oalib
Search Results: 1 - 10 of 100 matches for " "
All listed articles are free for downloading (OA Articles)
Page 1 /100
Display every page Item
Fruit Setting Behaviour of Passion Fruit  [PDF]
Mira Rani Das, Tofazzal Hossain, M. A. Baset Mia, J. U. Ahmed, A. J. M. Sirajul Kariman, M. Mofazzal Hossain
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.45132
Abstract:

Passion fruit has great prospective to fascinate fruit consumer for its taste and delicious fruit juice and improvement of the economic condition of the fruit grower in the developing countries. The self-incompatibility in the passion fruits is an imperative reason to be considered regarding fruit production. Pollination is an essential for self-sterile crops as passion fruit (Passiflora edulis Sims.). The experiment was conducted in the field and laboratories of the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur, Bangladesh to investigate the fruit setting behavior of passion fruits at during five flashes. We estimated to study fruit setting behavior of passion fruit at different flashes and determine effective pollination method and suitable flashes among five flashes. Result revealed that percent of fruit set of passion fruit was recorded highest; Seeds per plant were recorded highest in third flash when flowers were pollinated by hand compared with self-, and natural pollinations. Length-breadth ratios of fruits in third flashes were recorded higher when pollinates by hand. Individual fruit weight was also recorded higher at third flash. Plants required minimum days from flower anthesis to full maturity during third flash. On the other hand, fruit growth behavior of hand pollinated flowers was recorded higher during third flash of passion fruit. Results indicated that all studied characteristics of fruit and seed of passion fruit of third flash performed best.

Leaf Disc Regeneration of Passion Fruit
NO Amugune, HNB Gopalan, B Bytebier
African Crop Science Journal , 1993,
Abstract: A leaf disc regeneration system was developed for passion fruit, Passiflora edulis Sims. Leaf discs were cultured on a modified MS medium containing 8.90 μM BAP or on 8.90 μM BAP and 2.32 μM KIN. Shoots appeared within four weeks. These could be rooted when transferred to the same medium containing 0.54, 2.69 and 5.37 μM NAA. Leaf discs cultured on medium supplemented with 11.42 μM IAA, 10.74 μM NAA and 1.86 μM KIN formed callus only. Those cultured on medium supplemented with 10.74 μM NAA and 2.32 μM KIN formed callus and roots.
Production and Preservation of Passion Fruit Juice  [cached]
U. G. AKPAN,A. S. KOVO
Leonardo Journal of Sciences , 2005,
Abstract: Production and preservation of Passion Fruit Juice was examined to reduce the spoilage and to increase the shelf life of the juice using chemical preservatives. The preservation of the juice was carried out using sugar, benzoic acid, citric and a combination of citric and benzoic acid under room temperature.The result revealed that the juice maintained its color, aroma and tastes for at least one month when 30% benzoic acid was used as preservative. This happens to be the best among all. The juice under other preservation like 4% sugar went bad after three days, while that of 4% citric acid maintained its qualities for one week and some days, but thereafter the aroma started to fade. The combination of 3% benzoic acid and 4% citric acid maintained the qualities of the juice fairly between two to three weeks. The alcoholic content was also estimated and it was discovered that the juice containing citric acid and sugar has the highest percentage of alcohol. The preservation used also altered the pH so that it is impossible for pathogens to exist at such a low pH environment.
Water salinity and initial development of yellow passion fruit
Soares, Frederico Ant?nio Loureiro;Gheyi, Hans Raj;Viana, Sergio Batista Assis;Uyeda, Claudio Augusto;Fernandes, Pedro Dantas;
Scientia Agricola , 2002, DOI: 10.1590/S0103-90162002000300013
Abstract: considering the lack of information on salt tolerance of passion fruit (passiflora edulis) seedlings, a study was carried out to evaluate the effects of water salinity on the vigor and initial growth in a completely randomized design with 8 levels of electrical conductivity of irrigation water (ecw), varying from 1.0 to 8.0 ds m-1. salinity delayed the germination process, but relative reduction was observed only above ecw 4.43 ds m-1. seedling vigor and growth decreased with increasing salinity, however, water at 4 ds m-1 resulted in 85% of vigor and seedlings with more than 50% growth in comparison to the lowest salinity treatment. based on soil salinity, the passion fruit may be considered as 'moderately tolerant' to salinity during the initial phase.
Water salinity and initial development of yellow passion fruit  [cached]
Soares Frederico Ant?nio Loureiro,Gheyi Hans Raj,Viana Sergio Batista Assis,Uyeda Claudio Augusto
Scientia Agricola , 2002,
Abstract: Considering the lack of information on salt tolerance of passion fruit (Passiflora edulis) seedlings, a study was carried out to evaluate the effects of water salinity on the vigor and initial growth in a completely randomized design with 8 levels of electrical conductivity of irrigation water (ECw), varying from 1.0 to 8.0 dS m-1. Salinity delayed the germination process, but relative reduction was observed only above ECw 4.43 dS m-1. Seedling vigor and growth decreased with increasing salinity, however, water at 4 dS m-1 resulted in 85% of vigor and seedlings with more than 50% growth in comparison to the lowest salinity treatment. Based on soil salinity, the passion fruit may be considered as 'moderately tolerant' to salinity during the initial phase.
Simultaneous selection in progenies of yellow passion fruit using selection indices
Rosado, Luciana Domiciano Silva;Santos, Carlos Eduardo Magalh?es dos;Bruckner, Claudio Horst;Nunes, Endson Santana;Cruz, Cosme Dami?o;
Revista Ceres , 2012, DOI: 10.1590/S0034-737X2012000100014
Abstract: this study aimed to evaluate the efficiency of simultaneous selection (selection indices) using estimated genetic gains in yellow passion fruit and to make a comparison between the methodologies of mulamba & mock and elston. the study was conducted with 26 sib progenies of yellow passion fruit for intrinsic production characteristics including fruit number, fruit mass, fruit length and diameter, and for the fruit characteristics skin thickness, soluble solids and acidity. two methodologies were applied: first, in the joint analysis of fruit characteristics and of intrinsic production characteristics in a single phase of selection; and second, in the analysis in two phases, in which priority was given to the intrinsic production characteristics in the first phase, and later, in the second phase, the best fruit characteristics were chosen among the progenies of the first phase. the analysis of variance was applied to the data to detect genetic variability among progenies. the elston's selection indice was unable to provide distribution of genetic gains consistent with the purposes of the study, as it selected a single progeny of passion fruit. however, the index based on the sum of ranks of mulamba & mock was more suitable, as it provided a balanced distribution of gains, selecting a larger number of progenies. the methodology of selection using indices is advantageous in passion fruit, since it contributes to higher genetic gains for all the traits evaluated, and the selection in a single phase was proved efficient for progeny selection.
Growth and Mineral Composition of Passion Fruit Seedlings
Robson Pontes de Freitas Albuquerque,Walter Esfrain Pereira,Raunira da Costa Araújo,Edson Batista Lopes
Engenharia Ambiental : Pesquisa e Tecnologia , 2010,
Abstract: The aim of this study was to evaluate the growth and mineral composition of the yellow passion fruit plant seedlings (Passiflora edulis Sims f. flavicarpa Degener) in fertilized substrates with boron and kalium, with and without coconut fiber (25 % e 0%) and bovine manure (15%). The treatments were distributed in a outlined random block with four blocks and four seedlings per portion being five kalium doses and five boron doses combined according to the main Composite Central of Box. Each 20 days were done evaluations. Were analyzed the dry and green matter of the root and the leaf, foliated area and nutriment contents of the leaf. The results were submitted to analysis of change and regression. There was no significant effect of the treatments on the seedling's height, diameter of the shaft, number of leaves and foliated area. The coconut fiber doesn’t affect their growth and mineral composition. The kalium increased in a lineal way the root growth and aerial part of the seedlings, either the foliar contents of kalium, but reduce magnesium proportions. The boron increased the foliar contents of boron and reduced the nitrogen’s.
Chemical and physicochemical characteristics changes during passion fruit juice processing
Fernandes, Aline Gurgel;Santos, Gerusa Matias dos;Silva, Daniele Sales da;Sousa, Paulo Henrique Machado de;Maia, Geraldo Arraes;Figueiredo, Raimundo Wilane de;
Ciência e Tecnologia de Alimentos , 2011, DOI: 10.1590/S0101-20612011000300030
Abstract: passion fruit is widely consumed due to its pleasant flavour and aroma acidity, and it is considered very important a source of minerals and vitamins. it is used in many products such as ice-cream, mousses and, especially, juices. however, the processing of passion fruit juice may modify the composition and biodisponibility of the bioactive compounds. investigations of the effects of processing on nutritional components in tropical juices are scarce. frequently, only losses of vitamin c are evaluated. the objective of this paper is to investigate how some operations of passion fruit juice processing (formulation/homogeneization/thermal treatment) affect this product's chemical and physicochemical characteristics. the results showed that the chemical and physicochemical characteristics are little affected by the processing although a reduction in vitamin c contents and anthocyanin, large quantities of carotenoids was verified even after the pasteurization stage.
Arbuscular mycorrhizal fungi and the occurrence of flavonoids in roots of passion fruit seedlings
Soares, Ana Cristina Fermino;Martins, Marco Ant?nio;Mathias, Lêda;Freitas, Marta Simone Mendon?a;
Scientia Agricola , 2005, DOI: 10.1590/S0103-90162005000400005
Abstract: composition and the role of root flavonoids in the regulation of mycorrhizal symbiosis are still poorly understood. several flavonoids stimulate spore germination, mycelia growth and root colonization by arbuscular mycorrhizal fungi (amf), and both root colonization and flavonoid composition are affected by plant nutritional status. effects of amf on the occurrence and content of aromatic secondary metabolites in the roots of passion fruit seedlings grown under two levels of phosphorus (p) fertilization (10 and 50 mg kg-1 of phosphorus) was studied. seedlings were inoculated with glomus clarum and a population of native fungi from a passion fruit plantation. methanolic extracts of passion fruit seedlings roots were analyzed by high performance liquid chromatography (hplc). it was recorded the occurrence of several compounds, possibly flavonoids, with seven major peaks. the root contents of the compound with a retention time of 4.5 minutes, varied in response to the root colonization by different mycorrhizal fungi, and the contents of two compounds with retention times of 3.4 and 18.9 minutes varied due to the poor plant growth and nutritional status. passion fruit seedlings have several aromatic compounds, and their contents were correlated with root colonization by different mycorrhizal fungi, the reduced seedling growth due to nutritional stress, and/or the plant defense responses to the fungi.
Waxes and plastic film in relation to the shelf life of yellow passion fruit
Mota, Wagner Ferreira da;Salom?o, Luiz Carlos Chamhum;Cecon, Paulo Roberto;Finger, Fernando Luiz;
Scientia Agricola , 2003, DOI: 10.1590/S0103-90162003000100008
Abstract: the high perishability of the yellow passion fruit (passiflora edulis f. flavicarpa) reduces its postharvest conservation and availability, mainly for in natura consumption. these losses of quality and commercial value occur due to the high respiration and loss of water. this work aimed to evaluate the influence of a modified atmosphere - wax emulsions and plastic film - on the shelf life of the yellow passion fruit. plastic film (cryovac d-955, 15 mm thickness) reduced fresh weight loss and fruit wilting, kept higher fruit and rind weight and higher pulp osmotic potential over the storage period. however, it was not efficient in the control of rottenness. sparcitrus wax (22-23% polyethylene/maleyc resin) caused injury to the fruit, high fruit weight losses and wilting and resulted in lower pulp osmotic potential; this wax lead to a higher concentration of acid and a lower relation of soluble solids/acidity. among the tested waxes, fruit wax (18-21% carnauba wax) was the best, promoting reduced weight loss, wilting and rottenness.
Page 1 /100
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.