scholarly journals DANO CELULAR E PIGMENTOS FOTOSSINTÉTICOS DO MARACUJAZEIRO-AZEDO EM FUNÇÃO DA NATUREZA CATIÔNICA DA ÁGUA

Irriga ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 663-669
Author(s):  
Geovani Soares de Lima ◽  
WESLLEY BRUNO BELO DE SOUZA ◽  
LAURIANE ALMEIDA DOS ANJOS SOARES ◽  
FRANCISCO WESLEY ALVES PINHEIRO ◽  
HANS RAJ GHEYI ◽  
...  
Keyword(s):  
Photosynthetic Pigments ◽  
Block Design ◽  
Passion Fruit ◽  
Cellular Damage ◽  
Control Treatment ◽  
Saline Stress ◽  
Passiflora Edulis ◽  
Passiflora Edulis Sims ◽  
E Mail ◽  
Sour Passion Fruit

DANO CELULAR E PIGMENTOS FOTOSSINTÉTICOS DO MARACUJAZEIRO-AZEDO EM FUNÇÃO DA NATUREZA CATIÔNICA DA ÁGUA   GEOVANI SOARES DE LIMA1; WESLLEY BRUNO BELO DE SOUZA2; LAURIANE ALMEIDA DOS ANJOS SOARES3; FRANCISCO WESLEY ALVES PINHEIRO4; HANS RAJ GHEYI5 E VALESKA KAROLINI NUNES OLIVEIRA6   1 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 - Universitário, Campina Grande, PB, Brasil. E-mail: geovani.soares@p             q.cnpq.br. 2 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected]. 3 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected]. 4 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 - Universitário, Campina Grande, PB, Brasil. E-mail: [email protected].  5Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 - Universitário, Campina Grande, PB, Brasil. E-mail: [email protected]. 6 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected].     1 RESUMO   Este trabalho teve como objetivo de avaliar o dano celular e os teores de pigmentos fotossintéticos do maracujazeiro-azedo em função da natureza catiônica da água de irrigação. O experimento foi desenvolvido sob condições de casa-de-vegetação em Pombal-PB. O delineamento experimental foi o de blocos casualizados, sendo os tratamentos constituídos de seis natureza catiônica da água (S1-Testemunha; S2 - Na+; S3 - Ca2+; S4 - Na+ + Ca2+; S5 - Mg2+ e S6 - Na+ + Ca2+ + Mg2+), distribuídos em delineamento de blocos ao acaso com quatro repetições, sendo a parcela constituída de duas plantas. As plantas do tratamento testemunha (S1) foram irrigadas com água de condutividade elétrica (CEa) de 0,3 dS m-1 e as demais (S2; S3; S4; S5 e S6) foram cultivadas com CEa de 3,0 dS m-1. A irrigação com água de composição Na+ e Na+ + Ca2+ resultou em maior dano celular nos tecidos foliares. A síntese de clorofila a foi inibida pela salinidade de natureza Mg2+ e Na+ + Ca2+ + Mg2+. A salinidade da água afetou negativamente os teores de clorofila b do maracujazeiro-azedo. O uso de água com composição sódica induziu aumento na síntese de carotenoides em plantas de maracujazeiro-azedo.   Palavras-chave: Passiflora edulis Sims, estresse salino, semiárido.     LIMA, G. S. de; SOUZA, W. B. B. de; SOARES, L. A. dos A.; PINHEIRO, F. W. A.; GHEYI, H. R.; OLIVEIRA, V. K. N. CELL DAMAGE AND PHOTOSYNTHETIC PIGMENTS OF THE SOUR PASSION FRUIT IN FUNCTION OF THE CATIONIC NATURE OF WATER         2 ABSTRACT   This study had the objective of evaluating the cellular damage and the levels of photosynthetic pigments of the sour passion fruit in function of the cationic nature of the irrigation water. The experiment was conducted under greenhouse conditions in Pombal -PB. The experimental design was randomized blocks, with treatments consisting of six cationic nature of water (S1 - Control; S2 - Na+; S3 - Ca2+; S4 - Na++ Ca2+; S5 - Mg2+ and S6 - Na++ Ca2++ Mg2+), distributed in a randomized block design with four replications, and each plot consisting of two plants. The plants of the control treatment (S1) were irrigated with water of electrical conductivity (ECw) of 0.3 dS m-1 while those of the other (S2; S3; S4; S5 and S6) were cultivated with ECw of 3.0 dS m-1. Irrigation with Na+ and Na++ Ca2+ water resulted in greater cellular damage in the leaf tissues. The synthesis of chlorophyll a was inhibited by salinity of Mg2+ and Na++ Ca2++ Mg2+. The salinity of the water negatively affected the chlorophyll b content of the sour passion fruit. The use of water with sodium composition induced an increase in the synthesis of carotenoids in sour passion fruit plants.   Keywords: Passiflora edulis Sims, saline stress, semiarid.

scholarly journals DEMANDA HÍDRICA DO MARACUJAZEIRO AMARELO (Passiflora edulis Sims f. flavicarpa Deg.)

Irriga ◽  
2002 ◽  
Vol 7 (3) ◽  
pp. 185-190
Author(s):  
Ana Alexandrina Gama da Silva ◽  
Antonio Evaldo Klar
Keyword(s):  
Water Demand ◽  
Crop Coefficient ◽  
Passion Fruit ◽  
Crop Water ◽  
Passiflora Edulis ◽  
Crop Water Demand ◽  
Passiflora Edulis Sims ◽  
E Mail ◽  
Fruit Formation ◽  
Yellow Passion Fruit

DEMANDA HÍDRICA DO MARACUJAZEIRO AMARELO (Passiflora edulis Sims f. flavicarpa Deg.)   Ana Alexandrina Gama da SilvaEmbrapa Tabuleiros Costeiros, CP 44, CEP 49025-040, Aracaju, SE. E-mail: [email protected] Evaldo KlarDepartamento de Engenharia Rural, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, CP 237, CEP 18603-970, Botucatu, SP. E-mail: [email protected] Científico do CNPq   1 RESUMO  Determinou-se à demanda hídrica e o coeficiente de cultivo (Kc) do maracujá amarelo (Passiflora edulis Sims f. flavicarpa Deg.), seleção Sul-Brasil, cultivado sob irrigação localizada, no município de Botucatu-SP (22o 51’ S,  48o 26’ W). A evapotranspiração máxima da cultura (ETc) e a evapotranspiração de referência (ETo) foram medidas em lisímetros de nível de lençol freático constante, durante o período de 29 de setembro de 2000 a 20 de julho de 2001. Os valores da ETc e ETo foram de 954,98 mm e  1.069,21 mm, respectivamente, durante todo o período medido. Os valores de Kc variaram de 0,42 a 1,12, com os valores máximos registrados entre 150 e 210 dias após o transplantio das mudas no campo (DAT), período correspondente aos estádios fenológicos de florescimento e formação dos frutos.  UNITERMOS: Passiflora edulis, evapotranspiração, coeficiente de cultivo (Kc).   SILVA, A.A.G. da, KLAR, A.E.  YELLOW PASSION FRUIT (Passiflora edulis Sims f. flavicarpa Deg.) CROP: WATER DEMAND.   2 ABSTRACT  Crop water demand and crop water coefficient (Kc = ETc/ETo) of yellow passion fruit were evaluated in constant level lysimeters under drip irrigation from September 21, 2000 to July 31, 2001 in Botucatu-SP. The maximum crop water demand (ETc) and the Reference Evapotranspiration (ETo), measured by lysimeters, were 954.98 mm and 1,069.21 mm, respectively, during all period measured. The values of Kc varied from 0.42 to 1.12  with maximum values registered from 150 to 210 days following transplanting during flowering and fruit formation  phases.  KEYWORDS: Passiflora edulis, evapotranspiration, crop coefficient (Kc). 

scholarly journals Microsatellite marker development by partial sequencing of the sour passion fruit genome (Passiflora edulis Sims)

BMC Genomics ◽  
2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Susan Araya ◽  
Alexandre M Martins ◽  
Nilton T V Junqueira ◽  
Ana Maria Costa ◽  
Fábio G Faleiro ◽  
...  
Keyword(s):  
Microsatellite Marker ◽  
Passion Fruit ◽  
Marker Development ◽  
Passiflora Edulis ◽  
Partial Sequencing ◽  
Passiflora Edulis Sims ◽  
Sour Passion Fruit

Genotypic selection of multispecific hybrids obtained through crosses between commercial Passiflora edulis and wild passiflora species

2021 ◽  
Vol 43 (1) ◽  
Author(s):  
Mara Cecília de Mattos Grisi ◽  
Nilton Tadeu Vilela Junqueira ◽  
Leo Duc Haa Carson Schwartzhaupt da Conceição ◽  
Fábio Gelape Faleiro ◽  
Marcelo Fideles Braga ◽  
...  
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Passion Fruit ◽  
Simultaneous Increase ◽  
Interspecific Crosses ◽  
Breeding Programs ◽  
Passiflora Edulis ◽  
Interspecific Introgression ◽  
Randomized Block Design ◽  
Sour Passion Fruit

Abstract The interspecific introgression of resistance genes to diseases in commercial varieties through interspecific crosses has been adopted as a strategy in breeding programs of sour passion fruit. This work aimed to evaluate 11 progenies of multispecific hybrids obtained from crosses involving seven Passiflora species, in addition to four commercial cultivars, using the REML/BLUP method. The experiment was carried out as a randomized block design with six repetitions and three plants per plot. Ten fruit traits were evaluated. The additive, multiplicative, and sum of ranks indexes were applied to determine the most appropriate selective strategy in the simultaneous increase of fruit weight, number of fruits, and yield. Plants from the 325 x VAO progeny showed a lower bacterial defoliation index and better means predicted for the traits number of fruits and productivity. The progenies 325 x LD4, PL3 x LD4, and the controls CSB-Marília and BRS-Gigante Amarelo showed plants with better-predicted means for traits related to fruit quality. The genetic gains demonstrated good prospects for the use of wild species in sour passion fruit genetic breeding.

scholarly journals Growth, photosynthetic pigments, and photochemical efficiency of sour passion fruit as a function of the cationic nature of water

2021 ◽  
Vol 42 (2) ◽  
pp. 583-598
Author(s):  
Francisco Jean da Silva Paiva ◽  
◽  
Geovani Soares de Lima ◽  
Vera Lúcia Antunes de Lima ◽  
Jailton Garcia Ramos ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Photosynthetic Pigments ◽  
Irrigation Water ◽  
Photochemical Efficiency ◽  
Passion Fruit ◽  
Control Treatment ◽  
Chlorophyll B ◽  
Academic Unit ◽  
Agricultural Engineering ◽  
Sour Passion Fruit

The objective of this study was to evaluate the growth, photosynthetic pigments, and photochemical efficiency of sour passion fruit cv. BRS Rubi do Cerrado irrigated with waters of different cationic natures. The experiment was carried out from March 2019 to January 2020 in a protected environment belonging to the Academic Unit of Agricultural Engineering of the Federal University of Campina Grande (UFCG), Campina Grande, PB, Brazil. The treatments consisted of eight combinations of irrigation water with different cationic natures: S1 - Control; S2 - Na+; S3 - Ca2+; S4 - Mg2+; S5 - Na+ + Ca2+; S6 - Na+ + Mg2+; S7 - Ca2+ + Mg2+, and S8 - Na+ + Ca2+ + Mg2+. Plants in the control treatment (S1) were irrigated using water with an electrical conductivity (ECw) of 0.4 dS m-1, while the other treatments (S2; S3; S4; S5; S6; S7; and S8) were subjected to an ECw of 3.5 dS m-1. Sour passion fruit growth was affected by variations in the level of electrical conductivity, regardless of the cationic nature of irrigation water. The use of salinized water with sodium favored the synthesis of chlorophyll a, chlorophyll b, and carotenoids of passion fruit plants at 180 days after transplanting. The distinct cationic natures of irrigation water did not influence the fluorescence variables of sour passion fruit.

scholarly journals MORFOFISIOLOGIA E QUALIDADE DE MUDAS DE MARACUJAZEIRO SOB DIFERENTES NATUREZAS CATIÔNICAS DA ÁGUA E H2O2

Irriga ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 184-205
Author(s):  
José Joedson Lima Silva ◽  
Geovani Soares De Lima ◽  
Lauriane Almeida dos Anjos Soares ◽  
Iara Almeida Roque ◽  
Maíla Vieira Dantas ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Salt Stress ◽  
Agricultural Sector ◽  
Block Design ◽  
Passion Fruit ◽  
Water Salinity ◽  
Stress Effect ◽  
Passiflora Edulis ◽  
E Mail

MORFOFISIOLOGIA E QUALIDADE DE MUDAS DE MARACUJAZEIRO SOB DIFERENTES NATUREZAS CATIÔNICAS DA ÁGUA E H2O2     JOSÉ JOEDSON LIMA SILVA1; GEOVANI SOARES DE LIMA2; LAURIANE ALMEIDA DOS ANJOS SOARES1; IARA ALMEIDA ROQUE1, MAÍLA VIEIRA DANTAS2 E LUDERLÂNDIO DE ANDRADE SILVA2   1 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, UFCG, Rua Jario Vieira Feitosa, 1770, Bairro dos Pereiros, Pombal, PB, Brasil. E-mail: [email protected]; [email protected]; [email protected]. 2 Unidade Acadêmica de Engenharia Agrícola, Universidade Federal de Campina Grande, UFCG, Rua Aprígio Veloso, 882 - Universitário, Campina Grande, PB, Brasil. E-mail: [email protected]; [email protected].; [email protected].     1 RESUMO   No decorrer dos anos, a salinidade das águas se tornou um dos principais obstáculos do setor agrícola. Este trabalho objetivou avaliar o crescimento, as relações hídricas e a qualidade de mudas de maracujazeiro irrigadas com águas de diferentes composições catiônicas e peróxido de hidrogênio. O experimento foi conduzido em condição de casa de vegetação, no munícipio de Pombal - PB, utilizando-se o delineamento em blocos casualizados, com fatorial 6 x 4, sendo seis composições catiônicas da água de irrigação [S1 – Testemunha (0,3 dS m-1); S2 - Na+; S3 - Ca2+; S4 - Na+ + Ca2+; S5 - Mg2+ e S6 - Na+ + Ca2+ + Mg2+) e quatro concentrações de peróxido de hidrogênio – H2O2 (0, 20, 40 e 60 μM), com quatro repetições. Com exceção do S1, os demais tratamentos foram irrigados com água de 3,6 dS m-1. A concentração de 40 µM de H2O2 reduziu o efeito do estresse salino na área foliar das plantas irrigadas com águas constituídas de Na+, Na+ + Ca2+ e Na+ + Ca2+ + Mg2+. As concentrações de 20 e 40 µM de H2O2 elevaram o índice de qualidade de Dickson das plantas irrigadas com água constituída de Na+ + Ca2+ + Mg2+.   Palavras-chave: Passiflora edulis f. flavicarpa, salt stress, peróxido de hidrogênio.     SILVA, J. J. L.; LIMA, G. S. de; SOARES, L. A. dos A.; ROQUE, I. A.; DANTAS, M. V.; SILVA, L. de A. MORPHOPHYSIOLOGY AND QUALITY OF PASSION FRUIT SEEDLINGS UNDER DIFFERENT CATIONIC NATURES OF WATER AND H2O2     2 ABSTRACT   Over the years, water salinity has become one of the main obstacles in the agricultural sector. This study aimed to evaluate the growth and quality of passion fruit cv. BRS GA1 as a function of different cationic nature of the water and exogenous application of hydrogen peroxide. The experiment was conducted in greenhouse conditions at the Center of Agrifood Science and Technology of the Federal University of Campina Grande, Pombal, Brazil, using a randomized block design, with a 6 x 4 factorial, corresponding to six combinations of water salinity [S1 – Control (0,3 dS m-1); S2 - Na+; S3 - Ca2+; S4 - Na+ + Ca2+; S5 - Mg2+ and S6 - Na+ + Ca2+ + Mg2+] and four concentrations of hydrogen peroxide - H2O2 (0, 20, 40 and 60 μM), with four repetitions. With the exception of S1, the other treatments were irrigated with water of 3.6 dS m-1. The 40 µM concentration of H2O2 reduced the salt stress effect on leaf area of plants irrigated with water consisting of Na+, Na+ + Ca2+ and Na+ + Ca2+ + Mg2+. The 20 and 40 µM concentrations of H2O2 increased the Dickson quality index of plants irrigated with water consisting of Na+ + Ca2+ + Mg2+.   Keywords: Passiflora edulis f. flavicarpa Degener, salt stress, hydrogen peroxide.

scholarly journals QUALIDADE FÍSICO-QUÍMICA DE FRUTOS DE MARACUJAZEIRO EM FUNÇÃO DAS FORMAS DE PROPAGAÇÃO E POTENCIAIS DE ÁGUA NO SOLO

Irriga ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 273-292
Author(s):  
LUCIO ADERITO DOS ANJOS VEIMROBER JUNIOR ◽  
ALISSON JADAVI PEREIRA DA SILVA ◽  
HANS RAJ GHEYI ◽  
MAIRTON GOMES DA SILVA ◽  
FÁBIO TAYRONE OLIVEIRA DE FREITAS ◽  
...  
Keyword(s):  
Water Potential ◽  
Soil Water Potential ◽  
Titratable Acidity ◽  
Passion Fruit ◽  
Soluble Solids ◽  
Fruit Pulp ◽  
Passiflora Edulis ◽  
Passiflora Edulis Sims ◽  
E Mail

QUALIDADE FÍSICO-QUÍMICA DE FRUTOS DE MARACUJAZEIRO EM FUNÇÃO DAS FORMAS DE PROPAGAÇÃO E POTENCIAIS DE ÁGUA NO SOLO     LÚCIO ADERITO DOS ANJOS VEIMROBER JÚNIOR1; ALISSON JADAVI PEREIRA DA SILVA2; HANS RAJ GHEYI1; MAIRTON GOMES DA SILVA1; FÁBIO TAYRONE OLIVEIRA DE FREITAS1 E MAURÍCIO ANTÔNIO COELHO FILHO3   1 Programa de Pós-Graduação em Engenharia Agrícola, Núcleo de Engenharia de Água e Solo, Universidade Federal do Recôncavo da Bahia, Rua Rui Barbosa, 710 - Campus Universitário, CEP: 44380-000, Cruz das Almas-BA, Brasil. E-mail: [email protected], [email protected], [email protected], [email protected] 2 Instituto Federal de Educação, Ciência e Tecnologia Baiano, Rua Waldemar Mascarenhas, s/n, CEP: 44350-000, Governador Mangabeira-BA, Brasil. E-mail: [email protected] 3 Embrapa Mandioca e Fruticultura, Rua Embrapa, s/n, CEP: 44380-000, Cruz das Almas-BA, Brasil. E-mail: [email protected]     1 RESUMO   No presente estudo foram avaliadas a qualidade físico-química de frutos de maracujazeiro (Passiflora edulis Sims, ‘BRS Gigante Amarelo’) propagado a partir de sementes e estaquia sob diferentes potenciais de água no solo. O experimento foi realizado em casa de vegetação, entre os meses de novembro de 2019 e junho de 2020, na Universidade Federal do Recôncavo da Bahia, Cruz das Almas, BA. O maracujazeiro foi cultivado em lisímetros de drenagem, cada um com área superficial de 1,44 m² e altura de 0,6 m, preenchidos com solo de textura franco-arenosa. Adotou-se o delineamento experimental inteiramente casualizado em esquema fatorial 2 x 4: duas formas de propagação vegetativa (semente e estaquia) e quatro potenciais matriciais de água no solo (-6, -10, -20 e -33 kPa), com quatro repetições. Avaliaram-se as massas frescas do fruto e da polpa, diâmetro e comprimento do fruto, razão comprimento/diâmetro do fruto, rendimento da polpa do fruto, espessura da casca, sólidos solúveis totais, acidez total titulável, razão entre sólidos solúveis totais/acidez total titulável e pH da polpa. As formas de propagação afetaram as principais variáveis da qualidade física dos frutos do maracujazeiro. A qualidade química da polpa dos frutos do maracujazeiro não foi afetada pelos fatores em estudo.   Palavras-chave: Passiflora edulis Sims, manejo da irrigação, reprodução vegetal.     VEIMROBER JÚNIOR, L. A. A.; SILVA, A. J. P.; GHEYI, H. R.; SILVA, M. G.; FREITAS, F. T. O.; COELHO FILHO, M. A. PHYSICAL AND CHEMICAL QUALITY OF PASSION FRUIT UNDER PROPAGATION METHOD AND WATER POTENTIAL IN THE SOIL   2 ABSTRACT In this study, the physicochemical quality of passion fruit (Passiflora edulis Sims, ‘BRS Gigante Amarelo’) propagated from seeds or cuttings and subjected to different soil water potential was evaluated. The experiment was conducted in a greenhouse, between November 2019 and June 2020, at the Federal University of Recôncavo of Bahia, Cruz das Almas, BA. The passion fruit was grown in drainage lysimeters, each one with a surface area of 1.44 m² and 0.6 m high, and filled with sandy loamy soil. The experiment was performed in a completely randomized design in a 2 x 4 factorial scheme: two forms of vegetative propagation (seed or cuttings) and four soil water potential (-6, -10, -20, and -33 kPa), with four replicates. Fruit fresh weight, fresh weight of the fruit pulp, fruit diameter and length, fruit length/diameter ratio, fruit pulp yield, rind thickness, total soluble solids, total titratable acidity, total soluble solids/total titratable acidity ratio and pH of the pulp was evaluated. The forms of propagation affected the main physical quality variables of the fruits of passion fruit. The chemical quality of the passion fruit pulp was not affected by the factors under study.  Keywords: Passiflora edulis Sims, irrigation management, vegetative propagation.

scholarly journals Histological analysis of pollen-pistil interactions in sour passion fruit plants (Passiflora edulis Sims)

BIOCELL ◽  
2012 ◽  
Vol 36 (2) ◽  
pp. 83-90 ◽  
Author(s):  
H蒖IKA CHAGAS MADUREIRA ◽  
TELMA NAIR SANTANA PEREIRA ◽  
MAURA DA CUNHA ◽  
DENISE ESPELLET KLEIN
Keyword(s):  
Histological Analysis ◽  
Passion Fruit ◽  
Passiflora Edulis ◽  
Fruit Plants ◽  
Passiflora Edulis Sims ◽  
Sour Passion Fruit

scholarly journals Number of carpels in the pollination efficiency of sour passion fruit

2019 ◽  
Vol 41 (6) ◽  
Author(s):  
Danilo Akio de Sousa Esashika ◽  
Fábio Gelape Faleiro ◽  
Nilton Tadeu Vilela Junqueira
Keyword(s):  
Passion Fruit ◽  
Pollination Efficiency ◽  
Fruit Breeding ◽  
Breeding Programs ◽  
Passiflora Edulis ◽  
Reproductive Structures ◽  
Different Types ◽  
Natural Pollination ◽  
Passiflora Edulis Sims ◽  
Sour Passion Fruit

Abstract Passion fruit flowers usually have three carpels, but there are individuals with greater amount of carpels in their reproductive structures and little is known about the influence of this characteristic on this crop. Sour passion fruit (Passiflora edulis Sims, ‘BRS Sol do Cerrado’ cultivar) plants presenting flowers with three, four and five carpels were evaluated regarding the following characteristics: manual and natural pollination efficiency; frequency of different types of flowers in the orchard; and inclination of styles. Frequencies of flowers with three, four and five carpels were also evaluated in ‘BRS Sol do Cerrado’ genitors. There were no statistically significant differences in pollination efficiency among the different types of flowers, which presented averages above 90%, especially flowers with five carpels, with 100% efficiency. Flowers with three carpels are predominant in ‘BRS Sol do Cerrado’ cultivar, representing 88.93%, but flowers with four and five carpels did not show styles without inclination, whereas flowers with three carpels presented rate of 11.83%. Only the male genitor stands out for the rate of flowers with four and five carpels, being 37.33% and 7.33%, respectively. Thus, flowers with four and five carpels represent important characteristics for passion fruit breeding programs.

scholarly journals Biological fixation, transfer and balance of nitrogen in passion fruit (Passiflora edulis Sims) orchard intercropped with different green manure crops

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 465-471 ◽  
Author(s):  
Edilândia Farias Dantas ◽  
Ana Dolores Santiago de Freitas ◽  
Maria do Carmo Catanho Pereira de Lyra ◽  
Carolina Etienne de Rosália e Silva Santos ◽  
Stella Jorge de Carvalho Neta ◽  
...  
Keyword(s):  
Cover Crops ◽  
Pigeon Pea ◽  
Passion Fruit ◽  
Biological Fixation ◽  
Mineral Fertilization ◽  
Passiflora Edulis ◽  
Jack Bean ◽  
Positive Balance ◽  
Sunn Hemp ◽  
Passiflora Edulis Sims

Green manures can replace or supplement mineral fertilization and add organic matter to the soils, ensuring greater sustainability to fruit growing in semiarid regions. Biological fixation, transfer and balance of nitrogen were determined on an irrigated yellow passion fruit orchard (Passiflora edulis Sims) intercropped separately with three cover crops: sunn hemp, Crotalaria juncea (L.); pigeon pea, Cajanus cajan (L.) Mill; and jack bean, Canavalia ensiformis (L.) DC. In a fourth treatment, legumes were not planted, but spontaneous vegetation was left to grow freely. The legumes were croped for 90 days in three lines (0.5 m apart) inside the passion fruit plant lines (2.5 m apart). Fixation and transfers were determined by the 15N natural abundance technique, using sunflower as a reference plant. The three planted legumes nodulated abundantly and fixed nitrogen in high proportions (between 50 and 90% of their N), forming symbiosis with bacteria naturally established in the soil. Jack bean produced more biomass than sunn hemp and pigeon pea, and as much as the spontaneous plants, of which 23% were legumes. The amounts of fixed N (150, 43, 30 and 29 kg ha-1) were determined mainly by the biomass of legumes. More than 40% of the N of passion fruit plants came from the biological nitrogen fixation of the intercropped jack bean, which provided an amount of N higher than that exported in the fruits, generating a positive balance of more than 100 kg ha-1. Therefore, it is recommended to intercrop jack bean in irrigated passion fruit orchards.

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