scholarly journals Effect of different combinations of antibiotics on fruit quality and antioxidant defense system in Huanglongbing infected Kinnow orchards

AMB Express ◽  
2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Sajjad Hussain ◽  
Muhammad Junaid Rao ◽  
Muhammd Akbar Anjum ◽  
Shaghef Ejaz ◽  
Ummad-ud-Din Umar ◽  
...  
Keyword(s):  
Antioxidant Defense System ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Sugars ◽  
Ampicillin Sodium ◽  
Citrus Greening Disease ◽  
Fruit Setting ◽  
Candidatus Liberibacter ◽  
Ripening Index ◽  
And Control

Abstract Huanglongbing (HLB), also known as citrus greening disease, is the most devastating disease of citrus across the world, caused by the phloem limited fastidious bacterium ‘Candidatus Liberibacter spp.’. This research was conducted on HLB infected 10-year-old Kinnow orchard located at Multan, Pakistan. Different classes of antibiotics in various combinations were applied on HLB-infected trees. The antibiotic treatments were applied before flowering in February, during fruit setting in April and at fruit growth stage in June. The different antibiotics combinations used were Ampicillin sodium + Rifampicin, Cefalexin + Rifampicin, Ampicillin sodium + Cefalexin, Ampicillin sodium + Cefalexin + Rifampicin and Control (distilled water). Different fruit qualitative and quantitative attributes were examined. The application of antibiotics significantly decreased 2–11% in flower, June and pre-harvest drops as compared to control. Further, antibiotics increased fruit weight and yield by five times while the juice content, total soluble solids, ripening index, total sugars, phenolic and vitamin C content were also increased in fruits. In addition, total soluble proteins, peroxidase and catalase activities were increased in fruits harvested from antibiotic treated plants compared to control, however the superoxidase dismutase activity was decreased in fruits of antibiotic treated plants. Finally, it is concluded that application of different antibiotics combinations helps in improving the fruit yield and different quality attributes of HLB infected Kinnow trees.

scholarly journals Promising Selections of the Honeyberry (Melicocca bijuga L.) from Puerto Rico

1969 ◽  
Vol 51 (1) ◽  
pp. 66-70
Author(s):  
George C. Jackson
Keyword(s):  
Puerto Rico ◽  
Citric Acid ◽  
Nutritional Value ◽  
Fruit Weight ◽  
Western Hemisphere ◽  
Soluble Solids ◽  
Total Sugars ◽  
Weight Percentage ◽  
Edible Fruit ◽  
Citric Acid Content

The tropical tree, Melicocca bijuga L., native of the Western Hemisphere, produces an edible fruit which is very much appreciated when those of quality can be obtained. Nutritional value and previous selection work is reviewed. Four promising selections were made from 54 trees evaluated in south Puerto Rico. The methods employed involved measurements of fruit weight, percentage edible pulp, pH, total soluble solids, citric acid content, percentage total sugars, and vitamin C content. The four selections made had 46.6 to 48.6 percent of edible matter by weight, and contained 22.7 to 26.0 percent of total sugars. Descriptions of the four selections are presented.

scholarly journals Characteristics of promising apricot (Prunus armeniaca L.) genetic resources in Central Serbia based on blossoming period and fruit quality

2010 ◽  
Vol 37 (No. 2) ◽  
pp. 46-55 ◽  
Author(s):  
T. Milošević ◽  
N. Milošević ◽  
I. Glišić ◽  
B. Krška
Keyword(s):  
Fruit Weight ◽  
Prunus Armeniaca ◽  
Soluble Solids ◽  
Mineral Matter ◽  
Total Sugars ◽  
Breeding Programmes ◽  
Prunus Armeniaca L ◽  
The Difference

This study presents results on the performance of apricot (Prunus armeniaca L.) genotypes in Central Serbia. The research included observation and recording of biological (i.e. phenological) traits and in situ sampling of fruits from 1,210 grafted trees for determination of pomological and sensorial traits. A total of 14 genotypes were selected and compared with Hungarian Best (control cultivar). The difference in blossoming time between two years was one month. In 2006, blossoming time was found to be earlier in three genotypes, simultaneous in five genotypes and later in six as compared to the control. In 2007, bloom was earlier in four genotypes, simultaneous in four and later in six genotypes. Average fruit weight ranged from 41.34 ± 0.8 to 81.50 ± 4.1 g, T-5 being the only genotype having the fruit weight lower than Hungarian Best (49.07 ± 2.2 g). The content of soluble solids, total sugars, and mineral matter ranged from 15.72–18.88%, 11.53– 4.99%, and 0.29–0.43%, respectively, and total acidity was 0.77–1.08%. The appearance and the skin colour of the genotypes were highly attractive. They have promising traits which suggest that they can be useful parents in apricot breeding programmes.

scholarly journals Characterization of rambutan (Nephelium lappaceum) fruits from outstanding mexican selections

2011 ◽  
Vol 32 (4) ◽  
pp. 1098-1104 ◽  
Author(s):  
Marian Guadalupe Hernández Arenas ◽  
Daniel Nieto Angel ◽  
María Teresa Martínez Damian ◽  
Daniel Teliz Ortiz ◽  
Cristian Nava Díaz ◽  
...  
Keyword(s):  
Vitamin C ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Sugars ◽  
Total Soluble Solids ◽  
Nephelium Lappaceum ◽  
Sensorial Evaluation ◽  
Total Seed ◽  
June July

Fruits of five regional selections of rambutan (Nephelium lappaceum L.) were characterized to identify those with international marketing quality to promote their propagation in Mexico, improvement and conservation in germoplasm bank. The fruits were harvested in June, July, and August 2008 and, after each harvest, were assessed for shape (length/diameter), firmness, fruit weight, number of fruits per kilogram, weight and percentage of pericarp, seed and aril, total soluble solids, total sugars, vitamin C content, pH, and titratable acidity. In addition, a sensorial evaluation was carried out with 31 panelists who graded each selection for color, sweetness, and acidity. Fruits of five selections were ovoid, and with the following characteristics: firmness values from 43.7 to 51.0 N, fruit weight ranged from 22.4 to 34.7 g, registering from 28.9 to 45.0 fruits per kg; pericarp weight from 10.5 to 17.3 g (45.9 to 49.9% of the total fruit weight); total seed weight from 2.2 to 2.5 g (7.0 to 10.0%); average arils weight from 8.9 to 13.1 g (37.5 to 41.4%). The fruits had high contents of total soluble solids (17.8 to 20.4 ºBrix), total sugars (211.95 to 242.70 mg/100g in the edible portion), vitamin C (37.9 to 69.1 mg/100 g), pH 5.0, and titratable acidity of 0.20 to 0.28%. The fruits from the RT-01 and RT-05 selections had better attributes in fruit weight, total soluble solids and titratable acidity and were better accepted by the panelists. Harvest date significantly affects rambutan fruit quality; at the middle and end of the season harvested fruits had better qualitative characteristics for the marketing.

scholarly journals Variability of properties of promising apple selections of the ‘Jonathan’ group

Genetika ◽  
2012 ◽  
Vol 44 (1) ◽  
pp. 129-138
Author(s):  
Milan Lukic ◽  
Sladjana Maric ◽  
Ivana Glisic ◽  
Nebojsa Milosevic
Keyword(s):  
Large Scale ◽  
Unit Area ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Harvest Time ◽  
Important Species ◽  
Total Sugars ◽  
Breeding Programmes ◽  
Solids Content

Apple (Malus ? domestica Borkh.) is economically the most important species of genus Malus Miller. Developing new apple genotypes is carried out on a large scale in many scientific institutes throughout the world. ?Jonathan? is one of four cultivars which have been used as the most frequent progenitors in apple breeding programmes worldwide. The paper presents six promising apple selections bred at Fruit Research Institute, and ?Jonathan? as the parental cultivar. The assessed selections derived from the crosses ?Jonathan? ? ?Idared? (J/3/60 and J/2/53), [?Jonathan? ? J/54/53/59] ? J/27/127/62 (J/4/106) and ?Jonathan? ? J/54/53/59 (J/1/55, J/1/71 and J/1/15). Major phenological properties (flowering phenophase and harvest time), cropping and pomological properties (morphometrical and chemical characteristics of fruits) were assessed. The highest fruit weight (J/2/53; 188.4 g) and yield per unit area (J/3/60; 34 t ha-1) were reported in selections derived from the cross ?Jonathan? ? ?Idared?. Selections raised from a cross between ?Jonathan? and J/54/53/59 have high quality fruits. The highest soluble solids content was found in J/1/55 (15.3%), while the highest total sugars and acids content was evidenced in J/1/71 (9.61%; 1.46%, respectively).

scholarly journals Effects of Cyperin 10 EC and Neem extract on pollinator abundance, fruit setting and quality of mango

2014 ◽  
Vol 11 (2) ◽  
pp. 189-192 ◽  
Author(s):  
S Mohan ◽  
N Nahar ◽  
KS Ahmed
Keyword(s):  
Fruit Quality ◽  
Fruit Weight ◽  
Neem Extract ◽  
Pollinator Abundance ◽  
Fruit Setting ◽  
And Control

Effects of cyperin 10 EC and neem extract on pollinators, fruit setting and fruit quality of mango was investigated. Number of pollinators visited mango inflorescences was higher in morning in comparison to noon and afternoon. In control plants, average 25.67 pollinators visited within 30 minutes which was higher than cyperin 10 EC (20.00) and neem extract treated (24.34) plants. The pollinators were under the order Hymenoptera (26.31%), Diptera (52.42%), Odonata (5.26%) and unidentified (10.53%). Bloomed and fertilized flowers were lower in cyperin treated plants than neem treated and control plants. Highest average fruit weight was obtained from neem treated plants, whereas cyperin treated plants gave lowest percentage of infested fruit and control plants gave highest percentage of deformed fruit. DOI: http://dx.doi.org/10.3329/jbau.v11i2.19861 J. Bangladesh Agril. Univ. 11(2): 189-192, 2013

scholarly journals The accumulation of sugars and organic acids in blackberry fruit in the conditions of Сentral Russia

2021 ◽  
Vol 36 ◽  
pp. 02006
Author(s):  
Margarita Makarkina ◽  
Lidia Gruner ◽  
Oksana Vetrova ◽  
Daria Matnasarova
Keyword(s):  
Organic Acids ◽  
Dry Matter ◽  
Correlation Coefficients ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Central Russia ◽  
Biochemical Components ◽  
And Control ◽  
New Cultivars ◽  
Acid Index

The taste characteristics of berries of 26 cultivars, elite and selected forms of blackberries grown in Central Russia are presented: dry matter, monosaccharides, sucrose acid the total amount of sugars. The sugar-acid index has been calculated. The best genotypes have been identified according to the content of dry matter and sugars - Brzezina and Agawam cultivars, elite seedlings LN-4, LN-13, LN-14 and selected seedlings LN-5, LN-7, LN-8, according to the content of organic (titrated) acids and sugar-acid index - Brzezina, Black Satin, Loch Tau, seedlings of Black Satin, Cheyenne, Loch Ness - LN-6, LN-10, EV LN-13 and control cultivar Agawam. A high traits’ conjugation was established: the sugar-acid index and the content of monosaccharides, the total amount of sugars, soluble solids, as well as a high inverse dependency between the content of organic acids and the sugar-acid index. Low unreliable correlation coefficients (r = - 0.28 … + 0.13) were obtained, indicating the absence of links between the fruit weight and the content of biochemical components responsible for the taste characteristics of genotypes, which is a positive fact when creating new cultivars with high taste and a significant weight of fruits, indicating their independent inheritance.

Effect of Potassium Iodide and Salicylic Acid in the Cultivation of Hydroponic Strawberries (Fragaria L)

2020 ◽  
pp. 17-23
Author(s):  
O. Silva-Marrufo ◽  
R.I. Marín-Tinoco ◽  
J.A. Castañeda-Venegas
Keyword(s):  
Salicylic Acid ◽  
Potassium Iodide ◽  
Nutritional Value ◽  
Fruit Weight ◽  
Soluble Solids ◽  
P Value ◽  
Subsequent Work ◽  
Hydroponic System ◽  
And Control ◽  
Hydroponic Conditions

The fortification of essential foods that the majority of the population consumes has a very great advantage in nutrition; Since it is one of the most effective ways to fill some deficiencies, the objective of this work is to increase the nutritional value of strawberry cultivation under hydroponic conditions, the methodology started with the disinfection with 10% chlorine of the hydroponic system, it was located In the basket, to place the seedlings, the nutrition was implemented with the initial Steiner's solution at 50% and later at 100%, three salicylic acid (AS) treatments were carried out: 0.0012 g / L, 0.0030 g / L, 0.0070 g / L and control (0 salicylic acid) and Potassium Iodide (KI) with treatments of 0.0014g / L, 0.0016g / L and 0.0018g / L and control (0 iodine). In soluble solids, a total of three fruits were selected per treatment, it was shown that (T3), repetition 1 (0.0014 g / L) with KI, obtained an average of 8 fruits, the (T1), repetition 2 (0.0030 g / L) with AS (Salicylic Acid) with an average of 23.3 g of fruit weight, repetition 1 (0.0014 g / L) with IK, obtained an average of 8.8000 ºBrix, the ANOVA analysis shows in AS a P value of 0.034, in the control has a P value of 0.054 and in IK a P value of 0.040, which tells us that there is a positive significance in relation to the control towards the weight of the fruits, for which treatment number three is suggested for subsequent work . Keywords: Salicylic acid, potassium iodide, strawberry, NFT system and refractometer.

scholarly journals Strand thinning of Khadrawi date palm cultivar in relation to yield and fruit quality

2019 ◽  
Vol 43 (1) ◽  
Author(s):  
A. R. Moustafa ◽  
N. Abdel-Hamid ◽  
A. Abd El-Hamid ◽  
M. R. El-Sonbaty ◽  
S. K. M. Abd El-Naby
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Chemical Properties ◽  
Fruit Weight ◽  
Total Sugars ◽  
Palm Fruits ◽  
And Control ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract Background This experiment was carried out during 2015 and 2016 seasons to investigate the effect of strand thinning treatments by removing 15 and 30% of the total number of strands from the bunch center after 8 weeks from pollination (kimri stage) on productivity and fruit quality of Khadrawi date palm cultivar compared to the control (without thinning). Results The present results indicated that strand thinning by removing 30% of the total number of strands gave the lowest bunch weight and yield per palm compared to thinning 15% and control treatments during the two seasons of study. Also, removing 30% of the total number of strands improved some physical properties, i.e., fruit weight, flesh weight, fruit length, and fruit diameter than control in both seasons. All strand thinning treatments improved some chemical properties such as TSS %, total sugars %, and reducing sugars % than control (without thinning). However, both 15 and 30% strand thinning treatments had no significant effect on nonreducing sugars %, total acidity %, and tannins content in the two studied seasons. Conclusion From the obtained results, it was revealed that application of thinning treatment by removing 15 or 30% of the total number of strands from bunch center improved some physical and chemical properties of Khadrawi date palm fruits although there are no significant differences found between strand thinning at 15% and control during the second season.

scholarly journals Pre-harvest Fruit Bagging Enhanced Quality and Shelf-life of Mango (Mangifera indica L.) cv. Amrapali

2020 ◽  
pp. 45-54
Author(s):  
M. M. Akter ◽  
M. T. Islam ◽  
N. Akter ◽  
M. F. Amin ◽  
M. A. Bari ◽  
...  
Keyword(s):  
Shelf Life ◽  
Mangifera Indica ◽  
Insect Pest ◽  
White Paper ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Physical Parameters ◽  
Sensory Qualities ◽  
And Control ◽  
Fruit Bagging

A study was performed during 2016 from January to July for safe mango production by applying the minimum use of pesticides. The mango fruits were bagged at marble stage (45 days after fruit set) with various treatments viz: T0: No bagging (control), T1: Brown paper double-layered bag (BPB); T2: White paper single-layered bag (WPB); T3: Perforated polythene bag (PB) and T4: White cloth bag (WCB). In physical parameters, brown and white paper bag recorded the maximum fruit weight (169.10 g and 147.6 g), fruit length (8.57 and 8.33 cm), fruit diameter (5.63 and 5.87 cm) and pulp weight (124.47 g and 105.60 g) respectively, while minimum result was found in the other treatments and control. Meanwhile, in bagging fruits, chemical parameters of total soluble solids, ascorbic acid, percent of citric acid, reducing sugars and β- carotene were increased over control. Brown paper bag changed fruit color. The sensory qualities in fruits of brown and white paper bags were improved over control. Fruit retention was significantly improved by pre-harvest fruit bagging with a brown paper bag (95.90%), white paper bag (95.50%), and control (90.00%) over polythene bag (80.00%). Fruits with brown paper bags showed shelf life up to 18 days with good physical quality and the lowest weight loss against 15 days of control fruits. The sensory attributes were better in fruits of brown, white paper and white cloth bags over control. Bagging at marble stage also reduced the occurrence of spongy tissue and the incidence of mealy bugs. These results indicate that fruit bagging can improve the quality and the shelf life of mango cv. Amrapali through the reduction of disease and insect-pest attack.

scholarly journals Physicochemical and Descriptive Sensory Analysis of Arkansas-grown Peaches and Nectarines

HortScience ◽  
2019 ◽  
Vol 54 (2) ◽  
pp. 226-235
Author(s):  
Molly Felts ◽  
Renee T. Threlfall ◽  
Margaret L. Worthington
Keyword(s):  
Organic Acids ◽  
Prunus Persica ◽  
Principal Component ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Quality Factors ◽  
Fresh Market ◽  
Total Sugars ◽  
White River

Understanding how human perception is related to physicochemical attributes strengthens identification of ripeness and marketability parameters for peaches and nectarines [Prunus persica (L.) Batsch]. Six peach and nectarine cultivars (Amoore Sweet, Bowden, Effie, Loring, Souvenirs, and White River) and three advanced breeding selections (A-827, A-850, and A-865) were harvested from trees grown at the University of Arkansas System Division of Agriculture Fruit Breeding Program in Clarksville, AR. Physical and chemical characteristics of the genotypes at harvest were as follows: fruit weight of 134.4 to 330.2 g, firmness of 7.8 to 35.8 N, soluble solids of 7.5% to 14.7%, pH of 3.3 to 4.8, titratable acidity of 0.2% to 1.1%, total sugars of 1.7 to 10.4 g/100 g, and total organic acids of 0.1 to 0.9 g/100 g. Overall, A-865 had the lowest fruit weight (134.0 g) and pH (3.3), and the highest firmness (35.8 N), soluble solids (14.7%), titratable acidity (1.1%), total sugars (10.4 g/100 g), and total organic acids (0.8 g/100 g). ‘White River’ had the largest fruit (330.2 g) and pit (11.06 g). A-850 (63.6) had the highest soluble solids/titratable acidity ratio, and ‘Bowden’ (12.7) had the lowest. A trained descriptive sensory panel (n = 10) was used to create a lexicon for Arkansas-grown fresh-market peaches and nectarines. The panel evaluated the fruit for aroma (n = 4), external appearance (n = 8), internal appearance and pit attributes (n = 6), basic tastes (n = 3), aromatics while eating fruit (n = 5), feeling factors (n = 2), and texture (n = 6). Principal component analysis explained 63.4% of the data variance attributed to texture and acidity. Of all of the physicochemical attributes, firmness had the most significant correlations with the descriptive sensory attributes, followed by fruit weight. Firmness was negatively correlated (r = −0.70 to 0.81) to fruit size, fuzziness, amount of bruises on the flesh, pit size, and moisture release, and positively correlated (r = 0.68–0.84) to sourness, green/unripe aromatics, flesh hardness, flesh crispness, and fibrousness between the teeth. Fruit weight was positively correlated (r = 0.67–0.75) to fruit and pit size, overripe aromatics, and moisture release. Significant correlations between descriptive sensory appearance, basic tastes, aromatics, and texture attributes with physicochemical attributes provide an indication of ripeness and marketability parameters for peaches and nectarines. These descriptive attributes are quality factors that impact consumer purchases and perception of fresh-market peaches and nectarines.

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