foi realizada conforme os tratos culturais recomendados para a cultura. As características avaliadas foram florescimento, produção, número e peso médio de frutos. Em Jaboticabal-SP, o pé-franco apresentou melhor desenvolvimento e maior produção que as plantas enxertadas. Em Araguari-MG, P. edulis f. flavicarpa, P. caerulea e pé-franco apresentaram melhor produção. Não houve diferença significativa no número de frutos, e o P. alata diminuiu, em relação aos outros porta-enxertos, o peso dos frutos. The study was conducted in the ripped and in the area of Fruit of the Department of Plant Production, Faculty of Agricultural and Veterinary Sciences, Universidade Estadual Paulista (FCAV/UNESP), in Jaboticabal-SP and in an area of a small producer supplier of Maguari (Kraft Foods of Brazil) in Araguari-MG, and aimed to assess the development of yellow passion fruit grafted by hypocotyledonary grafting, on six rootstocks of Passifloraceas. Seven treatments were used, with six treatments and rootstocks: P. edulis f. flavicarpa, P. caerulea, P. alata, P. gibertii, P. coccinea, P. cincinnata and treatment with non-grafted plants of the P. edulis f. flavicarpa. For all treatments the crown variety used was the yellow passion fruit plant 'FB 200'. The experimental design used was randomized blocks with 03 repetitions. The plot was formed in a line of four plants (20 linear meters). The conduction was done according to cultural treatments recommended for this culture. The evaluated characteristics were flowering, production, number and average fruit weight. In Jaboticabal-SP the seedling plants presented the better development and higher production than the others. In Araguari-MG P. edulis f. flavicarpa, P. caerulea, and seedling plants presented the better production. No differences between rootstocks were found to fruit number and P. alata decreased compared to the other rootstocks the fruit weight.

O experimento foi realizado em área de pequeno produtor fornecedor da Maguari (Kraft Foods do Brasil) em Araguari - MG, e teve por objetivo avaliar o desenvolvimento de maracujazeiro-amarelo propagado por enxertia hipocotiledonar, sobre cinco porta-enxertos de passifloráceas nativas. Os tratamentos utilizados foram cinco porta-enxertos: P. edulis f. flavicarpa, P. caerulea, P. alata, P. gibertii e P. cincinnata, e o maracujazeiro-amarelo de pé-franco como controle, totalizando seis tratamentos. Para todos os tratamentos, a variedade-copa utilizada foi o maracujazeiro-amarelo Cv. FB 200. O delineamento experimental utilizado foi o de blocos ao acaso, com três repetições. A parcela foi constituída de uma fileira de 20 metros de comprimento contendo quatro plantas. A condução foi realizada conforme os tratos culturais recomendados para a cultura. As características avaliadas foram: altura das plantas, número de folhas, diâmetro da região da enxertia, diâmetro do enxerto, diâmetro do porta-enxerto, relação enxerto/porta-enxerto. As plantas de P. edulis f. flavicarpa, P. caerulea e pé-franco apresentaram melhor desenvolvimento. Já as plantas sobre o porta-enxerto P. alata não desenvolveram bem. Embora as plantas de pé-franco tenham superado numericamente o desenvolvimento das enxertadas sobre P. cincinnata e P. gibertii, não houve diferenças significativas entre eles. O porta-enxerto P. alata influenciou negativamente na altura das plantas, número de folhas, diâmetro da região da enxertia, diâmetro do enxerto, diâmetro do porta-enxerto e na relação enxerto/porta-enxerto. The experiment was carried out in an area of a small producer supplier of Maguari (Kraft Foods of Brazil) in Araguari-MG, and aimed to assess the development of yellow passion fruit plant grafted on five rootstocks of native passifloraceas using the hypocotyledonary grafting method. The treatments used as rootstocks were P. edulis f. flavicarpa, P. caerulea, P. alata, P. gibertii and P. cincinnata. The yellow passion fruit non-grafted seedlings were used as control, completing six treatments. For all treatments, the yellow passion plant FB 200 was used as canopy crown variety. It was used the experimental design randomized blocks with three repetitions. The plot was formed by a line of 20 meters long containing four plants. The passion fruit planting was done according to cultural treatments recommended for this culture. The characteristics evaluated were plant height, number of leaves, diameter of the region of grafting, the scion diameter, diameter of the rootstock, relation between scion and rootstock. The plants of P. edulis f. flavicarpa, P. caerulea and the non-grafted seedlings showed better development. Plants of the rootstock P. alata had the worst development. Although the non-grafted seedlings have exceeded the development of grafted with P. cincinnata e P. gibertii, they did not differ significantly from them, and the rootstock P. alata negatively influenced on the plant height, number of leaves, diameter of the region of grafting, the graft diameter, diameter of the rootstock, relation between scion and rootstock.

Made available in DSpace on 2013-08-12T19:14:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-09-01 Made available in DSpace on 2013-09-30T17:57:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-09-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:16:36Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:16:36Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-09-01 The present work was conducted in a fruit tree propagation area of the Plant Production Department of the Faculdade de Ciencias Agrarias e Veterinarias, Universidade Estadual Paulista (FCAV/UNESP) in Jaboticabal, SP, and also in a commercial orchard in Araguari, MG, with the objective to verify the potential of vegetative growth (stem diameter, height of plants and leaf number) of plants of passion fruit (Passiflora alata Dryander), gotten by cutting and seed, comparing the initial development of plants in the field. This experiment was carried out from January 2002 to February 2003. The experiment using seeds was conducted at a shadow house, and the one that used cuttings in an intermitent mist. The cuttings and seeds were collected from adult plants which came from Passifloraceae Active Germoplasm Bank (BAG) of the Plant Production Department of FCAC/UNESP. For the cuttings, it was used the intermediate part of the branches in stadium of vegetative growth. The seeds, in order to obtain the seedlings, had been sown in plastic trays. Cuttings and seedlings were transplanted to plastic bags with substrate in shadow house and with daily irrigation. They were acclimatized and planted on field, after 60 days. on field, the stem diameter, plant height and number of leaves were better for cuttings than for seedlings in Jaboticabal, SP. In Araguari, MG, stem diameter was larger in the seedlings, which plant heights and number of leaves were larger on cuttings. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Acre, BR-69901180 Rio Branco, AC, Brazil UNESP, FCAV, BR-14884900 Jabolicabal, SP, Brazil UNESP, FCAV, BR-14884900 Jabolicabal, SP, Brazil