scholarly journals Characterization of fruits of varieties of mango (Mangifera indica) conserved in Peru

2021 ◽  
Vol 43 (2) ◽  
Author(s):  
Lady Laura Tuisima Coral ◽  
Hector Alonso Escobar-Garcia

Abstract The department of Piura is the main mango producer in Peru accounting for 66.7% of the national crop. The objective of the study was to characterize the fruits of forty varieties of mango preserved since 1969 in northwestern Peru. The fruits were harvested at the El Chira Agrarian Experimental Station, Department of Piura from December 2019 to January 2020. Thirteen quantitative fruit variables were evaluated: width, thickness, length, weight, seed width, seed thickness, seed length, percentage of seed, percentage of fresh skin, percentage of pulp, texture, °Brix, and pulp / seed ratios. The varieties with the highest percentage of pulp were Tommy Atkins, Haden x carabao 1, Irwin, and Jaffra, the latter was also the variety with the highest pulp / seed ratio (17.0). The varieties with the highest ° Brix were Blacman (21.3 ° Brix) and Julie (22.0 ° Brix). Knowledge of the fruit characteristics is essential for proper selection and use by the industry, especially those with a higher pulp weight to obtaining higher yields in processing.

Author(s):  
A.F. Bukharov ◽  
D.N. Baleev ◽  
E.V. Kashnova ◽  
G.V. Kasaeva ◽  
M.I. Ivanova ◽  
...  

Цель исследований: изучение влияния сортового и экологического факторов на изменчивость морфометрических (длина семени, эндосперма и зародыша) параметров семян моркови в системе двухфакторного опыта. Объекты для изучения – оригинальные семена сортов Шантенэ 2461 и Боярыня. Опыты были заложены в 2015–2017 годах на Западно-Сибирской овощной опытной станции ФГБНУ ВНИИО в южной части Первомайского района Алтайского края. Преобладающие почвы – черноземы выщелоченные и обыкновенные. Повторность опыта трехкратная, в каждой повторности не менее 20 семян. Измерение длины семени и эндосперма проводили штангенциркулем (ГОСТ 166-89), длину зародыша определяли с использованием микроскопа Микромед и видеоокуляра DCM 300 MD. Семена замачивали в 14%-ном водном растворе гипохлорита натрия в течение 1 ч, после чего измеряли длину семени, эндосперма и зародыша и рассчитывали соотношение длины зародыша (E) к длине эндосперма (S). Семена двух сортов моркови, за годы исследования существенно различались по длине семян (Р < 0,001). Длина эндосперма сорта Боярыня в среднем за годы исследований была меньше (Р < 0,001) по сравнению с Шантенэ 2461. Длина зародыша также существенно отличалась (Р < 0,001) в зависимости от сорта. Экологический фактор значительно влиял на длину семени (Р=0,005) и эндосперма (Р=0,003). На длину зародыша основное влияние оказывал фактор сорта (Р < 0,001). На отношение длины зародыша к длине эндосперма также в значительной степени влиял фактор сорта (Р = 0,006). Исследования показали, что изменчивость морфометрических параметров семян обусловлена как влиянием сорта, так и влиянием условий года репродукции. Длина зародыша по сравнению с другими элементами семени варьирует сильнее и в большей степени зависит от влияния наследственного фактора. Это позволяет сделать вывод о возможности селекционного изменения линейных, а также относительных размеров морфологических элементов семени.The article is devoted to the study of the effect of varietal and environmental factors on the variability of morphometric (seed length, endosperm and germ) parameters of carrot seeds. The objects for the study were the original seeds of different varieties grown in 2015, 2016 and 2017. Seeds obtained from two varieties of carrots over the years of research differed significantly in the length of the seeds (P <0.001). The length of the endosperm varieties Boyarynya on average over the years of research was less (P <0.001) compared with Shantane 2461. The experiments were conducted in 2015-2017 at the West Siberian Vegetable Experimental Station in the southern part of the Pervomaisky district of the Altai region. The prevailing soils are leached and ordinary chernozems. Experiment replication is 3, each repeatability consists at least 20 seeds. The measurement of the length of the seed and the endosperm was carried out with Vernier caliper (GOST 166-89), the length of the embryo was determined using microscope Mikromed and video-ocular DCM 300 MD. Seeds were soaked in 14% aqueous sodium hypochlorite solution for 1 h, and then measured the length of the seed, the endosperm and the embryo, and calculated the ratio of the length of the embryo (E) to the length of the endosperm (S). Embryo length was also significantly different (P <0.001) depending on the variety. The environmental factor had a significant impact on the length of the seed (P = 0.005) and endosperm (P = 0.003). The length of the embryo was mainly affected by the factor of the variety (P <0.001). The ratio of the embryo length to the endosperm length was largely influenced by the factor of the variety (P = 0.006). Our studies have shown that the variability of the morphometric parameters of seeds is due to both the influence of the variety and the conditions of the year of reproduction. In comparison with other elements of the seed, the embryo length varies more and depends more on the influence of the hereditary factor. This allows us to conclude about the possibility of a selection change in linear as well as relative sizes of the morphological elements of the seed.


Genes ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 439
Author(s):  
Avinash Chandra Rai ◽  
Eyal Halon ◽  
Hanita Zemach ◽  
Tali Zviran ◽  
Isaac Sisai ◽  
...  

In mango (Mangifera indica L.), fruitlet abscission limits productivity. The INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) peptide acts as a key component controlling abscission events in Arabidopsis. IDA-like peptides may assume similar roles in fruit trees. In this study, we isolated two mango IDA-like encoding-genes, MiIDA1 and MiIDA2. We used mango fruitlet-bearing explants and fruitlet-bearing trees, in which fruitlets abscission was induced using ethephon. We monitored the expression profiles of the two MiIDA-like genes in control and treated fruitlet abscission zones (AZs). In both systems, qRT-PCR showed that, within 24 h, both MiIDA-like genes were induced by ethephon, and that changes in their expression profiles were associated with upregulation of different ethylene signaling-related and cell-wall modifying genes. Furthermore, ectopic expression of both genes in Arabidopsis promoted floral-organ abscission, and was accompanied by an early increase in the cytosolic pH of floral AZ cells—a phenomenon known to be linked with abscission, and by activation of cell separation in vestigial AZs. Finally, overexpression of both genes in an Atida mutant restored its abscission ability. Our results suggest roles for MiIDA1 and MiIDA2 in affecting mango fruitlet abscission. Based on our results, we propose new possible modes of action for IDA-like proteins in regulating organ abscission.


Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2876 ◽  
Author(s):  
Lin Tan ◽  
Mei Wang ◽  
Youfa Kang ◽  
Farrukh Azeem ◽  
Zhaoxi Zhou ◽  
...  

Mango (Mangifera indica L.) is abundant in proanthocyanidins (PAs) that are important for human health and plant response to abiotic stresses. However, the molecular mechanisms involved in PA biosynthesis still need to be elucidated. Anthocyanidin reductase (ANR) catalyzes a key step in PA biosynthesis. In this study, three ANR cDNAs (MiANR1-1,1-2,1-3) were isolated from mango, and expressed in Escherichia coli. In vitro enzyme assay showed MiANR proteins convert cyanidin to their corresponding flavan-3-ols, such as (−)-catechin and (−)-epicatechin. Despite high amino acid similarity, the recombinant ANR proteins exhibited differences in enzyme kinetics and cosubstrate preference. MiANR1-2 and MiANR1-3 have the same optimum pH of 4.0 in citrate buffer, while the optimum pH for MiANR1-1 is pH 3.0 in phosphate buffer. MiANR1-1 does not use either NADPH or NADH as co-substrate while MiANR1-2/1-3 use only NADPH as co-substrate. MiANR1-2 has the highest Km and Vmax for cyanidin, followed by MiANR1-3 and MiANR1-1. The overexpression of MiANRs in ban mutant reconstructed the biosynthetic pathway of PAs in the seed coat. These data demonstrate MiANRs can form the ANR pathway, leading to the formation of two types of isomeric flavan-3-ols and PAs in mango.


2017 ◽  
Vol 42 (6) ◽  
Author(s):  
Raksmont Ubonbal ◽  
Saijai Porsoongnoen ◽  
Jureerut Daduang ◽  
Sompong Klaynongsruang ◽  
Sakda Daduang

AbstractIntroduction:The tropical plant amylases involved in the fruit ripening stage is outstanding for their high activities in converting starch to sugars within a short period at high temperatures over 40°C.Methods:The α amylase iso-enzymes from Ok-Rong mango (Results:The enzyme was purified 105-fold with a final specific activity of 59.27 U mgConclusion:Two α amylase iso-enzymes were classified as members of the low-pI group of amylases with identical structure, properties and functions. They are mesophilic with high possibilities for application for many purposes.


2016 ◽  
Vol 44 (1) ◽  
pp. 72-76 ◽  
Author(s):  
Hasan PINAR ◽  
Suat KAYMAK ◽  
Serif OZONGUN ◽  
Aydın UZUN ◽  
Mustafa UNLU ◽  
...  

Quince (Cydonia oblonga Mill.) belongs to the Rosaceae family is native to south-eastern Europa and Asia Minor. It is generally used for table consumption and processed into jam, jelly and marmalade. It is also used as dwarfing rootstock for pear cultivars. In the present study, fruit characteristics and genetic diversity of 17 quince cultivars from Turkey were investigated. For fruit characteristics, 'Bardacik' had the highest fruit weight. The highest SSC/Acidity ratio were obtained from 'Osmancik'. There was high level of variation in fruit characteristics among cultivars. In molecular analysis, totally 133 bands were obtained from 23 sequence-related amplified polymorphism (SRAP) primer combinations and 67 of them were polymorphic. Genetic similarity of 17 cultivars was between 0.78 and 1.00. Two cultivars ('Sekergevrek' and '32S04') were found to be more distinct from the other cultivars genetically. This study showed that there was low level of genetic variation most of quince cultivars grown in Turkey. SRAP markers firstly used in quince with this study indicating that it can be used for characterization and diversity analysis of quince.


2020 ◽  
Vol 89 (5) ◽  
pp. 516-524
Author(s):  
Ayako Katayama-Ikegami ◽  
Zion Byun ◽  
Suzuka Okada ◽  
Masahiro Miyashita ◽  
Takane Katayama ◽  
...  
Keyword(s):  

HortScience ◽  
2018 ◽  
Vol 53 (9) ◽  
pp. 1266-1270 ◽  
Author(s):  
Nader R. Abdelsalam ◽  
Hayssam M. Ali ◽  
Mohamed Z.M. Salem ◽  
Elsayed G. Ibrahem ◽  
Mohamed S. Elshikh

Mango (Mangifera indica L.) is a fruit crops belong to the family Anacardiaceae and is the oldest cultivated tree worldwide. Cultivars maintained in Egypt have not been investigated previously. Mango was first brought to Egypt from South Asia. Morphological and molecular techniques were used to identify the genetic diversity within 28 mango cultivars. SSR and EST-SSR were used for optimizing germplasm management of mango cultivars. Significant variations were observed in morphological characteristics and genetic polymorphism, as they ranged from 0.71% to 100%. High diversity was confirmed as a pattern of morphological and genotypes data. Data from the present study may be used to calculate the mango relationship and diversity currently grown in Egypt.


2020 ◽  
Vol 259 ◽  
pp. 108814 ◽  
Author(s):  
Haixia Yu ◽  
Cong Luo ◽  
Yan Fan ◽  
Xiujuan Zhang ◽  
Fang Huang ◽  
...  

FLORESTA ◽  
2012 ◽  
Vol 42 (4) ◽  
pp. 725 ◽  
Author(s):  
Samia Valéria dos Santos Barros ◽  
Claudete Catanhede do Nascimento ◽  
Celso Paulo de Azevedo

 ResumoAs espécies florestais Acacia mangium, Inga edulis e Tachigalia chrysophyllum foram pré-selecionadas para utilização em plantios energéticos. Com o objetivo de caracterizar essas espécies, foram realizados testes a partir das variáveis densidade básica, poder calorífico e análise imediata. O experimento foi implantado na Estação Experimental da EMBRAPA no município de Iranduba/AM. O delineamento foi em blocos ao acaso com três repetições, perfazendo 9 parcelas compostas de 25 plantas cada. Foram retiradas cinco árvores dentre as nove centrais da área útil. Destas, foram retirados os discos com 5 cm de espessura e desdobrados em corpos de prova, para se determinar a densidade básica e demais testes. Realizou-se análise de variância e teste de Tukey a 5% de probabilidade. A Acacia mangium (24,16 cm – 13,09 m) superou as demais em diâmetro e altura, respectivamente. Os dados médios obtidos para densidade básica classificam todas as espécies como madeira de densidade baixa, média e levemente densa. O poder calorífico observado em Acacia mangium (4430,37 kcal/kg) foi estatisticamente superior às demais espécies. Na análise imediata, as espécies apresentaram resultados satisfatórios, sendo apontadas como madeiras adequadas para uso no processo da queima. Os resultados demonstram que as espécies possuem qualidade para produção de lenha.AbstractEnergetic characterization of native and exotic forest species cultivated at Amazonas. The forest species Acacia mangium, Inga edulis and Tachigalia chrysophyllum were pre-selected to be used at energetic crops. In order to their characterization, tests of basic density, heating power and immediate analysis were performed. The experiment was carried out at EMBRAPA’s Experimental Station, located at Iranduba/AM and was designed as randomized blocks, with three repetitions, comprising 9 plots with 25 plants each. Five trees were removed from the nine central ones of the utile area. Discs of 5 cm thick were removed from them and divided into proof bodies to evaluate basic density and other variables. Analysis of variance and Tukey test at 5% of probability were done. Acacia mangium (20.82 cm – 13.41 m) presented greater diameter and height, respectively, than the other species. The data of basic density average classified all three species as low, medium and dense-lightly density wood. The heating power observed for Acacia mangium (4430.37 kcal/kg) was statistically superior to other species. All three species presented satisfactory results at immediate analysis, being identified as suitable woods for use in burning process. Results show that the species present quality for fire wood production.Keywords: Biomass; basic density; heating power; immediate analysis; planting. 


2014 ◽  
Vol 85 (1-2) ◽  
pp. 193-208 ◽  
Author(s):  
M. Kamran Azim ◽  
Ishtaiq A. Khan ◽  
Yong Zhang

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