Impact of Pre-harvest Fruit Bagging Technology on Growth and Quality Traits in Litchi cv. Rose Scented under Indian Prospective

2020 ◽  
Author(s):  
Satish Chand ◽  
Rajat Sharma ◽  
Ranjan Srivastava ◽  
Ajay Kumar Chandra
Keyword(s):  
Fruit Set ◽  
Fruit Weight ◽  
Quality Traits ◽  
The Novel ◽  
Fruit Colour ◽  
Treatment Combination ◽  
Pooled Data ◽  
Novel Technique ◽  
Fruit Cracking ◽  
Fruit Bagging

Litchi orchards of 15 year age in Pantnagar were subjected to different fruit bagging treatments in study entitled “Impact of pre-harvest fruit bagging technology on growth and quality traits in litchi cv. Rose Scented under Indian prospective”. The combination includes white and pink polypropylene bags practiced on three dates i.e. 15, 25 and 30 days after fruit set and a control. Hence, study comprised of 7 treatment combination in total. The data of year 2017 and 2018 as well as pooled data revealed that T1 i.e. white polypropylene bags + bagging 15 days after fruit set was found to be promising in attributes such as fruit cracking (%) and Sun burn (%). T3 White Polypropylene bags + bagging 30 days after fruit set was found best for fruit Weight (g) and Acidity (%), T4 Pink Polypropylene bags + bagging 15 days after fruit set was found promising for TSS (0Brix), T6-Polypropylene Pink + 10th May (30 days after fruit set) was observed to be best for most of the desired attributes viz. Fruit breadth (mm), Yield (Kg/tree), Acidity (%), Anthocyanin (mg/100g), Fruit colour (visual), borer infestation (%) and B:C Ratio. However, fruits without bagging i.e. control were found to have inferior appearance and have maximum fruit cracking (%) and sun burn (%). Thus the bagging of litchi fruits with white polypropylene bags 15 days after fruit set resulted in lesser cracking and sunburn incidence. For other attributes, polypropylene pink bagged 30 days after fruit set was found promising. In Litchi under Indian condition, the novel technique of fruit bagging significantly enhance the fruit appearance and quality.

scholarly journals Influence of pre-harvest fruit bagging and plant cover on peel colour, physical appearance and quality traits of pomegranate fruits in arid conditions

2021 ◽  
Vol 42 (6) ◽  
pp. 1560-1566
Author(s):  
A. Singh ◽  
◽  
H.M. Meena ◽  
P. Santra ◽  
P.R. Meghwal ◽  
...  
Keyword(s):  
Plant Cover ◽  
Single Layer ◽  
Cost Effective ◽  
Fruit Weight ◽  
Climatic Conditions ◽  
Quality Traits ◽  
A Value ◽  
Arid Conditions ◽  
Physical Attributes ◽  
Fruit Bagging

Aim: To study the influence of fruit bagging and plant cover on microclimate modification and its role on external quality traits and physico-chemical fruit characteristics of pomegranate cv. Bhagwa in arid conditions. Methodology: Fruits bagging was done with single layer bags of news paper (NP), brown paper (BP), white parchment paper (PP), non-woven polypropylene (NWP), complete plant covering with non-woven polypropylene (CNWP), and un-bagged with no cover was kept as control. Bagging was done 60 days after fruit set and continued until harvest, each year. Results: Bagging and plant covering modified the microenvironment which positively influenced the fruit development. Among the bags, inside air temperature was higher in BP followed by NP, PP and NWP, while RH was higher in PP. PP bags was most effective for the development of attractive red peel color (a* value = 44.4) followed by NWP (a* value = 39.6) or CNWP (a* value = 36.6). All four bags were able to check thrips incidence completely, while PP bagging provided physical scratches or fungal spot free fruits. Physical attributes of fruits including fruit weight, aril weight, peel thickness and juice content were considerably affected. Interpretation: Fruit bagging or plant covering is simple, cost-effective and eco- friendly way to produce quality safe pomegranate fruits under adverse climatic conditions of arid regions.

The effects of date pollinizer variety and pollination time on fruit set and yield of Medjhol date palm

2014 ◽  
Vol 2 (2) ◽  
pp. 67-71 ◽  
Author(s):  
Abdoul Amir Rahnama ◽  
Esmaeil Rahkhodaei
Keyword(s):  
Date Palm ◽  
Fruit Set ◽  
Block Design ◽  
Male Flower ◽  
Fruit Weight ◽  
Palm Fruit ◽  
Tropical Fruit ◽  
Male And Female ◽  
Time Interaction ◽  
Female Flowers

Date palm is unisexual, being either male or female. Male and female flowers grow on buds called Spathe, which opens naturally when fully mature. It is easy to identify the male and female flowers. Under the method of manual pollination, pollen from a male flower is smeared over female flowers. The pollen variety and pollination time have important effects on date palm fruit set, yield and quality. This experiment was carried out to study the effect of date pollinizer variety and pollination time on fruit set, growth and development of Medjhol date palm variety, in date palm garden of date palm and tropical fruit research institute of Iran during three years from 2009 to 2011. The trail was randomized complete block design in factorial manner with three pollen variety as Ghaname, Vardy, and Samesmave, two pollination time as 1-3 days before or after spathe opening and four replication. The results showed that the Vardy pollen had significant effects and increased the fertility percent and fruit yield, rather than two other pollen varieties. The pollen variety had no significant effects on fruit quality as total sugar, acidity, and bricx. The pollination time before spathe opening significantly increased fertility percent, decreased fruit weight and date palm yield. Finally the pollen variety and pollination time interaction effects showed that, application of Vardy pollen from 1-3 days after spathe opening with the most production date palm yield, equal 19.9 kilogram per any date palm trees, so this treatment is the best and are recommended.

Development and Release of the Novel Near-oblate Butternuttype Squash Variety `Butterbowl'

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 472g-473
Author(s):  
D.P. Coyne ◽  
J.M. Reiser ◽  
D. Smith ◽  
L. Sutton ◽  
D. Lindgren ◽  
...  
Keyword(s):  
Fruit Weight ◽  
Microwave Oven ◽  
Fruit Rot ◽  
Moisture Loss ◽  
The Novel ◽  
Cucurbita Moschata ◽  
True Breeding ◽  
Early Maturing ◽  
Plant Habit ◽  
Winter Squash

`Butterbowl' (NE-RBN-4) is a novel, small-sized (0.8 to 1.36 kg), flavorful (sweet), early maturing (90–95 days), near-oblate butternut type winter squash variety (Cucurbita moschata Duch. Ex Poir). No Butternut squash variety is similar in shape to `Butterbowl'. `Butterbowl' (S6) was derived from selfing a near-oblate open-pollinated S4 line derived from a cross of two true breeding crookneck lines (allelic test) NE-BNCR-67-1-7 (mutant out of `Butternut 23') X golden Cushaw (Agway Co.). Total fruit yield and fruit weight of `Butterbowl' were nearly similar to Butternut `Ponca'. The total fruit weight of'Waltham' was greater than `Butterbowl' in two out of four trials. The vining habit of `Butterbowl' (1.7 to 2.0 m) is more compact than `Waltham' or `Ponca'. `Butterbowl' is suitable for small gardens with limited space due to its compact plant habit. No crookneck fruit developed in `Butterbowl' in all tests. `Butterbowl' is resistant to bacterial spot, black fruit rot, and vine borer while it is moderately susceptible to powdery mildew. `Butterbowl' fruit should be used for consumption up to 45 to 55 days after harvest because slight fruit shriveling occurs at that time due to moisture loss. The fruit cooks uniformally in a microwave oven due to its more uniform flesh thickness.

Analysis of phenotypic diversity of apricot (Prunus armeniaca L.) accessions from Jammu and Kashmir, India

2021 ◽  
pp. 1-13
Author(s):  
Showkat A. Zargar ◽  
Aijaz A. Wani ◽  
M. I. S. Saggoo
Keyword(s):  
Fruit Quality ◽  
Quantitative Traits ◽  
Fruit Weight ◽  
Kernel Weight ◽  
Prunus Armeniaca ◽  
Quality Traits ◽  
Jammu And Kashmir ◽  
Fruit Length ◽  
Upgma Dendrogram ◽  
Fruit Quality Traits

Abstract Apricot (Prunus armeniaca L.) is a world-wide highly appreciated fruit, with its attractive colour, soft texture and typical flavour. In the current investigation, 68 apricot accessions collected from Jammu and Kashmir, India were analysed to determine the measure of variation using 12 qualitative and 16 quantitative traits with an aim to identify superior apricot accessions with excellent fruit quality traits. High phenotypic variability was observed among the studied apricot accessions with significant differences among most of the qualitative and quantitative traits. Fruit-related characteristics including fruit weight, fruit length, fruit ratio, fruit firmness, fruit shape, fruit suture, stone weight, kernel weight and stone shape were the most diverse with a high coefficient of variation (>30%). One way analysis of variance showed significant differences (P < 0.0001) among all the quantitative traits. Significant positive and negative correlations were observed between all the agronomically important fruit quality traits. The principal component analysis (PCA) revealed that 75.34% of the variability was defined by the first eight components. The unweighted pair group method with arithmetic mean (UPGMA) dendrogram, based on all traits measured grouped the accessions into two main clusters with several sub-clusters. Both UPGMA dendrogram and PCA scatter plot formed a cluster of 14 accessions, having the highest values regarding most important fruit quality traits such as fruit weight, fruit length and width, fruit ratio, stone weight and kernel weight can be treated as potentially superior accessions. These accessions can be used directly for cultivation and in future apricot breeding programmes. The present findings are promising for genetic resource management, cultivar improvement and commercial applications of apricot in Jammu and Kashmir, India.

scholarly journals Multi-year analyses on three populations reveal the first stable QTLs for tolerance to rain-induced fruit cracking in sweet cherry (Prunus avium L.)

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
José Quero-García ◽  
Philippe Letourmy ◽  
José Antonio Campoy ◽  
Camille Branchereau ◽  
Svetoslav Malchev ◽  
...  
Keyword(s):  
Confidence Intervals ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Linear Models ◽  
Basic Research ◽  
Fruit Weight ◽  
Phenotypic Variance ◽  
Fruit Cracking ◽  
The Stability ◽  
Sweet Cherry Cultivars

AbstractRain-induced fruit cracking is a major problem in sweet cherry cultivation. Basic research has been conducted to disentangle the physiological and mechanistic bases of this complex phenomenon, whereas genetic studies have lagged behind. The objective of this work was to disentangle the genetic determinism of rain-induced fruit cracking. We hypothesized that a large genetic variation would be revealed, by visual field observations conducted on mapping populations derived from well-contrasted cultivars for cracking tolerance. Three populations were evaluated over 7–8 years by estimating the proportion of cracked fruits for each genotype at maturity, at three different areas of the sweet cherry fruit: pistillar end, stem end, and fruit side. An original approach was adopted to integrate, within simple linear models, covariates potentially related to cracking, such as rainfall accumulation before harvest, fruit weight, and firmness. We found the first stable quantitative trait loci (QTLs) for cherry fruit cracking, explaining percentages of phenotypic variance above 20%, for each of these three types of cracking tolerance, in different linkage groups, confirming the high complexity of this trait. For these and other QTLs, further analyses suggested the existence of at least two-linked QTLs in each linkage group, some of which showed confidence intervals close to 5 cM. These promising results open the possibility of developing marker-assisted selection strategies to select cracking-tolerant sweet cherry cultivars. Further studies are needed to confirm the stability of the reported QTLs over different genetic backgrounds and environments and to narrow down the QTL confidence intervals, allowing the exploration of underlying candidate genes.

scholarly journals High-density linkage map construction and identification of loci regulating fruit quality traits in blueberry

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Molla F. Mengist ◽  
Hamed Bostan ◽  
Elisheba Young ◽  
Kristine L. Kay ◽  
Nicholas Gillitt ◽  
...  
Keyword(s):  
Linkage Map ◽  
Fruit Quality ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
High Density ◽  
Soluble Solids ◽  
Quality Traits ◽  
Total Soluble Solids ◽  
Fruit Quality Traits ◽  
High Density Linkage Map

AbstractFruit quality traits play a significant role in consumer preferences and consumption in blueberry (Vaccinium corymbosum L). The objectives of this study were to construct a high-density linkage map and to identify the underlying genetic basis of fruit quality traits in blueberry. A total of 287 F1 individuals derived from a cross between two southern highbush blueberry cultivars, ‘Reveille’ and ‘Arlen’, were phenotyped over three years (2016–2018) for fruit quality-related traits, including titratable acidity, pH, total soluble solids, and fruit weight. A high-density linkage map was constructed using 17k single nucleotide polymorphisms markers. The linkage map spanned a total of 1397 cM with an average inter-loci distance of 0.08 cM. The quantitative trait loci interval mapping based on the hidden Markov model identified 18 loci for fruit quality traits, including seven loci for fruit weight, three loci for titratable acidity, five loci for pH, and three loci for total soluble solids. Ten of these loci were detected in more than one year. These loci explained phenotypic variance ranging from 7 to 28% for titratable acidity and total soluble solid, and 8–13% for pH. However, the loci identified for fruit weight did not explain more than 10% of the phenotypic variance. We also reported the association between fruit quality traits and metabolites detected by Proton nuclear magnetic resonance analysis directly responsible for these fruit quality traits. Organic acids, citric acid, and quinic acid were significantly (P < 0.05) and positively correlated with titratable acidity. Sugar molecules showed a strong and positive correlation with total soluble solids. Overall, the study dissected the genetic basis of fruit quality traits and established an association between these fruit quality traits and metabolites.

Modified apical dissection and lateral prostatic fascia preservation: Preliminary analysis of the reproducibility of the novel technique

2021 ◽  
Vol 79 ◽  
pp. S1745
Author(s):  
B.M.C. Rocco ◽  
L. Sarchi ◽  
S. Assumma ◽  
A. Cassani ◽  
F. Turri ◽  
...  
Keyword(s):  
Preliminary Analysis ◽  
The Novel ◽  
Novel Technique

A Novel Technique for Growth of Lithium-free ZnO Single Crystals

2013 ◽  
Vol 1538 ◽  
pp. 405-410
Author(s):  
Shaoping Wang ◽  
Aneta Kopec ◽  
Andrew G. Timmerman
Keyword(s):  
Single Crystal ◽  
The Novel ◽  
Uv Laser ◽  
Uv Detectors ◽  
Growth Technique ◽  
Light Emitting ◽  
Alkaline Metals ◽  
Novel Technique ◽  
Solar Blind ◽  
Zno Single Crystal

ABSTRACTA ZnO single crystal is a native substrate for epitaxial growth of high-quality thin films of ZnO-based Group II-oxides (e.g. ZnO, ZnMgO, ZnCdO) for variety of devices, such as UV and visible-light emitting diodes (LEDs), UV laser diodes and solar-blind UV detectors. Currently, commercially available ZnO single crystal wafers are produced using a hydrothermal technique. The main drawback of hydrothermal growth technique is that the ZnO crystals contain large amounts of alkaline metals, such as Li and K. These alkaline metals are electrically active and hence can be detrimental to device performances. In this paper, results from a recently developed novel growth technique for ZnO single crystal boules are presented. Lithium-free ZnO single crystal boules of up to 1 inch in diameter was demonstrated using the novel technique. Results from crystal growth and materials characterization will be discussed.

scholarly journals Almond Fruit Drop Patterns under Mediterranean Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 544
Author(s):  
Jaume Lordan ◽  
Lourdes Zazurca ◽  
Mercè Rovira ◽  
Laura Torguet ◽  
Ignasi Batlle ◽  
...  
Keyword(s):  
Fruit Set ◽  
Growing Season ◽  
Fruit Weight ◽  
Key Factors ◽  
Full Bloom ◽  
Tree Management ◽  
Fruit Drop ◽  
Mediterranean Conditions ◽  
New Cultivars ◽  
Scion Cultivar

Almond is an important tree nut crop worldwide, and planted areas have been increasing year after year. While self-fertility is one of the key factors when it comes to improved almond productivity of new cultivars, yield is also affected by the number of flowers produced, pollination, fruit set, fruit drop, and fruit weight. Almond fruit drop patterns of 20 Mediterranean almond cultivars were studied over three years. In addition, fruit drop patterns of two scion cultivars ‘Marinada’ and ‘Vairo’ budded onto eight to 10 different rootstocks managed with three different pruning strategies were studied for two years. Cumulative flower and fruit drop ranged from 50% to 90% among cultivars and treatments, and there were up to four fruit drop events during the growing season, the main one occurring from 20–60 days from full bloom (DFFB). Subsequent drops were at 100 DFFB, 120–140 DFFB, and the last one at 160–180 DFFB. The later drops were less apparent. In general, about half of the cumulative drop was comprised of buds and flowers, and the remaining percentage was fruit that dropped 20 or more days after full bloom. Furthermore, different fruit drop patterns were observed depending on the cultivar. For late- and extra-late flowering cultivars, cumulative fruit drop began to decrease earlier, with most of the drops occurred already at full bloom, whereas the opposite was observed for the early flowering cultivars. Rootstocks also had an important effect on the fruit drop pattern, with different effects depending on the scion cultivar. Tree management, such as type of pruning, also had an important effect on the rate of fruit drop and cumulative drop. Therefore, each combination of cultivar × rootstock × pruning type will require different strategies in order to reduce the fruit drop and optimize crop loads.

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