Morphological variability of prickly pear cultivars (Opuntia spp.) established in ex-situ collection in Tunisia

2019 ◽  
Vol 248 ◽  
pp. 163-175 ◽  
Author(s):  
Elhani Amani ◽  
Louati Marwa ◽  
Ben Salem Hichem ◽  
Salhi-Hannachi Amel ◽  
Baraket Ghada
Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 354
Author(s):  
Jaime A. Arboleda Mejia ◽  
Jorge Yáñez-Fernandez

In this study, fresh orange prickly pear juice (Opuntia spp.) was clarified by a cross-flow microfiltration (MF) process on a laboratory scale. The viability of the process—in terms of productivity (permeate flux of 77.80 L/h) and the rejection of selected membranes towards specific compounds—was analyzed. The quality of the clarified juice was also analyzed for total antioxidants (TEAC), betalains content (mg/100 g wet base), turbidity (NTU) and colorimetry parameters (L, a*, b*, Croma and H). The MF process permitted an excellent level of clarification, reducing the suspended solids and turbidity of the fresh juice. In the clarified juice, a decrease in total antioxidants (2.03 TEAC) and betalains content (4.54 mg/100 g wet basis) was observed as compared to the fresh juice. Furthermore, there were significant changes in color properties due to the effects of the L, a*, b*, C and h° values after removal of turbidity of the juice. The turbidity also decreased (from 164.33 to 0.37 NTU).


Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1341
Author(s):  
Giandomenico Corrado ◽  
Marcello Forlani ◽  
Rosa Rao ◽  
Boris Basile

Apricot (Prunus armeniaca L.) is an economically important tree species globally cultivated in temperate areas. Italy has an ample number of traditional varieties, but numerous landraces are abandoned and at risk of extinction because of increasing urbanization, agricultural intensification, and varietal renewal. In this work, we investigated the morphological and genetic diversity present in an ex-situ collection of 28 neglected varieties belonging to the so-called “Vesuvian apricot”. Our aim was to understand the level of diversity and the possible link between the promotion of specific fruit types (e.g., by public policies) and the intraspecific variation in apricot. The combination of five continuous and seven categorical traits allowed us to phenotypically distinguish the varieties; while fruit quality-related attributes displayed high variation, both apricot size and skin colour were more uniform. The twelve fluorescent-based Simple Sequence Repeats (SSRs) markers identified cultivar-specific molecular profiles and revealed a high molecular diversity, which poorly correlated with that described by the morphological analysis. Our results highlighted the complementary information provided by the two sets of descriptors and that DNA markers are necessary to separate morphologically related apricot landraces. The observed morphological and genetic differences suggest a loss of diversity influenced by maintenance breeding of specific pomological traits (e.g., skin colour and size). Finally, our study provided evidence to recommend complementary strategies to avoid the loss of diversity in apricot. Actions should pivot on both the promotion of easily identified premium products and more inclusive biodiversity-centred on-farm strategies.


2002 ◽  
pp. 347-353
Author(s):  
M.M. Murillo ◽  
J.M. Fuentes ◽  
F. Borrego ◽  
A. Flores Uruza ◽  
H. Díaz ◽  
...  

2016 ◽  
Vol 12 (1) ◽  
pp. 16 ◽  
Author(s):  
Amik Krismawati ◽  
M. Sabran

<p>Central Kalimantan Province covers an area of 15,38 million ha which consist of 61,140 ha coastal region, 1,53 million ha open waters, and 13,79 million ha as inland area. The continental area consisted of various type of lands e.g. acid sulphate, peats soil, and up land. In order to explore and conserve potential medicinal plants indigenous to Central Kalimantan, these exploration and characterization activities were conducted. Method of study: (1) exploration, (2) ex situ conservation, (3) characterization, and (4) documentation. The result of these activities are ex situ collection of 15 acessions of medicinal crops. This exploration obtained 15 accessions of medicinal plants which were characterized and conserved in ex situ condition.</p><p> </p><p><strong>Abstrak</strong></p><p>Kalimantan Tengah memiliki luas wilayah 15,38 juta ha yang terdiri dari 61,1 ribu ha daerah pantai, 1,53 juta ha daerah perairan umum, dan 17,79 juta ha daratan. Wilayah daratan yang luas ini terdiri atas berbagai tipologi lahan seperti lahan sulfat masam, gambut, dan lahan kering. Untuk menggali potensi dan melestarikan plasma nutfah tanaman obat spesifik Kalimantan Tengah telah dilaksanakan kegiatan eksplorasi dan karakterisasi. Dari kegiatan ini dapat disusun deskripsi berbagai jenis tanaman tersebut untuk inventarisasi, karakterisasi, dan koleksi tanaman obat secara ex situ dalam bentuk kebun pembibitan. Metode kegiatan meliputi (1) eksplorasi, (2) konservasi ex situ, (3) karakterisasi, dan (4) dokumentasi. Hasil kegiatan adalah koleksi secara ex situ tanaman obat sebanyak 15 aksesi.</p>


2013 ◽  
pp. 313-317 ◽  
Author(s):  
J. Fuentes-Rodriguez ◽  
A. Abrego-Garcia ◽  
F. Ruiz-Zarate ◽  
G. Montero-Almora ◽  
M. Torres Hernandez ◽  
...  

2018 ◽  
Vol 11 (3) ◽  
pp. 1181-1189 ◽  
Author(s):  
Evelyn Regalado-Rentería ◽  
Juan Rogelio Aguirre-Rivera ◽  
Marco Martín González-Chávez ◽  
Roberto Sánchez-Sánchez ◽  
Fidel Martínez-Gutiérrez ◽  
...  

2000 ◽  
Vol 82 (4) ◽  
pp. 812-827 ◽  
Author(s):  
Douglas Gollin ◽  
Melinda Smale ◽  
Bent Skovmand

2019 ◽  
Vol 113 (1) ◽  
pp. 163
Author(s):  
Doriana Bode XHULAJ ◽  
Fetah ELEZI ◽  
Valbona HOBDARI

The object of the study was the evaluation of the morphological variability of 92 wheat germplasm (<em>Triticum aestivum</em> L.) part of <em>ex situ</em> collection of Plant Genetic Resources Institute, Agricultural University of Tirana. Principal components and cluster analysis were carried out involving 8 quantitative traits, such as tiller capacity, plant height, spike length, number of spikelet per spike, number of seeds per spikelet, number of seeds per spike, seed size and of seeds per spike. Plant height showed positive significant correlation with yield contributing traits as spike length (r = 0.560) and the number of spikelet’s per spike (r = 0.305). The number of grains per spike had a significant positive relationship with the mass of grains per spike. Three principal components exhibited about 66.42 % of variability where two PCs components influenced mostly the variability (PC1 with 28.1 % and PC2 with 24.43 %). Accessions were grouped into three major clusters based on complete linkage, suggesting for a variance at the level of 27.50 % within a class and 72.50 % between classes. The results suggested that plant height, spike length, number of spikelet per spike were the most important characters in differentiating the genotypes.


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