scholarly journals FRUIT GROWTH AND DESWEETING AMONG LONGAN (Euphoria longana Lam.) VARIETIES

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 669h-670
Author(s):  
Chung-Ruey Yen ◽  
Jer-Way Chang
Keyword(s):  
Fruit Development ◽  
Growth Curves ◽  
Fruit Weight ◽  
Fruit Growth ◽  
Soluble Solids ◽  
Water Inflow ◽  
Total Soluble Solids ◽  
Full Development ◽  
Water Contents

Fruit growth curves of three longan varieties showed single sigmoid. Seed was the major sink in longan at early fruit development. Aril grew only after seed had approached full development. Early `Yangtaoyeh' grew more rapidly than two later varieties. Desweeting, levels of aril total soluble solids (TSS) increased to maximum and then declined gradually at later fruit development, occurs often in longan. Variation of desweeting rate among varieties was significant. Increases of fruit weight during desweeting (from dates of maximum TSS to end of experiment) were 55.4%, 50.9%, and 7.3% for `Yangtaoyeh', `Fenko', and `Shihyueh', respectively. Periods of water contents increase in aril coincided with the changes of fruit weight of three varieties. Dilution of TSS by water inflow was one of major factor of desweeting in longan fruit. Girdling did not slow down decline of aril total soluble solids.

Effect of timing of hand thinning on productivity of Moorpark apricots destined for drying

1999 ◽  
Vol 39 (7) ◽  
pp. 885 ◽  
Author(s):  
M. A. Rettke ◽  
A. P. Dahlenburg
Keyword(s):  
Fruit Development ◽  
South Australia ◽  
Fruit Weight ◽  
Fresh Fruit ◽  
Soluble Solids ◽  
Full Bloom ◽  
Total Soluble Solids ◽  
Fruit Thinning ◽  
Dried Fruit ◽  
Fruit Stone

Summary. Thinning at full bloom was compared with thinning at 3 stages of fruit development and the effects on size, total soluble solids level (TSS) and yield of apricots are reported. In 2 seasons separate branches of 9-year-old Moorpark apricot trees were hand-thinned to a density of 1 blossom or fruit per 50 mm of fruiting wood. Times of thinning were at full bloom, 5–15 mm size fruit, stone tip hardening and 21 days post stone tip hardening. These treatments were compared with an unthinned control. Experimentation was carried out at Loxton, South Australia. All thinning treatments reduced the yield of fresh fruit. Thinning reduced yield of dried fruit irrespective of timing in the first season but only at the 5–15 mm diameter fruit timing in the second season. Total soluble solids level of the fruit was increased by thinning which tended to improve drying ratio. Compared to the unthinned control all thinning treatments increased the size of fresh fruit. Mean fruit weight and diameter progressively decreased as thinning was delayed from full bloom till stone tip hardening. Thinning at full bloom produced higher yields of 35-mm-grade dried fruit than other treatments. To achieve the greatest benefit from thinning it should be carried out at blossoming.

scholarly journals Tree Physiology, Fruit Growth and Nutrient Elements of Wax Apple (Syzygium Samarangense) as Affected by Branch Bending Angle

2021 ◽  
Vol 34 (1) ◽  
pp. 206-221
Author(s):  
Mohammad M. Khandaker ◽  
Nurul H. Ismail ◽  
Umar A. Abdullahi ◽  
Md. A. Alam ◽  
Noor A. Badaluddin ◽  
...  
Keyword(s):  
Fruit Development ◽  
Block Design ◽  
Vertical Axis ◽  
Fruit Weight ◽  
Fruit Growth ◽  
Soluble Solids ◽  
Bending Angle ◽  
Apple Fruits ◽  
Fruit Diameter

This study was conducted to evaluate the potential effects of branch bending angle on the plant physiological characteristics, mineral nutrients accumulation and fruit quality of wax apple. Different treatments with five replicates each by Randomized Complete Block Design (RCBD) layouts were arranged in this study. All the treatments represent different branch angles which were at 5˚ (control), 20˚, 45˚, 65˚ and 85˚ from vertical axis. Leaf chlorophyll content (SPAD chlorophyll index) was significantly affected by different bending treatments at a budding stage, flowering, fruit development and after harvesting of wax apple. Total soluble solids (TSS) content in the leaves of bent branches increased significantly at before bud development, flowering, fruit ripening and after harvesting stages of wax apple trees. During fruit development and maturation stages, leaf TSS content was decreased in all bent branches. The results showed that 20˚ to 65˚ angle bent branches increase weight and firmness of fruit, fruit diameter and produced dark-coloured fruit compared to control. The results showed that 65˚ bent branches give the highest potassium (K+) and magnesium (Mg2+) content in the fruits. Higher sodium (Na+), iron (Fe2+) and calcium (Ca2+) content in fruits were found in 20˚ bent branches.  There was a positive correlation between fruit TSS with Mg2+ (r = 0.70), with Na+ (r = 0.67) and with Ca2+ (0.57) content in the bent branches of wax apple. Fruit TSS content also positively correlated with firmness and peel colour of wax apple fruits. The number of fruit, fruit weight and fruit diameter of wax apple also positively correlated (weak) with leaves TSS content. It can be concluded that 20˚ to 65˚ branch bending angle are promising for enhancing plant physiology, fruit growth and quality of wax apple fruits.

Evaluasi Keragaan Beberapa Hibrida Semangka Koleksi Balai Penelitian Tanaman Buah Tropika

2019 ◽  
Vol 15 (2) ◽  
pp. 101-105
Author(s):  
Makful Makful ◽  
Kuswandi Kuswandi ◽  
Sahlan Sahlan ◽  
Mega Andini
Keyword(s):  
Skin Color ◽  
Sweet Taste ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Hybrid Breeding ◽  
Skin Thickness ◽  
Tropical Fruit ◽  
Total Soluble Solids ◽  
Soluble Solid ◽  
High Yielding Varieties

Hybrid breeding of watermelon has led to the formation of high-yielding varieties. The objectives of the research were to determine the performance of hybrid watermelon of the Indonesian Tropical Fruit Research Institute (ITFRI) collection and to evaluate the superiority of each hybrid. The research has been conducted at Sumani Experimental Garden, ITFRI, Solok, West Sumatera, from April to July 2016. The material used consisted of 19 cross combinations. The data from this descriptive study were presented in the form of averages and pictures. The results showed that the hybrids that were tested showed diversity in size, fruit skin color, flesh color, skin thickness and fruit sweetness. Hybrids with three excellent characters, i.e. medium fruit weight, high total soluble solids (TSS) value, and moderate rind thickness, were not yet obtained. Hybrids that had the superiority in term of sweet taste and shelf life were BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP and SGP × BT6. Keywords: hybrid, performance, total soluble solids, watermelon   ABSTRAK Pemuliaan hibrida pada semangka mengarah kepada pembentukan varietas berdaya hasil tinggi. Penelitian bertujuan untuk mengetahui keragaan hibrida semangka koleksi Balitbu Tropika dan untuk mengevaluasi keunggulan masing-masing hibrida Penelitian dilaksanakan di Kebun Percobaan Sumani, Balitbu Tropika, Solok, Sumatera Barat, dari bulan April sampai dengan Juli 2016. Materi yang digunakan terdiri dari 19 kombinasi persilangan. Data hasil penelitian deskriptif ini ditampilkan dalam bentuk rataan dan gambar. Hasil penelitian menunjukkan bahwa hibrida yang diuji memiliki keragaman dalam ukuran, warna kulit buah, warna daging buah, ketebalan kulit buah dan kemanisan. Belum ditemukan hibrida yang memiliki tiga karakter unggul, yang terdiri dari bobot buah sedang, total padatan terlarut (total soluble solid) tinggi, dan kulit buah agak tebal. Hibrida yang memiliki keunggulan berupa rasa manis dan tahan simpan adalah BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP dan SGP × BT6. Kata kunci: hibrida, keragaan, semangka, total padatan terlarut

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.

scholarly journals `Bing' Sweet Cherry on the Dwarfing Rootstock `Gisela 5': Thinning Affects Fruit Quality and Vegetative Growth but not Net CO2 Exchange

2004 ◽  
Vol 129 (3) ◽  
pp. 407-415 ◽  
Author(s):  
Matthew D. Whiting ◽  
Gregory A. Lang
Keyword(s):  
Leaf Area ◽  
Fruit Quality ◽  
Fruit Development ◽  
Vegetative Growth ◽  
Sweet Cherry ◽  
Fruit Growth ◽  
Soluble Solids ◽  
Stage Iii ◽  
Floral Bud ◽  
Gisela 5

Canopy fruit to leaf area ratios (fruit no./m2 leaf area, F:LA) of 7- and 8-year-old `Bing' sweet cherry (Prunus avium L.) on the dwarfing rootstock `Gisela 5' (P. cerasus L. × P. canescens L.) were manipulated by thinning dormant fruit buds. F:LA influenced yield, fruit quality, and vegetative growth, but there were no consistent effects on whole canopy net CO2 exchange rate (NCERcanopy). Trees thinned to 20 fruit/m2 LA had yield reduced by 68% but had increased fruit weight (+25%), firmness (+25%), soluble solids (+20%), and fruit diameter (+14%), compared to unthinned trees (84 fruit/m2). Fruit quality declined when canopy LA was ≈200 cm2/fruit, suggesting that photoassimilate capacity becomes limiting to fruit growth below this ratio. NCERcanopy and net assimilation varied seasonally, being highest during stage III of fruit development (64 days after full bloom, DAFB), and falling more than 50% by 90 DAFB. Final shoot length, LA/spur, and trunk expansion were related negatively to F:LA. F:LA did not affect subsequent floral bud induction per se, but the number of flowers initiated per bud was negatively and linearly related to F:LA. Although all trees were thinned to equal floral bud levels per spur for the year following initial treatment (2001), fruit yields were highest on the trees that previously had no fruit, reflecting the increased number of flowers initiated per floral bud. Nonfruiting trees exhibited a sigmoidal pattern of shoot growth and trunk expansion, whereas fruiting trees exhibited a double sigmoidal pattern due to a growth lag during Stage III of fruit development. Vegetative growth in the second year was not related to current or previous season F:LA. We estimate that the LA on a typical spur is only sufficient to support the full growth potential of a single fruit; more heavily-set spurs require supplemental LA from nonfruiting shoots. From these studies there appears to be a hierarchy of developmental sensitivity to high F:LA for above-ground organs in `Bing'/`Gisela 5' sweet cherry trees: trunk expansion > fruit soluble solids (Stage III) > fruit growth (Stage III) > LA/spur > shoot elongation > fruit growth (Stages I and II) > LA/shoot. Current season F:LA had a greater influence on fruit quality than prior cropping history, underscoring the importance of imposing annual strategies to balance fruit number with LA.

scholarly journals DESEMPENHO DE CULTIVARES DE TOMATE ITALIANO DE CRESCIMENTO DETERMINADO EM CULTIVO PROTEGIDO SOB ALTAS TEMPERATURAS

Nativa ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 359-356
Author(s):  
Daiane Andréia Trento ◽  
Darley Tiago Antunes ◽  
Flávio Fernandes Júnior ◽  
Márcio Roggia Zanuzo ◽  
Rivanildo Dallacort ◽  
...  
Keyword(s):  
Production Quality ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Lycopersicum Esculentum ◽  
Mato Grosso ◽  
Total Soluble Solids ◽  
Determinate Growth ◽  
Tomato Cultivars

O objetivo desse trabalho foi avaliar a produção, a qualidade e tempo de prateleira de cultivares de tomate tipo italiano de crescimento determinado, produzidos sob ambiente protegido em condições de altas temperaturas. O cultivo foi realizado em Nova Mutum – MT, foram avaliados cinco cultivares: Fascínio (Feltrin sementes), Hy Color (Horticeres), Santa Adélia (TopSeed), SM-16 (Seminis) e Supera F1 (TopSeed), dispostos em blocos casualizados, com quatro repetições. As plantas foram conduzidas em “meia estaca” e não foram podadas. Os parâmetros avaliados foram relativos a produção, a qualidade dos frutos, tempo de prateleira e qualidade no pós-colheita. A cultivar Fascínio apresentou produtividade de 186,1 t ha-1, maior massa média de frutos (144,3g), maior calibre de fruto, (60,7mm), e menor perda de massa no pós-colheita (6,23%). Os melhores resultados de sólidos solúveis totais dos frutos que completaram a maturação na planta foram obtidos das cultivares Santa Adélia (4,3), Fascínio (4,27) e Hy Color (4,21), e dos frutos colhidos no estádio verde-maduro obteve destaque a cultivar Santa Adélia (5,85), e os frutos que ficaram em temperatura ambiente obtiveram maior média de sólidos solúveis totais (5,55). Palavras-chave: termotolerância; Lycopersicum esculentum Mill; produtividade; pós colheita; ambiente protegido.   The performance of determinate growth italian tomato cultivars in protected cropping under high temperatures   ABSTRACT: This study aimed to evaluate the production, quality and shelf time of determinate growth Italian tomato cultivars from a protected environment under high temperature conditions.  The cultivation was conducted in Nova Mutum, state of Mato Grosso, Brazil. Five cultivars were evaluated: ‘Fascínio’ (Feltrin Sementes), ‘Hy Color’ (Horticeres), ‘Santa Adélia’ (TopSeed), ‘SM-16’ (Seminis) and ‘Supera F1’ (TopSeed), disposed in randomized blocks with four repetitions. The plants were managed into the “meia estaca” tutoring method and were not pruned. The parameters evaluated were related to the production, quality of fruits, shelf time and postharvest quality. The ‘Fascínio’ cultivar presented productivity of 186.1 t ha-1, the largest average fruit weight (144.3 g), the largest fruit gauge (60.7 mm) and the smallest postharvest weight loss (6.23%). The total soluble solids best results of fruits that have matured in the plant were obtained from the ‘Santa Adélia’ (4.3), ‘Fascínio’ (4.27) e ‘Hy Color’ (4.21) cultivars. Among the fruits harvested at the mature-green stage, the ‘Santa Adélia’ (5.85) cultivar stood out. The fruits that stayed at room temperature obtained the largest total soluble solids average (5.55). Keywords: thermotolerance; Lycopersicum esculentum Mill; productivity; postharvest; protected environment.

scholarly journals Genetic and Heritability Estimation of Water Apple (Syzygiumaqueum (Burm.f.) Alston)

2019 ◽  
Vol 2 (2) ◽  
pp. 50
Author(s):  
Fitriana Nasution ◽  
Sri Hadiati
Keyword(s):  
Fruit Weight ◽  
Soluble Solids ◽  
Leaf Width ◽  
Genetic Advance ◽  
Genotypic Variance ◽  
Total Soluble Solids ◽  
Fruit Length ◽  
Heritability Estimation ◽  
High Heritability ◽  
Fruit Diameter

Nine different accessions of water apples were evaluated at Indonesian Tropical Fruit Research Institute(ITFRI), Solok, West Sumatera from January 2013 to December 2014. This present study was aimed to evaluate the variability, heritability, genetic advance and its characters in nine different accessions to provide useful information in the improvement program of water apples. The research used Randomized Complete Block Design (RCBD) with two replications. The ANOVA results exposed significant differences at 5% probability level for all characters. Genotypic variance on fruit weight, fruit length, fruit diameter, leaf length were broad. However, the genotypic variance on total soluble solids, leaf width were narrow. The phenotypic variation for all characters was broad. The heritability estimation was categorized as low, moderate, and high. High heritability estimation was recorded for fruit weight, fruit length, fruit diameter, and leaf diameter. Moderate heritability estimation was noticed for total soluble solids. Leaf width had low heritability estimation. High heritability and high genetic advance were observed on fruit weight.

scholarly journals The Influence of Climate on Fruit Development and Quality of Four Low-chill Peach Cultivars

HortScience ◽  
2009 ◽  
Vol 44 (3) ◽  
pp. 666-670 ◽  
Author(s):  
Todd W. Wert ◽  
Jeffrey G. Williamson ◽  
Jose X. Chaparro ◽  
E. Paul Miller ◽  
Robert E. Rouse
Keyword(s):  
Fruit Development ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
North Central ◽  
Southwest Florida ◽  
The North ◽  
Solids Content

The effect of climate was observed on fruit quality of four low-chill peach cultivars (Flordaprince, Flordaglo, UFGold, and TropicBeauty). The cultivars were evaluated in three locations (north–central, central, and southwest Florida). Soluble solids content (SSC), titratable acidity (TA), SSC:TA ratio, fruit weight, blush, and fruit development period (FDP) were determined. Longer FDPs were observed at the north–central location than at the southwest location. Fruit development and the expression of quality attributes were affected by location during fruit growth with higher color and SSC and shorter FDP occurring under warmer conditions. Within locations, ‘UFGold’ had the shortest FDP except at the southwest location where its chilling requirement may not have been met. At the central and southwest locations, ‘UFGold’ also tended to have lower TA values and higher SSC;TA ratios than the other cultivars.

scholarly journals Variability Parameters of Yield and Quality Attributes in Bitter Gourd (Momordica charantia L.)

2021 ◽  
pp. 172-177
Author(s):  
Som Prakash ◽  
R. S. Verma ◽  
R. B. Ram ◽  
Bhag Chand Shivran ◽  
Harvindra Pal
Keyword(s):  
Coefficient Of Variation ◽  
Research Work ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Total Soluble Solids ◽  
Yield And Quality ◽  
Marketable Fruit ◽  
Number Of Branches

The experiment of the present research work was conducted during summer season of 2018-19 and 2019-20 at Horticulture Research Farm-I, Department of Horticulture, School of Agricultural Sciences and Technology, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya-Vihar, Rae Bareli Road, Lucknow (U.P.), India. The analysis of variance clearly reveals significant differences among the genotypes for all characters. The observations recorded on various characters showed that the estimates of phenotypic coefficient of variation (PCV) were higher than genotypic coefficient variation (GCV) for all characters. The high phenotypic as well as genotypic coefficient of variation were observed in marketable fruit yield per plant (39.36%) followed by average fruit weight (29.73%) and number of branches per plant (27.18%). High estimates of heritability were recorded for different characters viz., average fruit weight (98.6%) followed by total soluble solids (97.8%), total sugars (97.7%) and days to anthesis of first pistillate flowers (97.2%). The parameters which observed were found to be very high estimate value of genetic advance in per cent of mean of (60.14%) average fruit weight (60.14%) followed by titratable acidity (53.73%), number of branches per plant (53.47%), total soluble solids (52.81%) and marketable fruit yield per plant (47.87%).

scholarly journals Characterization of mango (Mangifera indica L.) genotypes based on physio-chemical quality attributes

2017 ◽  
Vol 9 (4) ◽  
pp. 2199-2204
Author(s):  
Lokesh Bora ◽  
A. K. Singh ◽  
C. P. Singh
Keyword(s):  
Mangifera Indica ◽  
Quality Attributes ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Chemical Quality ◽  
Fruit Crops ◽  
Total Soluble Solids ◽  
Climatic Regions

Evaluation of fruit crops has been successfully utilized for studying the performance of varieties under different agro climatic regions time to time. In the present study cultivars were characterized on the basis of their physico-biochemical attributes. “Mallika” and “Neelgoa” were found superior in terms of fruit weight (321.87 g), size (12.55 cm, 8.13 cm), pulp weight (257.91 g) and pulp stone ratio (7.71) respectively. “Mallika” excelled in terms of sugar (20.82), while “Amrapali” in carotenoids (8.38 mg/100 g). Among them, Mallika (22.41◦B) possessed the high-est amount of total soluble solids while lowest amount in Langra (16.90 ◦B) whereas maximum titrable. The study shows the potential of Amrapali in terms of its quality, being late can meet the demand for later period when no other cultivar is available.

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