Fruit maturity stage and provenance affect seed germination of Passiflora mollissima (banana passion fruit) and P. ligularis (sweet granadilla), two commercially valuable tropical fruit species

2017 ◽  
Vol 45 (2) ◽  
pp. 383-397 ◽  
Author(s):  
A. Salazar ◽  
C. Ramírez
Keyword(s):  
Seed Germination ◽  
Passion Fruit ◽  
Maturity Stage ◽  
Tropical Fruit ◽  
Fruit Species ◽  
Fruit Maturity

scholarly journals Genetic Diversity of Purple Passion Fruit, Passiflora edulis f. edulis, Based on Single-Nucleotide Polymorphism Markers Discovered through Genotyping by Sequencing

Diversity ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 144
Author(s):  
Nohra Castillo Rodríguez ◽  
Xingbo Wu ◽  
María Isabel Chacón ◽  
Luz Marina Melgarejo ◽  
Matthew Wohlgemuth Blair
Keyword(s):  
Genetic Diversity ◽  
Single Nucleotide Polymorphism ◽  
Genotyping By Sequencing ◽  
Passion Fruit ◽  
Nucleotide Polymorphism ◽  
Single Nucleotide ◽  
Passiflora Edulis ◽  
Tropical Fruit ◽  
Commercial Cultivars ◽  
Purple Passion Fruit

Orphan crops, which include many of the tropical fruit species used in the juice industry, lack genomic resources and breeding efforts. Typical of this dilemma is the lack of commercial cultivars of purple passion fruit, Passiflora edulis f. edulis, and of information on the genetic resources of its substantial semiwild gene pool. In this study, we develop single-nucleotide polymorphism (SNP) markers for the species and show that the genetic diversity of this fruit crop has been reduced because of selection for cultivated genotypes compared to the semiwild landraces in its center of diversity. A specific objective of the present study was to determine the genetic diversity of cultivars, genebank accession, and landraces through genotyping by sequencing (GBS) and to conduct molecular evaluation of a broad collection for the species P. edulis from a source country, Colombia. We included control genotypes of yellow passion fruit, P. edulis f. flavicarpa. The goal was to evaluate differences between fruit types and compare landraces and genebank accessions from in situ accessions collected from farmers. In total, 3820 SNPs were identified as informative for this diversity study. However, the majority distinguished yellow and purple passion fruit, with 966 SNPs useful in purple passion fruits alone. In the population structure analysis, purple passion fruits were very distinct from the yellow ones. The results for purple passion fruits alone showed reduced diversity for the commercial cultivars while highlighting the higher diversity found among landraces from wild or semi-wild conditions. These landraces had higher heterozygosity, polymorphism, and overall genetic diversity. The implications for genetics and breeding as well as evolution and ecology of purple passion fruits based on the extant landrace diversity are discussed with consideration of manual or pollinator-assisted hybridization of this species.

scholarly journals Ripening of "Pedro Sato" guava: study on its climacteric or non-climacteric nature

2005 ◽  
Vol 17 (3) ◽  
pp. 299-306 ◽  
Author(s):  
Marisa Azzolini ◽  
Angelo Pedro Jacomino ◽  
Ilana Urbano Bron ◽  
Ricardo Alfredo Kluge ◽  
Marlene Aparecida Schiavinato
Keyword(s):  
Respiratory Rate ◽  
Ethylene Production ◽  
Room Temperature ◽  
Psidium Guajava ◽  
Maturity Stage ◽  
Physiological Basis ◽  
Tropical Fruit ◽  
Maturity Stages ◽  
Climacteric Fruit ◽  
Light Green

Guava (Psidium guajava L.) is a tropical fruit exhibiting rapid post-harvest ripening. However, the physiological basis involved in the ripening process of guava is not totally clear, which makes it difficult to develop technologies to enhance fruit storability. Two experiments were carried out with the objective of determining the ripening behavior of 'Pedro Sato' guavas. In the first experiment, guava fruits at three maturity stages (I - dark green, II - light green and III - yellow-green) were stored at room temperature (23 ± 1°C and 85 ± 5 % RH). The respiratory rate, ethylene production, pulp and skin colours, and firmness were evaluated. In the second experiment, ethylene and 1-methylcyclopropene (1-MCP) were applied to guavas at the light green maturity stage and the ripening behaviour during storage at room temperature was studied. Fruits from all maturity stages showed a gradual increase in the respiratory rate and ethylene production. The intense changes in pulp and skin colours and in firmness preceded the maximum respiratory rate and ethylene production. 1-MCP reduced the rate of ripening, while the application of ethylene did not promote this process. These results do not permit the classification of 'Pedro Sato' guava as a traditional climacteric fruit.

scholarly journals Effect of Saline Water Irrigation at Fruit Maturity Stage on Transpiration Rate and Growth in Sweet Pepper (Capsicum annuum)

10.5109/24304 ◽  
1999 ◽  
Vol 44 (1/2) ◽  
pp. 39-47
Author(s):  
Osamu Hirota ◽  
Eduardo Villavicencio ◽  
Jiro Chikushi ◽  
Shinichi Takeuchi ◽  
Yoshisuke Nakano
Keyword(s):  
Capsicum Annuum ◽  
Transpiration Rate ◽  
Saline Water ◽  
Sweet Pepper ◽  
Maturity Stage ◽  
Saline Water Irrigation ◽  
Fruit Maturity

scholarly journals Post-harvest quality of Campomanesia adamantium (Cambess.) O. Berg. in function of storage temperature

2020 ◽  
Vol 43 ◽  
pp. e48979
Author(s):  
Marília Assis do Santos ◽  
Alan Carlos Costa ◽  
Clarice Aparecida Megguer ◽  
Júlien da Silva Lima ◽  
Yasmin Giovanna Santos Carvalho ◽  
...  
Keyword(s):  
Visual Analysis ◽  
Storage Temperature ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Post Harvest ◽  
Fruit Species ◽  
Randomized Design ◽  
Soluble Solid

Brazil has a large variety of native and exotic fruit species, including the gabiroba, which can be sources of income for the population. The objective of this study was to evaluate the post-harvest behavior of gabiroba fruit by maturity stage and storage temperature. The fruits were divided into two lots and stored at temperatures of 6, 12, 24 and 30°C. The first batch was used for the physical and chemical analysis of acidity, soluble solids, firmness, percentage of green color, and visual analysis; this batch was composed of green and yellow-green fruit. The second lot was intended for breath analysis, composed of green, yellow-green, and yellow fruits. The experiment was conducted in a completely randomized design with five replications. Data were analyzed using descriptive statistics. Considering the evaluated characteristics, the gabiroba soluble solid/titratable acidity ratio values should be approximately 4.0 for the fruits to be considered acceptable for consumption. For the preservation of the post-harvest quality of gabiroba, it is indicated that the harvest is carried out at the green stage of maturation and that they are stored at a temperature of 6°C. The highest respiratory rates were observed in fruits harvested at the yellow stage, not being recommended its storage.

scholarly journals Agronomic descriptors and ornamental potential of passion fruit species

2017 ◽  
Vol 23 (3) ◽  
pp. 357
Author(s):  
Daiane Da Silva Nóbrega ◽  
José Ricardo Peixoto ◽  
Michelle Souza Vilela ◽  
Fábio Gelape Faleiro ◽  
Karolline De Paula Silva Gomes ◽  
...  
Keyword(s):  
Block Design ◽  
Digital Camera ◽  
Passion Fruit ◽  
Fruit Breeding ◽  
Fruit Species ◽  
Morphological Aspects ◽  
Randomized Block Design ◽  
Distrito Federal ◽  
The University ◽  
Two Hybrid

Brazil has great variability, being one of the centers of origin of the genus Passiflora. Passion fruit has a multiple and diversified uses, being little explored as an ornamental plant in the country. The objective of this work was to characterize four passion fruit genotypes (two hybrid materials from the experimental field of passion fruit breeding program of the University of Brasília, and two passion fruit cultivars - BRS Sertão Forte and BRS Mel do Cerrado, both of them from Brazil), based on official and validated morphoagronomic descriptors for the identification of morphological aspects and ornamental potential, under field conditions, in the Distrito Federal, Brazil. The experiment consisted of a randomized block design, with four treatments, four replications, and six plants per plot. Plants were analyzed weekly regarding the characteristics of the branches, leaf blade, petiole, and flowers, with 24 measurements of each structure in the four treatments, which were recorded using a digital camera. Flowers presented pronounced size and color, colored branches, and leaves of varying sizes and shapes. All materials studied showed commercial ornamental potential to be explored as new options for ornamental climbing plants. 

scholarly journals Resource use and GHG emissions of eight tropical fruit species cultivated in Colombia

Fruits ◽  
2013 ◽  
Vol 68 (4) ◽  
pp. 303-314 ◽  
Author(s):  
Sophie Graefe ◽  
Jeimar Tapasco ◽  
Alonso Gonzalez
Keyword(s):  
Resource Use ◽  
Ghg Emissions ◽  
Tropical Fruit ◽  
Fruit Species

The influence of lulo (Solanum quitoense Lam) fruit maturity stage on polygalacturonase and pectate lyase secretion by Colletotrichum acutatum

2018 ◽  
Vol 43 (3) ◽  
pp. 218-229 ◽  
Author(s):  
Ana Patricia Martínez-González ◽  
Blanca Ligia Higuera-Mancipe ◽  
Sixta Tulia Martínez-Peralta
Keyword(s):  
Pectate Lyase ◽  
Colletotrichum Acutatum ◽  
Maturity Stage ◽  
Fruit Maturity

Biochemical composition as a function of fruit maturity stage of bell pepper (Capsicum annum) inoculated with Bacillus amyloliquefaciens

2020 ◽  
Vol 263 ◽  
pp. 109107 ◽  
Author(s):  
Jonathan Cisternas-Jamet ◽  
Ricardo Salvatierra-Martínez ◽  
Antonio Vega-Gálvez ◽  
Alexandra Stoll ◽  
Elsa Uribe ◽  
...  
Keyword(s):  
Biochemical Composition ◽  
Bacillus Amyloliquefaciens ◽  
Bell Pepper ◽  
Maturity Stage ◽  
Capsicum Annum ◽  
Fruit Maturity

scholarly journals Cryopreservation of Vasconcellea quercifolia St.-Hil (Caricaceae) Zygotic Embryos

2018 ◽  
Vol 47 (1) ◽  
pp. 63-69
Author(s):  
Cibele M. GALLO ◽  
Renato PAIVA ◽  
Rodrigo T. FREITAS ◽  
Michele V. REIS ◽  
Diogo P.C. SILVA ◽  
...  
Keyword(s):  
Silica Gel ◽  
Growth Analysis ◽  
Seedling Development ◽  
Zygotic Embryos ◽  
Ms Medium ◽  
Papaya Ringspot Virus ◽  
Breeding Programs ◽  
Tropical Fruit ◽  
Fruit Species ◽  
Growth Room

Vasconcellea quercifolia A. St.-Hil. (Caricaceae) is a tropical fruit species native to Brazil, with a great importance in plant breeding programs. The V. quercifolia has a resistance to the main diseases of Caricaceae, Papaya Ringspot Virus (PRSV). Considering its potential, cryopreservation becomes a tool for the conservation of this species. The objective of this paper was to study the cryopreservation of V. quercifolia zygotic embryos through dehydration in silica gel. Excised zygotic embryos were dehydrated in silica at 0, 20, 40, 80 and 100 minutes and then inoculated in MS medium. The percentage of germinated and recovered embryos, and growth analysis were evaluated, besides water content. Subsequently, they were acclimatized in a growth room with temperature controlled. For cryopreservation, the embryos were excised and dehydrated in silica for 0, 20, 40 and 60 minutes, immersed in Liquid Nitrogen (LN) for 1 hour, thawed in Recovery Solution (RS) and inoculated in MS medium. After 30 days, the percentage of germinated and recovered embryos was evaluated. The silica gel promotes a fast dehydrate of embryos. The results showed that embryo dehydration affected seedling development, and dehydration for over 20 minutes showed a reduction in all evaluated parameters. The plantlets regenerated from embryos dehydrate survive the acclimatization. It was possible to cryopreserve the V. quercifolia zygotic embryos when the dehydration time of 20 minutes by silica gel was used.

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