scholarly journals Heat Treatment in Two Tomatoes Cultivars: A Study of the Effect 3 on a Physiological and Growth Recovery

2021 ◽  
Author(s):  
Sherzod Nigmatullayevich Rajametov ◽  
Eun Young Yang ◽  
Hyo Bong Jeong ◽  
Myeong Cheoul Cho ◽  
Soo-Young Chae ◽  
...  
Keyword(s):  
Heat Tolerance ◽  
Reproductive Traits ◽  
Fruit Weight ◽  
Seedling Stage ◽  
Fresh Weight ◽  
Tomato Cultivar ◽  
Fruit Length ◽  
Tomato Cultivars ◽  
Susceptible Tomato ◽  
Fruit Diameter

High temperature (HT) significantly affects the crop physiological traits and reduces the 12 productivity in plants. To increase yields as well as survival of crops under HT, developing heat13 tolerant plants is one of the main targets in crop breeding programs. The present study attempted 14 to investigate the linkage of the heat tolerance between the seedling and the reproductive growth 15 stages of tomato cultivars ’Dafnis‘ and ’Minichal’. This research was undertaken to evaluate heat 16 tolerance under two experimental designs such as screening at seedling stage and screening from 17 reproductive traits in greenhouses. Survival rate and physiological responses in seedlings of 18 tomatoes with 4-5 true leaf were estimated under HT (40 °C, RH 70%, day/night, respectively) and 19 under two control and HT greenhouse conditions (day time 28 °C and 40 °C, respectively). Heat 20 stress significantly affected physiological-chemical (photosynthesis, electrolyte conductivity, 21 proline) and vegetative parameters (plant height, shoot fresh weight, root fresh weight) in all 22 tomatoes seedlings. The finding revealed that regardless of tomato cultivars the photosynthesis, 23 chlorophyll, total proline and electrical conductivity parameters were varied in seedlings during the 24 heat stress period. The heat tolerance rate of tomatoes in the seedling stage might not be associated 25 always with reproductive parameters. HT reduced the fruit parameters likeas fruit weight (31.9%), 26 fruit length (14.1%), fruit diameter (19.1%) and fruit hardness (9.1%) in compared to NT under HT 27 in heat susceptible tomato cultivar ‘Dafnis’, while in heat tolerant cultivar ‘Minichal’ fruit length 28 (7.1%) and fruit diameter (12.1%) was decreased by the affect of HT but on the contrary fruit weight 29 (3.6%) and fruit hardness (8.3%) were increased. In conclusion, screening and selection for tomatoes 30 should be evaluated at the vegetative and reproductive stages with consideration of reproductive 31 parameters.

scholarly journals Heat Treatment in Two Tomato Cultivars: A Study of the Effect on Physiological and Growth Recovery

Horticulturae ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 119
Author(s):  
Sherzod Nigmatullaevich Rajametov ◽  
Eun Young Yang ◽  
Hyo Bong Jeong ◽  
Myeong Cheoul Cho ◽  
Soo Young Chae ◽  
...  
Keyword(s):  
Heat Stress ◽  
Heat Tolerance ◽  
Fruit Weight ◽  
Seedling Stage ◽  
Reproductive Parameters ◽  
Fresh Weight ◽  
Fruit Length ◽  
Tomato Cultivars ◽  
Heat Tolerant ◽  
Fruit Diameter

High temperature (HT) significantly affects crop physiological traits and reduces productivity in plants. To increase yields as well as survival of crops under HT, developing heat-tolerant plants is one of the main targets in crop breeding programs. The present study attempted to investigate the linkage of the heat tolerance between the seedling and reproductive growth stages of tomato cultivars ’Dafnis‘ and ’Minichal.’ This research was undertaken to evaluate heat tolerance under two experimental designs such as screening at seedling stage and screening from reproductive traits in greenhouses. Survival rate and physiological responses in seedlings of tomatoes with 4-5 true leaves were estimated under HT (40 °C, RH 70%, day/night, respectively) and under two control and HT greenhouse conditions (day time 28 °C and 40 °C, respectively). Heat stress significantly affected physiological–chemical (photosynthesis, electrolyte conductivity, proline) and vegetative parameters (plant height, shoot fresh weight, root fresh weight) in all tomato seedlings. The findings revealed that regardless of tomato cultivars the photosynthesis, chlorophyll, total proline and electrical conductivity parameters were varied in seedlings during the heat stress period. The heat tolerance rate of tomatoes in the seedling stage might not always be associated with reproductive parameters. HT reduced fruit parameters such as fruit weight (31.9%), fruit length (14.1%), fruit diameter (19.1%), and fruit hardness (9.1%) compared to NT under HT in heat-susceptible tomato cultivar ‘Dafnis’, while in heat-tolerant cultivar ‘Minichal’ fruit length (7.1%) and fruit diameter (12.1%) was decreased by the effects of HT, but on the contrary fruit weight (3.6%) and fruit hardness (8.3%) were increased. In conclusion, screening and selection for tomatoes should be evaluated at the vegetative and reproductive stages with consideration of reproductive parameters.

scholarly journals Physico-chemical characteristics of pomegranate accessions from the Kurdistan region, Iraq

2018 ◽  
Vol 63 (4) ◽  
pp. 355-366
Author(s):  
Saadatian Mohammad ◽  
Paiza Abdurahman ◽  
Kanar Salim ◽  
Pershang Younis ◽  
Hewen Abdurahman ◽  
...  
Keyword(s):  
Fruit Size ◽  
Chemical Properties ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Kurdistan Region ◽  
Fresh Weight ◽  
Fruit Length ◽  
Physico Chemical ◽  
Fruit Diameter

Some physico-chemical properties of ten pomegranate accessions collected from different districts in the Kurdistan region of Iraq were investigated in this paper. Considerable correlations between the characteristics studied were found and valuable pomological traits were observed. Cluster analysis showed the homonyms between some pomegranate accessions. Principle component analysis reported that the component describing the greatest variability also positively correlated with fruit weight, total aril weight, total peel weight, volume of juice, total soluble solids (TSS), fruit length, fruit diameter, pH, aril length, and 100-seed fresh weight, but negatively correlated with titratable acidity (TA). Fruit weight was firmly correlated with total aril weight, total peel weight, volume of juice, TSS, aril length, 100-seed fresh weight, fruit length and fruit diameter. The volume of juice was correlated with TSS, aril length, 100-seed fresh weight, fruit length, fruit diameter and it was observed that with an increase in the fruit size, the volume of juice increased as well. The correlation between total phenolic compounds and antioxidant capacity was not observed. The associations found among physical and chemical traits suggest that consumers should use large fruits with large arils so that they have more juice. Thus, ?Choman?, ?Raniyeh? and ?Halabja? were juicier than other accessions.

scholarly journals Effect of Fruit Bagging on Eggplant Fruit and Shoot Borer for Quality Eggplant Production

2021 ◽  
Vol 3 (2) ◽  
pp. 41-44
Author(s):  
AKM Quamruzzaman ◽  
Ferdouse Islam ◽  
M. Nazim Uddin ◽  
M. Shahadath Hossain
Keyword(s):  
Fruit Weight ◽  
Fruit Yield ◽  
The Other ◽  
Fresh Weight ◽  
Negative Effects ◽  
Technical Feasibility ◽  
Shoot Borer ◽  
Fruit Length ◽  
Fruit Abortion ◽  
Fruit Diameter

The study was tested the technical feasibility of bagging eggplant fruits during production to protect them against Eggplant fruit and shoot borer (EFSB) following randomized complete block with 6 treatments. Highest number of marketable fruits per plant was produced by imported white bag (12.33), which was followed by butter paper bag (10.67). Maximum aborted fruit was obtained from the imported brown bag (23.33%) and HDPE bag (20.00%). The highest average fruit weight (363.33 g) was obtained from fruits bagged with Imported white, while maximum fruit length and fruit diameter was also produced from imported white bag (15.27 cm and 11.23 cm, respectively). Zero percent damage by eggplant fruit and shoot borer was produced by imported brown bag, imported white bag and butter paper bag, while higher infection was observed in open fruit (control) (17.70 %), HDPE bag (11.70 %). Bagging eggplant fruit produced 38.78 to 58.20 t/ha, while open fruit (control) produced only 35.66 t/ha. The highest calculated fruit yield 58.20 tons/ha was estimated from imported white bag and other bagging fruits were local brown bag (46.74 t/ha), HDPE bag (45.00 t/ha), butter paper bag (43.23 t/ha). The bagging of eggplant fruits with imported white bag and butter paper bag were more effective in reducing damage by eggplant fruit and shoot borer than the other bagging treatments and the control. These two treatments produced higher number of consumers preferred fruit, without negative effects on the color of the skin, fresh weight and fruit abortion, thus resulting in higher economic gains.

scholarly journals Effect of Heat Treatment on Physiological and Recovery Growth Status of Two Tomato Cultivars With Different Heat Susceptibility

2021 ◽  
Author(s):  
Sherzod Nigmatullayevich Rajametov ◽  
Eun Young Yang ◽  
Hyo Bong Jeong ◽  
Myeong Cheoul Cho ◽  
Soo-Young Chae ◽  
...  
Keyword(s):  
Heat Stress ◽  
High Temperature ◽  
Stress Tolerance ◽  
Heat Tolerance ◽  
Fruit Set ◽  
Fruit Size ◽  
Seedling Stage ◽  
Screening Methods ◽  
Tomato Cultivars ◽  
Heat Tolerant

High temperature seriously effects on plant vegetative and reproductive development and reduces productivity of plants, while to increase crop yield is the main target in most crop heat stress tolerance improvement breeding programs, not just survival, under high temperature. Our aim was to compare temperature stress tolerance in two commercial tomato cultivars “Dafnis” (big fruit size) and “Minichal” (cherry fruit size) to develop early screening methods and find out survival rate and physiological responses of tomato cultivars on high temperature (40°C and within 70% RH, day/night) in 4-5 true leaf seedling stage- (4LS) and identifies the linkage of heat tolerance with fruit set and leaf heat damage rates (LHD) in seedling stage with subsequent vegetative traits at recovery. Results showed that heat stress significantly affected on physiological-chemical and vegetative parameters of seedlings regardless of tomato cultivars. Survival and the threshold level of high temperature tolerance in the seedlings of cv. “Dafnis” and “Minichal” were identified on days 7 and 9, respectively. Our findings revealed that photosynthesis (PN, Gs, Ci, Tr) parameters were increased and CHL content persisted steady value in cv. “Minichal” during heat stress period, however EC and RPL rates were lower than cv. “Dafnis”. Heat stress reduced the SFW in both cultivars in seedling stage, but PH and RFW were significantly decreased in the heat tolerant cv. “Minichal”, whereas this parameters were not significantly ranged in the heat susceptible cv. “Dafnis”. Additionally, there no found linkage between vegetative parameters with decreasing of PN and CHL rates during HT of seedlings. In plants of cv. “Minichal” with LHD-25, 50 and 75% were no found significant differences in PH, whereas in cv. “Dafnis” significant differences were determined in plants with LHD-75%, and the significant differences in rates of SFW and RFW were observed in plants of cv. “Dafnis” having LHD-75% for 28 days of recovery at NT condition. Taken together, we concluded that heat stress affected on physiological parameters regardless of tolerance level, and to identify heat tolerant genotype in tomato breeding program, screening and selection genotypes have to be evaluated at the vegetative and reproductive stages with consideration fruit size types. Since we could not find linkage between heat tolerances in seedling stage with fruit set at the reproductive stage and fruit set cannot be used as a general predictor of heat tolerance.

scholarly journals Epistatic gene control on the yield of tomato at medium elevation in the tropical agroecosystem

2019 ◽  
Vol 20 (7) ◽  
Author(s):  
FAJAR PRAKOSO MAWASID ◽  
MUHAMAD SYUKUR ◽  
TRIKOESOEMANINGTYAS TRIKOESOEMANINGTYAS
Keyword(s):  
Flowering Time ◽  
Genetic Model ◽  
Fruit Weight ◽  
Gene Control ◽  
Harvest Time ◽  
Fruit Length ◽  
The Cross ◽  
Tropical Agroecosystem ◽  
Duplicate Epistasis ◽  
Fruit Diameter

Abstract. Mawasid FP, Syukur M, Trikoesoemaningtyas. 2019. Epistatic gene control on the yield of tomato at medium elevation in the tropical agroecosystem. Biodiversitas 20: 1880-1886. Cultivation of tomatoes on the middle-low plain generally decreases the quantity and quality of the yield due to high-temperature stress. Increasing the size and weight of lowland tomatoes is needed to enhance national production. Information on the action and genetic model of target characters is needed in the preparation of the assembly program, especially for selection needs. This study aims to obtain genetic information and heritability of tomato yield characters, as a basis for assembling large tomato varieties for the lowlands. The study was conducted using six populations (P1, P2, F1, BCP1, BCP2, and F2) resulting from two different crosses of 99D x Tora (C-I) and 97D x Tora (C-II). The results show that the action of non-additive genes and non-allelic interactions has a large value, with duplicate epistasis being more dominant than complementary epistasis. Duplicate epistasis was found in the character of harvest time, fruit length, fruit diameter, fruit weight in cross I and flowering time, harvest time, fruit length, fruit diameter, and number of fruits in cross II, while complementary epistasis was found in flowering time, fruit weight per plant, number of fruits in cross I, and fruit weight, fruit weight per plant in cross II. Moderate to high heritability was found in the character of fruit length, fruit diameter, fruit weight, and fruit weight per plant. The values are higher in population from the cross I (99D x Tora) for each character, indicating that the cross I has a higher potential for genetic progress than cross II. Selection is recommended when the homozygosity has increased, using the Bulk method or Single Seed Decent. The two methods above can maintain variability in the next generation, so epistasis genes that control target characters are not drastically eliminated.

scholarly journals Variability, correlation and path co-efficient analysis of bitter gourd (Momordica charantia L.)

2016 ◽  
Vol 40 (4) ◽  
pp. 607-618 ◽  
Author(s):  
MH Khan ◽  
SR Bhuiyan ◽  
KC Saha ◽  
MR Bhuyin ◽  
ASMY Ali
Keyword(s):  
Genetic Parameters ◽  
Fruit Weight ◽  
Momordica Charantia ◽  
Bitter Gourd ◽  
Fruit Length ◽  
Wide Variability ◽  
Effect On Yield ◽  
Positive Direct ◽  
Positive Effect ◽  
Fruit Diameter

Seventeen genotypes of bitter gourd (Momordica charantia L.) were studied in a field experiment conducted at the experimental field of Sher-e-Bangla Agricultural University, Dhaka, during April 2009 to September 2010. The objectives of the study were to measure the variability among the genotypes for yield and yield contributing characters, estimate genetic parameters, association among the characters and their contribution to yield. There was a great deal of significant variation for all the characters among the genotypes. Considering genetic parameters high genotypic co-efficient of variation (GCV) was observed for branches per vine, yield per plant and number of fruit per plant whereas low genotypic co-efficient of variation (GCV) was observed for days to first male and female flowering. In all the cases, it was found that phenotypic co-efficient of variation was greater than genotypic co-efficient of variation. Highest genotypic and phenotypic co-efficient of variation was observed in branch per vine, fruit length, fruit weight and number of fruit plant which indicated a wide variability among the genotypes and offered better scope of selection. The results obtained showed that fruit length showed low direct and positive effect on yield per plant and indirect positive effect on yield per plant via fruit diameter and average fruit weight. Similar result was found for fruit diameter. Average fruit weight and number of fruits per plant showed high direct and positive effect on yield per plant. Path analysis revealed that average fruit weight, number of fruits per plant, days to male flowering and fruit length had positive direct effect on fruit yield. Considering group distance and the agronomic performance, the inter genotypic crosses between G2& G5; G2&G14; G14&G15; G2&G15; G10&G11; G10&G13; G11&G13; G5&G15; G5&G14 might be suitable choice for future hybridization programme.Bangladesh J. Agril. Res. 40(4): 607-618, December 2015

scholarly journals Heritability and Genetic Advance among Chili Pepper Genotypes for Heat Tolerance and Morphophysiological Characteristics

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Magaji G. Usman ◽  
M. Y. Rafii ◽  
M. R. Ismail ◽  
M. A. Malek ◽  
Mohammad Abdul Latif
Keyword(s):  
High Temperature ◽  
Plant Height ◽  
Heat Tolerance ◽  
Disease Incidence ◽  
Fruit Weight ◽  
Photosynthesis Rate ◽  
Chili Pepper ◽  
Genetic Advance ◽  
Fruit Length ◽  
Weight Number

High temperature tolerance is an important component of adaptation to arid and semiarid cropping environment in chili pepper. Two experiments were carried out to study the genetic variability among chili pepper for heat tolerance and morphophysiological traits and to estimate heritability and genetic advance expected from selection. There was a highly significant variation among the genotypes in response to high temperature (CMT), photosynthesis rate, plant height, disease incidence, fruit length, fruit weight, number of fruits, and yield per plant. At 5% selection intensity, high genetic advance as percent of the mean (>20%) was observed for CMT, photosynthesis rate, fruit length, fruit weight, number of fruits, and yield per plant. Similarly, high heritability (>60%) was also observed indicating the substantial effect of additive gene more than the environmental effect. Yield per plant showed strong to moderately positive correlations (r=0.23–0.56) at phenotypic level while at genotypic level correlation coefficient ranged from 0.16 to 0.72 for CMT, plant height, fruit length, and number of fruits. Cluster analysis revealed eight groups and Group VIII recorded the highest CMT and yield. Group IV recorded 13 genotypes while Groups II, VII, and VIII recorded one each. The results showed that the availability of genetic variance could be useful for exploitation through selection for further breeding purposes.

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 Phenotypic appearance the yield character of five genotypes of cayenne pepper at Sukamantri, Ciamis

Zuriat ◽  
2018 ◽  
Vol 29 (2) ◽  
pp. 72
Author(s):  
Eva Oktaviani ◽  
Neni Rostini ◽  
Agung Karuniawan
Keyword(s):  
Sea Level ◽  
Block Design ◽  
Fruit Weight ◽  
Potential Yield ◽  
Phenotypic Characters ◽  
Fruit Length ◽  
Randomized Block Design ◽  
Phenotypic Character ◽  
Fruit Diameter ◽  
Yield Character

The purpose of this experiment is to evaluate the phenotypic appearance the yield character of five genotypes of cayenne pepper at Sukamantri, Ciamis region. The experiment used a randomized block design, with five replications. The experiment material consists of five genotypes of cayenne pepper, namely Unpad Ratuni, CR8873, Dewata, Taruna, and Rabani. The experiment was conducted at Sukamantri, Ciamis with altitude of 983 m above sea level (asl.) from August 2017 to February 2018. Data observed included fruit length, fruit diameter, fruit weight per fruit, fruit weight per plant, fruit weight per plot, and fruit weight per hectare. The experiment results show that there are differences in phenotypic characters among the five genotypes tested. Genotypes of the Gods, CR8873, and Ratuni Unpad show the highest potential yield (10.961 ton/ha, 0.345, and 10.232), with fruit weight of fruit per 1.382 gram, 0.911 grams, and 1.311 grams.Keywords: cayenne pepper, phenotypic character, yield

scholarly journals Polymorphism of morphometric parameters of the flower and fruit of the Sargent apple tree (Malus sargentii Rehl)

2021 ◽  
Vol 6 (48) ◽  
pp. 18-18
Author(s):  
Vitaly Donskih ◽  
Tatiana Aniskina ◽  
Victоria Kryuchkova
Keyword(s):  
Apple Tree ◽  
Inverse Correlation ◽  
Botanical Garden ◽  
Fruit Weight ◽  
Cultivated Plants ◽  
Morphometric Traits ◽  
Fruit Length ◽  
Flower Diameter ◽  
Number Of Seeds ◽  
Fruit Diameter

The Sargent apple tree is highly valued for its decorative qualities, it is used in breeding work when developing new ornamental varieties. To assess the breeding potential, as well as planning crosses, information is needed on the variability of the morphometric traits of the apple flower and fruit, as well as the presence of a relationship between these traits. The research was carried out in the laboratory of cultivated plants of the Tsytsin Main Botanical Garden on 12 quantitative traits of flower and fruit. It was found that almost all traits are characterized by a low level of polymorphism of 7-15% (flower diameter - 13.2%, pedicel thickness - 14.9%, peduncle length - 8.3%, fruit length - 4.7%, fruit diameter - 5.7%) or an average level (16-25%), except for the mass of seeds (40%) and the number of seeds in the fruit (33.9%). An inverse correlation was found between the length of the anther and the number of seeds inside the fruit (r = -0.46), as well as strong direct relationships between the diameter of the fruit and the weight of the fruit (r = 0.79) and the diameter of the fruit and the length of the fruit (r = 0, 78). A reliable direct relationship between the group was also revealed: flower length, filament length, pedicel thickness, fruit length, fruit diameter, fruit weight. Keywords: POLYMORPHISM, FLOWERS, CRABAPPLES, SORBOMALUS, MALUS SARGENTII, SARGENT APPLE TREE

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